Non-blocking access to SD Card in nrf connect sdk? (SPIM/DMA/DiskAccess)

RE: Non-blocking access to SD Card in nrf connect sdk? (SPIM/DMA/DiskAccess)

Jared — Wed, 10 Jul 2024 12:49:10 GMT

Hi,

No, as far as I'm aware, we don't have a Nordic module outside of what Zephyr already offers for this,

regards

Jared

RE: Non-blocking access to SD Card in nrf connect sdk? (SPIM/DMA/DiskAccess)

danib18 — Tue, 09 Jul 2024 07:52:40 GMT

Hello Jared, thank you for responding.

Yes, i'm referring to the DiskAccess implementation. Through this module, spim is used but waits for the completition of the spi transfer, blocking the cpu doing other tasks.

Is there a module of Nordic capable of using spim with sd cards without blocking the writes available or planned?

As statet above, im using nRF Connect SDK version 2.7.

Kind regards
Daniel

RE: Non-blocking access to SD Card in nrf connect sdk? (SPIM/DMA/DiskAccess)

Jared — Fri, 05 Jul 2024 11:49:56 GMT

Hi,

[quote user=""]I access the sd card from DiskAccess from zephyr, but this "path" only allows normal spi interactions which will block the CPU. [/quote]

Can you elaborate on that, where does it specify this? Looks like it's using file system which I think should be compatible with SPIM. Or were you referring to how the DisckAccess lib is implemented?

Also what nRF Connect SDK version are you using?

regards

Jared