【正文】 ENDP 。除以水位鍵狀態(tài)數(shù) MOV SW,AH MOV AH,0 MOV AL,K3 。除以啟停鍵狀態(tài)數(shù) MOV QT,AH MOV AH,0 MOV AL,K2 。存入當前狀態(tài)值 MOV AH,0 MOV AL,K1 。狀態(tài)設置子程序 ZTSET PROC NEAR MOV AH,0 MOV AL,K0 DIV NUM0 。按下水位設置鍵次數(shù) JMP AJ4 AJ3: INC K3 。按下電源鍵次數(shù) JMP AJ4 AJ1: INC K1 。四個鍵都未按下，重新掃描A1: MOV KEY,0 MOV YANSHI,2000 CALL DELAY JMP KEYUP A2: MOV KEY,1 MOV YANSHI,2000 CALL DELAY JMP KEYUP A3: MOV KEY,2 MOV YANSHI,2000 CALL DELAY JMP KEYUP A4: MOV KEY,3 MOV YANSHI,2000 CALL DELAY KEYUP: MOV AL,0 MOV DX,PORTC IN AL,DX AND AL,0FH CMP AL,0FH JNZ KEYUP MOV YANSHI,2000 CALL DELAYEXIT: RET JPSM ENDP 。水位設置鍵按下 JE A3 CMP AL,07H 。電源鍵按下 JE A1 CMP AL,0DH 。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 。計數(shù)器0計數(shù)初值 MOV DX,JSQ1 MOV AL,JSCZ1 OUT DX,AL 。寫計數(shù)器0控制字 MOV AL,SET41 OUT DX,AL 。C口初始化 OUT DX,EAX MOV DX,PORTB OR AL,00010000B OUT DX,AL POPA RETC8255 ENDP 。A口初始化 OUT DX,EAX MOV DX,PORTB1 MOV EAX,0FFC0C0C0H 。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 。關啟停小燈 JMP S00 MEXIT: JMP MEXIT 。等待啟停鍵按下 MOV DX,PORTB OR AL,00010000B OUT DX,AL 。鍵盤掃描子程序 CALL JPCL CALL ZTSET CMP QT,0 ?？焖傧礈熳映绦? JMP S53S52:MOV XSDK,PORTA2 MOV XSZ,10 CALL XSCL CALL LEDXS CALL SGXD JMP S53 S53: MOV DX,PORTB MOV AL,0 OUT DX,AL 。標準洗滌子程序 JMP S53 S51: CMP XIDI,1 JNE S52 MOV XSDK,PORTA2 MOV XSZ,22 CALL XSCL CALL LEDXS 。啟動指示燈開啟 MOV PACS,AL MOV DX,PORTA OUT DX,AL CMP XIDI,0 JNE S51 。標準洗滌小燈亮 MOV XSDK,PORTA2 MOV XSZ,30 CALL XSCL CALL LEDXS JMP S0S41: CMP XIDI,1 JNE S42 MOV AL,PACS AND AL,10111111B OR AL,00100100B MOV PACS,AL MOV DX,PORTA OUT DX,AL 。第三片8255顯示03，表示高水位 CMP XIDI,0 。是否為標志洗滌，否跳轉 JNE S41 MOV AL,PACS AND AL,11011111B OR AL,01000000B MOV PACS,AL MOV DX,PORTA OUT DX,AL 。查看水位狀態(tài)是否為中 JNE S4 MOV XSDK,PORTA3 MOV XSZ,2 CALL XSCL CALL LEDXS 。標準洗滌小燈亮 MOV XSDK,PORTA2 MOV XSZ,30 CALL XSCL CALL LEDXS JMP S0 。第三片8255顯示01，表示低水位 CMP XIDI,0 。開啟，跳轉 CMP SW,0 。電源指示燈亮 MOV PACS,AL OUT DX,AL MOV DX,PORTC1 MOV EAX,0F000A05H。關LED OUT DX,EAX CALL ZTCS JMP S0 。電源狀態(tài)判斷 JNE S1 。鍵盤處理子程序 CALL ZTSET 。8254初始化子程序S0: CALL JPSM 。狀態(tài)初始子程序S00: CALL C8255 。反轉表TAB DB 0C0H,0F9H,0A4H,0B0H,99H,92H,82H,0F8H,80H,90H 。正轉表。清潔程序設置鍵當前狀態(tài)DATA ENDSCODE SEGMENT USE16 ASSUME CS:CODE, DS:DATA ORG 4000HBEG: JMP START。啟停鍵當前狀態(tài)SW DB ? 。洗滌鍵1種狀態(tài)DY DB ? 。啟停鍵2種狀態(tài) NUM2 DB ? 。洗滌鍵按鍵次數(shù)NUM0 DB ? 。啟停鍵按鍵次數(shù)K2 DB ? 。按鍵狀態(tài)K0 DB ? 。8255控制字，方式0YANSHI DD ? 。470定時1s，計數(shù)器0計數(shù)初值JSCZ1 EQU 100 。8254計數(shù)器0控制字，方式1SET41 EQU 01010100B 。洗滌結束時間PXSJ DB ? 。diret=ffh表示正轉，direct=0表示反轉PACS DB ? 。電機啟停標志BUF db ? count dw ? 。顯示值高位值DWZ DB ? 。LED顯示子程序顯示值SYSJ DB ? 。顯示處理子程序除數(shù)XSDK DW ? 。第一片8255控制口地址PORTK2 EQU 20DH 。第二片8255C口地址PORTA3 EQU 202H 。第二片8255A口地址PORTB2 EQU 205H 。PORTC1 EQU 208H 。計數(shù)器1地址PORTA1 EQU 200H 。8254控制口地址JSQ0 EQU 300H 。三、源程序.486DATA SEGMENT AT 0200H USE16PORTA EQU 320HPORTB EQU 324HPORTC EQU 328HPORTK EQU 32CH 。通過控制啟停來控制整個洗衣過程。按下啟停鍵，這個時候啟停指示燈會亮。然后你可以選擇水位設置鍵設置需要水位，三色LED第三片會顯示01（低水位），02（中水位），03（高水位）。圖6 是標準洗衣的實現(xiàn)流程圖：標準洗衣子程序初始洗衣剩余時間SYSJ=30S，洗滌轉速500，洗滌結束時間XDSJ=18S調(diào)用洗衣第一步洗滌程序漂洗轉速500，漂洗結束時間PXSJ=10S調(diào)用第二步漂洗程序甩干轉速count=100甩干結束