I’m trying to do serial interface between ESP8266-DevKitC and VF61 using viola plus.
ESP has TTL 3.3V interface.
I have done successful communication from UART A. But i want to do it from UART B. But it is not happening.
I have also tried using UART C, but still no success.
For diagnosis, I have connected UART A and UART B Rx/Tx together to check if UART B is sending and receiving data. It was working fine.
I have tried multiple VFxx boards and multiple carrier boards. But same issue.
I have tested same code with IMX 6 and ESP, it is working perfectly with with UART B/C.
Kindly guide us what we are missing.