rx data length in SPI slave mode

RE: rx data length in SPI slave mode

remtec — Wed, 22 Jan 2025 11:09:41 GMT

Hi.

I think that after call "k_poll_signal_check(&spi_slave_done_sig, &signaled, &result);", in "result" I have the number of bytes received from the spi_slave.

Can you confirm it for me?

Thank you

RE: rx data length in SPI slave mode

Robin — Tue, 07 Jan 2025 05:55:19 GMT

Thanks for the clarification and direction. I'll do that for myself.

RE: rx data length in SPI slave mode

Sigurd Hellesvik — Mon, 06 Jan 2025 13:46:51 GMT

As I can see the amount is used inside the zephyr nrfx spis driver, here.
However, I cannot see any way to retrevive this from the zephyr spis driver.

One alternative would be that you try to modify the zephyr nrfx spis driver to give you the rx amount.

RE: rx data length in SPI slave mode

Robin — Sat, 04 Jan 2025 03:24:23 GMT

Hi Siguard,

I got this example from here: https://github.com/too1/ncs-spi-master-slave-example

Regards,

Robin

RE: rx data length in SPI slave mode

Sigurd Hellesvik — Fri, 03 Jan 2025 12:00:54 GMT

Hi,

[quote user=""]* APP: spi-master-slave example[/quote]

To make sure I look at the exact same sample as you:

What is the path of this example?

Regards,
Sigurd Hellesvik