Thanks for your time; I appreciate any help to guide me in the right direction.
I have designed a custom PCB with ESP32-S3 and CP2102N-Axx-xQFN24 as the UDB to UART bridge.
The design includes an external SPI FLASH, which I'm using W25Q128JVSIQ in this case.
The COM port is detected without any issues, and the RX and TX led's flash while I try to connect to the board from Arduino IDE, but I get the following error message:
Code: Select all
esptool.py v4.5.1
Serial port COM18
Connecting......................................
A fatal error occurred: Failed to connect to ESP32-S3: Download mode successfully detected, but getting no sync reply: The serial TX path seems to be down.
For troubleshooting steps visit: https://docs.espressif.com/projects/esptool/en/latest/troubleshooting.html
the selected serial port For troubleshooting steps visit: https://docs.espressif.com/projects/esptool/en/latest/troubleshooting.html
does not exist or your board is not connected
Code: Select all
espefuse.py v4.7.0
Connecting......................................
A fatal error occurred: Failed to connect to Espressif device: Download mode successfully detected, but getting no sync reply: The serial TX path seems to be down.
For troubleshooting steps, visit: https://docs.espressif.com/projects/esptool/en/latest/troubleshooting.html
Please make sure that you have specified the right port with the --port argument.
Thanks.
Best Regards,
Alex