nRF5340 Serial Wire Debug Recommendations

RE: nRF5340 Serial Wire Debug Recommendations

alwalker — Wed, 03 Aug 2022 13:46:50 GMT

Hi Hakon,

That I can use the nRF5340-DK boards I have is very good news for development, and the Segger solutions will be useful for mass production.

Kind regards,

RE: nRF5340 Serial Wire Debug Recommendations

Håkon Alseth — Wed, 03 Aug 2022 12:21:40 GMT

Hi,

nrfjprog, which is called by west and vscode, supports segger based debuggers.

For development purposes, you can also use a nRF5340-DK to program a external board, provided that your external board is 3.0V powered:

https://infocenter.nordicsemi.com/topic/ug_nrf5340_dk/UG/dk/hw_debug_out.html?cp=3_0_4_3_9

Kind regards,

Håkon

RE: nRF5340 Serial Wire Debug Recommendations

alwalker — Wed, 03 Aug 2022 12:11:38 GMT

Hi Hakon,

Thanks very much, how do these newer Segger devices integrate with nRF Connect SDK for code development and debug please?

Kind regards,

RE: nRF5340 Serial Wire Debug Recommendations

Håkon Alseth — Wed, 03 Aug 2022 11:57:49 GMT

Hi,

[quote user=""]For custom board designs, as the Segger JLink is no longer supported[/quote]

For programming Cortex M33 cores (which is the cpu core on both nRF53 and nRF91), a newer debugger is required, as the nRF52-series on-board debuggers do not support programming Cortex M23/M33 devices.

Segger has dedicated debuggers and programmers for programming of nRF5-series devices (and nRF91-series) available for purchase:

https://www.segger.com/products/debug-probes/j-link/models/j-link-base/

Kind regards,

Håkon