WL18XXCOM82SDMMC

WL18xxCOM82SDMMC WL18XX SDMMC and UART Adapter Board User's Guide Literature Number: SWRU398 January 2015 User's Guide SWRU398 – January 2015 WL18xxCOM82SDMMC WL18XX SDMMC and UART Adapter Board 1 General Description This board is designed for simple connection between the edge 100-pin edge connector COM (WiLink chip on module) solutions board to the host platforms through an SDIO edge connector for WLAN, a 20pin FPC connector for Bluetooth®, and PCM interfaces or wire cable. 2 Features • • • 3 Ease of connection to multiple host platforms using 1.8-V and 3.3-V interfaces through level shifting. Evaluation and debugging of the COM8 module through an onboard USB port with four debug interfaces Onboard power (through a USB port) and clock, enables distribution to the module Hardware Description SDMMC Conn SYS_3V3 LDO option PCM_IF UART_IF GPIO Conn SYS_1V8 FPC Conn BT_EN WL_EN WL SW BT SW COM8 Conn SYS_3V3 LDO option SYS_5V FTDI Mini USB Conn Figure 1. SDMMC Adapter Board Overview WiLink is a trademark of Texas Instruments. Bluetooth is a registered trademark of Bluetooth SIG. 2 WL18xxCOM82SDMMC WL18XX SDMMC and UART Adapter Board Copyright © 2015, Texas Instruments Incorporated SWRU398 – January 2015 Submit Documentation Feedback Hardware Description www.ti.com 3.1 Connector and Jumper Descriptions 3.1.1 Jumper Settings Schematics Reference Description Comments J2 VIO, 1.8-V source J3 Bluetooth PCM LS (1.8 V/3.3 V) selection (1-2) is 1.8 V (2-3) is 3.3 V (default) J4 Bluetooth UART LS (1.8 V/3.3 V) selection (1-2) is 1.8 V (2-3) is 3.3 V (default) J24 WLAN SDIO LS (1.8 V/3.3 V) selection (1-2) is 1.8 V (2-3) is 3.3 V (default) J25 Bluetooth/WL Enable LS (1.8 V/3.3 V) selection (1-2) is 1.8 V (2-3) is 3.3 V (default) J6, J14, J20, J21 3.3-V power selection connect one of three options J6 power from SD connector. (default) J14 power from FPC connector. J20 power from onboard LDO J21 must be closed to supply the LDO from USB. 3.1.2 3.1.3 J7, J8, J10, J11 Bluetooth HCI source selection Host mode: J7, J8, J10, J11 (1-2). (default) Debug mode: J7, J8, J10, J11 (2-3) Host mode (swapped): J7-1 to J8-2 / J8-1 to J7-2 / J10-1 to J11-2 / J11-1 to J12-2 J9 Bluetooth enable control (1-2): EN control by push-button. (2-3): Control by host. (default) J12 WL enable control (1-2): EN control by push-button. (2-3): Control by host. (default) J15, J16, J17, J18 PCM Interface Option to drive the PCM interface from host through FPC connector or connect usign the external blue wire cable. J23 Slow clock Supply slow clock to the module. (NU by default) J19 Debug header Option for WL_IRQ and GPIO9 through GPIO12 to connect using the external blue wire cable. Reference Usage Comments SW1 BT_EN Module Bluetooth enable control SW2 WL_EN Module WLAN enable control Push-Buttons LEDs Reference Color Description Comments LED1 Red SYS_1V8 ON, when SYS_1V8 is available LED2 Red SYS_3V3 ON, when 3V3 supply is available LED3 Blue BT_EN ON, when BT_EN is supplied from host/on board LED4 Green WL_EN ON, when WLAN_EN is supplied from host/on board SWRU398 – January 2015 Submit Documentation Feedback WL18xxCOM82SDMMC WL18XX SDMMC and UART Adapter Board Copyright © 2015, Texas Instruments Incorporated 3 Hardware Description www.ti.com Figure 2. 3.2 Power Supply The board is designed to accept power from the SD/FPC connector of Host platform or onboard LDO generated from 5 V of the USB connector. 3.2.1 3.3 V From SD Connector Figure 3. Supply 3V3 from SD Connect (J6 short) 4 WL18xxCOM82SDMMC WL18XX SDMMC and UART Adapter Board Copyright © 2015, Texas Instruments Incorporated SWRU398 – January 2015 Submit Documentation Feedback Hardware Description www.ti.com 3.2.2 3.3 V From FPC Connector Figure 4. Supply 3V3 From FFC Connect (J14 Short) 3.3-V Onboard LDO Supply USB 3.2.3 Figure 5. Supply 3V3 From Onboard LDO (J20, J21 Short) 3.3 Slow Clock Source There is an option on board to supply the slow clock of 32.768 kHz to the module. By default, this option is not used because the COM board has an onboard oscillator. Figure 6. Slow Clock (J23 Short) SWRU398 – January 2015 Submit Documentation Feedback WL18xxCOM82SDMMC WL18XX SDMMC and UART Adapter Board Copyright © 2015, Texas Instruments Incorporated 5 Hardware Description 3.4 www.ti.com Debug An onboard FTDI chip on the adapter board drives all the debug interfaces on one mini USB port. The FTDI chip provides the ability to have Bluetooth/WiFi firmware logger and Bluetooth HCI/WLAN RS232 control interfaces routed easily to a single USB port that can supply the entire system. The board can be operated with debug capabilities in two ways: 1. Use the board as a stand-alone COM board debug. (a) Generate the 3.3 V/1.8 V from the onboard LDO through the USB port J22 (J2, J21, and J20 assembled). (b) Enable lines can be controlled from the board (Bluetooth J9 pins 1-2 short; WLAN J12 pins 1-2 short). (c) If the COM8 board does not have onboard slow clock, drive the slow clock to the module (J23). (d) All four interfaces are driven to the FTDI device and through the USB port. Four virtual ports will be created on the PC in the following order: Bluetooth UART, Bluetooth logger, WLAN RS232, WLAN logger (UART J7, J8, J10, J11 short 2-3; Debug LS: J28 assembled) 2. Use the firmware loggers to monitor the operation of the device while running with a host. (a) Make sure that only one source is driving the SYS_3V3 (J6 or J14) and J20 is disconnected. (b) For the logger operation, connect the USB cable to J22 and make sure J21 and J28 are assembled. (c) On the virtual ports of the PC, Bluetooth logger will be identified as second port and WLAN as the fourth. 4 Connecting Application The WL18xxCOM82SDMMC board is designed to connect the WiLink™ 8 evaluation board (WL18xxMODCOM8x) or any other COM (connectivity on module) board using MEC6 edge 100-pin connector to any host platform using SD card/FPC connector/single-wire ribbon. 6 WL18xxCOM82SDMMC WL18XX SDMMC and UART Adapter Board Copyright © 2015, Texas Instruments Incorporated SWRU398 – January 2015 Submit Documentation Feedback Connecting Application www.ti.com WL18xxCOM82SDMMC Adapter Board WiLink8 Module Evaluation Board Figure 7. WiLink8 COM8 Board With Adapter Board Overview SWRU398 – January 2015 Submit Documentation Feedback WL18xxCOM82SDMMC WL18XX SDMMC and UART Adapter Board Copyright © 2015, Texas Instruments Incorporated 7 Connecting Application 4.1 Connecting to Platform General Connection Options To Platform SD Connector 4.1.1 www.ti.com Figure 8. Connect to Platform With SDMMC for SDIO Interface 20cm To FPC Connector of the HOST Platform Figure 9. Connect to Platform With FPC Cable 8 WL18xxCOM82SDMMC WL18XX SDMMC and UART Adapter Board Copyright © 2015, Texas Instruments Incorporated SWRU398 – January 2015 Submit Documentation Feedback Connecting Application www.ti.com 4.1.1.1 Example of Connection Procedure Using the Wire-up Kit Figure 10 shows an example of the connection procedure using the wire-up kit. Figure 10. General Wire-up Connection SWRU398 – January 2015 Submit Documentation Feedback WL18xxCOM82SDMMC WL18XX SDMMC and UART Adapter Board Copyright © 2015, Texas Instruments Incorporated 9 Connecting Application 4.1.2 Freescale Sabre Board Connectivity COM8 100-pin WL8 Naming Adapter Board FPC(J13) Sabre Board FPC(J13) (1) 66 HCI_TX 3 J13.18 (SPINOR_MISO) 68 HCI_RX 5 J13.16 (SPINOR_CS0) 70 HCI_CTS 4 J13.17 (KEY_ROW4) 72 HCI_RTS 2 J13.19 (KEY_COL4) 89 BT_EN 15 J13.6 (KEY_ROW6) 34 WL_IRQ 19 J13.2 (SPINOR_CLK) 4 WL_EN 20 J13.1 (SPINOR_MOSI) 5,7 3.3V 6,7 J13.14 and J13.15 52 BT_AUD_CLK 10 54 BT_AUD_FSYNC 9 56 BT_AUD_IN 11 58 BT_AUD_OUT 12 SDIO0-3, SDIO_Clk, SDIO_CMD, Power J5 WiFi_IF (1) (2) 10 www.ti.com (2) J500 For Sabre board operation, ensure that R212, R213, R209, R214, R210, R215, R211 are assembled WiFi SDIO interface is connected directly from J5 connector on adapter board to J500 SD slot on Sabre board WL18xxCOM82SDMMC WL18XX SDMMC and UART Adapter Board Copyright © 2015, Texas Instruments Incorporated SWRU398 – January 2015 Submit Documentation Feedback Connecting Application www.ti.com Figure 11. Connection Diagram (Top) SWRU398 – January 2015 Submit Documentation Feedback WL18xxCOM82SDMMC WL18XX SDMMC and UART Adapter Board Copyright © 2015, Texas Instruments Incorporated 11 Revision History www.ti.com Figure 12. Connection Diagram (Bottom) 5 12 Revision History Date Revision Details January 2015 * Initial Release WL18xxCOM82SDMMC WL18XX SDMMC and UART Adapter Board Copyright © 2015, Texas Instruments Incorporated SWRU398 – January 2015 Submit Documentation Feedback IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. 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