HEDS-9930EVB

HEDS-9930PRGEVB Evaluation Board & Programming Kit User Guide Version 1.0 HEDS-9930 HEDS-9930PRGEVB _UG100 January 27, 2022 HEDS-9930PRGEVB User Guide Evaluation Board & Programming Kit Broadcom, the pulse logo, Connecting everything, Avago Technologies, Avago, and the A logo are among the trademarks of Broadcom and/or its affiliates in the United States, certain other countries and/or the EU. Copyright © 2021 by Broadcom. All Rights Reserved. The term “Broadcom” refers to Broadcom Limited and/or its subsidiaries. For more information, please visit www.broadcom.com. Broadcom reserves the right to make changes without further notice to any products or data herein to improve reliability, function, or design. Information furnished by Broadcom is believed to be accurate and reliable. However, Broadcom does not assume any liability arising out of the application or use of this information, nor the application or use of any product or circuit described herein, neither does it convey any license under its patent rights nor the rights of others. HEDS-9930 HEDS-9930PRGEVB _UG100 2 HEDS-9930PRGEVB User Guide Evaluation Board & Programming Kit Table of Contents 1.0 HEDS-9930EVB Evaluation Board .......................................................................................................................... 4 1.1 Top and Bottom Views ......................................................................................................................................... 4 2.0 Select Options........................................................................................................................................................... 6 2.1 Programmable Select Options ............................................................................................................................. 8 3.0 Board Schematic & Pin Assignment ...................................................................................................................... 9 3.1 Connector Assignment ....................................................................................................................................... 10 4.0 Code Wheel Drawing .............................................................................................................................................. 12 5.0 HEDS-9930PRGEVB Programming USB-SPI Kit ................................................................................................. 13 6.0 AEDR-9930 Gateway Programming GUI .............................................................................................................. 14 7.0 AEDR-9930 Gateway SPI Protocol Calibration .................................................................................................... 18 HEDS-9930 HEDS-9930PRGEVB _UG100 3 HEDS-9930PRGEVB User Guide Evaluation Board & Programming Kit 1.0 HEDS-9930EVB Evaluation Board 1.1 Top and Bottom Views Mounting slot Mounting hole Figure 1 Bottom Side of the PCB Code wheel OD alignment guide lines Figure 2 Top Side of the PCB 397 LPI NOTE Please remove the protective kapton tape covering the encoder ASIC before use. The silk screen printed guide line on the PCB is to help in providing visual alignment of the code wheel edge (outer diameter) for each of the different Rop (CPR) tracks. A sample diagram showing the position when encoder is aligned to 625 CPR track is shown in Figure 3 below. HEDS-9930 HEDS-9930PRGEVB _UG100 4 HEDS-9930PRGEVB User Guide Evaluation Board & Programming Kit Figure 3 Bottom side of PCB Figure 4 Sample Evaluation Board Mounting with reference to Code Wheel HEDS-9930 HEDS-9930PRGEVB _UG100 5 HEDS-9930PRGEVB User Guide Evaluation Board & Programming Kit 2.0 Select Options Table 1: Selection Table for AEDR-9930 397 LPI No SEL1 SEL2 SEL3 Interpolation Factor 1 Low Low Low 1X 2 High Low Low 2X 3 Open* Low Low 3X 4 Low High Low 4X 5 High High Low 5X 6 Open High Low 6X 7 Low Open Low 7X 8 High Open Low 8X 9 Open Open Low 9X 10 Low Low High 10X 11 High Low High 11X 12 Open Low High 12X 13 Low High High 13X HEDS-9930 IND SEL Low High Open Low High Open Low High Open Low High Open Low High Open Low High Open Low High Open Low High Open Low High Open Low High Open Low High Open Low High Open Low High Open Index Interpolation 1X - Index Gated 90 deg Interpolation 1X - Index Gated 180 deg Interpolation 1X - Index Raw (Ungated) Interpolation 2X - Index Gated 90 deg Interpolation 2X - Index Gated 180 deg Interpolation 2X - Index Gated 360 deg Interpolation 3X - Index Gated 90 deg Interpolation 3X - Index Gated 180 deg Interpolation 3X - Index Gated 360 deg Interpolation 4X - Index Gated 90 deg Interpolation 4X - Index Gated 180 deg Interpolation 4X - Index Gated 360 deg Interpolation 5X - Index Gated 90 deg Interpolation 5X - Index Gated 180 deg Interpolation 5X - Index Gated 360 deg Interpolation 6X - Index Gated 90 deg Interpolation 6X - Index Gated 180 deg Interpolation 6X - Index Gated 360 deg Interpolation 7X - Index Gated 90 deg Interpolation 7X - Index Gated 180 deg Interpolation 7X - Index Gated 360 deg Interpolation 8X - Index Gated 90 deg Interpolation 8X - Index Gated 180 deg Interpolation 8X - Index Gated 360 deg Interpolation 9X - Index Gated 90 deg Interpolation 9X - Index Gated 180 deg Interpolation 9X - Index Gated 360 deg Interpolation 10X - Index Gated 90 deg Interpolation 10X - Index Gated 180 deg Interpolation 10X - Index Gated 360 deg Interpolation 11X - Index Gated 90 deg Interpolation 11X - Index Gated 180 deg Interpolation 11X - Index Gated 360 deg Interpolation 12X - Index Gated 90 deg Interpolation 12X - Index Gated 180 deg Interpolation 12X - Index Gated 360 deg Interpolation 13X - Index Gated 90 deg Interpolation 13X - Index Gated 180 deg Interpolation 13X - Index Gated 360 deg HEDS-9930PRGEVB _UG100 6 HEDS-9930PRGEVB User Guide Evaluation Board & Programming Kit 14 High High High 14X 15 Open High High 15X 16 Low Open High 16X 17 High Open High 17X 18 Open Open High 18X 19 Low Low Open 19X 20 High Low Open 20X 21 Open Low Open 25X 22 Low High Open 32X 23 High High Open 64X 24 Open High Open 128X 25 Low Open Open 256X 26 High Open Open 512X 27 Open Open Open SPI Mode HEDS-9930 Low High Open Low High Open Low High Open Low High Open Low High Open Low High Open Low High Open Low High Open Low High Open Low High Open Low High Open Low High Open Low High Open Low High Interpolation 14X - Index Gated 90 deg Interpolation 14X - Index Gated 180 deg Interpolation 14X - Index Gated 360 deg Interpolation 15X - Index Gated 90 deg Interpolation 15X - Index Gated 180 deg Interpolation 15X - Index Gated 360 deg Interpolation 16X - Index Gated 90 deg Interpolation 16X - Index Gated 180 deg Interpolation 16X - Index Gated 360 deg Interpolation 17X - Index Gated 90 deg Interpolation 17X - Index Gated 180 deg Interpolation 17X - Index Gated 360 deg Interpolation 18X - Index Gated 90 deg Interpolation 18X - Index Gated 180 deg Interpolation 18X - Index Gated 360 deg Interpolation 19X - Index Gated 90 deg Interpolation 19X - Index Gated 180 deg Interpolation 19X - Index Gated 360 deg Interpolation 20X - Index Gated 90 deg Interpolation 20X - Index Gated 180 deg Interpolation 20X - Index Gated 360 deg Interpolation 25X - Index Gated 90 deg Interpolation 25X - Index Gated 180 deg Interpolation 25X - Index Gated 360 deg Interpolation 32X - Index Gated 90 deg Interpolation 32X - Index Gated 180 deg Interpolation 32X - Index Gated 360 deg Interpolation 64X - Index Gated 90 deg Interpolation 64X - Index Gated 180 deg Interpolation 64X - Index Gated 360 deg Interpolation 128X - Index Gated 90 deg Interpolation 128X - Index Gated 180 deg Interpolation 128X - Index Gated 360 deg Interpolation 256X - Index Gated 90 deg Interpolation 256X - Index Gated 180 deg Interpolation 256X - Index Gated 360 deg Interpolation 512X - Index Gated 90 deg Interpolation 512X - Index Gated 180 deg Interpolation 512X - Index Gated 360 deg SPI Mode: Program Selection SPI Mode: Output Enabled HEDS-9930PRGEVB _UG100 7 HEDS-9930PRGEVB User Guide Evaluation Board & Programming Kit NOTE Open selection must be connected to middle of a voltage divider circuit. Recommended to use 2 x 4.7kΩ resistors (Vcc-GND) Vcc Vcc 4.7kΩ 4.7kΩ SEL SEL 4.7kΩ 4.7kΩ The digital interpolation factor above may be used in conjunction with the equations below to cater to various rotational speed (RPM) and count per revolution (CPR). RPM = (Count Frequency x 60) / CPR The CPR (@ 1X interpolation) is based on the following equation that is dependent on radius of operation (ROP). CPR = LPI x 2π x ROP (inch) or CPR = LP mm x 2π x ROP (mm) Note: LPmm (lines per mm) = LPI / 25.4 2.1 Programmable Select Options SPI programmable with interpolator factor from 1x to 1024x. 1. 2. Configure external selection to SPI Mode: Program Selection. For signals output after configuration, set external selection to SPI Mode: Output Enabled HEDS-9930 HEDS-9930PRGEVB _UG100 8 HEDS-9930PRGEVB User Guide Evaluation Board & Programming Kit 3.0 Board Schematic & Pin Assignment Figure 1: HEDS-9930EVB Evaluation Board Schematic HEDS-9930 HEDS-9930PRGEVB _UG100 9 HEDS-9930PRGEVB User Guide Evaluation Board & Programming Kit 3.1 Connector Assignment Table 2: Connector 1 Pin Assignment Connector 1 (Top Side) Label 1 CAL 2 ANA OUT 3 INDEX_SEL 4 SEL1 5 SEL2 6 SEL3 7 AGND/VSSA 8 VCC 9 VDD 10 DGND/VSSD 11 CH_A/A+ 12 CH_A/A- (SPI_DIN) 13 CH_B/B+ 14 CH_BB/B- (SPI_CLK) 15 CH_I/I+(SPI_DOUT) 16 CH_I/I- (CLK_100KHz) 17 NC 18 NC The finger design of Connector 1 is match to either of the following card edge connector: 1. EDAC, CONN EDGE DUAL FMALE 36POS 0.100, P/N# 395-036-520-202 or, 2. SULLINS, CONN EDGE DUAL FMALE 36POS 0.100, P/N# EBC18DREH The use of the above mentioned card edge connector is not needed if necessary connections can be made via manual soldering to the relevant card edge fingers. HEDS-9930 HEDS-9930PRGEVB _UG100 10 HEDS-9930PRGEVB User Guide Evaluation Board & Programming Kit Table 3: Connector 2 Pin Assignment Connector 1 (Top Side) Label 1 VCC SEL1 2 OPEN 4 VCC SEL2 AGND 6 OPEN 7 VCC SEL3 8 9 AGND OPEN 10 11 12 HEDS-9930 AGND 3 5 NOTE State VCC INDEX_SEL AGND OPEN Please refer to Table 1 AEDR-9930 397 LPI for the various interpolation selection options available by changing the SEL1, SEL2 & SEL3 jumper positions. HEDS-9930PRGEVB _UG100 11 HEDS-9930PRGEVB User Guide Evaluation Board & Programming Kit 4.0 Code Wheel Drawing For AEDR-9930 evaluation board sample, the matching code wheel sample drawing is as shown in Figure 6 below. Figure 2: AEDR-9930 397 LPI 4-track (CPR) sample code wheel drawing For the detailed drawing of the sample code wheel, please do request from regional FAE. Note: a) Ignore 256CPR codewheel track, is not valid to use with auto calibration. b) All other codewheel tracks with base resolution 512, 1000 and 1250CPR required Auto Calibration HEDS-9930 HEDS-9930PRGEVB _UG100 12 HEDS-9930PRGEVB User Guide Evaluation Board & Programming Kit 5.0 HEDS-9930PRGEVB Programming USB-SPI Kit In order to program interpolation value other than the ones offered in Table 1 via the SEL1, SEL2 & SEL3 option pins, user may connect to the AEDS-9930 encoder ASIC via SPI interface. Broadcom offers a simple USB to SPI programming kit, together with a PC-based custom program for end user to program in the desired interpolation value. Figure 3: The HEDS-9930PRGEVB USB to SPI Programmer Kit Figure 4: The HEDS-9930PRGEVB USB to SPI Programmer Kit Schematic HEDS-9930 HEDS-9930PRGEVB _UG100 13 HEDS-9930PRGEVB User Guide Evaluation Board & Programming Kit 6.0 AEDR-9930 Gateway Programming GUI The HEDS-9930PRGEVB kit is to be used together with the AEDR-9930 Gateway.exe to program in the desired interpolation factor into the encoder ASIC. a. Download the zip file from: https://broadcom.ent.box.com/v/HEDS-9930-Programming-Software b. Saved the zip file into a PC local drive. c. Unzip the AR3_AEDR-9930_Gateway programming software.zip to a local folder of choice. HEDS-9930 HEDS-9930PRGEVB _UG100 14 HEDS-9930PRGEVB User Guide d. Evaluation Board & Programming Kit Select & double click on AEDR-9930 Gateway.exe file. e. Once the AEDR-9930 Gateway.exe program is running, the board should be detected. HEDS-9930 HEDS-9930PRGEVB _UG100 15 HEDS-9930PRGEVB User Guide Evaluation Board & Programming Kit Figure 5: Both amber & green LEDs detected by the AR3_AEDR-9930_Gateway program f. If the following message appears, please do check on board connections & try again. g. Click “Read” button to read back saved settings from AEDR-9930 encoder ASIC, i. ii. HEDS-9930 If existing settings is read out successfully, it will display Interpolation Factor & Index Width settings saved, as in the example below on the left. If AEDR-9930 is not connected or detected, the program will terminate. Please refer to “log.txt” in the same folder to check the failure status, refer to picture on the right. HEDS-9930PRGEVB _UG100 16 HEDS-9930PRGEVB User Guide iii. Evaluation Board & Programming Kit If there is communication failure with AEDR-9930, the program will exit, please refer to log.txt file, same as step (g) to check on the error message h. Enter the interpolation factor required (1 to 1024) and index width setting. Press “Program” to save the settings into AEDR-9930. HEDS-9930 HEDS-9930PRGEVB _UG100 17 HEDS-9930PRGEVB User Guide i. Evaluation Board & Programming Kit A message “Program DUT OK!” will appear when the settings is saved successfully into the AEDR-9930. 7.0 Using AEDR-9930 Gateway SPI Protocol to perform Calibration Motor rotation with minimal speed ripple or smooth linear movement is required during calibration. This is to enable Index signals to be automatically adjusted to obtain a good crossover. Steps to follow: 1. 2. 3. 4. Turn the motor at a constant speed of 500rpm or linear stage reciprocal movement (stroke[50mm/s]) Click on “Auto Calibration” button. Calibration in progress “Calibrating” will be shown in Status Calibration status will indicate “Auto Cal Done” if calibration is successfully completed. Else it will indicate “Error” Note: Calibration error may be caused by wide spatial displacement, or failure to obtain index signals crossover. Figure 6: Samples of screen capture from AEDR-9930 Gateway program to perform calibration HEDS-9930 HEDS-9930PRGEVB _UG100 18 HEDS-9930PRGEVB User Guide HEDS-9930 Evaluation Board & Programming Kit HEDS-9930PRGEVB _UG100 19