ov2640的pcb半正常，一半显示有问题。

a1059 · 发表于 2020-12-25 15:55:27

问题是这样。我买了ov2640,在测试后出现一个问题：
u8 temp=CAM_ReadReg(0x1c);
if(temp!=0x7f)while(1);
temp=CAM_ReadReg(0x1d);
if(temp!=0xa2)while(1) ;
int i=0;
      for (uint16_t i = 0; i < sizeof(ov2640_uxga_init_reg_tbl)/2; i++)
      {
         CAM_WriteReg(ov2640_uxga_init_reg_tbl[i][0], ov2640_uxga_init_reg_tbl[i][1]);
      }

      for (uint16_t i = 0; i < sizeof(ov2640_rgb565_reg_tbl)/2; i++)
      {
         CAM_WriteReg(ov2640_rgb565_reg_tbl[i][0], ov2640_rgb565_reg_tbl[i][1]);
      }
   OV2640_ImageWin_Set(0,0,1280,960);
ov2640_outsize_set(320,240);
显示图片是正常的
如果把图片设置更改为
   OV2640_ImageWin_Set(0,0,320,240);
ov2640_outsize_set(320,240);

就不正常了