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標題: 單片機+MAX7219點陣驅動程序+電路原理圖 [打印本頁]

作者: 15525118243 時間: 2018-12-17 09:46
標題: 單片機+MAX7219點陣驅動程序+電路原理圖
電路原理圖如下：

#include <reg52.h>
#include <intrins.h>
#define uchar unsigned char
#define uint  unsigned int
//定義Max7219端口
sbit Max7219_pinCLK = P2^2;
sbit Max7219_pinCS  = P2^1;
sbit Max7219_pinDIN = P2^0;
uchar code disp1[38][8]={
{0x3C,0x42,0x42,0x42,0x42,0x42,0x42,0x3C},//0
{0x10,0x18,0x14,0x10,0x10,0x10,0x10,0x10},//1
{0x7E,0x2,0x2,0x7E,0x40,0x40,0x40,0x7E},//2
{0x3E,0x2,0x2,0x3E,0x2,0x2,0x3E,0x0},//3
{0x8,0x18,0x28,0x48,0xFE,0x8,0x8,0x8},//4
{0x3C,0x20,0x20,0x3C,0x4,0x4,0x3C,0x0},//5
{0x3C,0x20,0x20,0x3C,0x24,0x24,0x3C,0x0},//6
{0x3E,0x22,0x4,0x8,0x8,0x8,0x8,0x8},//7
{0x0,0x3E,0x22,0x22,0x3E,0x22,0x22,0x3E},//8
{0x3E,0x22,0x22,0x3E,0x2,0x2,0x2,0x3E},//9
{0x8,0x14,0x22,0x3E,0x22,0x22,0x22,0x22},//A
{0x3C,0x22,0x22,0x3E,0x22,0x22,0x3C,0x0},//B
{0x3C,0x40,0x40,0x40,0x40,0x40,0x3C,0x0},//C
{0x7C,0x42,0x42,0x42,0x42,0x42,0x7C,0x0},//D
{0x7C,0x40,0x40,0x7C,0x40,0x40,0x40,0x7C},//E
{0x7C,0x40,0x40,0x7C,0x40,0x40,0x40,0x40},//F
{0x3C,0x40,0x40,0x40,0x40,0x44,0x44,0x3C},//G
{0x44,0x44,0x44,0x7C,0x44,0x44,0x44,0x44},//H
{0x7C,0x10,0x10,0x10,0x10,0x10,0x10,0x7C},//I
{0x3C,0x8,0x8,0x8,0x8,0x8,0x48,0x30},//J
{0x0,0x24,0x28,0x30,0x20,0x30,0x28,0x24},//K
{0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x7C},//L
{0x81,0xC3,0xA5,0x99,0x81,0x81,0x81,0x81},//M
{0x0,0x42,0x62,0x52,0x4A,0x46,0x42,0x0},//N
{0x3C,0x42,0x42,0x42,0x42,0x42,0x42,0x3C},//O
{0x3C,0x22,0x22,0x22,0x3C,0x20,0x20,0x20},//P
{0x1C,0x22,0x22,0x22,0x22,0x26,0x22,0x1D},//Q
{0x3C,0x22,0x22,0x22,0x3C,0x24,0x22,0x21},//R
{0x0,0x1E,0x20,0x20,0x3E,0x2,0x2,0x3C},//S
{0x0,0x3E,0x8,0x8,0x8,0x8,0x8,0x8},//T
{0x42,0x42,0x42,0x42,0x42,0x42,0x22,0x1C},//U
{0x42,0x42,0x42,0x42,0x42,0x42,0x24,0x18},//V
{0x0,0x49,0x49,0x49,0x49,0x2A,0x1C,0x0},//W
{0x0,0x41,0x22,0x14,0x8,0x14,0x22,0x41},//X
{0x41,0x22,0x14,0x8,0x8,0x8,0x8,0x8},//Y
{0x0,0x7F,0x2,0x4,0x8,0x10,0x20,0x7F},//Z
{0x8,0x7F,0x49,0x49,0x7F,0x8,0x8,0x8},//中
{0xFE,0xBA,0x92,0xBA,0x92,0x9A,0xBA,0xFE},//國
};
void Delay_xms(uint x)
{
uint i,j;
for(i=0;i<x;i++)
  for(j=0;j<112;j++);
}
//--------------------------------------------
//功能：向MAX7219(U3)寫入字節
//入口參數：DATA
//出口參數：無
//說明：
void Write_Max7219_byte(uchar DATA)
{
   uchar i;
  Max7219_pinCS=0;
   for(i=8;i>=1;i--)
      {
         Max7219_pinCLK=0;
         Max7219_pinDIN=DATA&0x80;
         DATA=DATA<<1;
         Max7219_pinCLK=1;
         }
}
//-------------------------------------------
//功能：向MAX7219寫入數據
//入口參數：address、dat
//出口參數：無
//說明：
void Write_Max7219(uchar address,uchar dat)
{
   Max7219_pinCS=0;
  Write_Max7219_byte(address);          //寫入地址，即數碼管編號
   Write_Max7219_byte(dat);             //寫入數據，即數碼管顯示數字
  Max7219_pinCS=1;
}
void Init_MAX7219(void)
{
Write_Max7219(0x09, 0x00);    //譯碼方式：BCD碼
Write_Max7219(0x0a, 0x03);    //亮度
Write_Max7219(0x0b, 0x07);    //掃描界限；8個數碼管顯示
Write_Max7219(0x0c, 0x01);    //掉電模式：0，普通模式：1
Write_Max7219(0x0f, 0x00);    //顯示測試：1；測試結束，正常顯示：0
}
void main(void)
{
uchar i,j;
Delay_xms(50);
Init_MAX7219();
while(1)
{
  for(j=0;j<38;j++)
  {
for(i=1;i<9;i++)
Write_Max7219(i,disp1[j][i-1]);
Delay_xms(1000);
  }
}
}

MAX7219點陣原理圖.pdf

55.38 KB, 下載次數: 50, 下載積分: 黑幣 -5

作者: PO999999 時間: 2019-8-30 10:19
謝謝分享

作者: system123 時間: 2019-9-26 16:47
有沒有7219的封裝和元件圖啊？

作者: yuche2018 時間: 2020-4-5 14:08
感謝分享學習了

歡迎光臨 (http://m.raoushi.com/bbs/)