太原理工大学课程设计
INT1:MOV TH1,#0D8H MOV TL1,#0F0H DJNZ 52H,TT1 MOV 52H,#100 DJNZ 53H,TT1 LJMP TT2
TT1:CPL P1.0 RETI TT2: CLR TR1 CLR P1.0 RETI
INT0: CLR TR1 CLR P1.0 MOV SCON, #00H MOV SBUF, #0FFH DL2:JNB TI,DL2 CLR TI
MOV SBUF, #0FFH DL3:JNB TI,DL3 CLR TI RETI
TAB: DB 0C0H,0F9H,0A4H,0B0H,99H; DB 92H,82H,0F8H,80H,90H;
DELAY: MOV R7, #3 DL4: MOV R6,#20 DL5: MOV R5,#250 DL6: DJNZ R5,DL6
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太原理工大学课程设计
DJNZ R6,DL5 DJNZ R7,DL4 RET
附5：病人呼叫器实物图
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太原理工大学课程设计
病人呼叫器实物图
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