Test development using CLI/python/RTT

[Tim Adu]

Hi,

I'd like to start developing automated tests for my custom NRF52840 board.

Currently I use the CLI library (with RTT backend) for communicating with the board.

Any ideas for how I could communicate with my board via a python script?

Thanks

Tim

[Jørgen Holmefjord]

Hi Tim,

If you want to continue using CLI over RTT for your communication with the board, you can look into our pynrfjprog library. This enables you to read and write RTT channels from a python script.

Best regards,
Jørgen

[Tim Adu]

Hi Jørgen,

I would like to avoid the middleman (CLI) and just use pynrfjprog directly.

1. I plan to use the pynrfjprog read and write functions directly as you suggested. However, on the firmware side, I'm considering one potential issue: my logger uses the RTT backend. Would I have to disable  the logger?
2. As for implmentation, would it make sense to use a repeating timer to call SEGGER_RTTRead() and have a task (I'm using FreeRTOS) decode the command, since there is no interrupt to tell when data is received in the RTT buffer?

Tim