PixArt / Mbed OS 5100_referenceCode

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main.cpp@0:c8a2256e02c2, 2018-04-03 (annotated)

Committer:
PixArtVY
Date:
Tue Apr 03 20:04:39 2018 +0000
Revision:
0:c8a2256e02c2
Child:
1:782127a132a3
First revision.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
PixArtVY 0:c8a2256e02c2 1 // PAA5100JE-Q: Optical Tracking Chip reference code.
PixArtVY 0:c8a2256e02c2 2 // Version: 1.0
PixArtVY 0:c8a2256e02c2 3 // Latest Revision Date: 4 Apr. 2018
PixArtVY 0:c8a2256e02c2 4 // By PixArt Imaging Inc.
PixArtVY 0:c8a2256e02c2 5 // Primary Engineer: Vincent Yeh (PixArt USA)
PixArtVY 0:c8a2256e02c2 6
PixArtVY 0:c8a2256e02c2 7 /*
PixArtVY 0:c8a2256e02c2 8 //=======================
PixArtVY 0:c8a2256e02c2 9 //Revision History
PixArtVY 0:c8a2256e02c2 10 //=======================
PixArtVY 0:c8a2256e02c2 11 Version 1.0 -- 4 Apr. 2018
PixArtVY 0:c8a2256e02c2 12 First release.
PixArtVY 0:c8a2256e02c2 13 */
PixArtVY 0:c8a2256e02c2 14
PixArtVY 0:c8a2256e02c2 15 #include "mbed.h"
PixArtVY 0:c8a2256e02c2 16 #include "SPIcommFunctions.h"
PixArtVY 0:c8a2256e02c2 17
PixArtVY 0:c8a2256e02c2 18 int main()
PixArtVY 0:c8a2256e02c2 19 {
PixArtVY 0:c8a2256e02c2 20 pc.baud(115200); // Set baud rate to 115200. Remember to sync serial terminal baud rate to the same value.
PixArtVY 0:c8a2256e02c2 21
PixArtVY 0:c8a2256e02c2 22 spi.format(8,3); // Set SPI to 8 bits with inverted polarity and phase-shifted to second edge.
PixArtVY 0:c8a2256e02c2 23 spi.frequency(1000000); // Set frequency for SPI communication.
PixArtVY 0:c8a2256e02c2 24 cs = 1; // Initialize chip select as inactive.
PixArtVY 0:c8a2256e02c2 25
PixArtVY 0:c8a2256e02c2 26 pc.printf("Program START\n\r");
PixArtVY 0:c8a2256e02c2 27
PixArtVY 0:c8a2256e02c2 28 pc.printf("ID Check: %2X\n\r", readRegister(0x00)); //Checks product ID to make sure communication protocol is working properly.
PixArtVY 0:c8a2256e02c2 29 if(readRegister(0x00) != 0x49)
PixArtVY 0:c8a2256e02c2 30 {
PixArtVY 0:c8a2256e02c2 31 pc.printf("Communication protocol error! Terminating program.\n\r");
PixArtVY 0:c8a2256e02c2 32 return 0;
PixArtVY 0:c8a2256e02c2 33 }
PixArtVY 0:c8a2256e02c2 34
PixArtVY 0:c8a2256e02c2 35
PixArtVY 0:c8a2256e02c2 36 startupCheck();
PixArtVY 0:c8a2256e02c2 37 if(startupFail == 3)
PixArtVY 0:c8a2256e02c2 38 {
PixArtVY 0:c8a2256e02c2 39 pc.printf("Start-up failed! Power cycle the chip and try again.\n\r");
PixArtVY 0:c8a2256e02c2 40 return 0;
PixArtVY 0:c8a2256e02c2 41 }
PixArtVY 0:c8a2256e02c2 42
PixArtVY 0:c8a2256e02c2 43 initializeSensor();
PixArtVY 0:c8a2256e02c2 44
PixArtVY 0:c8a2256e02c2 45 while(1)
PixArtVY 0:c8a2256e02c2 46 {
PixArtVY 0:c8a2256e02c2 47 //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:c8a2256e02c2 48
PixArtVY 0:c8a2256e02c2 49 if(readRegister(0x02) & 0x80)
PixArtVY 0:c8a2256e02c2 50 {
PixArtVY 0:c8a2256e02c2 51 grabData();
PixArtVY 0:c8a2256e02c2 52 printData();
PixArtVY 0:c8a2256e02c2 53 }
PixArtVY 0:c8a2256e02c2 54 }
PixArtVY 0:c8a2256e02c2 55 }