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
- Committer:
- PixArtVY
- Date:
- 2018-04-20
- Revision:
- 0:5a34a4387fb0
- Child:
- 1:efa5e5a1e308
File content as of revision 0:5a34a4387fb0:
// PAT9130EW: Optical Tracking Miniature Chip reference code. // Version: 1.0 // Latest Revision Date: 16 Apr. 2018 // By PixArt Imaging Inc. // Primary Engineer: Vincent Yeh (PixArt USA) /* //======================= //Revision History //======================= Version 1.0 -- 16 Apr. 2018 First release. */ #include "mbed.h" #include "registerArrays.h" #include "SPIcommFunctions.h" int main() { pc.baud(115200); // Set baud rate to 115200. Remember to sync serial terminal baud rate to the same value. spi.format(8,3); // Set SPI to 8 bits with inverted polarity and phase-shifted to second edge. spi.frequency(1000000); // Set frequency for SPI communication. cs = 1; // Initialize chip select as inactive. pc.printf("Program START\n\r"); pc.printf("ID Check: %2X\n\r", readRegister(0x00)); //Checks product ID to make sure communication protocol is working properly. if(readRegister(0x00) != 0x31) { pc.printf("Communication protocol error! Terminating program.\n\r"); return 0; } writeRegister(0x06, 0x80); //Software reset (i.e. set bit7 to 1) wait_ms(1); //Delay 1 ms for chip reset timing. pc.printf("ID Check #2: %2X\n\r", readRegister(0x00)); //Checks product ID after resetting to make sure communication protocol is working properly. if(readRegister(0x00) != 0x31) { pc.printf("Communication protocol error! Terminating program.\n\r"); return 0; } load(initialize, initialize_size); //Load register settings from the "initialize" array (see registerArrays.h) while(1) { //pc.printf("MOTION bit: %2X\n\r", (readRegister(0x02) & 0x80) >> 7); //Prints motion bit for debugging. 1 = motion detected. 0 = no motion detected. if(readRegister(0x02) & 0x80) { grabData(); printData(); } } }