2

Good day

I am currently setting up UART communications for two Raspi's using wiring Pi's uart library. I have three Raspberry Pi's (B+, Compute Module IO board, B2). I have been able to make communication between B+ and B2 but so far have been unsuccessful with the CMIO/Compute Module IO board. Is there a special way to set up UART for the CMIO board? The uart communication was intended between the B+ and the CMIO, the B2 is just used for debugging.

What I have tried are the following:

  1. use raspi-config to disable Serial
  2. use stty -F/dev/ttyAMA0 100000#
  3. checked that the Tx and Rx are inter connected (Tx->Rx and Rx->Tx)

I remember editing the dtblob for the CMIO to reroute the I2C, is there a required way similar for UART set-up?

I have been so stuck with this problem. Your help would be very appreciated.

PS, I cannot use the ethernet port as the CMIO does not have one :)

0

It turns out, in the dt-blob.dts file that I have previously modified to accomodate two pi cameras that the UART was disabled :)

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.