Can NCP and RCP support additional GPIO functionality in their firmware

RE: Can NCP and RCP support additional GPIO functionality in their firmware

Sigurd Hellesvik — Thu, 07 Apr 2022 11:16:23 GMT

Many peripherals, such as our TWIM Driver use easyDMA, and therefore most of the peripheral operation is done outside the CPU.
For these, only writing/reading to/from the peripheral and working with the data will require CPU interaction.

GPIO work still require the CPU, but if this is not hugging too many resources.

I recommend to have a look at Thread Priorities to make sure that the coprocessor runs at higher priorities than your other tasks.

If you face issues, you could also look at the priorities of interrupts in Zephyr. I guess these should be configured in a good way by default, but you could look at Devicetree and Interrupts to learn more.

Does this answer your questions?

Regards,
Sigurd Hellesvik

RE: Can NCP and RCP support additional GPIO functionality in their firmware

Bhumika — Tue, 05 Apr 2022 12:49:29 GMT

Thank You.

Awaiting your reply.

RE: Can NCP and RCP support additional GPIO functionality in their firmware

Sigurd Hellesvik — Tue, 05 Apr 2022 12:42:15 GMT

I will do some research to see if this can cause issues, and/or if there are any things you should do to be avoid issues.
You will hear back from me by end of Thursday.

Regards,
Sigurd Hellesvik