Unable to put ESP32S3 in UART donwlaod mode

[reinis]

Hi!

I got new board from factory and want to flash it.

Chip I use ESP32-S3-WROOM-1-N8R8




If I just turn the board on I get

Code: Select all

ESP-ROM:esp32s3-20210327
14:11:14.507 -> Build:Mar 27 2021
14:11:14.507 -> rst:0x7 (TG0WDT_SYS_RST),boot:0x2c (SPI_FAST_FLASH_BOOT)
14:11:14.507 -> Saved PC:0x4004568a
14:11:14.507 -> invalid header: 0xa5ff005a
14:11:14.507 -> invalid header: 0xa5ff005a
14:11:14.540 -> invalid header: 0xa5ff005a

When I try to enter in download mode by holding iO0 button and then pressing EN button I get

Code: Select all

ESP-ROM:esp32s3-20210327
14:32:35.402 -> Build:Mar 27 2021
14:32:35.402 -> rst:0x1 (POWERON),boot:0x24 (SPI_FLASH_BOOT)
14:32:35.402 -> invalid header: 0xa5ff005a
14:32:35.402 -> invalid header: 0xa5ff005a
14:32:35.402 -> invalid header: 0xa5ff005a
14:32:35.402 -> invalid header: 0xa5ff005a

What am I doing wrong?

Thanks!

[ESP_Sprite]

Can you post a schematic rather than have us decode an incomplete PCB layout?