PixArt Optical Finger Navigation, OFN, demo program for A350 sensor with library. Alternative porting style in C++. Initial release v1.0.
Dependencies: Pixart_OFN_A
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Diff: main.cpp
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- 0:a051df82fcdf
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Mon Jun 25 21:14:10 2018 +0000 @@ -0,0 +1,63 @@ +// ADBM-A350: Finger navigation chip. +// Version: 1.0 +// Latest Revision Date: 14 June 2018 +// By PixArt Imaging Inc. +// Primary Engineer: Vincent Yeh (PixArt USA) + +/* +//======================= +//Revision History +//======================= +Version 1.0 -- 14 June 2018 +First release. +*/ + +#include "mbed.h" +#include "registerArrays.h" +//#include "I2CcommFunctions.h" +#include "SPIcommFunctions.h" +//Make sure you only have one of either SPIcommFunctions or I2CcommFunctions enabled. You cannot include both headers. + +int main() +{ + pc.baud(115200); // Set baud rate to 115200. Remember to sync serial terminal baud rate to the same value. + + #ifdef SPImode + IO_sel = 1; // Set IO_select pin to be HIGH for SPI. + spi.format(8,3); // Set SPI to 8 bits with inverted polarity and phase-shifted to second edge. + spi.frequency(100000); // Set frequency for SPI communication. + cs = 1; // Initialize chip select as inactive. + #endif + + #ifdef I2Cmode + IO_sel = 0; // Set IO_select pin to be LOW for I2C. + i2c.frequency(400000); // Set frequency for I2C communication. + cs = 1; // These two pins are used to determine the device's slave ID. + MOSI = 1; + #endif + + shutdown = 0; + writeRegister(0x3A, 0x5A); //Soft-reset the chip. + + 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) != 0x88) + { + 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)); //Prints EVENT register for debugging. + + if(readRegister(0x02) & 0x80) + { + grabData(); + printData(); + } + } +}