nRF Connect Trace Collector v1.1.3 or later

Collecting a modem trace for a custom board

To collect a modem trace, you must connect your board to the computer with, for example, a UART to USB device, update your application to enable tracing, and capture the trace while your application is running.

Note: You can also collect traces using the RTT interface. Enable the RTT trace backend with the CONFIG_NRF_MODEM_LIB_TRACE_BACKEND_RTT option and collect the traces in binary format using the j-link RTT logger. Convert the traces to PCAP with the Trace Collector V2 preview application's Convert RAW trace to PCAP option on the left pane. Please note that this method is still experimental and that the RTT logger output file (.log) does not show by default in the file explorer.