Reference firmware for PixArt's PAT9130EW sensor and evaluation board. "Hello World" and "Library" contain the exact same files. Please import just one of the two into your mBed compiler as a new program and not as a library.
main.cpp@1:efa5e5a1e308, 2018-07-18 (annotated)
- Committer:
- PixArtVY
- Date:
- Wed Jul 18 18:33:03 2018 +0000
- Revision:
- 1:efa5e5a1e308
- Parent:
- 0:5a34a4387fb0
Added Apache License notice.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
PixArtVY | 0:5a34a4387fb0 | 1 | // PAT9130EW: Optical Tracking Miniature Chip reference code. |
PixArtVY | 1:efa5e5a1e308 | 2 | // Version: 1.1 |
PixArtVY | 1:efa5e5a1e308 | 3 | // Latest Revision Date: 18 July 2018 |
PixArtVY | 0:5a34a4387fb0 | 4 | // By PixArt Imaging Inc. |
PixArtVY | 0:5a34a4387fb0 | 5 | // Primary Engineer: Vincent Yeh (PixArt USA) |
PixArtVY | 0:5a34a4387fb0 | 6 | |
PixArtVY | 1:efa5e5a1e308 | 7 | // Copyright [2018] [Vincent Yeh] |
PixArtVY | 1:efa5e5a1e308 | 8 | // Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at: |
PixArtVY | 1:efa5e5a1e308 | 9 | // http://www.apache.org/licenses/LICENSE-2.0 |
PixArtVY | 1:efa5e5a1e308 | 10 | |
PixArtVY | 1:efa5e5a1e308 | 11 | |
PixArtVY | 0:5a34a4387fb0 | 12 | /* |
PixArtVY | 0:5a34a4387fb0 | 13 | //======================= |
PixArtVY | 0:5a34a4387fb0 | 14 | //Revision History |
PixArtVY | 0:5a34a4387fb0 | 15 | //======================= |
PixArtVY | 1:efa5e5a1e308 | 16 | Version 1.1 -- 18 July 2018 |
PixArtVY | 1:efa5e5a1e308 | 17 | Added apache license notice. |
PixArtVY | 1:efa5e5a1e308 | 18 | |
PixArtVY | 0:5a34a4387fb0 | 19 | Version 1.0 -- 16 Apr. 2018 |
PixArtVY | 0:5a34a4387fb0 | 20 | First release. |
PixArtVY | 0:5a34a4387fb0 | 21 | */ |
PixArtVY | 0:5a34a4387fb0 | 22 | |
PixArtVY | 0:5a34a4387fb0 | 23 | #include "mbed.h" |
PixArtVY | 0:5a34a4387fb0 | 24 | #include "registerArrays.h" |
PixArtVY | 0:5a34a4387fb0 | 25 | #include "SPIcommFunctions.h" |
PixArtVY | 0:5a34a4387fb0 | 26 | |
PixArtVY | 0:5a34a4387fb0 | 27 | int main() |
PixArtVY | 0:5a34a4387fb0 | 28 | { |
PixArtVY | 0:5a34a4387fb0 | 29 | pc.baud(115200); // Set baud rate to 115200. Remember to sync serial terminal baud rate to the same value. |
PixArtVY | 0:5a34a4387fb0 | 30 | |
PixArtVY | 0:5a34a4387fb0 | 31 | spi.format(8,3); // Set SPI to 8 bits with inverted polarity and phase-shifted to second edge. |
PixArtVY | 0:5a34a4387fb0 | 32 | spi.frequency(1000000); // Set frequency for SPI communication. |
PixArtVY | 0:5a34a4387fb0 | 33 | cs = 1; // Initialize chip select as inactive. |
PixArtVY | 0:5a34a4387fb0 | 34 | |
PixArtVY | 0:5a34a4387fb0 | 35 | pc.printf("Program START\n\r"); |
PixArtVY | 0:5a34a4387fb0 | 36 | |
PixArtVY | 0:5a34a4387fb0 | 37 | pc.printf("ID Check: %2X\n\r", readRegister(0x00)); //Checks product ID to make sure communication protocol is working properly. |
PixArtVY | 0:5a34a4387fb0 | 38 | if(readRegister(0x00) != 0x31) |
PixArtVY | 0:5a34a4387fb0 | 39 | { |
PixArtVY | 0:5a34a4387fb0 | 40 | pc.printf("Communication protocol error! Terminating program.\n\r"); |
PixArtVY | 0:5a34a4387fb0 | 41 | return 0; |
PixArtVY | 0:5a34a4387fb0 | 42 | } |
PixArtVY | 0:5a34a4387fb0 | 43 | |
PixArtVY | 0:5a34a4387fb0 | 44 | writeRegister(0x06, 0x80); //Software reset (i.e. set bit7 to 1) |
PixArtVY | 0:5a34a4387fb0 | 45 | wait_ms(1); //Delay 1 ms for chip reset timing. |
PixArtVY | 0:5a34a4387fb0 | 46 | |
PixArtVY | 0:5a34a4387fb0 | 47 | pc.printf("ID Check #2: %2X\n\r", readRegister(0x00)); //Checks product ID after resetting to make sure communication protocol is working properly. |
PixArtVY | 0:5a34a4387fb0 | 48 | if(readRegister(0x00) != 0x31) |
PixArtVY | 0:5a34a4387fb0 | 49 | { |
PixArtVY | 0:5a34a4387fb0 | 50 | pc.printf("Communication protocol error! Terminating program.\n\r"); |
PixArtVY | 0:5a34a4387fb0 | 51 | return 0; |
PixArtVY | 0:5a34a4387fb0 | 52 | } |
PixArtVY | 0:5a34a4387fb0 | 53 | |
PixArtVY | 0:5a34a4387fb0 | 54 | load(initialize, initialize_size); //Load register settings from the "initialize" array (see registerArrays.h) |
PixArtVY | 0:5a34a4387fb0 | 55 | |
PixArtVY | 0:5a34a4387fb0 | 56 | while(1) |
PixArtVY | 0:5a34a4387fb0 | 57 | { |
PixArtVY | 0:5a34a4387fb0 | 58 | //pc.printf("MOTION bit: %2X\n\r", (readRegister(0x02) & 0x80) >> 7); //Prints motion bit for debugging. 1 = motion detected. 0 = no motion detected. |
PixArtVY | 0:5a34a4387fb0 | 59 | |
PixArtVY | 0:5a34a4387fb0 | 60 | if(readRegister(0x02) & 0x80) |
PixArtVY | 0:5a34a4387fb0 | 61 | { |
PixArtVY | 0:5a34a4387fb0 | 62 | grabData(); |
PixArtVY | 0:5a34a4387fb0 | 63 | printData(); |
PixArtVY | 0:5a34a4387fb0 | 64 | } |
PixArtVY | 0:5a34a4387fb0 | 65 | } |
PixArtVY | 0:5a34a4387fb0 | 66 | } |