微機(jī)原理-課程設(shè)計(jì)電風(fēng)扇程序設(shè)計(jì)-wenkub.com
2025-07-04 14:02 本頁面
【正文】 總之，理論和實(shí)踐相結(jié)合，更加懂得理論知識是實(shí)踐的基礎(chǔ)。在設(shè)計(jì)時(shí)我們主要是通過用軟件編程的方法來實(shí)現(xiàn)的，其實(shí)有的還可以通過用硬件方法實(shí)現(xiàn)的，比如類型鍵中自然和睡眠的時(shí)間控制可能用8253定時(shí)器來實(shí)現(xiàn)，即硬件來實(shí)現(xiàn)。8255芯片和軟件（編程）結(jié)合使用可以有更靈活的運(yùn)用方法。這次課程設(shè)計(jì)使我對理論和實(shí)踐充分結(jié)合的重要性認(rèn)識更加深刻。強(qiáng)風(fēng)睡眠 MOV FREE_START,CL MOV DX,T8255B OUT DX, AL CALL DELAY CALL DELAY MOV AL,3BH MOV DX,T8255B OUT DX,AL CALL DELAY CALL DELAY CALL DELAY CALL DELAY CALL DELAY CALL DELAY JMP READ L9: MOV SHANGCI_START,09H MOV AL,1BH 。中風(fēng)正常 JMP SHOW L5: MOV SHANGCI_START,05H MOV AL,2DH 。如果沒有按鍵按下，判斷上次狀態(tài) CMP BL,01H JZ L1 CMP BL,02H JZ L2 CMP BL,03H JZ L3 CMP BL,04H JZ L4 CMP BL,05H JZ L5 CMP BL,06H JZ L6 CMP BL,07H JZ L7 CMP BL,08H JZ L8 CMP BL,09H JZ L9 CMP BL,0AH JZ L10 ADD_K1: INC KEY1 MOV AL,KEY1 MOV AH,00H DIV THREE MOV KEY1_YUSHU,AH JMP CONNEC ADD_K2: INC KEY2 MOV AL,KEY2 MOV AH,00H DIV THREE MOV KEY2_YUSHU,AH JMP CONNECT ADD_K3: INC KEY3 MOV AL,KEY3 MOV AH,00H DIV TWO MOV KEY3_YUSHU,AH JMP CONNECT CONNECT: MOV CL,FREE_START MOV AH,KEY1_YUSHU MOV AL,KEY2_YUSHU MOV BL,KEY3_YUSHU CMP BL,00H JZ STOP CMP BL,01H JZ START A1: CMP AX,0000H JZ L1 CMP AX,0001H JZ L2 CMP AX,0002H JZ L3 CMP AX,0100H JZ L4 CMP AX,0101H JZ L5 CMP AX ,0102H JZ L6 CMP AX ,0200H JZ L7 CMP AX , 0201H JZ L8 CMP AX , 0202H JZ L9 STOP: PUSH DX PUSH AX MOV DX,T8255C MOV AL,00H OUT DX,AL POP AX POP DX JMP A1 START: PUSH DX PUSH AX MOV DX,T8255C MOV AL,01H OUT DX,AL POP AX
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