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做点阵试验遇到了问题,求解答!

时间:10-02 整理:3721RD 点击:
各位大大好,小编最近做一个点阵的试验,利用STM32驱动MAX7219控制的LED点阵,程序如下,不过点阵全红,不知道问题出在哪了?
#include <reg52.h>
#include <intrins.h>
#define uchar unsigned char
#define uint  unsigned int
//定义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},//国
};
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)写入字节
//入口参数:DATA
//出口参数:无
//说明:
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写入数据
//入口参数:address、dat
//出口参数:无
//说明:
void Write_Max7219(uchar address,uchar dat)
{
     Max7219_pinCS=0;
         Write_Max7219_byte(address);           //写入地址,即数码管编号
     Write_Max7219_byte(dat);               //写入数据,即数码管显示数字
         Max7219_pinCS=1;                        
}
void Init_MAX7219(void)
{
Write_Max7219(0x09, 0x00);       //译码方式:BCD码
Write_Max7219(0x0a, 0x03);       //亮度
Write_Max7219(0x0b, 0x07);       //扫描界限;8个数码管显示
Write_Max7219(0x0c, 0x01);       //掉电模式:0,普通模式:1
Write_Max7219(0x0f, 0x00);       //显示测试:1;测试结束,正常显示: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);
  }  
}
}

32的函数不用库函数些吗?

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