📄 单片机试验 i-o并行口直接驱动led显示8.mht
字号:
p;  =
; =20
</SPAN>;</SPAN><SPAN=20
style=3D"FONT-SIZE: 9pt; FONT-FAMILY: 'Arial Unicode MS'; =
mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times =
New Roman'; mso-bidi-font-family: 'Times New =
Roman'">=D1=D3=CA=B1</SPAN><SPAN=20
lang=3DEN-US=20
style=3D"FONT-SIZE: 9pt; mso-fareast-font-family: 'Arial Unicode =
MS'">10ms</SPAN><SPAN=20
style=3D"FONT-SIZE: 9pt; FONT-FAMILY: 'Arial Unicode MS'; =
mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times =
New Roman'; mso-bidi-font-family: 'Times New =
Roman'">=D7=D3=B3=CC=D0=F2</SPAN><SPAN=20
lang=3DEN-US=20
style=3D"FONT-SIZE: 9pt; mso-fareast-font-family: 'Arial Unicode =
MS'"><O:P>=20
</O:P></SPAN></P>
<P class=3DMsoNormal=20
style=3D"LINE-HEIGHT: 12pt; mso-line-height-rule: exactly"><SPAN =
lang=3DEN-US=20
style=3D"FONT-SIZE: 9pt; mso-fareast-font-family: 'Arial Unicode =
MS'">L1:<SPAN=20
style=3D"mso-tab-count: =
4"> &nbs=
p;  =
; =20
</SPAN>MOV R7,#248<O:P> </O:P></SPAN></P>
<P class=3DMsoNormal=20
style=3D"LINE-HEIGHT: 12pt; mso-line-height-rule: exactly"><SPAN =
lang=3DEN-US=20
style=3D"FONT-SIZE: 9pt; mso-fareast-font-family: 'Arial Unicode =
MS'"><SPAN=20
style=3D"mso-tab-count: =
4"> &nbs=
p;  =
; =
=20
</SPAN>DJNZ R7,$<O:P> </O:P></SPAN></P>
<P class=3DMsoNormal=20
style=3D"LINE-HEIGHT: 12pt; mso-line-height-rule: exactly"><SPAN =
lang=3DEN-US=20
style=3D"FONT-SIZE: 9pt; mso-fareast-font-family: 'Arial Unicode =
MS'"><SPAN=20
style=3D"mso-tab-count: =
4"> &nbs=
p;  =
; =
=20
</SPAN>DJNZ R6,L1<O:P> </O:P></SPAN></P>
<P class=3DMsoNormal=20
style=3D"LINE-HEIGHT: 12pt; mso-line-height-rule: exactly"><SPAN =
lang=3DEN-US=20
style=3D"FONT-SIZE: 9pt; mso-fareast-font-family: 'Arial Unicode =
MS'"><SPAN=20
style=3D"mso-tab-count: =
4"> &nbs=
p;  =
; =
=20
</SPAN>RET<O:P> </O:P></SPAN></P>
<P class=3DMsoNormal=20
style=3D"LINE-HEIGHT: 12pt; mso-line-height-rule: exactly"><SPAN =
lang=3DEN-US=20
style=3D"FONT-SIZE: 9pt; mso-fareast-font-family: 'Arial Unicode =
MS'"><SPAN=20
style=3D"mso-tab-count: =
4"> &nbs=
p;  =
; =
=20
</SPAN>END<O:P> </O:P></SPAN></P>
<P class=3DMsoNormal=20
style=3D"LINE-HEIGHT: 12pt; mso-line-height-rule: exactly"><SPAN =
lang=3DEN-US=20
style=3D"FONT-SIZE: 9pt; mso-fareast-font-family: 'Arial Unicode =
MS'"> <O:P>=20
</O:P></SPAN></P>
<P class=3DMsoNormal=20
style=3D"LINE-HEIGHT: 12pt; mso-line-height-rule: exactly"><SPAN =
lang=3DEN-US=20
style=3D"FONT-SIZE: 9pt; mso-fareast-font-family: 'Arial Unicode =
MS'"> <O:P>=20
</O:P></SPAN></P>
<P class=3DMsoNormal=20
style=3D"LINE-HEIGHT: 12pt; mso-line-height-rule: exactly"><SPAN =
lang=3DEN-US=20
style=3D"FONT-SIZE: 9pt; mso-fareast-font-family: 'Arial Unicode =
MS'"> <O:P>=20
</O:P></SPAN></P>
<P class=3DMsoNormal=20
style=3D"LINE-HEIGHT: 12pt; mso-line-height-rule: exactly"><SPAN =
lang=3DEN-US=20
style=3D"FONT-SIZE: 9pt; mso-fareast-font-family: 'Arial Unicode =
MS'"> <O:P>=20
</O:P></SPAN></P>
<P class=3DMsoNormal=20
style=3D"MARGIN-LEFT: 18pt; TEXT-INDENT: -18pt; mso-list: l0 =
level1 lfo3; tab-stops: list 18.0pt"><B=20
style=3D"mso-bidi-font-weight: normal"><I=20
style=3D"mso-bidi-font-style: normal"><SPAN lang=3DEN-US=20
style=3D"FONT-SIZE: 12pt; FONT-FAMILY: =
=D3=D7=D4=B2">7=A3=AE<SPAN=20
style=3D"FONT: 7pt 'Times New Roman'"> </SPAN></SPAN></I></B><B=20
style=3D"mso-bidi-font-weight: normal"><I=20
style=3D"mso-bidi-font-style: normal"><SPAN lang=3DEN-US=20
style=3D"FONT-SIZE: 12pt; FONT-FAMILY: =
=D3=D7=D4=B2">C=D3=EF=D1=D4=D4=B4=B3=CC=D0=F2<O:P>=20
</O:P></SPAN></I></B></P>
<P class=3DMsoNormal=20
style=3D"LINE-HEIGHT: 12pt; mso-line-height-rule: exactly"><SPAN =
lang=3DEN-US style=3D"FONT-SIZE: 9pt">#include =
<AT89X51.H><O:P>=20
</O:P></SPAN></P>
<P class=3DMsoNormal=20
style=3D"LINE-HEIGHT: 12pt; mso-line-height-rule: exactly"><SPAN =
lang=3DEN-US style=3D"FONT-SIZE: 9pt"> <O:P> =
</O:P></SPAN></P>
<P class=3DMsoNormal=20
style=3D"LINE-HEIGHT: 12pt; mso-line-height-rule: exactly"><SPAN =
lang=3DEN-US style=3D"FONT-SIZE: 9pt">unsigned char count;<O:P>=20
</O:P></SPAN></P>
<P class=3DMsoNormal=20
style=3D"LINE-HEIGHT: 12pt; mso-line-height-rule: exactly"><SPAN =
lang=3DEN-US style=3D"FONT-SIZE: 9pt"> <O:P> =
</O:P></SPAN></P>
<P class=3DMsoNormal=20
style=3D"LINE-HEIGHT: 12pt; mso-line-height-rule: exactly"><SPAN =
lang=3DEN-US style=3D"FONT-SIZE: 9pt">void delay10ms(void)<O:P>=20
</O:P></SPAN></P>
<P class=3DMsoNormal=20
style=3D"LINE-HEIGHT: 12pt; mso-line-height-rule: exactly"><SPAN =
lang=3DEN-US style=3D"FONT-SIZE: 9pt">{<O:P> </O:P></SPAN></P>
<P class=3DMsoNormal=20
style=3D"LINE-HEIGHT: 12pt; mso-line-height-rule: exactly"><SPAN =
lang=3DEN-US style=3D"FONT-SIZE: 9pt"><SPAN =
style=3D"mso-spacerun: yes"> =20
</SPAN>unsigned char i,j;<O:P> </O:P></SPAN></P>
<P class=3DMsoNormal=20
style=3D"LINE-HEIGHT: 12pt; mso-line-height-rule: exactly"><SPAN =
lang=3DEN-US style=3D"FONT-SIZE: 9pt"><SPAN =
style=3D"mso-spacerun: yes"> =20
</SPAN>for(i=3D20;i>0;i--)<O:P> </O:P></SPAN></P>
<P class=3DMsoNormal=20
style=3D"LINE-HEIGHT: 12pt; mso-line-height-rule: exactly"><SPAN =
lang=3DEN-US style=3D"FONT-SIZE: 9pt"><SPAN =
style=3D"mso-spacerun: yes"> =20
</SPAN>for(j=3D248;j>0;j--);<O:P> </O:P></SPAN></P>
<P class=3DMsoNormal=20
style=3D"LINE-HEIGHT: 12pt; mso-line-height-rule: exactly"><SPAN =
lang=3DEN-US style=3D"FONT-SIZE: 9pt">}<O:P> </O:P></SPAN></P>
<P class=3DMsoNormal=20
style=3D"LINE-HEIGHT: 12pt; mso-line-height-rule: exactly"><SPAN =
lang=3DEN-US style=3D"FONT-SIZE: 9pt"> <O:P> =
</O:P></SPAN></P>
<P class=3DMsoNormal=20
style=3D"LINE-HEIGHT: 12pt; mso-line-height-rule: exactly"><SPAN =
lang=3DEN-US style=3D"FONT-SIZE: 9pt">void main(void)<O:P> =
</O:P></SPAN></P>
<P class=3DMsoNormal=20
style=3D"LINE-HEIGHT: 12pt; mso-line-height-rule: exactly"><SPAN =
lang=3DEN-US style=3D"FONT-SIZE: 9pt">{<O:P> </O:P></SPAN></P>
<P class=3DMsoNormal=20
style=3D"LINE-HEIGHT: 12pt; mso-line-height-rule: exactly"><SPAN =
lang=3DEN-US style=3D"FONT-SIZE: 9pt"><SPAN =
style=3D"mso-spacerun: yes"> =20
</SPAN>while(1)<O:P> </O:P></SPAN></P>
<P class=3DMsoNormal=20
style=3D"LINE-HEIGHT: 12pt; mso-line-height-rule: exactly"><SPAN =
lang=3DEN-US style=3D"FONT-SIZE: 9pt"><SPAN=20
style=3D"mso-spacerun: yes"> </SPAN>{<O:P>=20
</O:P></SPAN></P>
<P class=3DMsoNormal=20
style=3D"LINE-HEIGHT: 12pt; mso-line-height-rule: exactly"><SPAN =
lang=3DEN-US style=3D"FONT-SIZE: 9pt"><SPAN=20
style=3D"mso-spacerun: yes"> =20
</SPAN>if(P3_7=3D=3D0)<O:P> </O:P></SPAN></P>
<P class=3DMsoNormal=20
style=3D"LINE-HEIGHT: 12pt; mso-line-height-rule: exactly"><SPAN =
lang=3DEN-US style=3D"FONT-SIZE: 9pt"><SPAN=20
style=3D"mso-spacerun: =
yes"> =20
</SPAN>{<O:P> </O:P></SPAN></P>
<P class=3DMsoNormal=20
style=3D"LINE-HEIGHT: 12pt; mso-line-height-rule: exactly"><SPAN =
lang=3DEN-US style=3D"FONT-SIZE: 9pt"><SPAN=20
style=3D"mso-spacerun: =
yes"> =20
</SPAN>delay10ms();<O:P> </O:P></SPAN></P>
<P class=3DMsoNormal=20
style=3D"LINE-HEIGHT: 12pt; mso-line-height-rule: exactly"><SPAN =
lang=3DEN-US style=3D"FONT-SIZE: 9pt"><SPAN=20
style=3D"mso-spacerun: =
yes"> =20
</SPAN>if(P3_7=3D=3D0)<O:P> </O:P></SPAN></P>
<P class=3DMsoNormal=20
style=3D"LINE-HEIGHT: 12pt; mso-line-height-rule: exactly"><SPAN =
lang=3DEN-US style=3D"FONT-SIZE: 9pt"><SPAN=20
style=3D"mso-spacerun: =
yes"> =20
</SPAN>{<O:P> </O:P></SPAN></P>
<P class=3DMsoNormal=20
style=3D"LINE-HEIGHT: 12pt; mso-line-height-rule: exactly"><SPAN =
lang=3DEN-US style=3D"FONT-SIZE: 9pt"><SPAN=20
style=3D"mso-spacerun: =
yes"> &n=
bsp; =20
</SPAN>count++;<O:P> </O:P></SPAN></P>
<P class=3DMsoNormal=20
style=3D"LINE-HEIGHT: 12pt; mso-line-height-rule: exactly"><SPAN =
lang=3DEN-US style=3D"FONT-SIZE: 9pt"><SPAN=20
style=3D"mso-spacerun: =
yes"> &n=
bsp; =20
</SPAN>if(count=3D=3D16)<O:P> </O:P></SPAN></P>
<P class=3DMsoNormal=20
style=3D"LINE-HEIGHT: 12pt; mso-line-height-rule: exactly"><SPAN =
lang=3DEN-US style=3D"FONT-SIZE: 9pt"><SPAN=20
style=3D"mso-spacerun: =
yes"> &n=
bsp; =20
</SPAN>{<O:P> </O:P></SPAN></P>
<P class=3DMsoNormal=20
style=3D"LINE-HEIGHT: 12pt; mso-line-height-rule: exactly"><SPAN =
lang=3DEN-US style=3D"FONT-SIZE: 9pt"><SPAN=20
style=3D"mso-spacerun: =
yes"> &n=
bsp; =20
</SPAN>count=3D0;<O:P> </O:P></SPAN></P>
<P class=3DMsoNormal=20
style=3D"LINE-HEIGHT: 12pt; mso-line-height-rule: exactly"><SPAN =
lang=3DEN-US style=3D"FONT-SIZE: 9pt"><SPAN=20
style=3D"mso-spacerun: =
yes"> &n=
bsp; =20
</SPAN>}<O⌨️ 快捷键说明
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