(tr)uSDX Forum

Update

I have attached the screenshot

Unfortunately I also ran into the error STK500_RECV (): PROGRAMMER IS NOT RESPONDING. The Oled when it turns on shows the serial number. I'm confused and don't understand what I can do to fix it. Give me your help.

Hello,

use AVRDUDESS-2.13-portable.
Try other USB cables, if possible not as long.
I had same problem with a cable that was too long.

Thank you for the answer. I only have two cables but they are the usual length of about 1m. I also tried the portable version of avrdudess but without success. Did you have the same problems on your unit?

My problems were solved with a shorter cable. Now 100% OK.
Look again at the driver and set Baud Rate to 115200. Also in Device Manager.
Compare each step with https://dl2man.de/3b-trusdx-firmware/
Good luck!

Unfortunately, even shortening the cable I do not get any results. I will try to reinstall the bootloader. Thank you for your help.

What does hitting the Detect button return?

It returns the signature of the mcu:
Detected 1e950f = ATmega328P

heinrich wrote: ↑26 Apr 2022, 10:36 It returns the signature of the mcu:
Detected 1e950f = ATmega328P

Connections are find. Try reducing your baud rate.