Wroom32

[tcpipchip]

Will this example works on Wroom 32 ?
(without psram)
?

[tcpipchip]

How can i disable to use PSRAM on WROOM and use to low resolution image capture ?

See my execution connecting the WROOM to OV5640

I (233) cpu_start: Application information:
I (237) cpu_start: Project name: camera_example
I (243) cpu_start: App version: v2.0.1-3-g8575d75
I (249) cpu_start: Compile time: Jul 8 2022 09:25:44
I (255) cpu_start: ELF file SHA256: 5681d872e29f767a...
I (261) cpu_start: ESP-IDF: v4.4
I (266) heap_init: Initializing. RAM available for dynamic allocation:
I (273) heap_init: At 3FFAE6E0 len 00001920 (6 KiB): DRAM
I (279) heap_init: At 3FFB3E70 len 0002C190 (176 KiB): DRAM
I (285) heap_init: At 3FFE0440 len 00003AE0 (14 KiB): D/IRAM
I (291) heap_init: At 3FFE4350 len 0001BCB0 (111 KiB): D/IRAM
I (298) heap_init: At 4008CF80 len 00013080 (76 KiB): IRAM
I (305) spi_flash: detected chip: generic
I (309) spi_flash: flash io: qio
I (313) cpu_start: Starting scheduler on PRO CPU.
I (0) cpu_start: Starting scheduler on APP CPU.
I (328) gpio: GPIO[25]| InputEn: 1| OutputEn: 0| OpenDrain: 0| Pullup: 1| Pulldown: 0| Intr:2
I (337) cam_hal: cam init ok
I (341) sccb: pin_sda 26 pin_scl 27
I (355) camera: Detected camera at address=0x3c
I (356) ov3660: Mismatch PID=0x5640
I (358) camera: Detected OV5640 camera
I (358) camera: Camera PID=0x5640 VER=0x00 MIDL=0x00 MIDH=0x00
I (1057) esp32 ll_cam: node_size: 2560, nodes_per_line: 1, lines_per_node: 1, dma_half_buffer_min: 2560, dma_half_buffer: 15360, lines_per_half_buffer: 6, dma_buffer_size: 30720, image_size: 153600
I (1064) cam_hal: buffer_size: 30720, half_buffer_size: 15360, node_buffer_size: 2560, node_cnt: 12, total_cnt: 10
I (1075) cam_hal: Allocating 153600 Byte frame buffer in PSRAM
E (1081) cam_hal: cam_dma_config(293): frame buffer malloc failed
E (1088) cam_hal: cam_config(377): cam_dma_config failed
E (1094) camera: Camera config failed with error 0xffffffff
E (1101) example:take_picture: Camera Init Failed

[github-actions]

This issue appears to be stale. Please close it if its no longer valid.

[jayavanth]

Had the same issue. Even if I had disabled PSRAM in the config I was getting this error. I added this line to camera_config and I was able to get past this issue

.fb_location = CAMERA_FB_IN_DRAM,

However, I'm facing a new issue

E (1067) sccb: W [3808]=01 0 fail

E (1068) ov5640: Setting framesize to: 320x240 failed
E (1073) camera: Failed to set frame size
E (1078) example:take_picture: Camera Init Failed

I'm not sure if this problem is related to the PSRAM

[jayavanth]

Solved it! After doing the above, just had to lower the frequency .xclk_freq_hz = 15000000. This is for Waveshare OV5640 Camera Board (B), so it might be different for your board

[tcpipchip]

Are you using esp32 without psram ?

[jayavanth]

Using ESP32-S3 without PSRAM (ESP32-S3-DevKitC-1-N8)

[tcpipchip]

Will work on esp32 wroom kit ?

[jayavanth]

@tcpipchip I don't have a ESP32 WROOM kit, but see if you can give it a try. It might work