lpc1114单片机红外遥控程序

#include"lpc11xx.h"#include"ct.h"#include"ili9325.h"#include"w25q16.h"uint8_tpulse_start=0;//脉冲开始标志uint8_tpulse_bnum=0;//脉冲计数器uint8_tpulse_ok=0;//发现前导码uint8_tkey_repeat=0;//持续按键uint16_ttc_buf=0;uint16_tir_buf[64];//装载用户码和数据码uint8_tuser_code_hi;uint8_tuser_code_lo;uint16_tuser_code;uint8_tkey_code;uint8_tkey_code_lo;uint8_tir_sign;//接收到按键标志uint8_tir_process(void){uint8_ti;uint16_tbuf;for(i=0;i<16;i++){user_code_hi<<=1;buf=ir_buf[i]+ir_buf[++i];if((buf>2100)&&(buf<2450)){user_code_hi+=1;}}for(i=16;i<32;i++){user_code_lo<<=1;buf=ir_buf[i]+ir_buf[++i];if((buf>2100)&&(buf<2450)){user_code_lo+=1;}}for(i=32;i<48;i++){key_code<<=1;buf=ir_buf[i]+ir_buf[++i];if((buf>2100)&&(buf<2450)){key_code+=1;}}for(i=48;i<64;i++){key_code_lo<<=1;buf=ir_buf[i]+ir_buf[++i];if((buf>2100)&&(buf<2450)){key_code_lo+=1;}}if(key_code==(uint8_t)~key_code_lo){user_code=(user_code_hi<<8)+user_code_lo;return1;//正确接收}elsereturn0;}voidTIMER16_1_IRQHandler(void){if((LPC_TMR16B1->IR&0x10)==0x10){tc_buf=LPC_TMR16B1->TC;LPC_TMR16B1->TC=0;if((tc_buf>8500)&&(tc_buf<9500))//如果发现9ms{pulse_start=1;LPC_TMR16B1->IR=0X10;//清CAP0中断位return;}if(pulse_start==1){if((tc_buf>4000)&&(tc_buf<5000))//如果发现4.5ms{pulse_ok=1;LPC_TMR16B1->IR=0X10;//清CAP0中断位pulse_start=0;key_repeat=1;return;}elseif((tc_buf>2000)&&(tc_buf<3000))//如果发现2.5ms{key_repeat++;LPC_TMR16B1->IR=0X10;//清CAP0中断位pulse_start=0;ir_sign=1;return;}}if(pulse_ok==1){ir_buf[pulse_bnum]=tc_buf;pulse_bnum++;if(pulse_bnum==64){pulse_ok=0;pulse_bnum=0;ir_sign=1;}}}LPC_TMR16B1->IR=0X10;//清CAP0中断位}intmain(void){LCD_Init();LCD_Clear(BLUE);W25Q16_Init();IR_Init();POINT_COLOR=WHITE;BACK_COLOR=BLUE;LCD_ShowString(12,12,"红外遥控检测机");LCD_ShowString(12,50,"您拿的红外遥控器用户码是:");LCD_ShowString(12,90,"您刚才按下的键码是：");LCD_ShowString(12,130,"您已经连续按下此键的次数是：");while(1){if((ir_sign==1)&&(ir_process()==1))//接收到一个按键{LCD_ShowNum(50,70,user_code,5);LCD_ShowNum(50,110,key_code,3);LCD_ShowNum(50,150,key_repeat,3);ir_sign=0;}}}