SPI master problem

RE: SPI master problem

Jørgen Holmefjord — Fri, 15 May 2020 08:29:57 GMT

You can make the nrf_drv_spi driver use legacy SPI by setting SPIx_USE_EASY_DMA config to 0 in your sdk_config.h file:

// <q> SPI0_USE_EASY_DMA - Use EasyDMA

#ifndef SPI0_USE_EASY_DMA
#define SPI0_USE_EASY_DMA 0
#endif

If you do this for all the instances, you should be able to remove the nrfx_spim.c file from the project.

RE: SPI master problem

awneil — Fri, 15 May 2020 08:27:05 GMT

[quote userid="90345" url="~/f/nordic-q-a/61400/spi-master-problem/250098"]Can you instruct me on how to use the SPI module and not the SPIM module[/quote]

Have you looked at the SDK examples ?

https://infocenter.nordicsemi.com/topic/sdk_nrf5_v16.0.0/spi_master_example.html

https://infocenter.nordicsemi.com/topic/sdk_nrf5_v16.0.0/nrfx_spim_example.html

RE: SPI master problem

amitash — Fri, 15 May 2020 08:11:01 GMT

I am using the nRF52832 (typo in the message).

Can you instruct me on how to use the SPI module and not the SPIM module?

I guess that the changes are at the sdk_config.h file in the example but I can not get it to work.

Thanks!

RE: SPI master problem

Jørgen Holmefjord — Thu, 14 May 2020 12:24:15 GMT

Hi,

Are you using nRF52833 or nRF52832, your description and Tags do not match. If using nRF52832, there is an errata that could be relevant.

Best regards,
Jørgen

RE: SPI master problem

awneil — Thu, 14 May 2020 11:59:10 GMT

have you used a scope or analyser to see what's actually happening on the wires? and to compare that against your "working" RPi case?