玩过TFT彩屏的都进来帮忙找找问题呗

楞伽_山人_3003203

为什么会出现这种情况呢
刷屏时没问题的

int main(void)
{
//       u8 x=0;
      u8 lcd_id[12];                      //´æ·ÅLCD ID×Ö·û´®
      delay_init();                   //ÑÓÊ±º¯Êý³õÊ¼»¯
      NVIC_Configuration();       //ÉèÖÃNVICÖÐ¶Ï·Ö×é2:2Î»ÇÀÕ¼ÓÅÏÈ¼¶£¬2Î»ÏìÓ¦ÓÅÏÈ¼¶
      uart_init(9600);                //´®¿Ú³õÊ¼»¯Îª9600
      LED_Init();                            //LED¶Ë¿Ú³õÊ¼»¯
      LCD_Init();
      POINT_COLOR=RED;
  while(1)
      {
            POINT_COLOR=RED;
            LCD_ShowString(64,0,320,16,16,"ABCDEF");
            delay_ms(1000);
      }
}

void LCD_ShowString(u8 x,u8 y,u8 width,u8 height,u8 size,u8 *p)
{
      u8 x0=x;
      width+=x;
      height+=y;
while((*p<='~')&&(*p>=' '))
{
      if(x>=width){x=x0;y+=size;}
      if(y>=height)break;//ÍË³ö
      LCD_ShowChar(x,y,*p,size,0);
      x+=size/2;
      p++;
}
}
void LCD_ShowChar(u16 x,u16 y,u8 num,u8 size,u8 mode)
{
  u8 temp,t1,t;
      u16 y0=y;
      u16 colortemp=POINT_COLOR;
      //ÉèÖÃ´°¿Ú
      num=num-' ';//µÃµ½Æ«ÒÆºóµÄÖµ
      if(!mode) //·Çµþ¼Ó·½Ê½
      {
         for(t=0;t<size;t++)
         {
                              if(size==12)temp=asc2_1206[num][t];  //µ÷ÓÃ1206×ÖÌå
                              else temp=asc2_1608[num][t];                //µ÷ÓÃ1608×ÖÌå
                              for(t1=0;t1<8;t1++)
                              {
                                             if(temp&0x80)POINT_COLOR=colortemp;
                                             else POINT_COLOR=BACK_COLOR;
                                             LCD_DrawPoint(x,y);
                                             temp<<=1;
                                             y++;
                                             if(x>=lcddev.width){POINT_COLOR=colortemp;return;}//
                                             if((y-y0)==size)
                                             {
                                                      y=y0;
                                                      x++;
                                                      if(x>=lcddev.width){POINT_COLOR=colortemp;return;}//
                                                      break;
                                             }
                              }
         }
      }else
      {
         for(t=0;t<size;t++)
         {
                     if(size==12)temp=asc2_1206[num][t];  //
                     else temp=asc2_1608[num][t];                //
         for(t1=0;t1<8;t1++)
                     {
                  if(temp&0x80)LCD_DrawPoint(x,y);
                              temp<<=1;
                              y++;
                              if(x>=lcddev.height){POINT_COLOR=colortemp;return;}//
                              if((y-y0)==size)
                              {
                                    y=y0;
                                    x++;
                                    if(x>=lcddev.width){POINT_COLOR=colortemp;return;}//
                                    break;
                              }
                     }
         }
      }
      POINT_COLOR=colortemp;
}
void LCD_SetCursor(u16 Xpos, u16 Ypos)
{
      LCD_WR_REG(lcddev.setxcmd);
            LCD_WR_DATA(Xpos>>8);
            LCD_WR_DATA(Xpos&0XFF);
            LCD_WR_REG(lcddev.setycmd);
            LCD_WR_DATA(Ypos>>8);
            LCD_WR_DATA(Ypos&0XFF);
}