背景

硬件为ESP32-S3 WROOM N16R8 CAM开发板
摄像头为OV2640
开发使用的项目地址为https://github.com/espressif/esp32-camera
开发环境为esp-idf,Linux编译下载加vscode编辑代码
使用的例程为esp32-camera/examples/camera_example
使用的esp-idf版本为v4.4.3

问题&解决

问题1:menuconfig配置

PSRAM需要配置为下图所示

flash需要配置为16m

问题2：引脚配置问题

官方默认配置的CAM_PIN使用会出现不断重启问题，排查后可以发现是引脚配置错误，相应的log如下所示

I (757) spi_flash: detected chip: generic
I (761) spi_flash: flash io: qio
I (765) sleep: Configure to isolate all GPIO pins in sleep state
I (772) sleep: Enable automatic switching of GPIO sleep configuration
I (779) cpu_start: Starting scheduler on PRO CPU.
I (0) cpu_start: Starting scheduler on APP CPU.
I (794) spiram: Reserving pool of 32K of internal memory for DMA/internal allocations
Guru Meditation Error: Core  0 panic'ed (LoadProhibited). Exception was unhandled.

Core  0 register dump:
PC      : 0x4200f502  PS      : 0x00060830  A0      : 0x82006fc6  A1      : 0x3fcf3a40  
0x4200f502: ll_cam_set_pin at /home/li/LocalWare/esp32-camera/target/esp32s3/ll_cam.c:370

A2      : 0x3fc99638  A3      : 0x3fc9551c  A4      : 0x3c03a3b0  A5      : 0x3c03a408  
A6      : 0x0000001f  A7      : 0x00000000  A8      : 0x00000000  A9      : 0x00000000  
A10     : 0x00000000  A11     : 0x00000060  A12     : 0x00000008  A13     : 0x00000060  
A14     : 0x60020000  A15     : 0xb81fc000  SAR     : 0x00000011  EXCCAUSE: 0x0000001c  
EXCVADDR: 0x00000000  LBEG    : 0x400570e8  LEND    : 0x400570f3  LCOUNT  : 0x00000000  

将引脚配置更改为下列内容即可正常使用

#define CAM_PIN_PWDN -1  //power down is not used
#define CAM_PIN_RESET -1 //software reset will be performed
#define CAM_PIN_XCLK 15
#define CAM_PIN_SIOD 4
#define CAM_PIN_SIOC 5

#define CAM_PIN_D7      11
#define CAM_PIN_D6      9
#define CAM_PIN_D5      8
#define CAM_PIN_D4      10
#define CAM_PIN_D3      12
#define CAM_PIN_D2      18
#define CAM_PIN_D1      17
#define CAM_PIN_D0      16

#define CAM_PIN_VSYNC   6
#define CAM_PIN_HREF    7
#define CAM_PIN_PCLK    13

问题3:分辨率设置问题

问题现象:

E (953) cam_hal: FB-SIZE: 0 != 3840000
E (956) cam_hal: FB-SIZE: 0 != 3840000
I (1035) app_main: Taking picture...
W (1408) cam_hal: FB-OVF
I (1430) app_main: Picture taken! Its size was: 3840000 bytes
cam_hal: EV-VSYNC-OVF
cam_hal: EV-VSYNC-OVF
cam_hal: EV-VSYNC-OVF
cam_hal: EV-VSYNC-OVF
cam_hal: EV-VSYNC-OVF
cam_hal: EV-VSYNC-OVF
cam_hal: EV-VSYNC-OVF
I (6430) app_main: Taking picture...

产生原因:由于主控使用了esp32s3，摄像头使用了ov2640.原版代码主控为esp32，摄像头为ov2640.故调整了分辨率为FRAMESIZE_UXGA（1600x1200)后出现该问题。
实测使用一下配置ov2640分辨率最高支持到FRAMESIZE_SXGA（1280x1024）

//XCLK 20MHz or 10MHz for OV2640 double FPS (Experimental)
    .xclk_freq_hz = 20000000,
    .ledc_timer = LEDC_TIMER_0,
    .ledc_channel = LEDC_CHANNEL_0,

    .pixel_format = PIXFORMAT_RGB565, //YUV422,GRAYSCALE,RGB565,JPEG
    .frame_size = FRAMESIZE_UXGA,    //QQVGA-UXGA, For ESP32, do not use sizes above QVGA when not JPEG. The performance of the ESP32-S series has improved a lot, but JPEG mode always gives better frame rates.

    .jpeg_quality = 12, //0-63, for OV series camera sensors, lower number means higher quality
    .fb_count = 1,       //When jpeg mode is used, if fb_count more than one, the driver will work in continuous mode.
    .fb_location = CAMERA_FB_IN_PSRAM,
    .grab_mode = CAMERA_GRAB_WHEN_EMPTY,

后续有遇到其他问题还会补充到这个文档中。

参考内容

问题1解决参考:https://blog.csdn.net/Ender_LJY/article/details/139236037
问题2解决参考:https://blog.csdn.net/whhskkaka/article/details/142553523
非常感谢上述文章作者所提供的帮助。