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<DIV style="DISPLAY: inline"><B
id=t_3f84c12d01000b4q>MAX7219芯片驅動程序----pic18fxx2與C51平臺</B><SPAN
class=time>(2007-08-12 10:45:45)</SPAN></DIV></DIV>
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標簽：<A class=tag
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<DIV><FONT color=#0000ff><U> <WBR>PIC18FXX2</U></FONT></DIV>
<DIV> <WBR></DIV>
<DIV><FONT color=#0000ff> <WBR><FONT face=宋體>Max7219.c</FONT></FONT></DIV>
<P><FONT face=宋體
color=#000000>/////////////////////////////////////////////////////////////////////////////////////////////////<BR>//author:qingxiaokun<BR>//version:1.0<BR>//Time:08.8.12am<BR>////////////////////////////////////////////////////////////////////////////////////////////////<BR>#include
"pic18fxx2.h"<BR>#define <WBR> DIN RB5<BR>#define <WBR> CS
RB4<BR>#define CLK RB1</FONT></P>
<P><FONT face=宋體 color=#000000>void delay(unsigned char
i)<BR>{<BR> <WBR>unsigned char
j=0;<BR> <WBR>for(;i>0;i--)<BR> <WBR>{<BR> <WBR> <WBR>for(j=0;j<100;j++)<BR> <WBR> <WBR>{}<BR> <WBR>}<BR>}<BR>/////////////////////////////////////////////////////////////////////////////////////////////<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
//>>數據傳輸格式.<</<BR>void Max7219_Led(unsigned char codes0,unsigned
char codes1)<BR>{<BR> <WBR>unsigned char bitter=0x80,i=0;<BR> <WBR>
CS=0;<BR> <WBR>for(i=0;i<8;i++)<BR> <WBR>{<BR> <WBR> <WBR>if((codes0&bitter)==bitter)<BR> <WBR> <WBR>DIN=1;<BR> <WBR> <WBR>else<BR> <WBR> <WBR>DIN=0;<BR> <WBR> <WBR>CLK=1;<BR> <WBR> <WBR>CLK=0;<BR> <WBR> <WBR>bitter=bitter>>1;<BR> <WBR>}<BR> <WBR>bitter=0x80;<BR> <WBR>for(i=0;i<8;i++)<BR> <WBR>{<BR> <WBR> <WBR>if((codes1&bitter)==bitter)<BR> <WBR> <WBR>DIN=1;<BR> <WBR> <WBR>else<BR> <WBR> <WBR>DIN=0;<BR> <WBR> <WBR>CLK=1;<BR> <WBR> <WBR>CLK=0;<BR> <WBR> <WBR>bitter=bitter>>1;<BR> <WBR>}<BR> <WBR>CS=1;<BR> <WBR>CLK=1;<BR>}<BR>/////////////////////////////////////////////////////////////////////////////////////////////////////////<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
/* <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
通用初始化及顯示八位數碼.0~9,blank,-,H,E,L,P <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
*/ <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR><BR>void
Max7219_Initial()<BR>{<BR> <WBR> Max7219_Led(0xf,1);
//數碼管全點亮，時長10ms;<BR> <WBR> delay(10);<BR> <WBR>
Max7219_Led(0xf,0);<BR> <WBR>
Max7219_Led(0xb,0x7);//數碼官全部可以顯示。<BR> <WBR>
Max7219_Led(0xa,0x6);//數碼官亮度為最大。<BR> <WBR>
Max7219_Led(0x9,0xff);//BCD碼是顯示，每一位代表一個數碼位是否譯碼顯示，但只有四種工作方式：00,01,0f,ff<BR> <WBR>
Max7219_Led(0xc,1);<BR>}<BR>void Max7219_Display(unsigned char
*p)//指針指向一個數量為8的數組.<BR>{<BR> <WBR>unsigned char
i=0;<BR> <WBR>for(i=0;i<8;i++)<BR> <WBR>{<BR> <WBR> <WBR>Max7219_Led(i+1,*p);<BR> <WBR> <WBR>p++;<BR> <WBR>}<BR>}<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
/* <WBR> <WBR> <WBR> <WBR> <WBR>
結束 <WBR> <WBR> <WBR>
*/<BR>/////////////////////////////////////////////////////////////////////////////////////////////////////////<BR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
/* <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR> <WBR>
顯示0~9,a,b,c,d,e,f,-,blank <WBR> <WBR> <WBR> */<BR>void
Max7219_Display_Others(unsigned char t,unsigned char p,unsigned char dp)
//t為要顯示的數碼管位.p為要顯示的值,dp為是否有小數點<BR>{<BR> <WBR>unsigned char
pt=0x80;<BR> <WBR>Max7219_Led(0x9,0x00);<BR> <WBR>if(dp==1)<BR> <WBR>pt=0x80;<BR> <WBR>else<BR> <WBR>pt=0x0;<BR> <WBR>switch
(p)<BR> <WBR>{<BR> <WBR> <WBR>case
0x0:Max7219_Led(t,0xfe|pt);break;<BR> <WBR> <WBR>case
0x1:Max7219_Led(t,0x30|pt);break;<BR> <WBR> <WBR>case
0x2:Max7219_Led(t,0x6d|pt);break;<BR> <WBR> <WBR>case
0x3:Max7219_Led(t,0x79|pt);break;<BR> <WBR> <WBR>case
0x4:Max7219_Led(t,0x33|pt);break;<BR> <WBR> <WBR>case
0x5:Max7219_Led(t,0x5b|pt);break;<BR> <WBR> <WBR>case
0x6:Max7219_Led(t,0x5f|pt);break;<BR> <WBR> <WBR>case
0x7:Max7219_Led(t,0x70|pt);break;<BR> <WBR> <WBR>case
0x8:Max7219_Led(t,0xff|pt);break;<BR> <WBR> <WBR>case
0x9:Max7219_Led(t,0x7b|pt);break;<BR> <WBR> <WBR>case
0xa:Max7219_Led(t,0x77|pt);break;<BR> <WBR> <WBR>case
0xb:Max7219_Led(t,0xf1|pt);break;<BR> <WBR> <WBR>case
0xc:Max7219_Led(t,0x4e|pt);break;<BR> <WBR> <WBR>case
0xd:Max7219_Led(t,0x3d|pt);break;<BR> <WBR> <WBR>case
0xe:Max7219_Led(t,0x4f|pt);break;<BR> <WBR> <WBR>case
0xf:Max7219_Led(t,0x17|pt);break;<BR> <WBR> <WBR>case
'h':Max7219_Led(t,0x37|pt);break;<BR> <WBR> <WBR>case
'l':Max7219_Led(t,0x0e|pt);break;<BR> <WBR> <WBR>case
'p':Max7219_Led(t,0x67|pt);break;<BR> <WBR> <WBR>case '
':Max7219_Led(t,0x00|pt);break;<BR> <WBR> <WBR>case
'-':Max7219_Led(t,0x01|pt);break;<BR> <WBR> <WBR><BR> <WBR>}<BR> <WBR><BR>}<BR>void
Max7219_Display_Others_Char(unsigned char
*p)//指針指向一個數量為8的數組.<BR>{<BR> <WBR>unsigned char
i=0;<BR> <WBR>for(i=0;i<8;i++)<BR> <WBR>{<BR> <WBR> <WBR>Max7219_Display_Others(i+1,*p,0);<BR> <WBR> <WBR>p++;<BR> <WBR>}<BR>}</FONT></P>
<P><FONT face=宋體 color=#0000ff><U>頭文件 <WBR></U></FONT></P>
<P><FONT face=宋體>Max7219.h</FONT></P>
<P><FONT face=宋體 color=#000000><FONT face=宋體>#include "pic18fxx2.h"<BR>#define
RD0 DIN<BR>#define RD1 CS<BR>#define RD2 CLK<BR>void delay(unsigned char
i);<BR>void Max7219_Led(unsigned char codes0,unsigned char codes1);<BR>void
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