CONFIG_UART_ASYNC_API=y CONFIG_UART_1_ASYNC=y CONFIG_UART_1_INTERRUPT_DRIVEN=n # Align with the Serial LTE Modem (SLM) application. CONFIG_MODEM_CELLULAR_CMUX_MAX_FRAME_SIZE=1500 CONFIG_MODEM_CELLULAR_UART_BUFFER_SIZES=6000 # Print logs and printk() output on uart0. CONFIG_LOG_BACKEND_UART=y CONFIG_MODEM_LOG_LEVEL_DBG=y # Disable AT shell as SLM application has no AT mode user pipes CONFIG_MODEM_AT_SHELL=n