單片機(jī)課程設(shè)計(jì)簡(jiǎn)易計(jì)算器的設(shè)計(jì)(編輯修改稿)
2025-07-23 09:44 本頁(yè)面
【文章內(nèi)容簡(jiǎn)介】 mov 54h,2fh sjmp test 。接收被操作數(shù)d1: mov a,50h cjne a,0,d2 mov 50h,1 acall start mov p0,8fh acall enable mov r0,2fh mov 2fh,30h mov r6,1 acall write1d2: mov r1,51h mov 54h,3fh sjmp testtest: mov p2,0f0h mov a,p2 anl a,0f0h 。anl :與 cjne a,0f0h,have 。a!=f0, sjmp have sjmp testhave: mov a,0fehnext: mov b,a mov p2,aread: mov a,p2 anl a,0f0h 。a=f0 cjne a,0f0h,yes mov a,b rl a cjne a,0efh,nextyes:acall day mov a,p2 anl a,0f0h cjne a,0f0h,yes1 sjmp testyes1: mov r2,a mov a,b anl a,0fh orl a,r2 。orl 或y0: cjne a,0e7h,y1 ajmp mainy1: cjne a,0d7h,y2 mov b,31h ajmp chay2: cjne a,0b7h,y3 mov b,34h ajmp chay3: cjne a,77h,y4 mov b,37h ajmp chay4: cjne a,0ebh,y5 mov b,30h ajmp chay5: cjne a,0dbh,y6 mov b,32h ajmp chay6: cjne a,0bbh,y7 mov b,35h ajmp chay7: cjne a,7bh,y8 mov b,38h ajmp chay8: cjne a,0edh,y9 cjne r1,50h,y81 cjne @r1,0,y81 ajmp d0y81:mov a,55h cjne a,0,y82 ajmp d0y82:mov a,5ah cjne a,0,y87 mov a,51h cjne a,0,y88 mov 51h,50h mov r0,2fh mov r1,3fh mov r2,10hy83:mov a,@r0 mov @r1,a dec r0 dec r1 djnz r2,y83 mov a,55h cjne a,1,y84 mov a,58h cjne a,0ffh,y87 mov 55h,2 sjmp y87y84:cjne a,2,y88 mov a,58h cjne a,0ffh,y87 mov 55h,1 sjmp y87y88:mov a,55h cjne a,3,y89 sjmp y85y89:cjne a,4,y87y85:mov a,58h cjne a,0ffh,y86 mov 59h,0ffhy86:xrl a,59h mov 58h,ay87:acall suan ajmp d0y9: cjne a,0ddh,ya mov b,33h ajmp chaya: cjne a,0bdh,yb mov b,36h ajmp chayb: cjne a,7dh,yc mov b,39h ajmp chayc: cjne a,0eeh,yd mov a,1 mov 59h,0 push acc acall f sjmp ygyd: cjne a,0deh,ye mov a,2 mov 59h,0 push acc acall f sjmp ygye: cjne a,0beh,yf mov a,3 mov 59h,0 push acc acall f sjmp ygyf: mov a,4 mov 59h,0 push acc acall fyg: pop 55h mov 51h,0 mov r0,30hyg0:mov @r0,0 inc r0 cjne r0,40h,yg0 ajmp d1cha:mov a,56h cjne a,0,cha6 sjmp cha0cha6: cjne @r1,10,cha0 ajmp testcha0: mov 59h,0 。乘法和除法中用 cjne r1,50h,cha2 mov 55h,0 mov 58h,0 mov a,56h cjne a,0,cha2 mov 56h,1 mov 50h,0 mov r0,20hcha1: mov @r0,0 inc r0 cjne r0,30h,cha1cha2: cjne @r1,1,cha3 mov r0,54h cjne @r0,30h,cha3 mov @r0,0 mov @r1,0cha3: cjne r1,51h,cha4 mov 5ah,2cha4: mov r2,8 。重要語(yǔ)句cha5: mov a,54h subb a,r2 mov r0,a mov a,@r0 dec r0 mov @r0,a dec r2 inc r0 mov a,r0 cjne a,54h,cha5 mov r0,54h mov @r0,b acall show ajmp test。f: mov 5ah,0 cjne r1,50h,f3 mov 51h,0 mov r0,30hff: mov @r0,0 inc r0 cjne r0,40h,fff2: pop dpl pop dpl mov dptr,yg push dpl push dph retf3: mov a,51h cjne a,0,f4 sjmp f2f4: acall suan retshow: acall start mov a,8fh subb a,@r1 mov p0,a 。寫(xiě)入顯示起始地址（第一行第一個(gè)位置） acall enable 。調(diào)用寫(xiě)入命令子程序 mov a,54h subb a,@r1 mov r0,a inc @r1 mov a,@r1 mov r6,a acall write1 ret。lcd1602部分start: mov p0,1h 。清屏并光標(biāo)復(fù)位 acall enable 。調(diào)用寫(xiě)入命令子程序 mov p0,8h 。設(shè)置顯示模式:8位2行5x7點(diǎn)陣 acall enable 。調(diào)用寫(xiě)入命令子程序 mov p0,0ch 。顯示器開(kāi)、光標(biāo)關(guān) acall enable 。調(diào)用寫(xiě)入命令子程序 mov p0,6h 。文字不動(dòng),光標(biāo)自動(dòng)右移 acall enable 。調(diào)用寫(xiě)入命令子程序 retenable: clr rs 。寫(xiě)入控制命令的子程序 clr rw clr e acall delay setb e retwrite1: mov a,@r0 lcall write2 。調(diào)用寫(xiě)入數(shù)據(jù)寄存器子程序 inc r0 。取碼指針加1 djnz r6,write1 retwrite2: mov p0,a setb rs 。rs=1 clr rw 。rw=0準(zhǔn)備寫(xiě)入
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