68 lines
1.8 KiB
C
68 lines
1.8 KiB
C
#include <bcm2835.h>
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#include <stdio.h>
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#include <math.h>
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#include "PAJ7620U2.h"
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/******************* PAJ7620U2 Driver Interface *****************************/
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char I2C_readByte(char reg)
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{
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char buf[] = { reg };
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bcm2835_i2c_read_register_rs(buf, buf, 1);
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return buf[0];
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}
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unsigned short I2C_readU16(char reg)
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{
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char buf[] = { reg,0 };
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bcm2835_i2c_read_register_rs(buf, buf, 2);
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int value = buf[1] * 0x100 + buf[0];
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return value;
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}
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void I2C_writeByte(char reg, char val)
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{
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char buf[] = { reg,val };
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bcm2835_i2c_write(buf, 2);
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}
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uint8_t PAJ7620U2_init()
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{
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uint8_t i,State;
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bcm2835_i2c_begin();
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bcm2835_i2c_setSlaveAddress(PAJ7620U2_I2C_ADDRESS);
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bcm2835_i2c_set_baudrate(10000);
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bcm2835_delay(5);
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State = I2C_readByte(0x00); //Read State
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if (State != 0x20) return 0; //Wake up failed
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I2C_writeByte(PAJ_BANK_SELECT, 0); //Select Bank 0
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for (i=0;i< Init_Array;i++)
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{
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I2C_writeByte(Init_Register_Array[i][0], Init_Register_Array[i][1]);//Power up initialize
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}
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return 1;
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}
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int main(int argc, char** argv)
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{
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uint8_t i, OBJ_BRIGHTNESS;
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unsigned short OBJ_SIZE;
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printf("\nGesture Sensor Test Program ...\n");
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if (!bcm2835_init()) return 1;
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bcm2835_delay(5);
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if(!PAJ7620U2_init())
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{ printf("\nGesture Sensor Error\n");
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return 0;
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}
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printf("\nGesture Sensor OK\n");
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I2C_writeByte(PAJ_BANK_SELECT, 0);//Select Bank 0
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for (i = 0; i < PS_Array_SIZE; i++)
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{
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I2C_writeByte(Init_PS_Array[i][0], Init_PS_Array[i][1]);//Gesture register initializes
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}
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I2C_writeByte(PAJ_BANK_SELECT, 0);
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while (1)
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{
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OBJ_BRIGHTNESS = I2C_readByte(PAJ_OBJ_BRIGHTNESS);
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OBJ_SIZE = I2C_readU16(PAJ_OBJ_SIZE_L);
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printf("Object brightness = %d ,Object size = %d\n", OBJ_BRIGHTNESS, OBJ_SIZE);//Object Brightness (Max. 255),Object Size (Max. 900)
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delay(50);
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}
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return 0;
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}
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