esp32-cam-ch340 keeps rebooting

[kratochvil-jan]

I have a couple of esp-32cam-ch340 devices. They are a bit different than the esp32-cam devices referenced in this repo - it has a dedicated USB port right on the board. But it appears it's close enough to work.

I have been able to get the FW running on 6/7 devices. Note that I have flashed an older FW 1.1.1 from November, the latest FW gave me some issues which are not in scope of this issue.

There is this 1 device which is causing me troubles. The red LED doesn't blink with the expected 400ms period.
Running minicom with the device connected, I was able to capture some log - see the end of the post.
Even though I used the recommended baud rate 115200, my minicom session was super unstable - it doesn't hold for more than a couple of seconds, I can't really issue commands this way and so on. Eventually also crashing my xhci driver.

I would welcome some advice how to read the serial port reliably.

I have used the same commands as on the instructions page

$ esptool.py version
esptool.py v4.8.1
4.8.1

Expand the log here

rst:0xc (SW_CPU_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)

configsip: 0, SPIWP:0xee

clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00

mode:DIO, clock div:1

load:0x3fff0030,len:4604

ho 0 tail 12 room 4

load:0x40078000,len:15488

load:0x40080400,len:4

load:0x40080404,len:3180

entry 0x400805b8

E (562) quad_psram: PSRAM ID reX*�ɽ�� 0xffffffff, PSRAM chip not found or not supported

----------------------------------------------------------------

Start MCU!

Prusa ESP32-cam https://prusa3d.cz

SW Version: 1.1.1

Build: Nov 25 2024 23:07:42

----------------------------------------------------------------

Init Logs library

Start init micro-SD Card

Found card. Card Type: SDHC

0000-00-00_00-00-00 - Maximum log file size. File count: 1
0000-00-00_00-00-00 - Init system lib
0000-00-00_00-00-00 - SW Version: 1.1.1 Build: Nov 25 2024 23:07:49
0000-00-00_00-00-00 - Board name: AI Thinker ESP32-CAM
0000-00-00_00-00-00 - CPU reset reason: Software reset via esp_restart
0000-00-00_00-00-00 - CPU0 reset reason: SW_CPU_RESET
0000-00-00_00-00-00 - CPU1 reset reason: SW_CPU_RESET
0000-00-00_00-00-00 - MCU Temperature: 66.67 *C
0000-00-00_00-00-00 - Internal Total heap: 308884 B, Internal Free Heap: 241780
0000-00-00_00-00-00 - PSRAM Total heap: 0 B, PSRAM Free Heap: 0
0000-00-00_00-00-00 - Chip model: ESP32-D0WDQ6-V3, ChipRevision: 301, Cpu Freq: 240
0000-00-00_00-00-00 - SDK Version: v5.1.4-972-g632e0c2a9f-dirty, Core Version: 3.0.7
0000-00-00_00-00-00 - Flash Size: 4194304, Flash Speed 80000000, Flash Mode: 2
0000-00-00_00-00-00 - PSRAM is not used.
0000-00-00_00-00-00 - Init cfg module: 393
0000-00-00_00-00-00 - Read FirstMcuStart FLAG
0000-00-00_00-00-00 - It's not first start MCU: 15
0000-00-00_00-00-00 - web auth enable: 0
0000-00-00_00-00-00 - web auth user: admin
0000-00-00_00-00-00 - web auth pass: ******
0000-00-00_00-00-00 - Load camera CFG from EEPROM
0000-00-00_00-00-00 - Photo quality: 10
0000-00-00_00-00-00 - Framesize: 0
0000-00-00_00-00-00 - Framesize: 0
0000-00-00_00-00-00 - brightness: 0
0000-00-00_00-00-00 - contrast: 0
0000-00-00_00-00-00 - saturation: 0
0000-00-00_00-00-00 - awb: 1
0000-00-00_00-00-00 - awb_gain: 1
0000-00-00_00-00-00 - awb_mode: 0
0000-00-00_00-00-00 - aec2: 0
0000-00-00_00-00-00 - ae_level: 0
0000-00-00_00-00-00 - aec_value: 300
0000-00-00_00-00-00 - gain_ctrl: 1
0000-00-00_00-00-00 - agc_gain: 0
0000-00-00_00-00-00 - bpc: 1
0000-00-00_00-00-00 - wpc: 1
0000-00-00_00-00-00 - raw_gama: 1
0000-00-00_00-00-00 - hmirror: 0
0000-00-00_00-00-00 - vflip: 0
0000-00-00_00-00-00 - lensc: 1
0000-00-00_00-00-00 - exposure_ctrl: 1
0000-00-00_00-00-00 - Camera flash: 0
0000-00-00_00-00-00 - Camera flash time: 200
0000-00-00_00-00-00 - Camera image rotation: 1
0000-00-00_00-00-00 - Load PrusaConnect CFG from EEPROM
0000-00-00_00-00-00 - Token: *
0000-00-00_00-00-00 - Fingerprint: MTYwMjIxMTA4MTEyMjA1MjEyIDAwOjAwOjAwOjAwOjAwOjAw
0000-00-00_00-00-00 - Refresh interval: 30
0000-00-00_00-00-00 - PrusaConnect hostname: connect.prusa3d.com
0000-00-00_00-00-00 - Time lapse function status: 0
0000-00-00_00-00-00 - SSID: 
0000-00-00_00-00-00 - WiFi password: *
0000-00-00_00-00-00 - mDNS: prusa-esp32cam
0000-00-00_00-00-00 - Enable Service AP: 1
0000-00-00_00-00-00 - Network IP method: DHCP
0000-00-00_00-00-00 - Network static IP: 255.255.255.255
0000-00-00_00-00-00 - Network static mask: 255.255.255.255
0000-00-00_00-00-00 - Network static gateway: 255.255.255.255
0000-00-00_00-00-00 - Network static DNS: 255.255.255.255
0000-00-00_00-00-00 - Service AP SSID: ESP32_camera_112.205.212
0000-00-00_00-00-00 - Service AP mode enabled
0000-00-00_00-00-00 - WiFi STA start
0000-00-00_00-00-00 - WiFi AP start
0000-00-00_00-00-00 - Service IP Address: http://192.168.0.1
0000-00-00_00-00-00 - STA IP Method: DHCP
0000-00-00_00-00-00 - WiFi MAC: A0:DD:6C:70:CD:D4
0000-00-00_00-00-00 - Scan WI-FI networks
0000-00-00_00-00-00 - Check available WI-FI network: 
0000-00-00_00-00-00 - WiFi networks scan done
0000-00-00_00-00-00 - 7 networks�ets Jul 29 2019 12:21:46



rst:0x3 (SW_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)