温度控制器程序

1、温度控制器程序/PT100自身温度范围#defineM_temper_MIN-200#defineM_temper_MAX500最低温度最高温度/CPU引脚定义#defineP_LEDP0sbitLED_S1=P2八0;sbitLED_S2=P2八1;sbitLED_S3=P2八2;/LED1位选/LED2位选/LED3位选/LED4位选sbitLED_S4=P2八3;sbit KEY_S1 = P1 八 0;上下限温度设置sbitKEY_S2=P1八1;温度加sbitKEY_S3=P1八2;温度减全局变量寄存器ucharM_LED1,M_LED2,M_LED3,M_LED4;/4位LED显示

2、寄存器ucharLED_DISP_TAB口=/LED编码表0X3f,0X06,0X5b,0X4f,0X66,0X6d,0X7d,0X07,0X7f,0X6f,/0-90X40,0X23,0X1c,0X58字符：-nuc；uchar Set_count;uchar T0_count;uint T1_count;char M_temper_up;char M_temper_down;char M_temper_AI;char M_temper_conver;bit B_set,B_set_AI;温度设置按钮计数/T0定时中断计数/T1定时中断计数温度上限温度下限设置中温度当前温度温度设置标志bit

3、B_set_T0,B_set_T1;定时器中断标志函数声明voidT1int_init();/*定时器T1初始化：设置工作方式赋初值开启中断*/voidT0int_init();/*定时器T0初始化：设置工作方式赋初值开启中断*/voidSet_temper();/*设置上下限温度：按键次数=1:显示上限温度并处于操作状态按键次数=2:显示下限温度并处于操作状态按键次数=3:保存设置值并退出*/voidInc_temper();/*提高设置的温度*/voidDec_temper();/*降低设置的温度*/voidLED_data_BCD(charDisp_dat);/*数码管显示温度*/voi

4、dPT100_delay(uintcount);/*PT100延时程序*/voidPT100_reset(void);/*PT100复位初始程序：根据PT100要求对其进行复位初始控制*/bitPT100_readbit(void);/*PT100位读子程序：从PT100取出一位数据*/ucharPT100_readbyte(void);/*PT100字节读子程序:返回数据值*/读出的一字节数据并voidPT100_writebyte(uchardat);/*PT100字节写子程序：将输入参数值写入PT100*/voidPT100_change(void);/启动PT100温度转换ucharP

5、T100_Gettemper(void);/*读取PT100温度数据：单线方式读取PT100转换的温度数据，并返回处理后的温度值*/延时子voidDelay_ms(uintcount);程序：延时count(ms)voidmain()ucharM_temper_curr;SP=0x50;堆栈起始地址M_temper_up=100;初始温度上下限M_temper_down=0;Delay_ms(500);T0int_init();/T0T1初始化T1int_init();while(1)if(B_set_T0)/T0定时读取温度标志EA=0;关总中断B_set_T0=0；if(!B_set)上下

6、限设置状态时，取消温度读取PT100_change();读取温度M_temper_curr=PT100_Gettemper();M_temper_conver=(M_temper_curr>126?(127-M_temper_curr):M_temper_curr);转换正负温度LED_data_BCD(M_temper_conver);转换LED显示EA=1;if(B_set_T1)T1定时LED显示扫描标志TR1=0;B_set_T1=0;+T1_count;switch(T1_count)依次显示4位LEDcase1:LED_S4=1;P_LED=LED_DISP_TABM_LED

7、1;LED_S1=0;break;case 2:LED_S1=1;P_LED=LED_DISP_TABM_LED2;LED_S2=0;break;case 3:LED_S2=1;P_LED=LED_DISP_TABM_LED3;LED_S3=0;break;case 4:LED_S3=1;P_LED=LED_DISP_TABM_LED4;LED_S4=0;T1_count=0;break;TR1=1;开T1定时器if(M_temper_conver>M_temper_down)&&(M_temper_conver<M_temper_up)/温度在上下限范围内BUZZ

8、=B_BUZZ_OFF;RED_ALARM=B_RED_OFF;GREEN_ALARM=B_GREEN_OFF;elseBUZZ=B_BUZZ_ON;if(M_temper_conver<M_temper_down)RED_ALARM=B_RED_ON;低于下限温度elseGREEN_ALARM=B_GREEN_ON;高于上限温度if(!KEY_S1)按键检测Set_temper();/设置温度Delay_ms(200);if(B_set)if(!KEY_S2)Inc_temper();温度加Delay_ms(200);if(!KEY_S3)Dec_temper();温度减Delay_m

9、s(200);voidSet_temper()设置温度+Set_count;B_set=1;设置标志if(Set_count=1)设置上限B_set_AI=0;LED_data_BCD(M_temper_up);M_temper_AI=M_temper_up;将原上限温度取出设置下elseif(Set_count=2)限B_set_AI=1;M_temper_up=M_temper_AI;存入新的上限温度LED_data_BCD(M_temper_down);M_temper_AI将原下限温度取出=M_temper_down;/else确认退出B_set=0;Set_count=0;LED_d

10、ata_BCD(M_temper_conver);M_temper_down存入新的下限温度M_temper_AI;void Inc_temper()温度加if (B_set_AI)限(0)还是下限(1)判断当前是设置上if(M_temper_AI<M_temper_MAX)&&(M_temper_AI<M_temper_up)M_temper_AI+;不能加到上线温度和温度范围elseif(M_temper_AI<M_temper_MAX)M_temper_AI+;LED_data_BCD(M_temper_AI);温度减判断当前是设置voidDec_tem

11、per()if(B_set_AI)上限(0)还是下限(1)if(M_temper_AI>M_temper_MIN)M_temper_AI-;elseif(M_temper_AI>M_temper_MIN)&&(M_temper_AI>M_temper_down)M_temper_AI-;PT100特LED_data_BCD(M_temper_AI);voidPT100_delay(uintcount)定延时uinti;while(count)i=200;while(i>0)count-;voidPT100_reset(void)/PT100复位初始uin

12、ti;DQ=0;i=103;while(i>0)i-;DQ=1;i=4;while(i>0)i-;bitPT100_readbit(void)/PT100位读子程序uinti;bitdat;DQ=1;_nop_();DQ=0;i+;DQ=1;i+;i+;dat=DQ;i=8;while(i>0)i-;return(dat);ucharPT100_readbyte(void)/PT100字节读子程序uchari,j,dat;dat=0;for(i=1;i<=8;i+)j=PT100_readbit();dat=(j<<7)|(dat>>1);把读取

13、的数据一位一位放进去return(dat);voidPT100_writebyte(uchardat)/PT100字节写子程序uinti;ucharj;bittestb;for(j=1；j<=8;j+)testb=dat&0x01;dat=dat>>1;if(testb)/write1(DQ=0;i+;i+;DQ=1;i=8;while(i>0)i-;)elseDQ=0;(/write0i=8;while(i>0)i-;DQ=1;i+;i+;voidPT100_change(void)启动PT100温度转换PT100_reset();PT100_delay

14、(1);PT100_writebyte(0xcc);PT100_wMtebyte(0x44);读取ucharPT100_Gettemper()PT100温度数据uinttemp;ucharM_temper_L=0,M_temper_H=0;PT100_reset();PT100_delay(1);PT100_writebyte(0xcc);PT100_writebyte(0xbe);M_temper_L=PT100_readbyte();M_temper_H=PT100_readbyte();temp=M_temper_H;温度数据处理temp<<=8;temp=temp|M_te

15、mper_L;if(M_temper_H>0xf0)/正(0)负(1)温度值temp=(0x1000-(temp&0x0fff)/16)+127;计算温度elsetemp=temp/16;M_temper_H=temp;returnM_temper_H;voidLED_data_BCD(charDisp_dat)显示数据LED编码处理if(Disp_dat<0)负温度M_LED1=0X0a;/调用第10个M_LED2=(0-Disp_dat)/10;M_LED3=(0-Disp_dat)%10;elseM_LED1=Disp_dat/100;正温度M_LED2=(Disp_

16、dat%100)/10;M_LED3=(Disp_dat%100)%10;if(B_set)/设置状态时显示字符if(B_set_AI)M_LED4=0x0c;elseM_LED4=0x0b;elseM_LED4=0x0d;voidT0int_init()定时器T0初始化TMOD=0X11;TH0=(65536-XTAL/12q0_TIMER)/256;TL0=(65536-XTAL/12叮0_TIMER)%256;EA=1;ET0=1;TR0=1;voidT1int_init()定时器T1初始化TMOD=0X11;TH1=(65536-XTAL/12q1_TIMER)/256;TL1=(65536-XTAL/12叮1_TIMER)%256;EA=1;ET1=1;TR1=1;延时countvoidDelay_ms(uintcount)(ms)uinti;while(-count>0)for(i=0;i<125;i+);voidTimer0()inter