单片机学号显示Word下载.docx

单片机学号显示Word下载.docx

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MOVA,@R0

MOVDPTR,#DSEG1

MOVCA,@A+DPTR

MOVP0,A

ACALLDELAY

DECR0

MOVA,R3

JBACC.7,DLR

RLA

MOVR3,A

AJMPLD0

DSEG1:

DB0C0H,0F9H,0A4H,0B0H,99H,92H,82H,0F8H,80H,90H,88H,83H,0C6H,0A1H,86H,8EH,0FFH,077H

DELAY:

MOVR6,#0AH

LOOP1:

MOVR4,#64H

LOOP2:

NOP

NOP

DJNZR4,LOOP2

DJNZR6,LOOP1

RET

END

开关控制50MS方波

AJMPMAIN

ORG0003H

AJMPLOOP1

MAIN:

MOVTCON,#01H

SETBEA

SETBET0

MOVSP,#30H

JNBP1.0,LOOP

SJMPLOOP2

LOOP:

MOVTMOD,#01H

MOVTH0,#0CFH

MOVTL0,#2CH

SETBTR0

LOOP3:

JNBP1.1,LOOP5

JBCTF0,LOOP4

AJMPLOOP3

LOOP4:

MOVTH0,#0CFH

CPLP1.2

LOOP5:

SETBIE0

CLRP1.2

LOOP6:

SJMPLOOP6

END

双按键控制50MS方波

LCALLDELAY

JNBP1.1,LOOP1

AJMPLOOP6

CLRTR0

CLRP1.2

LCALLDELAY

JNBP1.0,LOOP3

SJMPLOOP5

LOOP7:

LOOP8:

DJNZR4,LOOP8

DJNZR6,LOOP7

双按键控制2:

5方波

LJMPMAIN

LJMPLOOP

ORG0013H

LJMPLOOP5

MOVTMOD,#11H

MOVTCON,#00H

MOVIE,#85H

MOVIP,#05H

SJMP$

MOVIP,#04H

CLREX0

SETBEX1

LCALLFH

MOVTH1,#0B1H

MOVTL1,#0E0H

SETBTR1

JBCTF1,LOOP1

AJMPLOOP2

CPLP1.2

MOVTH0,#8AH

MOVTL0,#0D0H

JBCTF0,LOOP4

AJMPLOOP

MOVIP,#01H

SETBEX0

CLREX1

FH:

RETI

单按键控制2：

JCLOOP5

MOVIE,#81H

SETBC

MOVTH1,#0B1H

CLRC

8255的PC口上4按键4数码管

MOVDPTR,#8003H

MOVA,#81H

MOVX@DPTR,A

KEY:

ACALLKS

JNZLK1

AJMPKEY

LK1:

ACALLDELAY

ACALLKS

JNZLK2

LK2:

MOVDPTR,#8002H

MOVXA,@DPTR

JNBACC.0,LOOP0

JNBACC.1,LOOP1

JNBACC.2,LOOP2

JNBACC.3,LOOP3

LOOP0:

MOVA,#10H

MOVX@DPTR,A

MOVA,#20H

MOVA,#40H

MOVA,#80H

KS:

CPLA

ANLA,#0FH

8255的PA口上输出500us方波

MOVTMOD,#10H

CLRET1

MOVTH1,#0FFH

MOVTL1,#90H

MOVDPTR,#8000H

MOVA,#01H

JBCTF1,LOOP5

AJMPLOOP4

MOVA,#00H

8255置位与复位应用

MOVA,#80H

MOVA,#01H

MOVA,#03H

MOVA,#05H

MOVA,#07H

MOVA,#09H

MOVA,#0BH

MOVA,#0DH

MOVA,#0FH

MOVA,#0EH

MOVA,#0CH

MOVA,#0AH

MOVA,#08H

MOVA,#06H

MOVA,#04H

MOVA,#02H

MOVA,#00H

LJMPLOOP1

MOVR6,#64H

MOVR5,#0AH

DJNZR5,LOOP7

DJNZR6,LOOP6