We use nRF9160 on our own board.
The firmware "Serial lte modem" is installed on the chip with connection to an external MCU.
#\nUse\nUART_0\n(when\nworking\nwith\nPC\nterminal) #CONFIG_UART_0_NRF_HW_ASYNC_TIMER=2 #\nUse\nUART_2\n(when\nworking\nwith\nexternal\nMCU) CONFIG_SLM_CONNECT_UART_2=y CONFIG_UART_2_NRF_HW_ASYNC_TIMER=2
A port is connected to the board to communicate with the nRF9160 via the terminal. The nRF9160 responds to "AT" or "AT%XSYSTEMMODE=1,0,0,0" commands (response is always "OK"), but any attempts to execute commands like:
- AT+CFUN=0;
- AT+CFUN=1;
- AT+CFUN?;
- AT+CFUN=?
Always returns an "ERROR" response (with a delay of a few seconds). What could be the reason?
