Bulk programming multiple nRF chips?

[Andrew Lentvorski]

SWD is supposedly a multi-drop bus.

Is there a way to program multiple nRF chips using only the 2 SWDCLK/SWDIO pins?

How are people programming and verifying boards when they have 1,000/10,000/100,000?

Thanks.

[Michael Dietz]

There is a multi-drop extension in SWD 2.0 protocol but nRF devices don't support this. So you will have to program each nRF one at a time. The nRF IC is the master so it drives the SWD clock and thus you can only have one connected at a time.

Also see this thread: devzone.nordicsemi.com/.../

And there are board houses that will do this for you so that might be worth looking into. www.hilosystems.com/.../introduction.aspx

I think a lot of our customers are using nrfjprog with a SEGGER production programmer though.

-Mike

[HILO]

Pre-programming could be an option for you in production. Please check the blog 'Programming services, HI-LO Electronics in corporation with Nordic Semiconductor AS' for more info.