【正文】 R,0FEFA MOV DPTR,A INC R0 CJNE R0,0FFH,EXIT MOV 22H,00H 0809 采用中斷方式巡回檢測一遍模擬量輸入，并將采集的數據依次存入片外數據存儲器 A0H~A7H 單元，其初始化程序和中斷服務程序如下： 初始化程序： ORG 0000H SJMP STAR ORG 0013H AJMP INTR1 STAR: MOV R0,0A0H MOV R2,08H SETB IN1 SETB EA SETB EX1 MOV DPTR,0FEF8H READ1: MOVX DPTR,A 模糊控制電機軟啟動 21 HERE: SJMP HERE DJNZ R2,READ1 ?? 中斷服務程序： INTR1: MOVX A,DPTR MOVX R0,A INC DPTR INC R0 RET1 其他程序段： 缺相保護專用計算子程序 ZD00: MOV A,DPL L_1222: MOVX DPTR,A NOP NOP NOP SETB NOP L_1229: MOV A,P1 NOP NOP JNB ,L_1229 NOP L_1231: NOP MOVX A,DPTR CLR C SUBB A,80H 模糊控制電機軟啟動 22 JNC L_123A CPL A INC A L_123A: CLR C SUBB A,79H JNC L_1244 SETB F0 RET RET NOP L_1244: CLR F0 RET RET 過流保護專用計算子程序： GL00: MOV A,DPL MOVX DPTR,A SETB NOP NOP L_124F: MOV A,P1 JNB ,L_124F MOVX A,DPTR CLR C SUBB A,5DH JNC L_125E CLR F0 RET RET 模糊控制電機軟啟動 23 L_125E: SETB F0 RET RET NOP NOP L_1264: LJMP L_10E5 NOP L_1268: LJMP ERA NOP PGTO: CLR CLR TF0 JNB ,L_1275 RETI RETI L_1275: NOP JNB ,L_1264 PUSH DPL PUSH DPH PUSH ACC L_127F: PUSH PSW INC 44H MOV A,44H CLR C SUBB A,0AH JC L_128C SETB L_128C: 模糊控制電機軟啟動 24 MOV A,44H CLR C SUBB A,04H JC L_1299 CLR 66H CLR 67H SETB L_1299: MOV A,44H CLR C SUBB A,17H JC L_12A2 SETB L_12A2: MOV A,44H CLR C SUBB A,2EH JC L_12AB SETB L_12AB: MOV A,44H CLR C SUBB A,3DH JC L_12B4 SETB L_12B4: MOV A,44H CLR C SUBB A,4CH JC L_12BD SETB 5CH L_12BD: MOV A,44H 模糊控制電機軟啟動 25 CLR C SUBB A,7AH JC L_12C6 SETB 68H L_12C6: MOV A,44H CLR C SUBB A,0E5H JC L_12CF SETB 5FH L_12CF: MOV DPTR,EFFFH MOVX A,DPTR JB ,L_12E2 MOV A,44H CLR C SUBB A,5CH JC L_12EB SETB LJMP L_12EB L_12E2: MOV A,44H CLR C SUBB A,0F5H JC L_12EB SETB L_12EB: NOP POP PSW POP ACC POP DPH POP DPL RETI 模糊控制電機軟啟動 26 RETI LJMP ERA NOP L_12FA: NOP PUSH ACC PUSH PSW PUSH DPH PUSH DPL PUSH 30H NOP NOP L_1307: NOP NOP NOP NOP L_130B: NOP MOV 30H,00H NOP L_1310: NOP L_1311: DJNZ 30H,L_1311 NOP L_1315: NOP SETB CLR NOP NOP POP 30H 模糊控制電機軟啟動 27 POP DPL POP DPH POP PSW POP ACC RETI RETI LJMP ERA NOP L_132C: NOP PGINT1: NOP CLR EX1 CLR IE1 JB ,L_138A PUSH ACC PUSH PSW PUSH DPL PUSH DPH CLR RS0 SETB RS1 INC R3 JNB 3CH,L_1374 MOV A,6AH CLR C SUBB A,R2 JNC L_134D CPL A INC A L_134D: ADD A,0F8H JC L_1356 LJMP L_137D 模糊控制電機軟啟動 28 NOP NOP L_1356: CLR C MOV A,R3 L_1358: SUBB A,05H JC L_1369 NOP SETB 5EH MOV DPTR,DFFFH MOV 50H,79H MOV A,50H MOVX DPTR,A NOP L_1369: MOV R3,00H CLR 3CH NOP NOP LJMP L_137D NOP NOP L_1374: MOV R2,6AH SETB 3CH LJMP L_137D NOP NOP L_137D: NOP CLR RS0 CLR RS1 模糊控制電機軟啟動 29 POP DPH POP DPL POP PSW POP ACC L_138A: NOP CLR SETB SETB EX1 RETI RETI NOP L_1394: MOV 30H,03H L_1397: MOV 31H,0FFH L_139A: DJNZ 31H,L_139A DJNZ 30H,L_1397 NOP L_13A1: MOV 30H,0FFH NOP L_13A5: NOP MOV A,P1 JNB ,L_13AF DJNZ