Testing and Debugging#
The UART interface is not always available to report traces from Sidewalk example applications. Instead, reporting leverages the J-Link RTT interface. To set up the communication between your PC and the EFR32, follow these instructions.
Install the J-Link RTT Viewer.
Open the J-Link RTT Viewer.
In the Configuration panel, Connection to J-Link section, select USB.
In the Specify Target Device list, select the connected part (for example EFR32BG21BxxxF1024 or EFR32MG24AxxxF1536).
In the Target Interface & Speed panel, select SWD and 4000 kHz.
In the RTT Control Block panel, select Auto Detection.
Ⓘ INFO Ⓘ: For the KG100S module, select EFR32BG21BxxxF1024 as the target device.
A terminal opens and the Sidewalk application traces are output as shown below (Bluetooth application).
> [I] MFG NVM3 start info: > OK > > [I] KV NVM3 start info: > OK > > [I] MFG Store opened with 0 objects
⚠ WARNING ⚠: J-Link RTT and Simplicity Studio use the same channel to communicate with the board. If you do not see logs in J-Link RTT, try closing and re-opening Simplicity Studio to reset the connection.
Cloud Application Debugging#
To debug your cloud application, several AWS objects can be use to monitor the events in your account. See here for more information.