計(jì)算機(jī)控制課程設(shè)計(jì)--步進(jìn)電機(jī)角度控制(存儲(chǔ)版)
【正文】 IN AL,DX TEST AL,80H JNZ KEY_START CALL KEY6 JMP STTK KEY_START: TEST AL,40H JNZ KEY_SET CALL KEYSTART JMP STTK KEY_SET: MOV AL,0FBH MOV DX,0602H OUT DX,AL MOV DX,0604H IN AL,DX TEST AL,80H JNZ KEY_7 CALL KEYSET JMP STTK KEY_7: TEST AL,40H JNZ KEY_0 CALL KEY7 JMP STTK KEY_0: MOV AL,0F7H MOV DX,0602H OUT DX,AL MOV DX,0604H IN AL,DX TEST AL,80H JNZ KEY_2 CALL KEY0 JMP STTK KEY_2: TEST AL,40H JNZ KEY_NO CALL KEY2 KEY_NO: JMP STTK KEY0: LEA SI,SIGN MOV BL,[SI] CMP BL,01H JNE KEY0_1 CALL LP1 MOV AL,00H MOV [SI+3],AL CALL DISP KEY0_1: RET KEY2: LEA SI,SIGN MOV BL,[SI] CMP BL,01H JNE KEY2_1 CALL LP1 MOV AL,02H MOV [SI+3],AL CALL DISP KEY2_1: RET KEY3: LEA SI,SIGN MOV BL,[SI] CMP BL,01H JNE KEY3_1 CALL LP1 MOV AL,03H MOV [SI+3],AL CALL DISP KEY3_1: RET KEY6: LEA SI,SIGN MOV BL,[SI] CMP BL,01H JNE KEY6_1 CALL LP1 MOV AL,06H MOV [SI+3],AL CALL DISP KEY6_1: RET KEY7: LEA SI,SIGN MOV BL,[SI] CMP BL,01H JNE KEY7_1 CALL LP1 MOV AL,07H MOV [SI+3],AL CALL DISP KEY7_1: RET KEYSET:LEA SI,SIGN MOV BL,01H MOV [SI],BL RET KEYSTART: LEA SI,SIG
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鄂ICP備17016276號(hào)-1