單片機課程設計—電子萬年歷-單片機-文庫吧資料
2025-01-27 08:05本頁面
【正文】 mov r5,20 inc 50h mov a,60h cpl a mov 60h,a mov a,50h cjne a,10,next inc 51h mov 50h,0 mov a,51h cjne a,6,next inc 52h mov a,61h cpl a mov 61h,a mov 51h,0 mov a,52h cjne a,10,next inc 53h mov 52h,0 mov a,53h cjne a,6,next inc 54h 電子萬年歷的設計 16 mov a,62h cpl a mov 62h,a mov 53h,0 mov a,54h cjne a,10,next inc 55h mov 54h,0 mov a,55h cjne a,6,next mov 55h,0 next: ljmp fanhui1 key 暫停 個位加 mov r0,0 mov r1,0 mov r2,0 jb , rel1 call t10ms jnb ,fanhui mov r0,1 mov p1,0feh dec r4 mov a,r4 jnz rel5 mov r4,3 rel5: ljmp t10ms 電子萬年歷的設計 17 rel1: jb ,rel2 call t10ms jnb ,fanhui mov r1,1 ljmp fanhui rel2: jb ,rel3 call t10ms jnb ,fanhui mov r2,1 ljmp fanhui rel3: jb ,fanhui call t10ms jnb ,fanhui mov a,r3 cpl a mov r3,a mov a,r6 cpl a mov r6,a ljmp fanhui t10ms: push 50h push 51h mov 50h,0ffh loop1: mov 51h,0ffh 電子萬年歷的設計 18 nop loop2: nop djnz 51h,loop2 djnz 50h,loop1 pop 51h pop 50h fanhui: ret fanhui1: mov tl0,0b0h mov th0,3ch reti segtab: db 0c0h,0f9h,0a4h,0b0h,99h,92h,82h,0f8h,80h,90h chuanxing: jb ri,loop clr ti ajmp endt loop: mov a,sbuf mov 70h,a clr ri endt: reti t1ms: push 50h push 51h mov 50h,0ffh loop11: 電子萬年歷的設計 19 mov 51h,0ffh nop loop22: nop djnz 51h,loop22 djnz 50h,loop11 pop 51h pop 50h ret end 五 .實驗總結 本次實驗 主要涉及了單片機 I/O 的使用、七段碼 LED 顯示、按鍵識別以及雙機串行通信方面的知識。call t10ms ljmp start shi: mov a,71h cjne a,3,bingxing
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