附： 数字温度计程序清单 S1OK EQU 5FH TEMPUTER EQU 39H TEMPH EQU 5EH TEMPL EQU 5DH MS50 EQU 5CH SIGN EQU 5BH
S1 BIT P1.0 S2 BIT P1.1 S3 BIT P1.2 S4 BIT P1.3 ORG 0000H LJMP MAIN ORG 000BH LJMP TOIT ORG 0030H MAIN: MOV SP, #60H MOV TMOD, #01H MOV TH0, #3CH MOV TL0, #0B0H SETB ET0 SETB TR0 SETB EA MOV TEMPH, #30 MOV TEMPL, #9 MOV TEMPUTER, #15 ;温度最始值 MOV S1OK, #00H MOV SIGN, #00H MOV 38H, #0BH MOV 37H, #0CH MOV 36H, #0BH ACALL DISP ACALL T1S ; ***************************************** ; 主程序 START: JB S1, NET1 ACALL T12MS JB S1, NET1 JNB S1, $ INC SIGN MOV A, SIGN CJNE A, #1, TIAO ACALL TIAOTL &
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