关于单片机开发板点阵动画用定时器显示有闪烁的问题

ID:1002235 · 发表于 2022-1-16 23:21

我抄了uid:164602大侠的一个ES2.0开发板点阵动画，我将他改成用定时器显示后，画面有严重的闪烁及重影，请高手帮我看看，我的代码哪里有问题？

普中科技ES2.0单片机源程序如下:
#include<reg51.h>
#include<intrins.h>

sbit SRCLK=P3^6;
sbit RCLK=P3^5;
sbit SER=P3^4;
sbit P10=P1^0;

#define LKZ P0

unsigned char code TAB[8]={0x7f,0xbf,0xdf,0xef,0xf7,0xfb,0xfd,0xfe};

unsigned char code XS[17][8]=
{

{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},/*以下是箭头向左移动*/
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x10},
{0x00,0x00,0x00,0x00,0x00,0x00,0x10,0x38},
{0x00,0x00,0x00,0x00,0x00,0x10,0x38,0x38},
{0x00,0x00,0x00,0x00,0x10,0x38,0x38,0x54},
{0x00,0x00,0x00,0x10,0x38,0x38,0x54,0x10},
{0x00,0x00,0x10,0x38,0x38,0x54,0x10,0x10},
{0x00,0x10,0x38,0x38,0x54,0x10,0x10,0x10},
{0x10,0x38,0x38,0x54,0x10,0x10,0x10,0x10},
{0x38,0x38,0x54,0x10,0x10,0x10,0x10,0x00},
{0x38,0x54,0x10,0x10,0x10,0x10,0x00,0x00},
{0x54,0x10,0x10,0x10,0x10,0x00,0x00,0x00},
{0x10,0x10,0x10,0x10,0x00,0x00,0x00,0x00},
{0x10,0x10,0x10,0x00,0x00,0x00,0x00,0x00},
{0x10,0x10,0x00,0x00,0x00,0x00,0x00,0x00},
{0x10,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
};

unsigned int Times;       //为定时器计数，初值为100，产生一个1s的定时
unsigned char i,j,k;

void XP74HC595(unsigned char dat)//向74H595发送一个字节的数据
                                                            //函数名必须由字母开始
{
      unsigned char a;
      SRCLK=0;
      RCLK=0;
      for(a=0;a<8;a++)
      {
            if ((dat<<a)&0x80)//从高位开始发送数据
            {
                     SER=1;
            }
            else
            {
                     SER=0;
            }
            SRCLK=1;
            _nop_();
            _nop_();
            SRCLK=0;
      }

      RCLK=1;
      _nop_();
      _nop_();
      RCLK=0;
}
void DispConfig() {
      i=0;j=0;k=0;

}
void TimerConfig()
{
Times = 1000;
      TMOD = 0x00; //选择工作方式0
TH0 = 0x18;       //设置初始值
TL0 = 0x0fc;
EA = 1;                      //打开总中断
ET0 = 1;                //打开定时器0中断
TR0 = 1;                //启动定时器0
}
void Proc_1S(){
//       P10=!P10;
}

void Proc_Disp_1ms(){
      LKZ=0xff;
      XP74HC595(0x00);
      XP74HC595(XS[ i][j]);[ i]
      LKZ=TAB[j];
      if (j<8) {
            j++;
      } else {
            j=0;
            if (k<50) {
                     k++;
            } else {
                     k=0;
                     if (i<17) {
                              i++;
                     } else {
                              i=0;
                     }
            }
      }
}

void Timer0() interrupt 1
{
      Times--;
            if (Times==0){
                     Times=1000;
                     Proc_1S();
            } else {
                     Proc_Disp_1ms();
         }
}

void main ()
{
      TimerConfig();
            DispConfig();

      while (1)
      {
      }
}

ID:161164 · 发表于 2022-1-17 10:15

void TimerConfig()
{
Times = 1000;
TMOD = 0x01; //选择工作方式1//<<<<<<<<<<<<<<<<<<<<<TH, TL 的值是16位定时器用的
TL0 = 0x18; //设置初始值//<<<<<<<<<<<<<<<<<<<<TH, TL 的值掉转了
TH0 = 0xfc;//<<<<<<<<<<<<<<<<<<<<TH, TL 的值掉转了
EA = 1; //打开总中断
ET0 = 1; //打开定时器0中断
TR0 = 1; //启动定时器0
}
void Proc_1S() {
// P10=!P10;
}
void Proc_Disp_1ms() {
LKZ = 0xff;
// XP74HC595(0x00);//<<<<<<<<<<<<<<<<<<<<595无需清零
XP74HC595(XS[ i][j]);//[ i]
LKZ = TAB[j];
if (j < 7) { //<<<<<<<<<<<<<<<<<<<<小于8，下个循环就会出现XS[ i][8]和TAB[8]
j++;
} else {
j = 0;
if (k < 50) {
k++;
} else {
k = 0;
if (i < 16) { //<<<<<<<<<<<<<<<<<<<<小于17，下个循环就会出现XS[17][8]
i++;
} else {
i = 0;
}
}
}
}
void Timer0() interrupt 1
{
TL0 = 0x18; //设置初始值//<<<<<<<<<<<<<<<<<<<<工作方式1要手动重装
TH0 = 0xfc;//<<<<<<<<<<<<<<<<<<<<
Times--;
if (Times == 0) {
Times = 1000;
Proc_1S();
} else {
Proc_Disp_1ms();
}
}

复制代码

ID:752974 · 发表于 2022-1-17 11:29

显示屏刷新速度慢就有闪烁。

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