温度控制器程序

1、温度控制器程序/PT100自身温度范围#defi ne M_temper_MIN -200#defi ne M_temper_MAX 500/最低温度/最高温度/CPU引脚定义#defi ne P_LED P0/LED1位选sbit LED_S1 =P2 八 0;sbit LED_S2 =P2 八 1;/LED2位选sbit LED_S3 =P2 八 2;/LED3位选sbit LED_S4 =P2 八 3;/LED4位选sbit KEY_S1 =P1 八 0;上下限温度设sbit KEY_S2 = P1 八 1;温度加sbit KEY_S3 = P1 八 2;温度减全局变量寄存器uchar

2、M_LED1, M_LED2, M_LED3, M_LED4;/4位LED显示寄存器ucharLED_DISP_TAB=/LED编码表0X3f, 0X06, 0X5b,0X4f, 0X66,0X6d, 0X7d, 0X07, 0X7f, 0X6f,/0-90X40, 0X23, 0X1c,；uchar Set_co unt;uchar T0_co unt;uint T1_co unt;char M_temper_up;char M_temper_dow n;char M_temper_AI;char M_temper_c on ver;bit B_set,B_set_AI;温度设置按钮计数/T

3、O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 B_set_T0,B_set_T1;/ 定时器中断标志函数声明void T1i nt_in it();/*定时器T1初始化：设置工作方式赋初值开启中断*/void T0i nt_in it();/*定时器T0初始化：设置工作方式赋初值开启中断*/void Set_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*/void In c_temper();/* 提 高 设 置 的 温 度*/void

4、 Dec_temper();/* 降 低 设*/ void LED_data_BCD(char Disp_dat);/* 数 码 管 显 示*/voidPT100_delay(ui nt cou nt);/*PT100 延 时*/void PT100_reset(void);/*PT100复位初始程序：根据PT100要求对其进 行复位初始控制*/bit PT100_readbit(void);/*PT100位读子程序：从PT100取出一位数据*/uchar PT100_readbyte(void);/*PT100字节读子程序：读出的一字节数据并返回数据值*/void PT100_writeby

5、te(uchar dat);/*PT100字节写子程序：将输入参数值写入PT100*/void PT100_cha nge(void);/启动PT100温度转换uchar PT100_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void Delay_ms(uint count);程序：延时 count (ms)void mai n() uchar M_temper_curr;SP=0x50;堆栈起始地址M_temper_up =100;/ 初始温度上下限M_temper_dow n=0;Delay_ms(500

6、);T0i nt_ini t();/TO T1 初始化T1i nt_in it();while(1)if (B_set_TO)/TO定时读取温度标志EA=0;关总中断B_set_TO=O;if(!B_set)/上下限设置状态时，取消温度读取PT1OO_cha nge();/ 读取温度M_temper_curr=PT1OO_Gettemper();M_temper_c on ver=(M_temper_curr(127-M_temper_curr):M_temper_curr);转换正负温度LED_data_BCD(M_temper_co nver);转换LED显示EA=1;if (B_set_

7、T1)/T1 定时 LED 显示扫描标志TR1=0;B_set_T 仁0;+T1_co unt;switch (T1_count)依次显示 4 位 LED case 1:LED_S4 = 1;P_LED = LED_DISP_TABM_LED1;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_T

8、ABM_LED4;LED_S4 = 0;T1_count = 0;break;TR1=1;/开T1定时器if(M_temper_co nver>M_temper_dow n)&&(M_t emper_c on ver<M_temper_up) / 温度在上下限范围内BUZZ=B_BUZZ_OFF;RED_ALARM=B_RED_OFF;GREEN_ALARM=B_GREEN_OFF;else BUZZ=B_BUZZ_ON;if(M_temper_c on ver<M_temper_dow n)RED_ALARM=B_RED_ON;低于下限温度elseGREEN

9、_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)In c_temper();Delay_ms(200);if (!KEY_S3)Dec_temper();温度加/温度减Delay_ms(200);/设置温度/设置标志/设置上限void Set_temper()+Set_co unt;B_set = 1;if (Set_c ount = 1)B_set_AILED_data_BCD(M_temper_up);M_temper_AI =上限温度取出=M_temp

10、er_up; /将原else if (Set_count限B_set_AI = 1;=2)设置下M_temper_up入新的上限温度=M_temper_AI;/存LED_data_BCD(M_temper_dow n);M_temper_AI将原下限温度取出=M_temper_dow n;/else确认退出B_set = 0;Set_co unt = 0;LED_data_BCD(M_temper_co nver);M_temper_dow n存入新的下限温度M_temper_AI;void In c_temper()温度加if (B_set_AI)判断当前是设置上限(0)还是下限(1)if

11、(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void Dec_temper()if (B_set_AI)上限(0)还是下限if (M_temper_AI > M_temper_MIN) M_temper_AI-;elseif (M_temper_AI > M

12、_temper_MIN)&& (M_temper_AI > M_temper_dow n)M_temper_AI-;LED_data_BCD(M_temper_AI)/PT100 特void PT100_delay(ui nt cou nt)定延时uint i;while(co un t)i=200;while(i>0) count-;void PT100_reset(void)/PT100 复位初始 uint i;DQ=0;i=103;while(i>O)i-;DQ=1;i=4;while(i>0)i-;bit PT100_readbit(void)

13、/PT100 位读子程序uint i;bit dat;DQ=1;_nop_();DQ=O;i+;DQ=1;i+;i+;dat=DQ;i=8;while(i>0)i-;return (dat);uchar PT100_readbyte(void)读子程序uchar i,j,da t;dat=0;for(i=1;i<=8;i+)j=PT100_readbit(); dat=(jv<7)|(dat>>1);位一位放进去 /PT100 字节/把读取的数据return(dat);/PT100 字void PT100_writebyte(uchar dat)节写子程序uint

14、 i;uchar j;bit testb;for(j=1;jv=8;j+)testb=dat&0x01;dat=dat>>1;if(testb) /write 1DQ=O;i+;i+;DQ=1;i=8;while(i>0)i-;elseDQ=0;/write 0i=8;while(i>0)i-;DQ=1;i+;i+;void PT100_change(void) 启动 PT100 温度转换PT100_reset();PT100_delay(1);PT100_writebyte(0xcc);PT100_writebyte(0x44);读取uchar PT100_G

15、ettemper()PT100温度数据uint temp;uchar M_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;数据处理/温度temp<<=8;temp=temp|M_temper_L;if (M_temper_H>OxfO)/正(0)负(1)温度值temp=(0x1000-(te

16、mp&0 x0fff)/16)+127;计算温度elsetemp=temp/16;M_temper_H=temp;return M_temper_H;void LED_data_BCD(char Disp_dat) /显示 数据LED编码处理if (Disp_dat <0)M_LED1 = OXOa;/负温度/ 调M_LED2 =(0-Disp_dat) / 10;M_LED3 =(0-Disp_dat) % 10;用第10个elseM_LED1 = Disp_dat / 100;/正温度M_LED2 = (Disp_dat % 100) / 10;M_LED3 = (Disp_

17、dat % 100) % 10;if (B_set)设置状态时显示字符if (B_set_AI)M_LED4 = 0x0c;elseM_LED4 = OxOb;elseM_LED4 = OxOd;void TOi nt_in it()/定时器TO初始化TMOD = 0X11;THO = (65536-XTAL/12*T0_TIMER) / 256;TLO = (65536-XTAL/12*T0_TIMER)256;EA = 1;ET0 = 1;TR0 = 1;void T1i nt_ini t()定时器T1初始化TMOD = 0X11;TH1 = (65536-XTAL/12*T1_TIMER) / 256;TL1 = (65536-XTAL/12*T1_TIMER)256;EA = 1;ET1 = 1;TR1 = 1;延时countvoid Delay_ms(uint count)(ms) uint i;while(-co un t>0)for (i = 0; i < 125; i+);1 using 1 /TO 定void Timer0() int