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標題: 51單片機點陣無法循環顯示 [打印本頁]

作者: 規劃胡 時間: 2024-9-27 15:36
標題: 51單片機點陣無法循環顯示
仿真圖都正確，也能正常顯示，就是想弄成循環顯示的時候，OLED_ShowCHinese放if里面就無法正常顯示，放外面能顯示但是時間延遲較長，無法調整。有沒有大佬知道怎么回事的！

單片機源程序如下:
#include<reg51.h>
#include<intrins.h>
typedef unsigned int u16;       //對系統默認數據類型進行重定義
typedef unsigned char u8;
#define uchar unsigned char
#define uint unsigned int
sbit  ds1 = P2^1;
sbit  sh_cp1 = P2^0;
sbit  st_cp1 = P2^2;
sbit  ds2 = P2^6;
sbit  sh_cp2 = P2^5;
sbit  st_cp2 = P2^7;
sbit  OE = P2^3;
sbit  e = P2^4;
void Delay_ms(u16 ms)
{

      u16 i,j;
      for(i=ms;i>0;i--)
            for(j=110;j>0;j--);

}
uchar code dat[][16] = {
{0x00,0x00,0x0F,0x08,0x08,0x08,0x08,0xFF,0x08,0x08,0x08,0x08,0x0F,0x00,0x00,0x00},
{0x00,0x00,0xF0,0x20,0x20,0x20,0x20,0xFF,0x20,0x20,0x20,0x20,0xF0,0x00,0x00,0x00},
{0x00,0x7F,0x40,0x48,0x49,0x49,0x49,0x4F,0x49,0x49,0x49,0x48,0x40,0x7F,0x00,0x00},
{0x00,0xFF,0x02,0x12,0x12,0x12,0x12,0xF2,0x12,0x52,0x32,0x12,0x02,0xFF,0x00,0x00},
{0x04,0x08,0x32,0xE2,0x2A,0x2A,0x2A,0x2A,0x2A,0x2A,0x2A,0x2B,0x20,0x20,0x00,0x00},
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xF0,0x0C,0x02,0x0F,0x00},
{0x08,0x10,0x3E,0x52,0xD2,0x53,0x57,0x5A,0x52,0x52,0x72,0x12,0x1E,0x00,0x00,0x00},
{0x02,0x52,0x52,0x94,0xA4,0x28,0x4A,0x91,0x7E,0x20,0x50,0x88,0x04,0x02,0x02,0x00},

{0x10,0x12,0x11,0x10,0x13,0x1C,0x00,0x7F,0x40,0x40,0x4F,0x40,0x40,0x7F,0x00,0x00},
{0x04,0x08,0x30,0xC0,0x20,0x19,0x02,0xC4,0x18,0x60,0x80,0x7E,0x01,0xC1,0x07,0x00},
{0x02,0x02,0x42,0x42,0x42,0x42,0x43,0x42,0x42,0x42,0x42,0x42,0x42,0x02,0x02,0x00},
{0x00,0x04,0x0E,0x14,0x24,0xC4,0x04,0x04,0x04,0x24,0x14,0x0C,0x07,0x00,0x00,0x00},
{0x08,0x06,0x40,0x31,0x00,0x7F,0x40,0x4F,0x40,0x7F,0x00,0x1F,0x00,0xFF,0x00,0x00},
{0x20,0x20,0x7E,0x80,0x01,0xE2,0x0C,0xF0,0x08,0xE4,0x00,0xE2,0x01,0xFE,0x00,0x00},
{0x02,0x02,0x42,0x42,0x42,0x42,0x42,0x7F,0x42,0x42,0x42,0x42,0x42,0x02,0x02,0x00},
{0x01,0x01,0x02,0x04,0x08,0x30,0xC0,0x00,0xC0,0x30,0x08,0x04,0x02,0x01,0x01,0x00},
};
void dat595(uchar as,uchar bs)                                                                                     //向HC595傳入數據
{
      uchar i,b;
      e = 1;
      b = bs;                                                                                                                               //先寫第二個參數，即取模的時候漢字字模的第二排數據（共16個），寫到16*16點陣的下面2個8*8點陣
      for(i = 0; i < 8; i++)
      {
            ds1 = b & 0x01;                                                                                                       //寫參數2的最低位
            sh_cp1 = 0;
            _nop_();_nop_();_nop_();                                                                               //空操作，
            sh_cp1 = 1;
            b >>= 1;                                                                                                             //右移一位
      }
      b = as;
      for(i = 0; i < 8; i++)
      {
            ds1 = b&0x01;
            sh_cp1 = 0;
            _nop_();_nop_();_nop_();
            sh_cp1 = 1;
            b >>= 1;
      }
}
void shuchu()                                                                                                                      //HC595輸出數據
{
      st_cp2 = 0;
      st_cp1 = 0;
      st_cp2 = 1;                                                                                                                //在時鐘上升沿輸出數據
      st_cp1 = 1;                                                                                                                      //在時鐘上升沿輸出數據
}
void suocun()                                                                                                                      //HC595鎖存數據
{
      sh_cp2 = 0;                                                                                                                      //在時鐘上升沿寫入數據
      sh_cp2 = 1;
      ds2 = 1;
}

void OLED_ShowCHinese(uchar f)
{
      uchar j;
      OE = 0 ;
      ds2= 0 ;

      for(j  =0; j < 16; j++)
      {
            dat595(dat[3*f+f][j],dat[3*f+f+1][j]);
            suocun();
            shuchu();
      }
      for(j = 0; j < 16; j++)
      {
            dat595(dat[3*f+f+2][j],dat[3*f+f+3][j]);
            suocun();
            shuchu();
      }
}
void timer0_isr() interrupt 1
{

      static uchar index = 0;
      static uint cp2;
      TH0=0XFC;       //給定時器賦初值，定時1ms
      TL0=0X18;
      cp2++;
      if(cp2 == 100)
      {
            cp2 =0;
            index++;
            if(index >=4)
                     index = 0;
      }OLED_ShowCHinese(index);

}

void init_timer0()
{
      TMOD|=0X01;//選擇為定時器0模式，工作方式1
      TH0=0XFC;       //給定時器賦初值，定時1ms
      TL0=0X18;
      ET0=1;//打開定時器0中斷允許
      EA=1;//打開總中斷
      TR0=1;//打開定時器
}
void main(void)
{

      init_timer0();
      while(1)
      {
      }
}

作者: xianfajushi 時間: 2024-9-27 17:45
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