基于单片机的温度控制系统设计报告

SET_HL: //JNB K4,EXIT

JB K1,KEY4 ACALL DELAY20 JNB K1,$ CPL

;标志位，标志设定高温限值或低温限值

JB ,SET_H JMP SET_L

;-------------调高温限值------------------------- SET_H: KEY3H:

JB K3,KEY2H ACALL DELAY20 JNB K3,$ DEC MOV CJNE

TEMP_TH A,TEMP_TH A,#0,A1

;按下K3，值减1

JNB K2,$ MOV A,TEMP_TH CJNE

A,#99,A0

MOV TEMP_TH,#00 INC TEMP_TH

ACALL DELAY20 ACALL TH_SHAN

;高温限值与低温限值间设定转换

JNB K4,EXIT JB K2,KEY3H

;按下K2，值加1

;光标闪，进入设定

KEY2H: JNB K1,SET_L

A0: ACALL DISP_THL

MOV TEMP_TH,#99 JMP SET_H

A1: ACALL DISP_THL

;-------------调低温限值------------------------------ SET_L:

ACALL TL_SHAN

;高温限值与低温限值间设定转换

KEY2L: JNB K1,SET_H

JNB K4,EXIT JB K2,KEY3L

ACALL DELAY20 JNB K2,$ INC TEMP_TL MOV A,TEMP_TL CJNE

A,#99,A2

MOV TEMP_TL,#00

;按下K3，值减1

;按下K2，值加1

A2: ACALL DISP_THL KEY3L: JB K3,KEY2L

A3: ACALL DISP_THL

JMP SET_L

;K4用于退出设定

ACALL DELAY20 JNB K3,$ DEC TEMP_TL MOV A,TEMP_TL CJNE

A,#0,A3

MOV TEMP_TL,#99

;---------------------- KEY4: JNB K4,EXIT

JMP SET_HL //JMP SET_HL JNB K4,$

EXIT: ACALL DELAY20

MOV LCD,#00001100B ;设置液晶光标不显示、不闪烁 ACALL WR_COMM

;==============温度比较======================================

TEMP_COMP:

MOV A,TEMP_TH SUBB

A,TEMP

ACALL CLR_LCD ACALL DISP_TEMP RET

ACALL DIANJI MOV A,TEMP SUBB RET

A,TEMP_TL

ACALL DIANJI

;============================================ /*MORE: MOV DPTR,#MORE0

MOV LCD,#0CEH ACALL WR_COMM ACALL DISP0 RET

MORE0: DB '>H',0H */

;电机接口是P1低4位，因为是温度传感器的控制口 ;避免冲突，电机接口按位控制 DIANJI: JC DIAN0

RET //ACALL MORE SETB CLR CLR CLR ACALL DELAY CLR SETB CLR SETB CLR SETB //RL DJNZ

A R0,DIAN1

ACALL DELAY

ACALL DELAY

ACALL DELAY

DIAN0: MOV R0,#4 DIAN1:

;=============启动电机========================

CLR CLR CLR CLR RET

DELAY: MOV R5,#5 DLY1: MOV R6,#10 DLY2: MOV R7,#50 CLR_LCD:

ERROR: MOV LCD,#80H

ACALL WR_COMM MOV DPTR,#ERORTAB ACALL DISP0 RET

DB 'INIT ERROR!',0H

MOV LCD,#0C0H ACALL WR_COMM MOV R0,#16 ACALL WR_DATA DJNZ RET

R0,CLR2

MOV LCD,#80H ACALL WR_COMM MOV R0,#16 ACALL WR_DATA DJNZ

R0,CLR1

DJNZ DJNZ DJNZ RET

R7,$ R6,DLY2 R5,DLY1

;============清屏=============================

CLR1: MOV LCD,#' '

CLR2: MOV LCD,#' '

;===============报错============================

ERORTAB: