M5stack timer camera error: cam hal: ev-eof-ovf
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Subject: "CAM HAL: EV-EOF-OVF Error – OV3660 Freezing After 5-10 Seconds"
Hi everyone,
I'm using an M5Stack camera with the OV3660 sensor, and I'm experiencing an issue where the camera freezes after 5-10 seconds. The serial monitor repeatedly shows:
CAM HAL: EV-EOF-OVF
After resetting, the camera works for a few seconds but then freezes again with the same error.
My Setup:
Camera Module: M5Stack OV3660
Power Supply: Stable 5V, 2.1A
Firmware: camera web server
Frame Size: UXGA (1600x1200), SVGA (800x600), QVGA (320x240)
PSRAM: Enabled
fb_count: 1 / 2
Troubleshooting I've Tried:
✔ Reduced frame size (tried QVGA, SVGA)
✔ Set fb_location = CAMERA_FB_IN_PSRAM
✔ Adjusted jpeg_quality (tried 10, 12, 15)
✔ Increased fb_count to 2Despite these changes, the CAM HAL: EV-EOF-OVF error still occurs, leading to camera freezes.
Could this be a buffer overflow, PSRAM issue, or something else? Any help would be greatly appreciated!
Thanks in advance.