CYUSBS234

CYUSBS234 USB-Serial Development Kit Guide Doc. # 001-86632 Rev. ** Cypress Semiconductor 198 Champion Court San Jose, CA 95134-1709 Phone (USA): 800.858.1810 Phone (Intnl): +1.408.943.2600 http://www.cypress.com Copyrights © Cypress Semiconductor Corporation, 2013. The information contained herein is subject to change without notice. Cypress Semiconductor Corporation assumes no responsibility for the use of any circuitry other than circuitry embodied in a Cypress product. Nor does it convey or imply any license under patent or other rights. Cypress products are not warranted nor intended to be used for medical, life support, life saving, critical control or safety applications, unless pursuant to an express written agreement with Cypress. Furthermore, Cypress does not authorize its products for use as critical components in lifesupport systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress products in life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress against all charges. Any Source Code (software and/or firmware) is owned by Cypress Semiconductor Corporation (Cypress) and is protected by and subject to worldwide patent protection (United States and foreign), United States copyright laws and international treaty provisions. Cypress hereby grants to licensee a personal, non-exclusive, non-transferable license to copy, use, modify, create derivative works of, and compile the Cypress Source Code and derivative works for the sole purpose of creating custom software and or firmware in support of licensee product to be used only in conjunction with a Cypress integrated circuit as specified in the applicable agreement. Any reproduction, modification, translation, compilation, or representation of this Source Code except as specified above is prohibited without the express written permission of Cypress. Disclaimer: CYPRESS MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARD TO THIS MATERIAL, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Cypress reserves the right to make changes without further notice to the materials described herein. Cypress does not assume any liability arising out of the application or use of any product or circuit described herein. Cypress does not authorize its products for use as critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress’ product in a life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress against all charges. Use may be limited by and subject to the applicable Cypress software license agreement. CapSense® is a registered trademark of Cypress Semiconductor Corp. All other trademarks or registered trademarks referenced herein are property of the respective corporations. Flash Code Protection Cypress products meet the specifications contained in their particular Cypress PSoC Data Sheets. Cypress believes that its family of PSoC products is one of the most secure families of its kind on the market today, regardless of how they are used. There may be methods, unknown to Cypress, that can breach the code protection features. Any of these methods, to our knowledge, would be dishonest and possibly illegal. Neither Cypress nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not mean that we are guaranteeing the product as ‘unbreakable’. Cypress is willing to work with the customer who is concerned about the integrity of their code. Code protection is constantly evolving. We at Cypress are committed to continuously improving the code protection features of our products. CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 2 Contents Safety Information 1. Introduction 1.1 1.2 1.3 1.4 1.5 1.6 1.7 15 Default Switch and Jumper Settings ..........................................................................16 USB-Serial Enumeration............................................................................................17 USB-Serial Configuration on Windows OS ................................................................19 3.3.1 Connecting CYUSBS234 DVK to Cypress USB-Serial Configuration Utility..19 3.3.2 USB Configuration .........................................................................................21 3.3.3 UART Configuration .......................................................................................25 3.3.3.1 Test Procedure for CYUSBS234 DVK Configured as UART...........28 3.3.3.2 Throughput Determination ...............................................................30 3.3.4 I2C Configuration ...........................................................................................32 3.3.4.1 Test Procedure for CYUSBS234 DVK Configured as I2C ...............35 3.3.5 SPI Configuration ...........................................................................................38 3.3.5.1 Test Procedure for CYUSBS234 DVK Configured as SPI...............42 3.3.6 CapSense Configuration ................................................................................45 3.3.6.1 Test Procedure for CYUSBS234 DVK Configured for CapSense ...49 3.3.7 Battery Charger Detection (BCD) Configuration ............................................52 3.3.7.1 Test Procedure for CYUSBS234 DVK Configured for BCD.............54 3.3.8 CYUSBS234 DVK Restore Default Configuration Settings............................56 4. Hardware 4.1 4.2 4.3 11 CYUSBS234 DVK Software ......................................................................................11 Install Hardware.........................................................................................................14 Uninstall Software......................................................................................................14 3. Kit Operation 3.1 3.2 3.3 7 Kit Contents .................................................................................................................7 Getting Started.............................................................................................................8 Additional Learning Resources....................................................................................8 Technical Support........................................................................................................8 Document History ........................................................................................................9 Documentation Conventions .......................................................................................9 Abbreviations .............................................................................................................10 2. Software Installation 2.1 2.2 2.3 5 59 Board Details .............................................................................................................59 Theory of Operation...................................................................................................61 Functional Description ...............................................................................................62 4.3.1 Features .........................................................................................................62 4.3.2 Power-Supply System....................................................................................63 4.3.3 LEDs ..............................................................................................................64 CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 3 Contents 4.3.4 4.3.5 4.3.6 4.3.7 4.3.8 USB Connector ..............................................................................................65 Serial Communication Block (SCB) ...............................................................66 4.3.5.1 SCB Jumpers...................................................................................66 4.3.5.2 RS-232 Interface..............................................................................67 4.3.5.3 I2C Interface ....................................................................................69 4.3.5.4 SPI Interface ....................................................................................69 4.3.5.5 GPIO Header ...................................................................................70 CapSense Button ...........................................................................................70 Battery Charger Detection..............................................................................71 Reset Switch ..................................................................................................72 5. Additional Information 5.1 A. Appendix A.1 A.2 A.3 A.4 74 Using USB-Serial on a Mac OS .................................................................................74 5.1.1 Using CYUSBS234 DVK in Communications Device Class (CDC) Mode .....74 5.1.2 Using the CYUSBS234 DVK board in Vendor Mode .....................................75 76 Schematic ..................................................................................................................76 CY7C65211 USB-Serial Design Guidelines ..............................................................81 Troubleshooting Guide .............................................................................................84 Bill of Materials (BoM) ...............................................................................................86 CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 4 Safety Information Regulatory Compliance The CYUSBS234 USB-Serial Development kit is intended for use as a development platform for hardware or software in a laboratory environment. The board is an open-system design, which does not include a shielded enclosure. This kit may cause interference to other electrical or electronic devices in close proximity. In a domestic environment, this product may cause radio interference. In such cases, take adequate preventive measures. Also, do not use this board near any medical equipment or RF devices. Attaching additional wiring to this product or modifying the product operation from the factory default may affect its performance and cause interference with other apparatus in the immediate vicinity. If such interference is detected, suitable mitigating measures must be taken. . The CYUSBS234 contains electrostatic discharge (ESD) sensitive devices. Electrostatic charges readily accumulate on the human body and any equipment, and can discharge without detection. Permanent damage may occur on devices subjected to high-energy discharges. Cypress recommends proper ESD precautions to avoid performance degradation or loss of functionality. Store unused CYUSBS234 boards in the protective shipping package. End-of-Life / Product Recycling This kit has an end-of-life cycle after five years from the year of manufacturing mentioned on the back of the box. Contact your nearest recycler for discarding the kit. CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 5 Safety Information General Safety Instructions ESD Protection ESD can damage boards and associated components. Cypress recommends that you perform procedures only at an ESD workstation. If an ESD workstation is not available, use appropriate ESD protection by wearing an antistatic wrist strap attached to the chassis ground (any unpainted metal surface) on the board when handling parts. Handling Boards CYUSBS234 boards are sensitive to ESD. Hold the board only by its edges. After removing the board from its box, place it on a grounded, static-free surface. Use a conductive foam pad if available. Do not slide the board over any surface. . Using Batteries Use only the recommended rechargeable Li-ion battery. Check the polarity of the battery connector before connecting to the board. CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 6 1. Introduction Thank you for your interest in the CYUSBS234 USB-Serial Development Kit (DVK). This DVK is designed as an easy-to-use kit, showcasing the unique features of Cypress's CY7C65211 USBSerial bridge controller. This device includes CapSense®, Cypress's leading capacitive touchsensing technology, and the Battery Charger Detection (BCD) feature, which is compliant with the USB Implementers Forum (USB-IF) Battery Charging Specification. This kit includes EEPROMs to demonstrate I2C and SPI, an RS-232 line-driver for UART, a CapSense touch button, and a Lithium ion (Li+) battery charger circuit. CY7C65211 is the first full-speed USB-Serial bridge controller that offers a single-channel configurable serial interface (UART/I2C/SPI). The controller also features BCD and capacitive touch sensing at low suspend-state currents of 5 uA. The controller is offered in a 4x4-mm, 24-pin QFN package to meet the dimensional requirements of portable devices. 1.1 Kit Contents The CYUSBS234 kit contains the following items: ■ CYUSBS234 DVK board ■ Quick start guide ■ USB standard-A to micro-B cable ■ Jumper wires ■ Extra jumpers ■ 5-V power supply adapter ■ CY7C65211-24LTXI sample silicon chips CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 7 Introduction Figure 1-1. Kit Contents Inspect the contents of the kit; if you find any part missing, contact your nearest Cypress sales office for assistance or go to www.cypress.com/go/support. 1.2 Getting Started This kit guide helps you get acquainted with the CYUSBS234 DVK. The Software Installation chapter on page 11 provides step-by-step instructions to install the CYUSBS234 DVK software. The Kit Operation chapter on page 15 describes how the kit operates, and explains how to configure the CY7C65211 USB-Serial bridge controller using the Cypress USB-Serial Configuration Utility. The Hardware chapter on page 59 discusses the kit hardware. The Additional Information chapter on page 74 explains how to run the CYUSBS234 kit on a Mac OS. The Appendix chapter on page 76 provides the schematics, layout, bill of materials (BoM), troubleshooting guidelines, and board layout design guidelines for the CY7C65211 USB-Serial bridge controller. 1.3 Additional Learning Resources Visit the USB-Serial web page, www.cypress.com/go/usbserial for additional learning resources in the form of datasheets and application notes. 1.4 Technical Support For assistance, go to www.cypress.com/go/support or contact our customer support at +1 (800) 5414736 Ext. 8 (in the USA) or +1 (408) 943-2600 Ext. 8 (International). CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 8 Introduction 1.5 1.6 Document History Revision PDF Creation Date Origin of Change ** 09/12/2013 MVTA Description of Change Initial version of kit guide. Documentation Conventions Table 1-1. Document Conventions for Guides Convention Usage Courier New Displays file locations, user entered text, and source code: C:\ ...cd\icc\ Italics Displays file names and reference documentation: For example, CYUSBS234 USB DVK.cysusb [Bracketed, Bold] Displays keyboard commands in procedures: [Enter] or [Ctrl] [C] File > Open Represents menu paths: File > Open > New Project Bold Displays commands, menu paths, and icon names in procedures: Click the File icon and then click Open. Times New Roman Displays an equation: 2+2=4 Text in gray boxes Describes cautions or unique functionality of the product. CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 9 Introduction 1.7 Abbreviations The following table lists the abbreviations used in this kit guide. Abbreviation BCD Definition battery charger detection CDC communications device class CDP charging downstream port CPHA clock phase CPOL clock polarity CTS clear to send DCD data carrier detect DCP dedicated charging port DSR data set ready DTR data terminal ready DVK development kit ESD electrostatic discharge I2C Inter Integrated Circuit LDO low drop-out PC personal computer PID product ID RI ring indicator RTS request to send SCB serial communication block SDP standard downstream port SPI serial peripheral interface SSN slave select n UART universal asynchronous receiver transmitter USB universal serial bus VID vendor ID CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 10 2. 2.1 Software Installation CYUSBS234 DVK Software Follow these steps to install the CYUSBS234 DVK software: 1. Download and install the CYUSBS234 DVK software from www.cypress.com/go/CYUSBS234. The CYUSBS234 DVK software is available in two different installer formats for download: a. CYUSBS234 Kit ISO: This file is a complete package, stored in a CD-ROM image format that can be used to create a CD, or extract using ISO extraction programs, such as WinZip or WinRAR. This file includes all the required software, utilities, drivers, hardware files, and user documents. b. CYUSBS234 Kit Setup: This installation package contains the files related to the kit. It does not include the Windows installer, Microsoft .NET Framework, and Visual C++ redistributable packages. If these packages are not on your computer, the installer automatically downloads and installs them from the Internet. 2. Run cyautorun.exe to start the installation process. 3. Click Install CYUSBS234 DVK to start the installation, as shown in Figure 2-1. Figure 2-1. Kit Installer Startup Screen CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 11 Software Installation 4. Select the folder to install the CYUSBS234 DVK-related files. Choose the directory and click Next. Figure 2-2. Default Path for DVK Installation 5. The CYUSBS234 Kit ISO installer automatically installs the required software, if it is not present on your computer. The CYUSBS234 Kit Setup installer directs you to download the required software from the Internet. 6. Select the installation type. The drop-down menu has two options: Typical (installs all the required features) and Custom. Click Next after you select the installation type. Figure 2-3. Installation Type Options CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 12 Software Installation 7. Read the Cypress License Agreement and make a selection based on the terms of the license agreement. Click Next to continue the installation. Figure 2-4. Cypress License Agreement 8. When the installation begins, a list of packages appears on the installation page. A green check mark appears adjacent to every package after successful installation. If a message from Windows Security appears, accept the Always trust software from Cypress Semiconductor option and click Install. Figure 2-5. Installation Page CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 13 Software Installation 9. Enter your contact information or select the Continue Without Contact Information check box. Click Finish to complete the CYUSBS234 DVK installation. Figure 2-6. CYUSBS234 DVK Installation Complete 10.After the installation is complete, the kit contents are available at the following location: \Cypress\CYUSBS234 DVK\1.0\ 2.2 Install Hardware This kit does not require any additional hardware installation. 2.3 Uninstall Software You can uninstall the CYUSBS234 DVK software using one of the following methods: 1. Go to Start > All Programs > Cypress > Cypress Update Manager; click the Uninstall button. 2. Go to Start > Control Panel > Programs and Features; select the program CYUSBS234 DVK 1.0 Rev** from the list and click the Uninstall/Change button. CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 14 3. Kit Operation The CYUSBS234 kit demonstrates the features of the CY7C65211 USB-Serial bridge controller. The CYUSBS234 DVK board is designed to work at 5 V. Figure 3-1 shows an image of the board with references to the onboard components. Figure 3-1. CYUSBS234 DVK Board #BUUFSZ $IBSHFS
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+ 15 Kit Operation 3.1 Default Switch and Jumper Settings The switches and jumpers on the CYUSBS234 DVK board are shipped with default settings for the USB bus-powered mode, serial interface in the UART mode, and CapSense functionality. The board is powered by the PC or the hub when it is connected by a USB standard-A to micro-B cable. Figure 3-2 and Table 3-1 provide the default configuration settings for the switches and jumpers. Figure 3-2. Default Jumper and Switch Settings J29 J4, J8, J7 J28 J17, J19, J21, J20 SW1 J23 J3 TP10 SW2 J18, J22 Table 3-1. Default Settings Switch/Jumper Position/Pins to be Shorted SW1 Position 2-3 Power supply selection switch set to bus-powered operation SW2 Position 2-3 Battery power cut-off J3 OPEN VBAT LED J4 1 and 2 Battery charge enable control pin #0 (BCD0) J7 1 and 2 Bus detect J8 1 and 2 Battery charge enable control pin #1 (BCD1) J17 2 and 4 SCB configured for UART J18 1 and 2 SCB configured for UART J19 2 and 4 SCB configured for UART J20 2 and 4 SCB configured for UART J21 2 and 4 SCB configured for UART J22 1 and 2 J23 Open J28 2 and 3 CapSense watershield feature disabled J29 1 and 2 VBUS detection Function SCB configured for UART GPIO header CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 16 Kit Operation 3.2 USB-Serial Enumeration The CYUSBS234 DVK board connects to the PC by a USB standard-A to micro-B cable. The board enumerates as a composite USB device. Follow these steps for device enumeration: 1. To power up the board: a. Self-powered mode - Set SW1 to position 1-2 and connect the 5-V power-supply adapter to J1 on the board. b. Bus-powered mode - Set the switch SW1 to position 2-3. 2. Connect the USB standard-A to micro-B cable to the PC and J2 on the board. 3. The PC detects the board and the software driver is automatically bound to the USB device. Note If the driver installation is unsuccessful, run setup.exe from the following folders with administrative privileges: \Cypress\CYUSBS234 DVK\1.0\driver\cyusb3 \Cypress\CYUSBS234 DVK\1.0\driver\cyusbserial For more information, refer to the Cypress USB-Serial Driver Installation Guide at the following location: \Cypress\CYUSBS234 DVK\1.0\documentation\ Figure 3-3. Install Location of cyusb3 Driver Figure 3-4. Install Location of cyusbserial Driver Note If a "Welcome to the Found New Hardware Wizard" message appears, select the Yes, this time only option and click Next to continue the installation. 4. When the software drivers are successfully bound, the board enumeration is complete. The board appears as a composite device in the device manager of the Windows OS (to launch the device manager in Windows 7, go to Start > Control Panel > Device Manager), as shown in Figure 3-5. ■ USB-Serial Adapter under CypressUSBConsoleWindowsDriver CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 17 Kit Operation ■ USB Serial Port (COM#) under Ports (COM & LPT) ■ USB-Serial (Single Channel) Vendor MFG under Universal Serial Bus controllers Figure 3-5. CYUSBS234 DVK Enumeration as Single UART in Device Manager CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 18 Kit Operation 3.3 USB-Serial Configuration on Windows OS Using the Cypress USB-Serial Configuration Utility, you can configure the onboard CY7C65211 USB-Serial bridge controller as a USB-UART bridge, a USB-I2C bridge, or a USB-SPI bridge. You can also use this utility to configure the CY7C65211 device for CapSense and BCD functionality according to your requirements. The following sections provide detailed descriptions about the device features and configurations. By default, the CYUSBS234 DVK board is configured for the USB-UART bridge and CapSense functionality. 3.3.1 Connecting CYUSBS234 DVK to Cypress USB-Serial Configuration Utility Follow these steps to connect the device using the Cypress USB-Serial Configuration Utility: 1. Connect the USB standard-A to micro-B cable to your PC and the J2 connector on the board. 2. Set switch SW1 to position 2-3 for bus-powered operation. 3. Run the configuration utility from Start > All Programs > Cypress > CYUSBS234 DVK > USB Serial Configuration Utility. For a detailed description about the configuration utility, refer to the USB-Serial Configuration Utility User Guide at the following location: \Cypress\CYUSBS234 DVK\1.0\documentation 4. The following figure shows the startup screen of the Cypress USB-Serial Configuration Utility. Figure 3-6. Configuration Utility Startup Screen CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 19 Kit Operation 5. Click the Select Target tab. Select the device from the drop-down menu and click Connect. Figure 3-7. Configuration Utility Select Target Tab Note The “version” number shown in Figure 3-7 may vary depending upon the latest firmware version on the USB-Serial bridge controller. 6. A new tab with the connected device's default settings appears, as shown in Figure 3-8. This tab allows you to modify the device configuration settings, which you can program into the device. Figure 3-8. Configuration Utility USB Tab CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 20 Kit Operation 3.3.2 USB Configuration The USB tab shows the current values of the board’s configurable USB and system parameters. Follow these steps to view and modify the parameters for the USB configuration: 1. Follow steps 1 to 6 in the section Connecting CYUSBS234 DVK to Cypress USB-Serial Configuration Utility on page 19 to connect the board to the Cypress USB-Serial Configuration Utility. 2. Click the USB tab. Figure 3-9. Configuration Utility USB Tab 3. You can configure the following USB parameters using the Cypress USB-Serial Configuration Utility: a. Vendor ID (VID) b. Product ID (PID) c. Power Mode (bus-powered or self-powered) d. bMaxPower e. Remote wake-up and Suspend f. Manufacturer string g. Product string h. Serial number ■ Vendor ID (VID) and Product ID (PID) Default value: 0x04B4 and 0x0002 A 2-byte vendor ID and product ID must be set in hexadecimal format. The VID and PID options cannot be zero or empty. The Cypress VID/PID is programmed by default. To change this, uncheck the Use Cypress VID/PID option. Enter the VID and press the [Tab] or [Enter] key to enable and enter the PID. CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 21 Kit Operation ■ Power Mode Default value: Bus powered The USB power mode can be set to either self-powered or bus-powered mode. ■ bMaXPower Default Value: 100 mA The USB device current requirement value can be set in the range 1 to 500 mA in steps of 2 mA units in bus-powered mode and 0 mA to 500 mA in steps of 2 mA units in self-powered mode. ■ Remote Wake-up and Suspend Default value for Remote wake-up: Enabled Default value for Suspend: Enabled Default value for Power Enable: Not enabled (for this board) Click the Configure button (next to Remote Wake-up and Suspend in the USB tab) to enable or disable Remote wake-up and Suspend. Figure 3-10. Configure Remote Wake-up and Suspend Window Configurable options: ❐ Remote wake-up: When enabled, this option can be used to wake up the USB host from suspend state remotely from the attached device. By checking the Invert Polarity box, polarity of the wake-up pin can be inverted. J23.6 (GPIO header) on this board is a wake-up pin. To test the Remote wake-up functionality, follow this procedure: a. Connect the Remote wake-up pin (J23.6) to GND (J23.10) using the provided jumper wire. b. Connect the CYUSBS234 DVK board to a PC using USB standard A to micro-B cable. c. Set the PC into sleep mode. When the PC enters sleep mode, the USB host on the PC side suspends the connected CYUSBS234 DVK board. d. By default, the Remote wake-up pin is active high. Disconnect the Remote wake-up pin (J23.6) from GND (J23.10) and touch TP10 (V3P3), as shown in Figure 3-2. If the Invert Polarity option is selected, then connect the pin to GND to wake up the USB host from the Suspend state. ❐ Suspend: By checking this box, the Suspend option is enabled. When the USB bus enters the Suspend state, the suspend pin is asserted. By checking the Invert Polarity box, polarity of the Suspend pin can be inverted. J23.4 (GPIO header) on this board is a suspend pin. ❐ Power enable: The Power enable function is enabled by assigning a GPIO from the dropdown menu. When the USB-Serial bridge is configured by the host, this GPIO is asserted. In bus-powered embedded systems, to meet the USB 2.0 Specification requirements during Unconfigured and Suspend states, this pin can be used as a notification to control the power to the system. Refer to the Configuration Utility User Guide for more details about these options. CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 22 Kit Operation Test Procedure for Suspend and Power Enable Pin. a. Connect the CYUSBS234 DVK board to a PC using USB standard A to micro-B cable. b. Set the PC into sleep mode. c. Check the Suspend pin (J23.4) and Power Enable pin (selected GPIO which comes on external header J23) using a digital multimeter or digital storage oscilloscope. The Suspend pin goes low and Power enable pin goes high during sleep mode. (By default, the invert polarity is disabled. If the invert polarity is enabled, the Suspend pin goes high during sleep mode.) d. Wake up the PC using the Remote wake-up feature described in page 22, or using any other device such as a mouse or keyboard connected to the PC. When the PC becomes active, the Suspend pin goes high and power enable pin goes low. ■ Manufacturer string Default value: Cypress Semiconductor The Manufacturer string can be a value of up to 32 characters. ■ Product string Default value: USB-Serial (Single Channel) The Product string can be a value of up to 32 characters. ■ Serial number string Default value: NULL (No serial number) Select the check box to enter the serial number, which can be a value of up to 32 characters. If you do not require the serial number, deselect the check box. System The Configurable options are: a. VBUS voltage is 3.3 V b. VDDD voltage is less than 2 V c. Enable manufacturing interface d. I/O Level e. I/O Mode f. Program button g. Disconnect button ■ VBUS voltage is 3.3 V Default value: Unchecked This option must be checked if the VBUS pin is supplied with 3.3 V, and unchecked if the VBUS pin is supplied with 5 V. The board is designed only for 5-V VBUS operation. This option must always be unchecked for the board. The CY7C65211 device supports VBUS voltage range from 3.15 V to 5.25 V. ■ VDDD voltage is less than 2 V Default value: Unchecked The board is designed only for 5-V operation. This option must always be unchecked for the board. The CY7C65211 device supports VDDD voltage range from 1.71 V to 5.5 V. ■ Enable manufacturing interface Default value: Checked This option enables an additional vendor class manufacturing mode interface for reprogramming the device. For more information, refer to the Enable Manufacturing Interface section in the Cypress USB-Serial Configuration Utility User Guide. CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 23 Kit Operation ■ I/O level Default value: CMOS You can set the device's GPIO logic levels to either CMOS or LVTTL. ■ I/O Mode Default value: Fast You can set the device's GPIO edge transitions to either fast or slow for EMI considerations. For more information, refer to the GPIO AC Specifications table in the datasheet. ■ Program button After configuring all the device settings, the updated configuration settings must be programmed to the device. To program the device, click the Program button. ■ Disconnect button Click this button to disconnect the DVK from the configuration utility. 4. After configuring the USB and system parameters, click the Program button to save the changed USB parameters. On successful programming, the “Program Succeeded” message appears. Click OK to continue. 5. Click the Disconnect button to disconnect the board from the configuration utility. 6. Press the reset switch SW3 on the board. The controller is reinitialized with the new parameters and the board re-enumerates, as shown in Figure 3-5 on page 18. CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 24 Kit Operation 3.3.3 UART Configuration The CYUSBS234 DVK board is configured for the UART interface by default. The board can act as a USB-UART bridge to transfer and receive data between the device and the PC via terminal communication software, such as Hyperterminal or Tera Term. Follow these steps to view and modify the parameters for the UART configuration: 1. Follow steps 1 to 6 of the section Connecting CYUSBS234 DVK to Cypress USB-Serial Configuration Utility on page 19 to connect the board to the Cypress USB-Serial Configuration Utility. 2. Click the SCB tab. Select UART as the SCB mode from the drop-down menu. Figure 3-11. Configuration Utility SCB Configuration Tab 3. Click the Configure button, as shown in Figure 3-11, to configure the UART parameters. Figure 3-12. UART Configuration parameters CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 25 Kit Operation You can configure the following UART parameters by using the Cypress USB-Serial Configuration Utility: a. Baud Rate b. Type c. Data Width d. Stop Bits e. Parity f. Drop packets on RX error g. Disable CTS and DSR pull-up during suspend ■ Baud Rate Default value: 115200 You can set the baud rate for the UART in an editable drop-down combo box that lists the predefined, standard baud rates. You can also enter a specific baud rate in the combo box. The minimum and maximum baud rates supported by this board are 300 bps and 1 Mbps, respectively. The CY7C65211 device supports 3 Mbps, but the board limits the baud rate to 1 Mbps, due to the limitation of the RS-232 line driver (U5). ■ Type Default value: 6 pin You can set the UART type to: a. 2 pin (RXD and TXD pins) b. 4 pin (RXD, TXD, RTS, and CTS pins) c. 6 pin (RXD, TXD, RTS, CTS, DSR, and DTR pins) ■ Data Width Default value: 8 bits You can set the UART data width to either 7 bits or 8 bits. ■ Stop Bits Default value: 1 bit You can set the number of UART stop bits to either 1 bit or 2 bits. ■ Parity Default value: None You can set the parity for the UART data transfer to either None, Odd, Even, Mark, or Space. ■ Drop packets on RX errors Default value: Unchecked This parameter defines the behavior of the UART when an error is detected in the packet received (RX packet/byte). When this option is selected, the data packet/byte in the RX buffer is discarded. ■ Disable CTS and DSR pull-up during suspend Default value: Checked In an embedded system, this parameter can be checked to reduce system current consumption during Suspend state. This parameter disables CTS and DSR pull-up resistors in Suspend state to meet USB 2.0 Specification current requirements. 4. Click OK to close the Configure UART Settings window and return to the SCB tab. 5. Select CDC as the protocol in the drop-down menu. CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 26 Kit Operation 6. Notification LEDs are set to None, by default. The notification LED pins are brought out on the external GPIO header J23. You can configure any GPIO as a notification LED by clicking the Configure button next to “Notification LED” in the SCB tab and connect an external LED to the assigned GPIO pin on the GPIO header J23. 7. After configuring the UART interface, click the Program button to save the changed SCB settings onto the controller. On successful programming, the “Program Succeeded” message appears. Click OK to continue. 8. Click the Disconnect button to disconnect the board from the configuration utility. 9. Press the reset switch SW3 on the board. The controller is reinitialized with the new parameters and the board re-enumerates, as shown in Figure 3-13. Figure 3-13. CYUSBS234 DVK Board Enumeration as USB-UART Controller in Device Manager 10.The Cypress USB-Serial Configuration Utility is displayed, as shown in Figure 3-7 on page 20. CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 27 Kit Operation 3.3.3.1 Test Procedure for CYUSBS234 DVK Configured as UART 1. To test the functionality of the UART interface, set up the jumpers as listed in Table 3-3 and shown in Figure 3-14 and Figure 3-15. Table 3-2. Jumper Settings Jumper Pins to be Shorted J17 2 and 4 SCB_2 (Pin#21) configured for UART RTS Function J18 1 and 2 SCB_0 (Pin#1) configured for UART RXD J19 2 and 4 SCB_1 (Pin#20) configured for UART DSR J20 2 and 4 SCB_3 (Pin#22) configured for UART CTS J21 2 and 4 SCB_4 (Pin#23) configured for UART TXD J22 1 and 2 SCB_5 (Pin#2) configured for UART DTR J29 1 and 2 VBUS selection Figure 3-14. SCB UART Jumpers 1 SPI 5 3 Pin #21 (SCB_2) GPIO HEADER U S B S E R I A L 1 2 4 UART J17 UART J18 I2C 3 Pin #1 (SCB_0) 1 2 Pin #20 (SCB_1) 3 B R I D G E 1 SPI C O N T R O L L E R 2 GPIO HEADER 5 2 3 Pin #22 (SCB_3) 1 2 Pin #23 (SCB_4) GPIO HEADER 3 1 2 GPIO HEADER 4 UART J19 SPI GPIO HEADER 4 UART J20 I2C GPIO HEADER 4 UART J21 UART J22 SPI 3 Pin #2 (SCB_5) CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 28 Kit Operation Figure 3-15. VBUS Selection Jumper 2. To check the functionality of the UART, you can perform a quick loopback test by interconnecting the DB9 connector pins with the jumper wires as follows: ❐ J15.3-J15.2 (TXD of SCB to RXD of SCB) ❐ J15.4-J15.6 (DTR of SCB to DSR of SCB) ❐ J15.7-J15.8 (RTS of SCB to CTS of SCB) Figure 3-16. Connection for Loopback Test 3. Open an instance of the serial emulation terminal, such as Tera Term, which you can install from the following location: /Cypress/CYUSBS234 DVK/1.0/teraterm CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 29 Kit Operation 4. In the Tera Term: New Connection window, click Serial and select USB Serial Port (COM#), as shown in Figure 3-17. Click OK. Note To change the UART parameters, go to Setup > Serial Port in the Tera Term terminal. Figure 3-17. Tera Term Connection 5. Connecting TXD to RXD enables the data to flow from the UART transmitter to the receiver, which is displayed on the same terminal, as shown in Figure 3-18. This test procedure validates the functioning of the USB-UART bridge. If the local echo option is enabled, then the entered data appears twice on the terminal. Note To enable the local echo option, go to Setup > Terminal. In the “Tera Term: Terminal Setup" window; check the Local echo box. Figure 3-18. Tera Term Application: Loopback Test Output Note This screenshot is captured without enabling Local echo. 3.3.3.2 Throughput Determination Throughput is the average rate of successful data transfer over the UART channel. It is measured in bits/second. A PC application can be used to determine the throughput of an USB-Serial bridge controller. The CY7C65211 device supports 3 Mbps, but the actual reported throughput on a PC applica- CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 30 Kit Operation tion (Tera Term) will be less than 1 Mbps, due to RS-232 line driver limitation, protocol overhead, and PC application latency. Follow these steps to determine the throughput of the USB-Serial bridge controller: 1. In the Tera Term window, go to Setup > Serial Port: a. Enter ‘1000000’ in the Baud rate drop-down combo box. b. Select Hardware in the Flow control drop-down menu. c. Click OK 2. Go to Setup > Terminal > Receive and select CR+LF. Click OK to continue. 3. Go to File menu. Select Send File from the drop-down menu, as shown in Figure 3-19. Figure 3-19. Sending the File 4. Select a file to be sent through USB Serial Port (COM#). After the file is selected, the data transfer starts and the window is displayed, as shown in Figure 3-20. 5. Number of bytes transferred per second determines throughput. The "Tera Term :Send File" window shows effective data throughput in Bytes/sec; multiply this value by 8 to get the throughput in bits/sec. Again, multiply this value by 2 to get the unidirectional throughput. Figure 3-20. Throughput Determination CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 31 Kit Operation 3.3.4 I2C Configuration You can configure the CYUSBS234 DVK board for the I2C serial interface to function as a USB-I2C bridge. The onboard I2C EEPROM (operating in I2C slave mode) can be connected to the USBSerial bridge controller, CY7C65211, to read and write data. The USB-Serial Test Utility can be used to read, write, and verify the contents of EEPROM from the PC. The Test Utility software is available as part of the CYUSBS234 kit installer. Follow these steps to view and modify the parameters for the I2C configuration: 1. Follow steps 1 to 6 in the section Connecting CYUSBS234 DVK to Cypress USB-Serial Configuration Utility on page 19 to connect the board to the Cypress USB-Serial Configuration Utility. 2. Click the SCB tab. Select I2C as the SCB mode from the drop-down menu. Figure 3-21. SCB Configuration Tab 3. Click the Configure button, as shown in Figure 3-21, to configure the I2C settings. Figure 3-22. I2C Configuration Settings CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 32 Kit Operation You can configure the following I2C parameters by using the Cypress USB-Serial Configuration Utility: a. Frequency b. Mode c. Use as wake-up source (Slave mode only) d. Slave Address (Slave mode only) e. Enable clock stretching (Slave mode only) ■ Frequency Default value: 100 kHz You can set the operating frequency of the I2C master/slave from 1 kHz to 400 kHz in the dropdown menu. ■ Mode Default value: Master You can configure the I2C mode to either a master or a slave. To support the slave mode, contact Cypress Technical Support. ■ Slave Address Default value: 2 This option is available only in the I2C slave mode. The I2C slave address can be from 2 to 126 (in decimal) in increments of 2. ■ Enable clock stretching Default value: Unchecked This option is available only in I2C slave mode. You can use this option when there is a mismatch between the master and the slave clock frequency. Both master and slave can operate at the same frequency by enabling clock stretching. ■ Use as wake-up source Default value: Disabled This option is available only in I2C slave mode. USB-Serial bridge controller as I2C slave can be used as remote wake-up source to wake-up the USB host. 4. Click OK to close the Configure I2C Settings window and return to the SCB tab. 5. Select Vendor as the protocol in the drop-down menu. 6. Notification LEDs are set to None, by default for this board. The notification LED pins are brought out on the external GPIO header J23. You can configure any GPIO as a notification LED by clicking the Configure button next to "Notification LED" in the SCB tab and connect an external LED to the assigned GPIO pin on the GPIO header J23. 7. After configuring the I2C interface, click the Program button to save the changed SCB settings. On successful programming, the "Program Succeeded" message appears. Click OK to continue. 8. Click the Disconnect button to disconnect the board from the configuration utility. 9. Press the reset switch SW3 on the board. The controller is reinitialized with the new parameters and the board re-enumerates, as shown in Figure 3-23. CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 33 Kit Operation Figure 3-23. CYUSBS234 DVK Enumeration as USB-Serial Bridge Controller in Device Manager 10.The Cypress USB-Serial Configuration Utility is displayed, as shown in Figure 3-7 on page 20. CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 34 Kit Operation 3.3.4.1 Test Procedure for CYUSBS234 DVK Configured as I2C 1. To test the functionality of the I2C interface, set up the jumpers as listed in Table 3-3 and shown in Figure 3-24 and Figure 3-25. Table 3-3. Jumper Settings Jumper Pins to be Shorted J17 2 and 3 SCB_2 (Pin#21) configured for I2C SCL Function J20 2 and 3 SCB_3 (Pin#22) configured for I2C SDA J29 1 and 2 VBUS selection Figure 3-24. SCB I2C Jumpers Figure 3-25. VBUS Selection CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 35 Kit Operation 2. Run the USB Serial Test Utility from Start > All Programs > Cypress > CYUSBS234 DVK > USBSerialTestUtility. 3. To use the default Cypress PID, change the Product ID to 0004. Note The user has the option to enter custom Vendor ID and Product ID. Figure 3-26. Test Utility (VID and PID Selection) 4. The test utility lists the interfaces available on the board for the I2C interface. Click OK. Figure 3-27. Test Utility (change of PID) CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 36 Kit Operation 5. Enter an EEPROM page address within the range specified in the text box (0x0 to 0xFF) and click the Write data button. The status bar at the bottom of window displays the status of the data. Figure 3-28. Test Utility Data Transfer 6. Click the Read & verify data button. When the written and read back data are the same, the “Data verification successful” message appears. Figure 3-29. Test Utility Data Transfer Verification CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 37 Kit Operation 7. Click OK. The "Data verification successful" message appears at the bottom of the window. Figure 3-30. Test Utility Successful Data Transfer Verification 3.3.5 SPI Configuration You can configure the CYUSBS234 DVK board for the SPI serial interface to function as a USB-SPI bridge. The onboard SPI EEPROM (operating in the SPI slave mode) can be connected to the CY7C65211 USB-Serial bridge controller, to read and write data. The USB-Serial Test Utility provided can be used to read, write and verify data from the PC. The Test Utility software is available as part of the CYUSBS234 kit installer. Follow these steps to view and modify the parameters for the SPI configuration: 1. Follow steps 1 to 6 in the section Connecting CYUSBS234 DVK to Cypress USB-Serial Configuration Utility on page 19 to connect the board to the Cypress USB-Serial Configuration Utility. CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 38 Kit Operation 2. Click the SCB tab. Select SPI as the SCB mode from the drop-down menu. Figure 3-31. Configuration Utility SCB Configuration Tab 3. Click the Configure button, as shown in Figure 3-31, to configure the SPI settings. Figure 3-32. SPI Configuration Settings You can configure the following SPI parameters by using the Cypress USB-Serial Configuration Utility: a. Frequency b. Data width c. SPI mode d. Use as wake-up source (slave mode only) e. Protocol f. Enable select precede (TI Protocol only) CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 39 Kit Operation g. CPHA and CPOL mode (Motorola Protocol only) h. SSN Toggle mode (Motorola Protocol only) i. Bit order ■ Frequency Default Value: 1 MHz You can set the SPI operating frequency from 1 kHz to 3 MHz with increments of 1 Hz. ■ Data width Default Value: 8 bits You can set the SPI data width from 4 bits to 16 bits in the drop-down menu. ■ SPI mode Default value: Master You can configure the SPI mode to either a master or a slave. To support the slave mode, contact Cypress Technical Support. ■ Use as Wake-up source Default value: Disabled This parameter is applicable only when the SPI mode is set to Slave. ■ Protocol Default value: Motorola You can select one of the three SPI protocols: ■ ❐ Motorola ❐ Texas Instruments ❐ National Semiconductors Enable Select Precede Default status: Disabled This parameter is applicable only when the SPI protocol is set to TI. ■ CPHA and CPOL mode Default Value: Both Low The CPHA (Clock Phase) and CPOL (Clock Polarity) parameters are available only when the SPI protocol is set to Motorola. You can set the CPOL and CPHA values to either Low or High from the drop-down menu. ■ SSN Toggle mode Default value: Continuous This option is available only when the Protocol is set to Motorola. You can set the SSN (Slave Select n) toggle mode to either Frame or Continuous. SPI EEPROM on the board supports only “Continuous” SSN Toggle mode. ■ Bit Order Default value: MSB first You can set the bit order to either MSB first or LSB first. Note Refer to the SPI Mode section in the Cypress USB-Serial Configuration Utility User Guide for more information. 4. Click OK to close the Configure SPI Settings window and return to the SCB tab. 5. Select Vendor as the protocol in the drop-down menu. CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 40 Kit Operation 6. Notification LEDs are set to None, by default for this board. The notification LED pins are brought out on the external GPIO header J23. You can configure any GPIO as a notification LED by clicking the Configure button next to "Notification LED" in the SCB tab and connect an external LED to the assigned GPIO pin on the GPIO header J23. 7. After configuring the SPI interface, click the Program button to save the changed SCB settings. On successful programming, the "Program Succeeded" message appears. Click OK to continue. 8. Click the Disconnect button to disconnect the board from the configuration utility. 9. Press the reset switch SW3 on the board. The controller is reinitialized with the new parameters and the board re-enumerates, as shown in Figure 3-33. Figure 3-33. CYUSBS234 DVK Enumerates as USB-Serial Bridge Controller in Device Manager 10.The Cypress USB-Serial Configuration Utility is displayed, as shown in Figure 3-7. CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 41 Kit Operation 3.3.5.1 Test Procedure for CYUSBS234 DVK Configured as SPI 1. To test the functionality of the SPI interface, set up the jumpers as listed in Table 3-4 and shown in Figure 3-34 and Figure 3-35.  Table 3-4. Jumper Settings S.No Jumper Pins to be Shorted 1 J17 2 and 5 SCB_2 (Pin#21) configured for SPI MISO Function 2 J19 2 and 3 SCB_1 (Pin#20) configured for SPI SSEL 3 J20 2 and 5 SCB_3 (Pin#22) configured for SPI MOSI 4 J21 2 and 3 SCB_4 (Pin#23) configured for SPI SCLK 5 J29 1 and 2 VBUS selection Figure 3-34. SCB SPI Jumpers Figure 3-35. VBUS Selection 2. Run the USB Serial Test Utility from Start > All Programs > Cypress > CYUSBS234 DVK > USBSerialTestUtility. 3. To use the default Cypress PID, change the Product ID to 0004. CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 42 Kit Operation Note The user has the option to enter custom Vendor ID and Product ID. Figure 3-36. Test Utility (VID and PID Selection) 4. The test utility lists the interfaces available on the board for the SPI interface. Click OK. Figure 3-37. Test Utility (PID Change) CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 43 Kit Operation 5. Enter an EEPROM Page address within the range specified in the text box (0x0 to 0x3FF) and click the Write data button. The status bar at the bottom of window displays the status of the write data operation. Figure 3-38. Test Utility Data Transfer 6. Click the Read & verify data button. When the data that is written and read back are identical, a data verification successful message appears. Figure 3-39. Test Utility Data Transfer Verification CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 44 Kit Operation 7. Click OK. The “Data Verification successful” message appears at the bottom of the window. Figure 3-40. Test Utility Successful Data Transfer 3.3.6 CapSense Configuration The CY7C65211 USB-Serial bridge controller supports the configurable CapSense functionality, providing best-in-class signal-to-noise ratio (SNR) and water tolerance. This device supports SmartSense™ Auto-Tuning of the CapSense parameters and does not require manual tuning. SmartSense Auto-tuning compensates for printed circuit board (PCB) variations and device process variations. The CYUSBS234 DVK board has one CapSense button to evaluate the CapSense functionality. Follow these steps to view and modify the parameters for the CapSense configuration: 1. Follow steps 1 to 6 in the section Connecting CYUSBS234 DVK to Cypress USB-Serial Configuration Utility on page 19 to connect the board to the Cypress USB-Serial Configuration Utility. 2. Click the CapSense®/BCD/GPIO tab. Click the Configure button next to Enable/Disable CapSense®. CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 45 Kit Operation Figure 3-41. CapSense/BCD/GPIO Configuration Tab 3. To enable the CapSense functionality, check the Enable CapSense option. Set Buttons Needed to 1, because this board supports one CapSense button denoted as B1 that is assigned to GPIO 11. Assign this GPIO to Input Sense GPIO from the drop-down menu adjacent to Button 1, as shown in Figure 3-42. Figure 3-42. CapSense Configuration Editor CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 46 Kit Operation You can configure the following CapSense parameters by using the Cypress USB-Serial Configuration Utility: a. Enable CapSense b. Use as wake-up source c. Debounce d. Scan Rate e. Water Shield f. Output activity LED g. Buttons needed h. Input Sense GPIO i. Activity LED GPIO j. Sensitivity k. Select encoded output GPIO l. Auto Assign (Not applicable to this board) ■ Enable CapSense Check this box to enable the CapSense block in the device. ■ Use as wake-up source Check this box to wake up the USB-Serial bridge controller from low-power mode when the CapSense button is touched. ■ Debounce Default Value: 1 Debounce value defines the number of scan cycles (scan rate x number of buttons) a button press needs to be detected by the device before a button press status is reported. For example, if the debounce value is set to two, the device reports a button press status only when it detects the button press for two continuous scan cycles. Debounce ensures that high-frequency high-amplitude noise does not cause false detection of a pressed button. The debounce value can be set to any value between 1 and 5. By default, the debounce value is set to 1. ■ Scan rate Default value: 1 ms Scan rate is the delay (in ms) between two button scans. For example, if the device has three CapSense buttons and scan rate set to 2 ms, each button will be scanned once every 6 ms. Scan rate can be set to any value between 1 ms and 5 ms. By default, the scan rate is set to 1 ms. ■ Water shield Default value: Disabled You can enable the waterproofing feature by selecting any GPIO from the drop-down menu. When this feature is enabled, water droplets on the CapSense button will not be considered as finger touch. The waterproofing design uses a concept called “shield”, which is a conductor placed around the sensors and is connected to a designated shield pin on the device. The shield must be connected to ground by setting jumper J28 to position 2-3 when not used. In the CYUSBS234 board, GPIO 01 is used for water shield operation and the recommended value of sensitivity is 0.2 pF for waterproofing operation. Set the jumper J28 to position 1-2 and press the reset switch SW3 on the board to test the waterproofing operation. ■ Output activity LED Default value: None CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 47 Kit Operation The output activity LED is an indicator for CapSense button touch. You can configure the LED for no indication by setting it to None; one LED for every button by setting it to Individual; or a common LED for more than one CapSense button. ■ Buttons Needed Default value: 1 This option defines the number of buttons required for a CapSense operation. This device supports five buttons but the board supports one CapSense button. ■ Input Sense GPIO This option assigns the GPIO to a CapSense button. On this board, the CapSense button is assigned to GPIO 11 for button B1. ■ Activity LED GPIO Default value: None This option assigns the GPIO used for the LED indication of the CapSense function. The LED will glow when the assigned CapSense button is touched. On this board, the LED is assigned to GPIO 10. ■ Sensitivity Default value: 0.2 pF This option selects the sensitivity of the CapSense button to detect finger touch. You can set the sensitivity to a value between 0.1 pF to 0.4 pF in increments of 0.1 pF. The recommended value for this board is 0.2 pF. ■ Select encoded output GPIO This option selects the GPIOs that generate a binary-encoded output for an assigned CapSense button. On this board, the encoded output is assigned to GPIO 10 for B1. ■ Auto assign This option automatically assigns the GPIOs from the available free pool of GPIOs. 4. Click OK to close the Configure CapSense® window and return to the CapSense®/BCD/GPIO tab. 5. After configuring CapSense, click the Program button to save the changed CapSense settings. On successful programming, the "Program Succeeded" message appears. Click OK to continue. 6. Click the Disconnect button to disconnect the board from the configuration utility. 7. Press the reset switch SW3 on the board. The controller is reinitialized with the new parameters and the board re-enumerates, as shown in Figure 3-43. Figure 3-43. USB-Serial Bridge Controller Enumeration in Device Manager 8. The Cypress USB-Serial Configuration Utility is displayed, as shown in Figure 3-7. CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 48 Kit Operation 3.3.6.1 Test Procedure for CYUSBS234 DVK Configured for CapSense 1. To test the functionality of the CapSense, set up the jumper as listed in Table 3-5 and shown in Figure 3-44 and Figure 3-45. Table 3-5. Jumper Settings Jumper J28 J29 Pins to be shorted 2 and 3 1 and 2 Function Waterproofing disabled—Shield is connected to GND VBUS Selection Figure 3-44. CapSense Jumper Figure 3-45. VBUS Selection 2. On the board, press the CapSense button B1. The LED D7 glows. 3. To validate CapSense using the Cypress USB-Serial Configuration Utility, follow these steps: ❐ Click the Launch button next to Validate CapSense®. CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 49 Kit Operation Figure 3-46. CapSense Validation ❐ Select the Button Specific Validation view from the drop-down menu and click the Load view button. Figure 3-47. CapSense Button-specific Validation ❐ Select 1 for button B1 from the drop-down menu against the select button. Select the RAW count vs Baseline graph from the drop-down menu. For more information about the options in this window, refer to the Configuration Utility User Guide.pdf. ❐ The CapSense validation window displays a blue line, which indicates the raw counts without finger touch called the “baseline”. During this event, the button status is OFF. CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 50 Kit Operation Figure 3-48. Raw Counts Without Finger Touch ❐ Touch button B1 with a finger. The CapSense validation window displays a red line, which indicates the raw Counts. During this event, the button status is ON. Figure 3-49. CapSense Finger Touch Output CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 51 Kit Operation 3.3.7 Battery Charger Detection (BCD) Configuration The battery charger detection logic in the CY7C65211 device will detect the source of power on the USB port and provides indication over the BCD0 and BCD1 GPIOs. Follow these steps to view and modify the parameters for BCD configuration: 1. Follow steps 1 to 6 in the section Connecting CYUSBS234 DVK to Cypress USB-Serial Configuration Utility on page 19 to connect the board to the Cypress USB-Serial Configuration Utility. 2. Click the CapSense®/BCD/GPIO tab. Click the Configure button next to Battery Charge Detect (BCD) to launch the Configure BCD window. Figure 3-50. CapSense/BCD/GPIO Configuration Tab CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 52 Kit Operation 3. To enable the BCD functionality, check the Enable BCD option. On this board, BCD1 GPIO 10 is shared by both CapSense and BCD. Disable the CapSense feature (see CapSense Configuration on page 45 for details), if it is already enabled to test the BCD feature of the controller. Assign GPIO 09, GPIO 10, and GPIO 08 to BCD0, BCD1, and Bus Detect pins for this board, using the drop-down menu shown in Figure 3-51. Figure 3-51. BCD Configuration Settings Note The dead/no battery condition is not supported by the CY7C65211 USB-Serial bridge controller. Configuring the BCD1 and BCD0 drive mode to High in the BCD mode is not a valid condition for this board. If this condition is enabled, the battery charger IC enters into the Suspend mode. You can configure the following BCD parameters by using the Cypress USB-Serial Configuration Utility: a. Enable BCD b. BCD0 c. BCD1 d. Bus Detect e. BCD Drive mode ■ Enable BCD Check this option to enable the BCD block in the device. ■ BCD0 and BCD1 You can assign GPIOs to BCD0 and BCD1 from the drop-down menu according to the requirements of the battery charging IC (refer to the battery charging IC datasheet for the truth table). ■ Bus Detect The Bus Detect pin is used to detect the presence of 5 V on VBUS. You must assign a GPIO to the Bus Detect pin from the drop-down menu to detect the USB connection. ■ BCD Drive mode The board has a battery charging IC to charge the Li-Ion battery (not included) at various levels, based on the status of BCD0 and BCD1. A truth table must be designed to meet the battery charging current drawn by the battery-charging IC, depending on the source of the USB power. The battery-charging IC, MAX8856, on the board sets the charging current, as provided in truth table in Table 3-6. CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 53 Kit Operation Table 3-6. BCD Drive Mode Truth Table BCD0/EN1# BCD1/EN2# MODE 0 0 100 mA 0 1 500 mA 1 0 750 mA 1 1 Suspend Note Depending on the battery-charging IC that you select, the truth table provided in Table 3-6 will change. You must select a battery-charging IC with two control pins to interface with the USBSerial bridge controller. 4. Click OK to close the Configure BCD window and return to the CapSense®/BCD/GPIO tab. 5. After configuring the BCD, click the Program button to save the changed BCD settings. On successful programming, the "Program Succeeded" message appears. Click OK to continue. 6. Click the Disconnect button to disconnect the board from the configuration utility. 3.3.7.1 Test Procedure for CYUSBS234 DVK Configured for BCD 1. To test the functionality of the BCD, set up the jumpers as listed in Table 3-7 and shown in Figure 3-52 and Figure 3-53. Table 3-7. Jumper Settings Jumper Pins to be Shorted Function J4 1 and 2 Battery charge enabled - BCD0 J7 1 and 2 Bus detect J8 1 and 2 Battery charge enabled - BCD1 J29 1 and 2 VBUS Selection Figure 3-52. BCD Jumpers CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 54 Kit Operation Figure 3-53. VBUS Selection 2. Press the reset switch SW3 on the board. The controller is reinitialized with the new parameters and the board re-enumerates as shown in Figure 3-54. Figure 3-54. USB-Serial Bridge Controller Enumeration in Device Manager 3. The Cypress USB-Serial Configuration Utility is displayed, as shown in Figure 3-7. WARNING The SW2 switch should be in position 2-3 before connecting the battery. Use only the recommended rechargeable Li-ion battery. Check the polarity of the battery connector before connecting to the board. 4. Connect a rechargeable Li-ion battery (not supplied with the board) to the battery connector BH1. This board has been tested with a Tenergy Li-Ion 18650 3.7V 2600 mAh rechargeable battery (MPN: 30011-02). 5. Set SW2 in position 1-2. 6. The battery will charge when its voltage is below the nominal voltage (3.7 V), which is indicated by the LED D5. Note The Li-Ion battery is not provided with the CYUSBS234 DVK board. 7. Set the SW2 switch to position 2-3 and disconnect the battery. CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 55 Kit Operation 3.3.8 CYUSBS234 DVK Restore Default Configuration Settings The CYUSBS234 DVK board features the CY7C65211 USB-Serial bridge controller, which is factory-programmed for USB-UART bridge and CapSense functionalities. You can reconfigure the device using the Cypress USB-Serial Configuration Utility to meet specific requirements that overwrites the factory configuration. To restore the board to the factory settings, follow these steps: 1. Follow steps 1 to 6 in the section Connecting CYUSBS234 DVK to Cypress USB-Serial Configuration Utility on page 19 to connect the board to the Cypress USB-Serial Configuration Utility. 2. Click File > Open Configuration from > Disk, as shown in Figure 3-55. Figure 3-55. Select Configuration Window Note The "Restore Default Settings" option will restore the silicon's default settings, which is different from the board default settings. 3. Select the default configuration file from the following location: \Cypress\CYUSBS234 DVK\1.0\default factory settings\CYUSBS234 USB DVK.cyusb CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 56 Kit Operation Figure 3-56. Select Default Configuration File Window 4. After successfully loading the configuration file, the message “Configuration settings were successfully loaded from the file” appears. Click OK to continue. Figure 3-57. Load Configuration CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 57 Kit Operation 5. Click Program to update the configuration settings. On successful programming, the "Program Succeeded” message appears. Click OK to continue. 6. Click Disconnect to disconnect the board from the configuration utility and press the reset switch SW3 on the board. 7. The Cypress USB-Serial Configuration Utility is displayed as shown in Figure 3-7; the board enumerates as shown in Figure 3-5. CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 58 4. 4.1 Hardware Board Details The CYUSBS234 DVK board consists of the following components: ■ CY7C65211 USB-Serial bridge controller ■ Power-supply system ■ USB connector ■ Serial communication block ❐ SCB jumpers ❐ RS-232 line driver for UART Interface ❐ I2C EEPROM for I2C Interface ❐ SPI EEPROM for SPI Interface ❐ GPIO Header ■ CapSense button ■ Li-Ion battery charger ■ Reset switch ■ LEDs CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 59 Hardware Figure 4-1. CYUSBS234 DVK Board #BUUFSZ $IBSHFS
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+ 60 Hardware 4.2 Theory of Operation This section provides the block-level description of the CYUSBS234 DVK board. Figure 4-2. Hardware Block Diagram RESET DC Power Jack (J1) DC Regulator DP Micro B USB Connector (J2) DM VBUS USB UART LEVEL TRANSLATOR CY7C65211 LI-ION Battery Battery Charger IC BCD SCB B1 CAPSENSE JUMPER SELECTOR I2C SPI DB9 Connector (J15) I2C EEPROM SPI EEPROM The CY7C65211 is a full-speed USB-Serial bridge controller that offers a configurable serial channel for UART/I2C/SPI interface. This device also integrates the industry-leading CapSense technology (for touch-sensitive key switches) and the USB-IF Battery Charging specification ver. 1.2 (to detect the power source on the USB port). This device is a fixed-function controller, which does not require any changes to the firmware on the embedded products, because the parameters of the controller and serial channels can be modified using an easy-to-use Cypress USB-Serial Configuration Utility. The CYUSBS234 DVK board communicates through the USB to configure the CY7C65211 USBSerial bridge controller. The board can function as a USB to UART/I2C/SPI bridge. This board also showcases the CapSense and BCD functionalities. The board has a RS-232 line driver, I2C EEPROM, and SPI EEPROM to demonstrate the USB-UART, USB-I2C, and USB-SPI bridge functionalities respectively. This board has a set of jumpers that must be configured according to the UART/I2C/SPI functionality. For more information about the jumpers, see SCB Jumpers on page 66. The board has a reset switch, which connects to the XRES pin of the CY7C65211 USB-Serial bridge controller and a touch-sensitive button to demonstrate CapSense. This board also has a batterycharging IC to charge the Li-ion battery, which is connected to the battery connector to demonstrate BCD. You can power the board from a USB standard-A to micro-B cable, DC power supply, or battery. This board is designed to work at 5 V. The board has two switches; switch SW1 is used to select either self-powered or bus-powered mode and switch SW2 is used to connect the external Li-ion battery to the battery charging circuit. CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 61 Hardware 4.3 Functional Description This DVK uses the CY7C65211 USB-Serial bridge controller, a full-speed USB controller that enables seamless PC connectivity for peripherals with serial interfaces, such as UART, SPI, and I2C. CY7C65211 also integrates CapSense and BCD-compliant with the USB Battery Charging Specification, Rev. 1.2. It integrates a voltage regulator, an oscillator, and flash memory for storing configuration parameters, offering a cost-effective solution. The CY7C65211 devices supports buspowered and self-powered modes and enables efficient system power management with suspend and remote wake-up signals. It is available in a 24-pin QFN package. For more information, refer to the USB-Serial web page at www.cypress.com/go/usbserial and the USB-Serial datasheet. 4.3.1 Features ■ ■ USB 2.0-certified, Full-Speed (12 Mbps) ❐ Supports communication driver class (CDC), personal health care device class (PHDC), and vendor-specific drivers ❐ BCD compliant with USB Battery Charging Specification, Rev. 1.2 (Peripheral Detect only) ❐ Integrated USB termination resistors Single-channel configurable UART interface ❐ Data rates up to 3 Mbps ❐ 256 bytes for each transmit and receive buffer ❐ Data format: 7 to 8 data bits 1 to 2 stop bits ■ ■ ■ ❐ No parity, even, odd, mark, or space parity ❐ Supports parity, overrun, and framing errors ❐ Supports flow control using Clear To Send (CTS), Request To Send (RTS), Data Terminal Ready (DTR), Data Set Ready (DSR) Single-channel configurable SPI interface ❐ Master/slave up to 3 MHz ❐ Data width: 4 bits to 16 bits ❐ 256 bytes for each transmit and receive buffer ❐ Supports Motorola, TI, and National Semiconductor SPI modes Single-channel configurable I2C interface ❐ Master/slave up to 400 kHz ❐ 256 bytes each transmit and receive buffer ❐ Supports multi-master I2C CapSense ❐ SmartSense Auto-tuning enabled CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 62 Hardware 4.3.2 Power-Supply System The power-supply system on this board is designed to be powered-up from one of the following input sources: ■ External 5-V DC power supply (Self-powered operation) ■ Power from USB bus (Bus-powered operation) ■ Battery power supply The USB-Serial bridge controller on this board is powered by 3.3 V. The onboard Low Drop Out regulator provides the required 3.3 V, with input from one of the above sources. ■ ■ ■ The board is powered by 5-V DC power supply when: ❐ 5-V DC power supply is plugged in DC power jack (J1) ❐ SW1 is set to position 1-2 ❐ SW2 can be set to any position The board is powered by USB power supply when: ❐ USB standard-A to micro-B cable is plugged in micro-B connector(J2) ❐ SW1 is set to position 2-3 ❐ SW2 can be set to any position The board is powered from the battery power supply when: ❐ Li-ion rechargeable battery is connected in BH1 connector. ❐ SW2 is set to position 1-2 ❐ SW1 is set to position 2-3 VBUS Battery Charger L3 IC DC Power Jack Switch (SW1) USB Figure 4-3. Power Supply Block Diagram Switch (SW2) LDO MAX3245 3.3V CY7C65211 I2C EEPROM D1 SPI EEPROM CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 63 Hardware 4.3.3 LEDs The CYUSBS234 DVK board has six LEDs. D2 and D4 LEDs indicate the power status. The D7 LED indicates CapSense finger touch on button B1, the D5 LED indicates battery charging operation, and D8 and D10 LEDs indicate the activity on the TXD and RXD lines of the UART. Figure 4-4. LED D2 (5-V Power Supply Status) Figure 4-5. LED D4 (3.3-V Power Supply Status) Figure 4-6. LED D5 (Battery Charging Indication) Figure 4-7. LED D7 (CapSense Touch Indication) CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 64 Hardware Figure 4-8. LEDs D8 and D10 (Tx and Rx Activity Indication) 4.3.4 USB Connector A USB standard micro-B connector is used on the board. The shield of this USB connector is connected to the ground and two inductors (L3 and L4) are placed on VBUS and GND pins to reduce the noise from power supply lines. ESD protection is provided on the D+, D–, and VBUS lines. Figure 4-9. USB Connector CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 65 Hardware 4.3.5 Serial Communication Block (SCB) The CY7C65211 USB-Serial bridge controller integrates an SCB block that can be configured for UART, I2C or SPI interfaces. The board incorporates an RS-232 line driver (U5) and a DB-9 connector (J15) to evaluate the UART functionality. EEPROM (U7) and EEPROM (U8) are used to evaluate the I2C and SPI functionalities on the CYUSBS234 DVK respectively. As an option, these onboard devices can be disconnected (using J17-J22) and the serial interface signals can be made available on header J23 for external connectivity. 4.3.5.1 SCB Jumpers This board has six SCB jumpers: J17, J18, J19, J20, J21, and J22.These jumpers must be configured for USB to UART/I2C/SPI operation. These jumpers are grouped as 3/4/5 pins configurations. Table 4-1 provides the jumper configuration details. Table 4-1. Jumper Configuration for SCB(UART/I2C/SPI/GPIO) Functionality J17 UART 2-4 I2C 2-3 SPI 2-5 GPIO Header 2-1 J18 2-1 J19 2-4 J20 2-4 J21 2-4 J22 2-1 2-3 2-3 2-3 2-5 2-3 2-1 2-1 2-1 CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 2-3 66 Hardware Figure 4-10. SCB Jumpers 1 SPI 5 U S B S E R I A L 1 4 UART J17 UART J18 I2C 2 3 Pin #1 (SCB_0) 1 GPIO HEADER 2 Pin #20 (SCB_1) 1 SPI 4 5 2 1 4 GPIO HEADER J20 GPIO HEADER 3 1 UART I2C 2 Pin #23 (SCB_4) J19 GPIO HEADER 3 Pin #22 (SCB_3) UART SPI 3 B R I D G E C O N T R O L L E R 2 3 Pin #21 (SCB_2) GPIO HEADER GPIO HEADER 2 4 UART J21 UART J22 SPI 3 Pin #2 (SCB_5) 4.3.5.2 RS-232 Interface This board has a RS-232 line driver and a DB9 connector for RS-232 interface, with a maximum baud rate of 1 Mbps (limited by the RS-232 line driver). The board includes two LED indicators: D10 for RXD and D8 for TXD activity. CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 67 Hardware Figure 4-11. RS-232 Interface CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 68 Hardware 4.3.5.3 I2C Interface The CY7C65211 USB-Serial bridge controller's SCB pins can be configured for I2C.These pins are brought out on jumpers J17 and J20 to provide I2C interface. The board has a dedicated I2C slave EEPROM to evaluate the I2C interface. The CY7C65211 USB-Serial bridge controller is configured as an I2C master. The I2C pins (SCL and SDA) can be brought out on the external header J23 by putting the jumper on position 1-2 of J17 and J20. Figure 4-12. I2C Interface 4.3.5.4 SPI Interface The CY7C65211 USB-Serial bridge controller's SCB pins can be configured for SPI.These pins are brought out on jumpers J17, J19, J20, and J21 to provide a SPI interface. The board has a dedicated SPI slave EEPROM to evaluate the SPI interface. The CY7C65211 USB-Serial bridge controller is configured as a SPI master. The SPI pins (SSEL, MISO, MOSI, and SCLK) can be brought out on the external header J23 by putting the jumper on position 1-2 of J17, J19, J20, and J21. Figure 4-13. SPI Interface CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 69 Hardware 4.3.5.5 GPIO Header The CY7C65211 USB-Serial bridge controller's SCB pins can be configured as GPIO. These pins are brought out on external header J23. Seven pins on this header (J23.1, J23.2, J23.3, J23.5, J23.7, J23.8, and J23.9) can be used as I/O pins and the two pins J23.4 and J23.6 have fixed functions for "Suspend" and "Wakeup". See USB Configuration on page 21 for more details on Suspend and Wakeup. J23.10 on the GPIO header is the GND pin. Figure 4-14. GPIO Header Table 4-2. GPIO Headers CY7C65211 Pin 4.3.6 Default Configuration UART Configuration 1 SCB_0 RXD 20 SCB_1 DSR# SPI Configuration I2C Configuration External Configuration GPIO_6 SSEL_OUT GPIO_2 21 SCB_2 RTS# MISO_IN SCL_OUT GPIO_3 22 SCB_3 CTS# MOSI_OUT SDA GPIO_4 23 SCB_4 TXD SCLK_OUT 2 SCB_5 DTR# GPIO_5 GPIO_7 CapSense Button The board has one CapSense touch button B1, which is connected to GPIO_11 and a Cmod (modulation) capacitor connected to pin GPIO_0. This board hardware supports the waterproofing feature of CapSense. When the waterproofing feature is enabled, the water droplets on the sensor will not be sensed. This helps to prevent any accidental sensing of the button due to water droplets. Waterproofing feature enables a shield electrode to compensate for the water drops influence on the sensor at the hardware level. This electrode is located around the sensing electrodes. When water film is present on the device overlay surface, the coupling between the shield and sensing electrodes is increased. The shield electrode allows to reduce the influence of parasitic capacitance, which gives more dynamic range for processing sense capacitance changes. This shield must be connected to a designated shield pin on the device to function or must be connected to the ground when not used. On the board, the shield can be connected to the designated shield pin (GPIO_1) by setting jumper J28 (position 1-2) and can be connected to ground by setting jumper J28 (position 23). Refer to the CapSense Design Guide for further details related to CapSense. CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 70 Hardware Figure 4-15. CapSense Schematic 4.3.7 Battery Charger Detection The CY7C65211 USB-Serial bridge controller integrates battery charging detection, which is compliant with the USB-IF Battery Charging Specification, Rev 1.2. This device detects the source of power on the USB port and provides voltage indication (logic high or logic low) over BCD0 and BCD1 pins to select the different battery charging modes. The BCD0 and BCD1 pins are connected to EN1# and EN2# of the battery charging IC MAX8856. Depending on the BCD0 and BCD1 logic, the different charging modes are selected, as given in Table 4-3. The board is designed with a Li- ion battery charger IC (MAX8856) that has two logic inputs (EN1#, EN2#) to control the amount of current drawn from the USB source to charge the battery. For more details about the battery charger operation, refer to the chip (MAX8856) datasheet. Table 4-3 shows the amount of current drawn in different modes by the battery charging IC. Table 4-3. MAX 8856 (Battery Charging IC) BCD Drive Modes EN1# EN2# MODE 0 0 100 mA 0 1 500 mA 1 0 750 mA 1 1 Suspend CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 71 Hardware Figure 4-16. Battery Charger Circuit 4.3.8 Reset Switch The reset switch is connected to the XRES pin of the CY7C65211 USB-Serial bridge controller and is used to reset the device. A reset is required when a new set of configuration parameters are programmed. CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 72 Hardware Figure 4-17. Reset Schematic CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 73 5. 5.1 Additional Information Using USB-Serial on a Mac OS Note The CYUSBS234 DVK board should be configured for USB to UART, I2C, or SPI on Windows OS before using on Mac OS. 5.1.1 Using CYUSBS234 DVK in Communications Device Class (CDC) Mode The CY7C65211 USB-Serial bridge controller automatically binds to the AppleUSBCDC driver, which is the CDC class driver in Mac OS X. Follow these steps to use the CDC mode for Cypress USB-Serial UART on a Mac OS: 1. Connect the CYUSBS234 DVK board to Mac. The Mac CDC class driver (AppleUSBCDC) automatically binds to the device. After the driver successfully binds, a device node is created as / dev/tty.usbmodem. 2. Install a standard terminal emulator, such as SerialTools to test the UART functionality of the device. SerialTools is available in the Apple App Store. 3. Open the SerialTools application. In the Serial port option, select the Cypress USB-Serial UART device node created in step 1. Figure 5-1. Connecting USB-Serial in SerialTools 4. Configure the UART settings, such as baud rate, stop bits, data width, and parity. 5. For simple loopback tests, short the RXD and TXD pins on the DVK. CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 74 Additional Information 6. Click Connect to start communication with the device. 7. Type Cypress in the text field. Because the local echo is always enabled in the SerialTools application, the entered characters will be displayed twice. Figure 5-2. SerialTools Application: Loopback Test Output 5.1.2 Using the CYUSBS234 DVK board in Vendor Mode Follow these steps to use the CYUSBS234 DVK board in the Vendor mode on a Mac OS. 1. Download the latest USB-Serial SDK for Mac from www.cypress.com/go/usbserial. 2. Follow the steps listed in the README file provided in the software development kit (SDK) to compile and install the library. 3. When the library is installed, execute the test utility (CyUSBSerialTestUtility) to verify the communication with the CYUSBS234 DVK board. 4. For a detailed API description, refer to CyUSBSerial API Documentation.pdf in the /common/doc folder of the SDK. CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 75 CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** A B C D 5 PJ-102AH J1 1 3 2 5V DC INPUT TP15 C2 10UF_16V + C3 TP18 R48 1 VSYS 0R 3 1 2 2 SPDT_SWITCH 1101M2S3CQE2 C&K Components 3 1 SW1 C4 100uF_10V + EXTERNAL DC - 5V 2 3 4 ADJ/NC VOUT NCP694H33HT1G NCP694H33HT1G ON Semiconductor GND CE VIN U2 1 5 C8 0R 4.7UF_16V R50 2.2UF_NL C43 C44 1.Label all the Jumpers with prompt net names. 1 4 3 4.Add Four #4-40 mounting holes at board corner. 3.Power Trace minimum width should be 40 mil. 2.Provide 3X spacing between digital traces. + C6 1 TP19 + C7 C45 TP10 LTST-C190KG D4 R2 68R 330uF_10V_NL 100uF_10V_NL 330uF_10V + C5 VIN 0.1UF_NL 0.01UF_NL V3p3 GENERAL LAYOUT NOTE 0R TP9 3.3V@1A LDO REGULATOR + V5p0_JACK SPDT SWITCH TP17 1 22uF_25V R49 + 4.7UF_16V C9 VIN 330uF_25V SK44BL-TP C1 D1 3 2 Date: Size B Title 1 Friday, May 24, 2013 POWER SUPPLIES Document Number 630-60114-01 1 Sheet CYUSBS234 USB TO SERIAL DVK BOARD 2 CYPRESS SEMICONDUCTOR © 2013 Place the GND test points across 4 corners of the board. TP14 TP13 TP12 TP11 GND TEST POINTS LTST-C190KG D2 180R R1 2 1 4 1 5 1 of 6 Rev B A B C D A.1 1 A. Appendix Schematic The schematic for CYUSBS234 DVK board is available at http://www.cypress.com/go/CYUSBS234. Figure A-1. Schematic 76 CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** A B C D7 19.6K_1% R11 10K_1% R10 R13 1 2 2 2PIN JUMPER J4 LAYOUT NOTES 270R 2PIN JUMPER J8 1 2 2PIN JUMPER J7 4 {6} SCB_5 {6} SCB_4 {6} SCB_3 {6} SCB_2 {6} SCB_1 {6} SCB_0 5 4 5. Hatching Details: Typical hatching for the ground fill is 25 percent on the top layer (7 mil line, 45 mil spacing) and 17 percent on the bottom layer (7 mil line, 70 mil spacing). 4. Capsense button to ground spacing should be 20mil. 3. Hatching around capsense button is needed. 2. No plane or trace under capsense button in any layer. BCD1_GPIO_10 2 23 22 21 20 1 6 5 18 0.01UF_16V C17 24 4 CMOD 0.1UF_16V C15 VDDD 1UF_16V C10 12 BCD0_GPIO_9 2.2nF C41 2.2UF_16V C14 3 CY7C65211-24LTXI SCB_5_GPIO_7 SCB_4_GPIO_5 SCB_3_GPIO_4 SCB_2_GPIO_3 SCB_1_GPIO_2 SCB_0_GPIO_6 GPIO_10 GPIO_9 GPIO_8 GPIO_0 VDDD VCCD U1 3 XRES WAKEUP SUSPEND GPIO_1 GPIO_11 USBDM USBDP VBUS VSSD1 VSSD2 VSSD3 VSSA EPAD 14 9 8 19 7 11 10 15 3 13 16 17 25 C47 1 WAKEUP {6} 3 1 2 TP6 SUSPEND {6} 10pF_NL B1 100K_NL R64 Sensor 2 R7 Shield 0.1UF_16V C46 J28 2 SHIELD 0R 3 1 B1 B2 A1 A2 SW3 EVQ-PAC07K 2 J29 VSYS VBUS 1 R63 0R Friday, May 24, 2013 1 Sheet 3 CYUSBS234 DEVICE CONNECTION Document Number 630-60114-01 CYUSBS234 USB TO SERIAL DVK BOARD CYPRESS SEMICONDUCTOR © 2013 PART_NUMBER = EVQ-PAC07K C26 Manufacturer = Panasonic 0.01UF_16V R12 100R Date: Size B Title V3p3 CAPSENSE BUTTON 10MM ROUND CAPSENSE 1 WATERSHIELD 560R RESET# R14 USB_DM {4} USB_DP {4} CYUSBS234 DEVICE CONNECTION BUSDETECT_GPIO_8 10UF_16V + C16 1. Capsense pin should be 10mm dia. COUT0 LTST-C190KG {4} BCD1_EN {4} BCD0_EN 1 L2 BLM21PG221SN1D BCD0_GPIO_9 BCD1_GPIO_10 {6} VBUS V3p3 BUSDETECT_GPIO_8 D 5 of 6 Rev B A B C D Figure A-2. Schematic 77 CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** A B C D DP VBUS DM 4 5 6 3 1 2 D+ D- USBLC6-2 USBLC6-2SC6 ST Micro. IO2A G + 4.7uF / 25V 5 4 4. VBUS trace width should be minimum 20mil. 3. Add ground vias near the USB differential vias for Z-Axis reference. 2. USB 90 ohm differential pairs should be routed with ground reference. 1. Place U4 closer to J2. 3 2 C18 IO1A U4 VBUS 1 BLM21PG221SN1D L4 BLM21PG221SN1D USB_VBUS L3 1 LAYOUT NOTES USB - MICRO B DX4R005J91R1500 JAE Electronics GND SHIELD1 SHIELD2 J2 USB MICRO-B TP16 USB TO UART 4 IO2B V IO1B 4 5 6 0.1UF_16V C25 R66 R67 0R 0R USB_DM {3} USB_DP {3} R5 100K C22 TP2 68R 4.7UF_16V 0.1UF_16V R3 V3p3 C19 VBUS 23.58K R8 D5 C20 TP1 R65 SETI LTST-C190KG 0.1UF_16V 0R 15 11 8 12 7 6 4 3 MAX8856ETD+T MAX8856ETD+T Maxim Integrated EPAD GND GATE SETI POK CHG VL IN U3 THM BAT2 BAT1 SYS2 SYS1 EN1 EN2 R47 0R_NL 5 2 1 14 13 10 R29 V3p3 9 R33 V3p3 R46 R26 91K 0R 3 2 Date: Size B Title 1 30011-02 BH1 0530470210 Friday, May 24, 2013 PMIC, MICRO USB CKT 1 Sheet CYUSBS234 USB TO SERIAL DVK BOARD Document Number 630-60114-01 4 of 6 Rev B Tenergy Li-Ion 18650 3.7V 2600mAh Rechargeable Battery w/ PCB & Molex Connector CYPRESS SEMICONDUCTOR © 2013 2.Place NTC Thermistor R25 in close proximity to Battery to monitor the Battery Temperature D6 LTST-C190KG J3 2PIN JUMPER 180R R9 VBAT BATTERY CIRCUIT 3 SPDT_SWITCH Low ESR 22uF 2 SW2 C42 4.7uF / 25V_NL + VSYS 1 Battery part no: 22uF V3p3 + + C24 VBAT C21 4.7uF / 25V 0R 4.7K BCD0_EN {3} 4.7K BCD1_EN {3} + C23 0R R25 47K_1% R52 TP3 R51 R54 4.7K_NL R53 4.7K_NL PMIC CIRCUIT 2 1.Load the resistor R46 by default, if temperature sensing is not required remove R46 and load R47. NOTE: 3 1 2 1 2 5 A B C D Figure A-3. Schematic 78 A B C D {6} TxD_OUT D10 {6} RxD_OUT LTST-C193KGKT-5A V3p3 D8 R16 5 R18 LTST-C193KGKT-5A V3p3 C27 TP7 TP40_SMD {6} CTS#_OUT {6} DSR#_OUT 270R {6} RTS#_OUT {6} DTR#_OUT 270R 0.1UF_16V C33 0.1UF_16V C29 0.1UF_16V 21 15 16 17 18 19 20 12 13 14 2 1 24 28 INVALID R5OUT R4OUT R3OUT R2OUT R1OUT R2OUTB T3IN T2IN T1IN C2- C2+ C1- C1+ U5 V3p3 26 VCC 22 V- V+ 4 23 8 7 6 5 4 11 10 9 3 27 C30 0.1UF_16V C34 0.1UF_16V 4 MAX3245EEUI+ FORCEON R5IN R4IN R3IN R2IN R1IN T3OUT T2OUT T1OUT FORCEOFF CTS# {5} DSR# {5} RxD {5} RTS# {5} DTR# {5} TxD {5} 4.7K_NL R56 4.7K R55 V3p3 4.7K_NL R58 4.7K R57 V3p3 {5} DTR# {5} CTS# {5} TxD {5} RTS# {5} RxD {5} DSR# 11 5 9 4 8 3 7 2 6 1 3 DB9M 182-009-113R531 Norcomp Inc G1 RI DTR CTS TX RTS RX DSR DCD J15 3 R21 {6} SCLK_IN_OUT {6} MOSI_IN_OUT {6} MISO_IN_OUT {6} SSEL_IN_OUT V3p3 V3p3 A2 A1 A0 U7 24LC128 7 6 24LC128-I/SM WP SCL SDA 5 0.1UF_16V C38 R44 2.2K 2.2K 0R R23 R24 V3p3 SCL_IN_OUT {6} SDA {6} 2 10K 6 5 2 1 HOLD W 7 3 0.1UF_16V R20 10K R22 10K V3p3 1 Friday, May 24, 2013 UART,EEPROM FOR SCB Document Number 630-60114-01 1 Sheet CYUSBS234 USB TO SERIAL DVK BOARD 5 CYPRESS SEMICONDUCTOR © 2013 M95M02-DRMN6TP M95M02-DRMN6TP STMicroelectronics Date: Size B Title C D Q S U8 C37 V3p3 SPI EEPROM FOR SCB 3 2 1 V3p3 I2C EEPROM FOR SCB 2 8 VCC GND 4 UART PORT FOR SCB GND 25 8 VCC VSS G3 G2 10 CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 4 5 of 6 Rev B A B C D Figure A-4. Schematic 79 CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** A B C D 5 5 J20 5 4 3 1 3 MOSI_IN_OUT {5} CTS#_OUT {5} SDA {5} SCB_3_GPIO_4 SCB_0_GPIO_6 RxD_OUT {5} SCB_1 SCB_2 SCB_3 SCB_4 SCB_5 SCB_1 SCB_2 SCB_3 SCB_4 SCB_5 20 21 22 23 2 NOTE: SCB_0 SCB_0 CONFIGURATION DEFAULT 5PIN JUMPER NAME 2 2 1 1 PIN 24-QFN {3} SCB_3 {3} SCB_0 J18 SPI SCLK_IN_OUT {5} TxD_OUT {5} SCB_4_GPIO_5 SSEL_IN_OUT {5} DSR#_OUT {5} SCB_1_GPIO_2 SCLK_OUT MOSI_OUT MISO_IN SSEL_OUT 2 SDA SCL_OUT 4 1 5 2 4 3 3 J17 5 4 3 1 2 SCB_5_GPIO_7 DTR#_OUT {5} EXTERNAL HEADER 3 1 MISO_IN_OUT {5} RTS#_OUT {5} SCL_IN_OUT {5} SCB_2_GPIO_3 GPIO_7 GPIO_5 GPIO_4 GPIO_3 GPIO_2 GPIO_6 CONFIGURATION4 J22 5PIN JUMPER CONFIGURATION3 I2C {3} SCB_5 {3} SCB_2 3 The Pins of 5 pin Header J17 and J20 should be placed as shown in the below figure DTR# TxD CTS# RTS# DSR# RxD 3 4 1 3 4 1 CONFIGURATION2 4PIN JUMPER 2 J21 4PIN JUMPER 2 CONFIGURATION1 UART {3} SCB_4 {3} SCB_1 J19 JUMPER CONFIG FOR SCB 4 2 2 Date: Size B Title 9 7 5 3 1 10 8 6 4 2 HEADER 5X2 J23 P1.1 BCD1_GPIO_10 {3} WAKEUP {3} SUSPEND {3} SCB_5_GPIO_7 Friday, May 24, 2013 1 Sheet GPIO HDR,JUMPER FOR SCB Document Number 630-60114-01 CYUSBS234 USB TO SERIAL DVK BOARD 6 CYPRESS SEMICONDUCTOR © 2013 SCB_4_GPIO_5 P0.5 SCB_2_GPIO_3 P0.3 SCB_3_GPIO_4 SCB_1_GPIO_2 P0.2 P0.4 SCB_0_GPIO_6 P1.0 GPIO HEADER 1 of 6 P1.4 Rev B A B C D Figure A-5. Schematic 80 A.2 CY7C65211 USB-Serial Design Guidelines This section explains the design guidelines for using the CY7C65211 USB-Serial bridge controller: ■ The CY7C65211 silicon can operate from 1.71 V to 5.5 V. ■ Short the VCCD pin to the VDDD pin when the operating voltage (VDDD) is from 1.71 V to 1.89 V. ■ Connect a 1-uF decoupling capacitor between the VCCD pin and ground when the operating voltage is greater than 2 V. ■ Place decoupling capacitors close to VDDD pins. In this board, C14, C15, C16, and C17 are the decoupling capacitors that are placed close to the VDDD pins. C10 is a 1-uF capacitor to be placed close to the VCCD pin, as shown in Figure A-6. Figure A-6. Decaps and CMOD Capacitor Placement ■ The CY7C65211 USB-Serial bridge controller has an exposed pad (EPad) in the bottom that must be connected to the GND pad on the PCB. ■ An active low 1-µs pulse width is required to reset the CY7C65211 USB-Serial bridge controller. ■ Do not provide pull-up resistors on SPI pins, except SSEL. ■ Provide pull-up resistors on I2C pins. ■ USB traces (DP/DM) should be routed with 90-Ohms impedance. ■ USB differential traces (DP/DM) should be routed with solid reference plane. ■ ESD protection device must be placed closer to the USB connector. ■ In the BCD interface, the bus detect signal should be connected with a resistor divider network from VBUS. Refer to the Application Examples section in the CY7C65211 datasheet for recommended values. ■ No plane or traces should be present under CapSense buttons in any layer. ■ The CapSense pad should have 10- mm diameter. ■ The CapSense button-to-ground spacing should be 20 mils. ■ The typical hatching for the ground fill is 25% on the top layer (7-mil trace, 45-mil spacing) and 17% on the bottom layer (7-mil trace, 70-mil spacing). ■ Ensure that the solder mask is enabled for CapSense pads. ■ The CapSense trace and the water shield trace should be 7 mils in thickness. CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 81 ■ Route the CapSense trace in the gnd layer (inner layer) of the bottom layer, so that it is isolated from the external noise. On the top layer, because the traces are exposed, bringing a hand near the trace causes false triggers. ■ The hatched GND should be extended along the full length of the CapSense trace routing. ■ The CapSense trace should have a 560-ohms resistor that must be placed close to the silicon. ■ The CMOD capacitor (2.2 nF) must be placed close to the silicon pin. ■ The CMOD capacitor should be of Chip-On-Glass (COG) type. ■ Make sure there is no test point or headers on the CapSense and CMOD traces. ■ The gap between the ground and the sensor pad should be equal to the overlay thickness, but not less than 0.5 mm and not more than 2 mm. ■ There must not be any solid ground around or beneath the sensor pad and sensor traces. Solid ground increases the sensor capacitance. ■ The CapSense button shape should be a solid round pattern or a rectangle with curved edges. ■ The button-to-button spacing must be 8 mm. ■ The via hole size on the CapSense trace must be 10 mil. A maximum of 2 vias are allowed on the CapSense trace. For more information, refer to Getting Started with CapSense at the Cypress website. The following figures show the typical CapSense interface circuit and layout: Figure A-7. CapSense Interface Circuit Figure A-8. CapSense Layout - Top Layer CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 82 Figure A-9. CapSense Layout - GND Layer Figure A-10. CapSense Layout - Power Layer Figure A-11. CapSense Layout - Bottom Layer CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 83 A.3 Troubleshooting Guide  Table A-1. Troubleshooting Guide Problem The CYUSBS234 DVK board does not power up in BUS powered mode. Power ON LED, D2 (5V) and D4 (3.3V) do not light up. Possible cause Possible solution USB Cable is not connected to PC. Connect the USB cable. PC does not power up the USB port. Connect on a different USB port. Use different USB cable. Or use the Self power mode and connect 5-V DC power supply provided with the kit. Check the voltage on the D2 LED (TP17) is 5 V Power ON LED is faulty. and the voltage on D4 LED (TP10) is 3.3 V Check the voltage output from power supply The CYUSBS234 DVK adapter. It should be approximately board does not power up in Power adapter is faulty. 5-V DC. If the power adapter is faulty, use the Self power mode. Power ON USB to power the board. LED (D2 - 5V, D4 - 3.3V) Check the voltage on the D2 LED (TP17) is 5 V does not light up. Power ON LED is faulty. and the voltage on D4 LED (TP10) is 3.3 V Run setup.exe in following location: a.\Cypress\CYUSB USB driver is not bound to S234 DVK\1.0\driver\cyusb3 the DVK. The CYUSBS234 DVK b.\Cypress\CYUSB board does not enumerate. S24 DVK\1.0\driver\cyusbserial Set the jumper J29 to 1-2. Set J7 jumper if the Jumper J29 is not fitted. device is configured for BCD. One of these jumpers (J17, Set the jumpers as mentioned in the section J18, J19, J20, J21 and J22) 3.3.3.1 Test Procedure for CYUSBS234 DVK is not set correctly for UART Configured as UART on page 28 of this kit configuration. guide. SCB configured as UART Load CYUSBS234 USB DVK.cyusb, does not work. supplied with the kit. Refer to the section 3.3.8 UART is not properly configCYUSBS234 DVK Restore Default Configuraured. tion Settings on page 56. Press the RESET switch to update the new configuration. One of these jumpers (J17 Set the jumpers as mentioned in the section and J20) is not set correctly 3.3.4.1 Test Procedure for CYUSBS234 DVK for I2C configuration. Configured as I2C on page 35 of this kit guide. SCB configured as I2C does Load cyusbs234 i2c config.cyusb supplied with not work. the kit. Refer to the section 3.3.8 CYUSBS234 I2C is not properly configured DVK Restore Default Configuration Settings on page 56. Press the RESET switch to update the new configuration. SCB configured as SPI does not work. USB cable is faulty One of these jumpers (J17, J19, J20, and J21) is not set correctly for SPI configuration. Set the jumpers as mentioned in the section 3.3.5.1 Test Procedure for CYUSBS234 DVK Configured as SPI on page 42 of this kit guide. SPI is not properly configured. Load CYUSBS234 SPI_BCD.cyusb supplied with the kit. Refer to the section 3.3.8 CYUSBS234 DVK Restore Default Configuration Settings on page 56. Press the RESET switch to update the new configuration. CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 84 Table A-1. Troubleshooting Guide (continued) Problem Possible cause Possible solution Jumper J28 is not set correctly for CapSense configuration. Set the jumper J28 in 2-3 for normal CapSense operation, and in 1-2 for water proofing operation. CapSense is not properly configured. Load CYUSBS234 USB DVK.cyusb, supplied with the kit. Refer to section 3.3.8 CYUSBS234 DVK Restore Default Configuration Settings on page 56. Press the RESET switch to update the new configuration. One of these jumpers (J4, J7, and J8) is not set correctly for BCD configuration. Position of the SW2 is not correct. Set the jumpers as mentioned in section 3.3.6.1 Test Procedure for CYUSBS234 DVK Configured for CapSense on page 49. Set SW2 to position 2-3. Battery is dead. Replace the battery. CapSense button does not work. Battery charging does not work. Test utility does not work. (Test utility hangs after write data operation) Load CYUSBS234 SPI_BCD.cyusb supplied with the kit. Refer to section 3.3.8 CYUSBS234 BCD is not configured corDVK Restore Default Configuration Settings on rectly. page 56. Press the RESET switch to update the new configuration. Set the jumpers as mentioned in “Test Procedure for CYUSBS234 DVK Configured as SPI” SPI or I2C configuration on page 42 and “Test Procedure for jumpers are not set correctly. CYUSBS234 DVK Configured as I2C” on page 35. CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 85 A.4 Bill of Materials (BoM) Table A-2. Bill of Materials Item Qty 1 1 2 1 Reference 600-60114-01 REV** BH1 Description CONN HEADER 2POS 1.25MM VERT TIN Manufacturer Mfr Part Number Cypress Semiconduc600-60114-01 REV** tor Molex Inc 0530470210 3 1 C1 CAP ALUM 330UF 25V 20% SMD Panasonic 4 1 C2 CAP TANT 22UF 25V 20% 2917 Kemet T496X226M025AT 5 2 C3,C16 CAP TANT 10UF 16V 20% 1206 AVX Corporation TAJA106M016RNJ 6 1 C4 CAP TANT 100UF 10V 20% 1210 AVX Corporation TAJB107M010RNJ 7 1 C7 CAP TANT 330UF 10V 10% 2917 AVX Corporation TAJD337K010RNJ 8 3 C8,C9,C19 CAP CER 4.7UF 16V 10% X5R 0603 Taiyo Yuden EMK107ABJ475KA-T 9 1 C10 CAP CER 1UF 16V 20% X5R 0402 TDK Corporation C1005X5R1C105M 10 1 TDK Corporation C1608X5R1C225K/0.80 11 12 Yageo CC0402KRX7R7BB104 PCB, CYUSBS234 USB-Serial Board EEE-1EA331UP 12 2 C14 CAP CER 2.2UF 16V 10% X5R 0603 C15,C20,C22,C 25,C27,C29,C3 CAP CER 0.1UF 16V 10% X7R 0402 0,C33,C34,C37 ,C38,C46 C17,C26 CAP CER 10000PF 16V 10% X7R 0402 Kemet C0402C103K4RACTU 13 2 C18,C21 CAP TANT 4.7UF 25V 20% 1206 Kemet T491A475M025AT 14 2 C23,C24 CAP CER 22UF 10V 10% X7R 1206 15 1 C41 CAP CER 2200PF 50V 5% NP0 0603 16 1 Murata GRM31CR71A226KE15L Murata Electronics GRM1885C1H222JA01D North America Micro Commercial Co SK44BL-TP 17 5 18 2 D1 DIODE SCHOTTKY 4A 40V SMB D2,D4,D5,D6,D LED GREEN CLEAR 0603 SMD 7 D8,D10 LED GREEN RECT CLEAR 0603 19 1 J1 CONN PWR JACK 2.1X5.5MM HIGH CUR CUI Inc PJ-102AH 20 1 J2 CONN RCPT 5POS R/A MICRO USB JAE Electronics DX4R005J91R1500 Lite-On Inc LTST-C190KGKT Lite-On Inc LTST-C193KGKT-5A 21 4 J3,J4,J7,J8 CONN HEADER 2POS .100" SNGL GOLD Samtec Inc TSW-102-08-G-S 22 1 J15 CONN DB9 MALE .318" R/A NICKEL Norcomp Inc 182-009-113R531 23 2 Samtec Inc TSW-105-08-G-S 24 4 Samtec Inc TSW-103-08-G-S 25 2 J17,J20 CONN HEADER 5POS .100" SNGL GOLD J18,J22,J28,J2 CONN HEADER 3POS .100" SNGL GOLD 9 J19,J21 CONN HEADER 4POS .100" SNGL GOLD Samtec Inc TSW-104-08-G-S 26 1 J23 CONN HEADER 10POS .100" DL GOLD Samtec Inc TSW-105-08-G-D 27 3 L2,L3,L4 FERRITE CHIP 220 OHM 0805 Murata BLM21PG221SN1D 28 2 R1,R9 RES 180 OHM 1/10W 5% 0603 SMD Vishay Dale CRCW0603180RJNEA RES 68.0 OHM 1/8W 1% 0805 SMD Panasonic ERJ-6ENF68R0V 29 2 R2,R3 30 1 Vishay/Dale CRCW0603100KJNEA 31 10 Panasonic ERJ-3GEY0R00V 32 1 R5 RES 100K OHM 1/10W 5% 0603 SMD R7,R44,R46,R4 8,R49,R50,R51 RES 0.0 OHM 1/10W 0603 SMD ,R52, R63,R65 R8 RES 23.7K OHM 1/10W 1% 0603 SMD Panasonic ERJ-3EKF2372V 33 1 R10 RES 10.0K OHM 1/10W 1% 0603 SMD Panasonic ERJ-3EKF1002V 34 1 R11 RES 19.6K OHM 1/10W 1% 0603 SMD ERJ-3EKF1962V 35 1 R12 RES 100 OHM 1/8W 1% 0603 SMD 36 3 R13,R16,R18 RES 270 OHM 1/10W 5% 0603 SMD Panasonic Stackpole Electronics Inc Panasonic ERJ-3GEYJ271V 37 1 R14 RES 560 OHM 1/10W 1% 0603 SMD Panasonic ERJ-3EKF5600V 38 3 R20,R21,R22 RES 10.0K OHM 1/10W 1% 0603 SMD Panasonic ERJ-3EKF1002V 39 2 R23,R24 RES 2.2K OHM 1/10W 5% 0603 SMD Panasonic ERJ-3GEYJ222V CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** RNCP0603FTD100R 86 Table A-2. Bill of Materials (continued) Item Qty Reference Description THERMISTOR NTC 47K 1% 0603 Manufacturer Mfr Part Number Vishay BC Components Panasonic ERJ-3EKF9102V Panasonic ERJ-3EKF4701V 40 1 R25 41 1 42 4 43 2 R26 RES 91.0K OHM 1/10W 1% 0603 SMD R53,R54,R55,R RES 4.70K OHM 1/10W 1% 0603 SMD 57 R66,R67 RES 0.0 OHM 1/10W JUMP 0402 SMD 44 2 SW1,SW2 45 1 46 6 47 4 SW3 SWITCH TACTILE SPST-NO 0.02A 15V TP6,TP10,TP1 6,TP17,TP18,T TEST POINT PC MINI .040"D RED P19 TP11,TP12,TP1 TEST POINT PC MINI .040"D Black 3,TP14 48 1 U1 USB-Serial Dual Channel UART/I2C/SPI bridge with Cypress SemiconducCY7C65211-24LTXI CapSense and BCD tor 49 1 U2 IC REG LDO 3.3V 1A SOT-89-5 ON Semiconductor 50 1 U3 IC BATT CHARGER LI+ 1CELL 14TDFN Maxim Integrated MAX8856ETD+T 51 1 U4 IC ESD PROTECTION LO CAP SOT23-6 STMicroelectronics USBLC6-2SC6 MAX3245EEUI+ SWITCH SLIDE MINI SPDT PCMNT SLV NTCS0603E3473FHT Panasonic ERJ-2GE0R00X C&K Components 1101M2S3CQE2 Panasonic EVQ-PAC07K Keystone Electronics 5000 Keystone Electronics 5001 NCP694H33HT1G 52 1 U5 IC TXRX RS-232 1MBPS SD 28TSSOP Maxim Integrated 53 1 U7 IC EEPROM 128KBIT 400KHZ 8SOIC Microchip Technology 24LC128-I/SM 54 1 U8 IC EEPROM SPI BUS 2MB 8SOIC STMicroelectronics M95M02-DRMN6TP No Load Components 55 1 B1 56 1 C5 CAP TANT 100UF 10V 20% 1210 AVX Corporation TAJB107M010RNJ 57 1 C6 CAP TANT 330UF 10V 10% 2917 AVX Corporation TAJD337K010RNJ 58 1 C42 CAP TANT 4.7UF 25V 20% 1206 Kemet T491A475M025AT 59 1 C43 CAP CER 2.2UF 16V 10% X5R 0603 TDK Corporation C1608X5R1C225K/0.80 60 1 C44 CAP CER 0.1UF 16V 10% X7R 0402 Yageo CC0402KRX7R7BB104 61 1 C45 CAP CER 10000PF 16V 10% X7R 0402 Kemet C0402C103K4RACTU 62 1 Kemet C0402C100K5GACTU 63 4 Panasonic ERJ-3EKF4701V 64 1 C47 CAP CER 10PF 50V 10% NP0 0402 R29,R33,R56,R RES 4.70K OHM 1/10W 1% 0603 SMD 58 R47 RES 0.0 OHM 1/10W 0603 SMD Panasonic ERJ-3GEY0R00V 65 1 Vishay/Dale CRCW0603100KJNEA 66 6 R64 RES 100K OHM 1/10W 5% 0603 SMD TP1,TP2,TP3,T P7,TP9,TP15 Richco Plastic Co RBS-35BK Install On Bottom of PCB As Close To Corners As Possible 71 4 Bumpers BUMPER CLEAR.370X.19" CYLINDER Special Jumper Installation Instructions 72 11 NA Headers and Wire Housings MINI JUMPER GF 13.5 Kobiconn CLOSE TYPE BLACK 151-8030-E Caution LBL Bag and Tag 73 1 Caution Label "Caution: Use only recommended rechargeable Liion Battery. Check polarity of battery connector." 74 1 ESD Label LBL, PCBA Anti-Static Warning, 10mm X 10mm Cypress Semiconduc899-60014-01 tor 75 1 PCBA Label LBL for PCBA 121-60096-01, with barcode Cypress Semiconductor CYUSBS234 USB-Serial Development Kit Guide, Doc. # 001-86632 Rev. ** 87