Hello, While the first possibility did not solve the problem 100% (although the error occurred not that often), your second approach absolutely did the trick! THX! But nevertheless, it is interesting to know, that the uart driver runs on the core that called its setup routine. During troubleshooting...

Hello there, I am working on a application that uses uart for communication via a rs485 bus and wifi. The rs485 host requires precise timing in means of not pausing the transmission in-between the data-packet and to disable the transmitter immediately after the last byte has been sent. Without runni...