GuangGan_LTR_559ALS_辉芒微编程_辉芒微_559ALS_辉芒_源码

#include "FMD.H" #include "FT60F01X.h" #define uchar unsigned char #define uint unsigned int #define ulong unsigned long #define W_addr 0x46 //写操作指令 #define R_addr 0x47 //读操作指令 #define nop() {NOP();NOP();NOP();NOP();NOP();} #define SDA RA2 //IIC数据引脚 #define SCL RA0 //IIC时钟引脚 #define INT RA1 //input mode #define LED RA5 volatile bit b_2ms_t; volatile uint r_4st_off; volatile uint r_4st_on; void Timer0_init(void); void System_init(void); void IIC_Iint(void); void I2C_Start(void); void I2C_Stop(void); void I2C_Ack(void); void I2C_NoAck(void); void I2C_SendByte(uchar bye); uchar I2C_RecByte(void); void I2C_WriteData(uchar W_Addr,uchar W_Data); uchar I2C_RadeData(uchar R_Addr); void INT_LED(void); void main(void) { System_init(); Timer0_init(); IIC_Iint(); I2C_WriteData(0x81,0x03); //设置寄存器0x81 开启PS nop();nop();nop();nop();nop(); I2C_WriteData(0x82,0x7c); nop();nop();nop();nop();nop(); I2C_WriteData(0x83,0x0f); nop();nop();nop();nop();nop(); I2C_WriteData(0x84,0x02); nop();nop();nop();nop();nop(); I2C_WriteData(0x90,0x28); nop();nop();nop();nop();nop(); I2C_WriteData(0x91,0x00); nop();nop();nop();nop();nop(); I2C_WriteData(0x92,0x00); nop();nop();nop();nop();nop(); I2C_WriteData(0x93,0x00); nop();nop();nop();nop();nop(); I2C_WriteData(0x95,0x00); nop();nop();nop();nop();nop(); I2C_WriteData(0x94,0x00); nop();nop();nop();nop();nop(); I2C_WriteData(0x8F,0x01); //设置寄存器0x8F 设置中断 nop();nop();nop();nop();nop(); I2C_WriteData(0x9E,0x70); //设置寄存器0x9E 设置中断 nop();nop();nop();nop();nop(); while(1) { if(b_2ms_t) //2ms { b_2ms_t = 0; INT_LED(); } } } void System_init(void) { OSCCON = 0x51; //4M/2(2T周期指令)=0.5us TRISA = 0x02; //0:output mode 1:input mode PORTA = 0x00; WPUA = 0x00; } void Timer0_init(void) { OPTION = 0x02; //FOSC/4/8=8US TMR0 = 0x06; INTCON = 0xe0; } void interrupt ISR(void) { if(T0IF) { T0IF = 0; TMR0 = 0x06; //250*8=2ms b_2ms_t = 1; } } void IIC_Iint(void) //IIC初始化 { SDA = 1; nop(); SCL = 1; nop(); } void I2C_Start(void) //IIC开始信号 { SDA = 1; nop(); SCL = 1; nop(); SDA = 0; nop(); SCL = 0; nop(); } void I2C_Stop(void) //IIC停止信号 { SDA = 0; nop(); SCL = 1; nop(); SDA = 1; nop(); } void I2C_Ack(void) //IIC应答信号 { SDA = 0; nop(); SCL = 1; nop(); SCL = 0; nop(); } void I2C_NoAck(void) //IIC非应答信号 { SDA = 1; nop(); SCL = 1; nop(); SCL = 0; nop(); } void I2C_SendByte(uchar bye) //发送一个字节 { uchar i; for(i = 0;i < 8;i++) { if(bye & 0x80) {SDA = 1;} else {SDA = 0;} nop(); SCL = 1; nop(); SCL = 0; nop(); bye <<= 1; } } uchar I2C_RecByte(void) //读一个字节 { uchar i; uchar data; TRISA |= 0x04; //读数据，设置输入模式 for(i = 0;i < 8;i++) { SCL = 0; nop(); SCL = 1; nop(); if(SDA) {data |= (0x80 >> i);} } SCL = 0; TRISA &= 0xFB; //读完后切换成输出模式 return data; } void I2C_WriteData(uchar W_Addr,uchar W_Data) //发送数据 { I2C_Start(); //启动信号 I2C_SendByte(W_addr); //写操作 I2C_Ack(); //应答信号 I2C_SendByte(W_Addr); //写地址 I2C_Ack(); I2C_SendByte(W_Data); //写数据 I2C_Ack(); I2C_Stop(); //停止信号 } uchar I2C_RadeData(uchar R_Addr) //读数据 { uchar data; I2C_Start(); I2C_SendByte(W_addr); //写操作 I2C_Ack(); I2C_SendByte(R_Addr); //读地址 I2C_Ack(); I2C_Start(); I2C_SendByte(R_addr); //读操作 I2C_Ack(); data = I2C_RecByte(); I2C_NoAck(); //非应答 I2C_Stop(); return data; } void INT_LED(void) { if(!INT) { r_4st_on = 0; r_4st_off++; if(r_4st_off >= 2100) {r_4st_off = 2099;} if(r_4st_off == 2000) //防止误动作，延时4s灭灯 {LED = 0;} } else { r_4st_off = 0; r_4st_on++; if(r_4st_on >= 510) {r_4st_on = 509;} if(r_4st_on == 500) {LED = 1;} } }