PixArt / Mbed OS 9123_referenceCode

Reference firmware for PixArt's PMT9123 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@1:1d99f5c9581f, 2018-07-18 (annotated)

Committer:
PixArtVY
Date:
Wed Jul 18 18:36:29 2018 +0000
Revision:
1:1d99f5c9581f
Parent:
0:71ff24e8c21e 
Added Apache License notice.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
PixArtVY 0:71ff24e8c21e 1 // PMT9123QS: Low Power Right-Angle Optical Track Sensor
PixArtVY 1:1d99f5c9581f 2 // Version: 1.1
PixArtVY 1:1d99f5c9581f 3 // Latest Revision Date: 18 July 2018
PixArtVY 0:71ff24e8c21e 4 // By PixArt Imaging Inc.
PixArtVY 0:71ff24e8c21e 5 // Primary Engineer: Vincent Yeh (PixArt USA)
PixArtVY 0:71ff24e8c21e 6
PixArtVY 1:1d99f5c9581f 7 // Copyright [2018] [Vincent Yeh]
PixArtVY 1:1d99f5c9581f 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 1:1d99f5c9581f 9 // http://www.apache.org/licenses/LICENSE-2.0
PixArtVY 1:1d99f5c9581f 10
PixArtVY 1:1d99f5c9581f 11
PixArtVY 0:71ff24e8c21e 12 /*
PixArtVY 0:71ff24e8c21e 13 //=======================
PixArtVY 0:71ff24e8c21e 14 //Revision History
PixArtVY 0:71ff24e8c21e 15 //=======================
PixArtVY 1:1d99f5c9581f 16 Version 1.1 -- 18 July 2018
PixArtVY 1:1d99f5c9581f 17 Added apache license notice.
PixArtVY 1:1d99f5c9581f 18
PixArtVY 0:71ff24e8c21e 19 Version 1.0 -- 9 Apr. 2018
PixArtVY 0:71ff24e8c21e 20 First release.
PixArtVY 0:71ff24e8c21e 21 */
PixArtVY 0:71ff24e8c21e 22
PixArtVY 0:71ff24e8c21e 23 #include "mbed.h"
PixArtVY 0:71ff24e8c21e 24 #include "registerArrays.h"
PixArtVY 0:71ff24e8c21e 25 #include "I2CcommFunctions.h"
PixArtVY 0:71ff24e8c21e 26
PixArtVY 0:71ff24e8c21e 27 int main()
PixArtVY 0:71ff24e8c21e 28 {
PixArtVY 0:71ff24e8c21e 29 pc.baud(115200); // Set baud rate to 115200. Remember to sync serial terminal baud rate to the same value.
PixArtVY 0:71ff24e8c21e 30 i2c.frequency(400000); // Set frequency for I2C communication.
PixArtVY 0:71ff24e8c21e 31 startup();
PixArtVY 0:71ff24e8c21e 32
PixArtVY 0:71ff24e8c21e 33 pc.printf("Program START\n\r");
PixArtVY 0:71ff24e8c21e 34 pc.printf("ID Check: %2X\n\r", readRegister(0x00)); //Checks product ID to make sure communication protocol is working properly.
PixArtVY 0:71ff24e8c21e 35 if(readRegister(0x00) != 0x41)
PixArtVY 0:71ff24e8c21e 36 {
PixArtVY 0:71ff24e8c21e 37 pc.printf("Communication protocol error! Terminating program.\n\r");
PixArtVY 0:71ff24e8c21e 38 return 0;
PixArtVY 0:71ff24e8c21e 39 }
PixArtVY 0:71ff24e8c21e 40
PixArtVY 0:71ff24e8c21e 41 initialize();
PixArtVY 0:71ff24e8c21e 42 load(optimize, optimize_size); //Load register settings from the "initialize" array
PixArtVY 0:71ff24e8c21e 43
PixArtVY 0:71ff24e8c21e 44 while(1)
PixArtVY 0:71ff24e8c21e 45 {
PixArtVY 0:71ff24e8c21e 46 //pc.printf("MOTION bit: %2X\n\r", (readRegister(0x02) & 0x80) >> 7); //Prints motion bit for debugging. 1 = motion detected. 0 = no motion detected.
PixArtVY 0:71ff24e8c21e 47
PixArtVY 0:71ff24e8c21e 48 if(readRegister(0x02) & 0x80)
PixArtVY 0:71ff24e8c21e 49 {
PixArtVY 0:71ff24e8c21e 50 grabData();
PixArtVY 0:71ff24e8c21e 51 printData();
PixArtVY 0:71ff24e8c21e 52 }
PixArtVY 0:71ff24e8c21e 53 }
PixArtVY 0:71ff24e8c21e 54 }