Resolved! X-CUBE-CELLULAR: UART doesn't process "OK" response from modem to AT
I am porting X-CUBE-CELLULAR to a new modem and host MCU. I am stuck at the initial modem initialization of the AT command channel when sending the cmd "AT" to the modem. The modem is Nimbelink TC4NAG and host MCU is Nucleo 144 F429. Flow control is...