计算机控制技术课程设计报告-电阻炉温度控制系统设计

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MOV TH1,#0FFH SETB PI1 SETB TR1 SETB ET1 RET 采样子程序

SWAP: MOV R0,#20H SAW1: MOV DLY: DJNZ R2,DLY ;HERE: JB 数字滤波

CMP1: JNC CMP2: MOV

CMP3: JC

CMP4: MOV

.

MOV R1,#03H

DPTR,#7FF8H

MOVX @DPTR A ；A/D转化 MOV R2,#20H

延时

P3.3 ,HERE

MOV DPTR,#7FF8H

MOVX A,@DPTR ；读转化结果MOV @R0,A INC R0

DJNZ R1,SAM1

RET

FILTER: MOV A, 20H CJNE A,2DH CMP1 AJMP CMP2

CMP2 XCH A,2DH XCH A,2CH

A,2DH

CJNE A,22EH,CMP3 MOV 2AH,A AJMP RR

CMP4

MOV 2AH,A AJMP RR

A,2EH

CJNE A,2CH,CMP5

.

MOV

CMP5: JC

2AH ,A CMP6

AJMP RR

XCH A,2CH

CMP6: MOV 2AH,A RR: RET T1中断

PIT1: CLR GG: CLR

GGG:

.

00H

JB

20H, GGG SETB P1.0 PT1

RETI

SETB P1.1 CLR

20H

AJMP GG

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