UART serial and CDC-ACM on Zephyr #bt #hc5


I would like to use Zephyr with my Frdm K64f to program an HC-05 Bluetooth module using AT commands. Could you help explaining were I need to start?

For now my board are running cdc_acm composite example and it works fine, with two serial comm terminals it's send data each one. I'd like to change this example to use one cdc_acm and  UART_3.  cdc_acm <---> UART_3.