【文章內(nèi)容簡介】 AND AL,11011111B OR AL,01000100B MOV PACS,AL MOV DX,PORTA OUT DX,AL 。標(biāo)準(zhǔn)洗滌小燈亮 MOV XSDK,PORTA2 MOV XSZ,30 CALL XSCL CALL LEDXS JMP S0 。跳回繼續(xù)掃描鍵盤 S3: CMP SW,1 。查看水位狀態(tài)是否為中 JNE S4 MOV XSDK,PORTA3 MOV XSZ,2 CALL XSCL 洗衣機(jī)功能設(shè)計(jì) 第 18 頁 18 CALL LEDXS 。第三片 8255 顯示 02， 表示中水位 CMP XIDI,0 。是否為標(biāo)志洗滌 ， 否跳轉(zhuǎn) JNE S41 MOV AL,PACS AND AL,11011111B OR AL,01000000B MOV PACS,AL MOV DX,PORTA OUT DX,AL 。標(biāo)準(zhǔn)洗滌小燈亮 MOV XSDK,PORTA2 MOV XSZ,30 CALL XSCL CALL LEDXS JMP S0 S4: MOV XSDK,PORTA3 MOV XSZ,3 CALL XSCL CALL LEDXS 。第三片 8255 顯示 03，表示高水位 CMP XIDI,0 。是否為標(biāo)志洗滌，否跳轉(zhuǎn) JNE S41 MOV AL,PACS AND AL,11011111B OR AL,01000000B MOV PACS,AL MOV DX,PORTA OUT DX,AL 。標(biāo)準(zhǔn)洗滌小燈亮 MOV XSDK,PORTA2 MOV XSZ,30 CALL XSCL CALL LEDXS JMP S0 S41: CMP XIDI,1 JNE S42 MOV AL,PACS AND AL,10111111B OR AL,00100100B MOV PACS,AL MOV DX,PORTA OUT DX,AL ?？焖偾鍧嵭袅? MOV XSDK,PORTA2 MOV XSZ,22 洗衣機(jī)功能設(shè)計(jì) 第 19 頁 19 CALL XSCL CALL LEDXS JMP S0 S42: MOV AL,PACS AND AL,11111011B OR AL,01100000B MOV PACS,AL MOV DX,PORTA OUT DX,AL MOV XSDK,PORTA2 MOV XSZ,10 CALL XSCL CALL LEDXS JMP S0 S5: MOV AL,PACS AND AL,11111101B 。啟動(dòng)指示燈開啟 MOV PACS,AL MOV DX,PORTA OUT DX,AL CMP XIDI,0 JNE S51 。是否設(shè)置為標(biāo)準(zhǔn)洗滌程序，否跳轉(zhuǎn) CALL BZXD 。標(biāo)準(zhǔn)洗滌子程序 JMP S53 S51: CMP XIDI,1 JNE S52 MOV XSDK,PORTA2 MOV XSZ,22 CALL XSCL CALL LEDXS 。剩余秒數(shù)顯示 25 CALL KSXD ?？焖傧礈熳映绦? JMP S53 S52:MOV XSDK,PORTA2 MOV XSZ,10 CALL XSCL CALL LEDXS CALL SGXD JMP S53 S53: MOV DX,PORTB MOV AL,0 OUT DX,AL 。蜂鳴器響 S8: CALL JPSM 。鍵盤掃描子程序 CALL JPCL CALL ZTSET 洗衣機(jī)功能設(shè)計(jì) 第 20 頁 20 CMP QT,0 。是否按下啟停鍵 JNE S8 。等待啟停鍵按下 MOV DX,PORTB OR AL,00010000B OUT DX,AL 。關(guān)蜂鳴器 MOV AL,PACS OR AL,00000010B MOV PACS,AL MOV DX,PORTA OUT DX,AL 。關(guān)啟停小燈 JMP S00 MEXIT: JMP MEXIT 。主程序結(jié)束 。8255 初始化程序 C8255 PROC NEAR PUSHA MOV DX,PORTK MOV AL,89H OUT DX,AL MOV DX,PORTK1 MOV EAX,89808080H 。寫控制字 OUT DX,EAX MOV DX,PORTA1 MOV EAX,0FEC0B0C0H 。A 口初始化 OUT DX,EAX MOV DX,PORTB1 MOV EAX,0FFC0C0C0H 。B 口初始化 OUT DX,EAX MOV DX,PORTC1 MOV EAX,0F000A05H 。C 口初始化 OUT DX,EAX MOV DX,PORTB OR AL,00010000B OUT DX,AL POPA RET C8255 ENDP 。8254 初始化子程序 洗衣機(jī)功能設(shè)計(jì) 第 21 頁 21 C8254 PROC NEAR PUSHA MOV DX,PORTK4 MOV AL,SET40 OUT DX,AL 。寫計(jì)數(shù)器 0 控制字 MOV AL,SET41 OUT DX,AL 。寫計(jì)數(shù)器 1 控制字 MOV DX,JSQ0 MOV AX,JSCZ0 OUT DX,AL MOV AL,AH OUT DX,AL 。計(jì)數(shù)器 0 計(jì)數(shù)初值 MOV DX,JSQ1 MOV AL,JSCZ1 OUT DX,AL 。計(jì)數(shù)器 1 計(jì)數(shù)初值 POPA RET C8254 ENDP 。按鍵查詢子程序 JPSM PROC NEAR KSCAN: MOV DX,PORTC IN AL,DX AND AL,0FH CMP AL,0FH JE A5 。無鍵按下 CMP AL,0EH 。電源鍵按下 JE A1 CMP AL,0DH 。啟停鍵按下 JE A2 CMP AL,0BH 。水位設(shè)置鍵按下 JE A3 CMP AL,07H 。洗滌鍵按下 JE A4 A5: MOV KEY,9 JMP EXIT 。四個(gè)鍵都未按下，重新掃描 A1: MOV KEY,0 MOV YANSHI,2020 CALL DELAY JMP KEYUP A2: MOV KEY,1 MOV YANSHI,2020 CALL DELAY 洗衣機(jī)功能設(shè)計(jì) 第 22 頁 22 JMP KEYUP A3: MOV KEY,2 MOV YANSHI,2020 CALL DELAY JMP KEYUP A4: MOV KEY,3 MOV YANSHI,2020 CALL DELAY KEYUP: MOV AL,0 MOV DX,PORTC IN AL,DX AND AL,0FH CMP AL,0FH JNZ KEYUP MOV YANSHI,2020 CALL DELAY EXIT: RET JPSM ENDP 。按鍵處理子程序 JPCL PROC NEAR CMP KEY,9 JE AJ4 CMP KEY,0 JE AJ0 CMP KEY,1 JE AJ1 CMP KEY,2