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MAX7219点阵模块+控制模块+单片机模块+显示模块杜邦线5根
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MAX7219原理图：
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5 f" ]$ M( A7 Z* G2 R7 ~单片机源程序：- e( C( L) l c3 C- @/ L, _* P$ A
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#include <reg52.h>
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#include <intrins.h>
& q- i8 _0 h2 y i#define uchar unsigned char
5 U5 u& ?7 e+ E9 v#define uint unsigned int
* \% ~0 b7 \( T/ }//定义Max7219端口
* y4 l/ p3 f/ O. K& A7 Fsbit Max7219_pinCLK = P2^2;
) p1 Z. \' }; X. _) ?9 l% F9 @6 J& jsbit Max7219_pinCS = P2^1;
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sbit Max7219_pinDIN = P2^0;
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uchar code disp1[38][8]={
3 r9 p/ ]8 v; n; s" }{0x3C,0x42,0x42,0x42,0x42,0x42,0x42,0x3C},//0
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{0x10,0x18,0x14,0x10,0x10,0x10,0x10,0x10},//1
# J/ {/ h0 [; b# o: n% k{0x7E,0x2,0x2,0x7E,0x40,0x40,0x40,0x7E},//2
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{0x3E,0x2,0x2,0x3E,0x2,0x2,0x3E,0x0},//3
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{0x8,0x18,0x28,0x48,0xFE,0x8,0x8,0x8},//4
, O2 ~- H8 T& r$ `{0x3C,0x20,0x20,0x3C,0x4,0x4,0x3C,0x0},//5
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{0x3C,0x20,0x20,0x3C,0x24,0x24,0x3C,0x0},//6
1 C( y/ Q4 F: W{0x3E,0x22,0x4,0x8,0x8,0x8,0x8,0x8},//7
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{0x0,0x3E,0x22,0x22,0x3E,0x22,0x22,0x3E},//8
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{0x3E,0x22,0x22,0x3E,0x2,0x2,0x2,0x3E},//9
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{0x8,0x14,0x22,0x3E,0x22,0x22,0x22,0x22},//A
/ r6 R+ `1 }- ]* ]+ h% x- w{0x3C,0x22,0x22,0x3E,0x22,0x22,0x3C,0x0},//B
# _2 e3 D* A; @* C S. k* L4 C9 P{0x3C,0x40,0x40,0x40,0x40,0x40,0x3C,0x0},//C
9 I8 \5 ^/ P( N# U2 e3 i! ?{0x7C,0x42,0x42,0x42,0x42,0x42,0x7C,0x0},//D
- E3 \, C" A; s1 j3 W* j# i{0x7C,0x40,0x40,0x7C,0x40,0x40,0x40,0x7C},//E
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{0x7C,0x40,0x40,0x7C,0x40,0x40,0x40,0x40},//F
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{0x3C,0x40,0x40,0x40,0x40,0x44,0x44,0x3C},//G
T. ~4 ^5 L0 h; t. Q4 z{0x44,0x44,0x44,0x7C,0x44,0x44,0x44,0x44},//H
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{0x7C,0x10,0x10,0x10,0x10,0x10,0x10,0x7C},//I
- B/ g. v1 T" z. y- @/ y" X{0x3C,0x8,0x8,0x8,0x8,0x8,0x48,0x30},//J
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{0x0,0x24,0x28,0x30,0x20,0x30,0x28,0x24},//K
% _7 z* w( C t- M' V: n{0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x7C},//L
+ j; T7 [* J8 m D/ j T+ e{0x81,0xC3,0xA5,0x99,0x81,0x81,0x81,0x81},//M
( m( J+ N7 V. M6 Q, \' f) _{0x0,0x42,0x62,0x52,0x4A,0x46,0x42,0x0},//N
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{0x3C,0x42,0x42,0x42,0x42,0x42,0x42,0x3C},//O
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{0x3C,0x22,0x22,0x22,0x3C,0x20,0x20,0x20},//P
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{0x1C,0x22,0x22,0x22,0x22,0x26,0x22,0x1D},//Q
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{0x3C,0x22,0x22,0x22,0x3C,0x24,0x22,0x21},//R
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{0x0,0x1E,0x20,0x20,0x3E,0x2,0x2,0x3C},//S
$ y8 A4 s x% j9 {; Z5 M{0x0,0x3E,0x8,0x8,0x8,0x8,0x8,0x8},//T
9 B" B5 F. |7 j" @# e# |; w7 H# r{0x42,0x42,0x42,0x42,0x42,0x42,0x22,0x1C},//U
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{0x42,0x42,0x42,0x42,0x42,0x42,0x24,0x18},//V
, p" P0 W b$ a! I! n{0x0,0x49,0x49,0x49,0x49,0x2A,0x1C,0x0},//W
) Q) d: D6 U/ W! X6 {9 z {{0x0,0x41,0x22,0x14,0x8,0x14,0x22,0x41},//X
' u0 Y/ a# J' E{0x41,0x22,0x14,0x8,0x8,0x8,0x8,0x8},//Y
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{0x0,0x7F,0x2,0x4,0x8,0x10,0x20,0x7F},//Z
* E/ `! k4 _% X' v5 B) J! O, p{0x8,0x7F,0x49,0x49,0x7F,0x8,0x8,0x8},//中
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{0xFE,0xBA,0x92,0xBA,0x92,0x9A,0xBA,0xFE},//国
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};
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void Delay_xms(uint x)
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{
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for(i=0;i<x;i++)
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for(j=0;j<112;j++);
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}
2 ?; t& O. a/ k//--------------------------------------------
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//功能：向MAX7219(U3)写入字节
) r* H4 ~) ?/ l8 w9 r//入口参数：DATA
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//出口参数：无
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//说明：
' }& u8 L4 I! h0 V, `% o$ dvoid Write_Max7219_byte(uchar DATA)
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{
1 n$ G5 m4 @2 d( q uchar i;
* D T+ {( f5 w. @9 k. c/ x( o Max7219_pinCS=0;
$ U, S" I2 U1 w$ O for(i=8;i>=1;i--)
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{
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Max7219_pinCLK=0;
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Max7219_pinDIN=DATA&0x80;
" W$ d' k- A3 d) A DATA=DATA<<1;
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Max7219_pinCLK=1;
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}
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//-------------------------------------------
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//功能：向MAX7219写入数据
; H3 w0 l5 D5 }5 ] q& h! W//入口参数：address、dat
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//出口参数：无
( s, @+ y! g; W+ B. A( G( f7 y//说明：
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void Write_Max7219(uchar address,uchar dat)
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{
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Max7219_pinCS=0;
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Write_Max7219_byte(address); //写入地址，即数码管编号
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Write_Max7219_byte(dat); //写入数据，即数码管显示数字
/ [) |" S. J! v9 ~ Max7219_pinCS=1;
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}
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void Init_MAX7219(void)
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{
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Write_Max7219(0x09, 0x00); //译码方式：BCD码
8 |( x* j; Q- F P5 O6 C( o Write_Max7219(0x0a, 0x03); //亮度
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Write_Max7219(0x0b, 0x07); //扫描界限；8个数码管显示
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Write_Max7219(0x0c, 0x01); //掉电模式：0，普通模式：1
$ V$ _6 @# l: V. Z6 w" \! `8 E Write_Max7219(0x0f, 0x00); //显示测试：1；测试结束，正常显示：0
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}
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3 Y6 {3 x9 |+ K5 K! j. J9 l…………限于本文篇幅 余下代码请从论坛下载附件…………
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发表于 2018-11-27 09:34
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