IRM.rar_IRM 红外_IRM-3638

#include "msp430g2553.h" #define IRIN (P1IN&BIT0) //P1.0红外接收头输入值 #define CS1 P1OUT|=0x08 //P1.3 CS LCD4脚 #define CS0 P1OUT&=~0x08 #define SID1 P1OUT|=0x10 //P1.4 SID LCD5脚 #define SID0 P1OUT&=~0x10 #define SCLK1 P1OUT|=0x20 //P1.5 SCLK LCD6脚 #define SCLK0 P1OUT&=~0x20 __no_init unsigned int ad[3] @ 0x0200;//定义接收缓存的首地址为0x0200 unsigned int redvalue, changnumflag;//ad 存放ADC数据 RED为红外接收值 changnumflag为红外开始设定值的标志位 long T = 0, D = 0, D1 = 0, D2 = 0, add; //T为当前温度 D D1 D2为当前温度 上次当前温度 上上次与预设温度偏差 做PID用 unsigned char dat[4]; int flag = 1, shan = 1; char chushihua[] = {"控制系统 "}; char sheding[] = {"占空比: %"}; char dangqian[] = {"当前电压: V"}; char num[] = {"0123456789"}; //函数声明 void InitSys(); void Initadc(); void Initpwm(); void delay(unsigned char); void delay_1ms(unsigned int); void delay_5us(unsigned int); void display(int, int, int, int); void display_frame(void); void lcdinit(void); void sendbyte(unsigned char); void write_com(unsigned char); void write_data(unsigned char); int main( void ) { int T0 , sethigh = 0, setlow = 0, n1 = 0 ; unsigned char n = 0; unsigned int count; WDTCTL = WDTPW + WDTHOLD; //关闭看门狗 InitSys(); //初始化 Initadc(); Initpwm(); display_frame(); //写入液晶中静态显示部分数据 while (ADC10CTL1 & BUSY); while(1) { if(redvalue == 0) //设定 { shan = 1; n = 0; changnumflag = 0; } if(redvalue == 4) //确定 { T0 = sethigh * 10 + setlow; shan = 0; changnumflag = 0; } if(shan == 1 && changnumflag == 1) //设定值 { n++; if(n == 1) { changnumflag = 0; switch (redvalue) { case 8: sethigh = 0; break; case 12: sethigh = 1; break; case 13: sethigh = 2; break; case 14: sethigh = 3; break; case 16 : sethigh = 4; break; case 17: sethigh = 5; break; case 18: sethigh = 6; break; case 20: sethigh = 7; break; case 21: sethigh = 8; break; case 22: sethigh = 9; break; default: changnumflag = 1; break; } } if(n == 2) { n = 0; changnumflag = 0; switch (redvalue) { case 8: setlow = 0; break; case 12: setlow = 1; break; case 13: setlow = 2; break; case 14: setlow = 3; break; case 16 : setlow = 4; break; case 17: setlow = 5; break; case 18: setlow = 6; break; case 20: setlow = 7; break; case 21: setlow = 8; break; case 22: setlow = 9; break; default: changnumflag = 1; break; } } } n1++; if(n1 == 500) { ADC10CTL0 &= ~ENC; while (ADC10CTL1 & BUSY); // Wait if ADC10 core is active ADC10SA = 0x200; // Data buffer start add = ad[0] + ad[1] + ad[2] ; T = add / 5; ADC10CTL0 |= ENC + ADC10SC; // Sampling and conversion start } n1 = 0; CCR1 = T0; count++; if(count == 30000) //刷新液晶动态显示内容 因要一数字闪烁刷新频率很低 { count = 0; display(shan, sethigh, setlow, T); } } } /***************************************************************************** 系统初始化 ******************************************************************************/ void InitSys() { if (CALBC1_1MHZ == 0xFF || CALDCO_1MHZ == 0xFF) { while(1); // If calibration constants erased // do not load, trap CPU!! } BCSCTL1 = CALBC1_8MHZ; // 设定工作频率为8M DCOCTL = CALDCO_8MHZ; // Set DCO step + modulation */ P2DIR = 0xff; P1DIR &= ~0X01; //红外输入端设定输入 接收头要接上拉电阻(或引脚有内部上拉) P1DIR |= 0x38; P1IE = BIT0; //P1.0中断功能打开 P1IES |= BIT0; //P1.0下降沿触发中断 P1IFG &= ~0x01; //清P1.0中断标志位 _BIS_SR(GIE); //开中断 lcdinit(); //LCD初始化 } void Initadc() { ADC10CTL0 = ADC10SHT_2 + MSC + ADC10ON + ADC10IE; //reference to AVcc ADC10CTL1 = INCH_3 + CONSEQ_1; // A3/A2/A1, single sequence ADC10AE0 |= 0x0E; // P1.3,2,1 ADC10 option select ADC10DTC1 = 0x03; // 3 conversions } void Initpwm() { P1DIR |= 0X04; //P1.4输出PWM P1SEL |= 0X04; CCR0 = 0x0063; // PWM Period CCTL1 = OUTMOD_7; // CCR1 reset/set CCR1 = 0x0063; // CCR1 PWM duty cycle TACTL = TASSEL_2 + MC_1 ; // SMCLK, up mode 8分频+ ID_3 } /***************************************************************************** 端口1中断函数 ******************************************************************************/ #pragma vector=PORT1_VECTOR __interrupt void Port_1() { char j, k, n = 0; if((P1IFG & BIT0) == BIT0) { P1IFG &= ~BIT0; //清除P1.0中断标志 P1IE &= ~BIT0; //关闭P1.0中断功能 delay_1ms(2); if (IRIN == 1) { P1IE |= BIT0; return; } while (!IRIN) //等IR变为高电平，跳过9ms的前导低电平信号。 { delay_5us(28); n++; if(n > 100) { P1IE |= BIT0; return; } } n = 0; for (j = 0; j < 4; j++) { for (k = 0; k < 8; k++) { while (IRIN) //等 IR 变为低电平 { delay_5us(28); } while (!IRIN) //等 IR 变为高电平 { delay_5us(28); } while (IRIN) //计算IR高电平时长 { delay_5us(28); n++; if (n >= 30) { P1IE |= BIT0; return; } } dat[j] = dat[j] >> 1; if (n >= 11) { dat[j] = dat[j] | 0x80; } n = 0; } } if ((dat[2] + dat[3]) != 0xff) {