0 
  .xclk_freq_hz = 20000000,
  .ledc_timer = LEDC_TIMER_0,
  .ledc_channel = LEDC_CHANNEL_0,
  .pixel_format = PIXFORMAT_JPEG,  //YUV422,GRAYSCALE,RGB565,JPEG
  .frame_size = FRAMESIZE_QVGA,    //QQVGA-UXGA Do not use sizes above QVGA when not JPEG
  .jpeg_quality = 12,  //0-63 lower number means higher quality
  .fb_count = 1,       //if more than one, i2s runs in continuous mode. Use only with JPEG
  .fb_location = CAMERA_FB_IN_PSRAM,
  .grab_mode = CAMERA_GRAB_WHEN_EMPTY,

Esp32 cam is showing

cam_hal : dma overflow

What changes do I need to change to solve this?

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1 Answer 1

Reset to default
2

apparently downgrading to 3.2.0 is the only way around that for now, that or use smaller image sizes.

https://github.com/espressif/esp32-camera/issues/775#issuecomment-3139154070

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2
  • i triend to lower pixel images to 96 X 96 and decrease the xclk also but its giving the same erorr Commented Sep 8 at 7:04
  • Hi Zaheer, you could improve your answer by adding some notes on how to downgrade Commented Nov 23 at 2:17

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