Is it possible to use nrf_spi_mngr with EASY DMA on nrf52832?

[Anthony Ambuehl]

I've been told due to PAN 58 it is not possible to use EASY DMA with nrf52832  without switching to the deprecated SPI driver.  Is there a workaround that allows the use of nrf_spi_mngr?    Without easy DMA the SPI bus speed is incredibly slow, operating 1/8th of the expected rate.

I'm using SDK 15.0.0 with nrf52832.

[Anthony Ambuehl]

I discovered the SPI slowness was not related to disabling EASYDMA, but was actually an issue in our code.

None the less...

It would be really nice to be able to use EASYDMA feature with SPI in NRF52832.  Since it seems there is a potential workaround it would be a nice improvement for the drivers to support a compile flag that would implement the workaround automatically depending on the size of the transfer.

[haakonsh]

Yeah that's a good idea. I'll add it to our list of requested improvements. 

What flash chip are you using?

[Anthony Ambuehl]

There are a couple of different options under consideration.  One of them is MX66L51235 and another is IS25WP128.  Since component selection is still ongoing workarounds specific to the flash chip are not desirable.