rst:0x15 (USB_UART_CHIP_RESET)
What it looks like
ESP-ROM:esp32s3-20210327 rst:0x15 (USB_UART_CHIP_RESET),boot:0x8 (SPI_FAST_FLASH_BOOT)
What it means
The chip was reset through its built-in USB port. On the ESP32-S3, C3 and C6, opening the native USB serial port from a serial monitor or the bench can reset the board. It is normal and not a crash.
Likely causes
- Opening or reconnecting the serial monitor on the native USB port.
- An upload tool resetting the board.
How to fix it
- Nothing to fix. Do not read a restart counter or short uptime on this port as evidence of a crash.
- Use the board's UART USB port, if it has one, when you need to watch it without resetting.
Paste your full log
The lines around the error usually say more. Paste everything from the reset to the backtrace and the crash translator explains each part. It runs in your browser; nothing is sent anywhere.
From the hall of flames
- Every time I look, it restarts: Opening the native USB serial port resets the chip. Each new connection from the bench restarts the firmware.