SPI Frequency configuration

[Ramfrost]

Hello friends, I am using nrf52833 MCU for my current project,  this project involves a sensor from infineon that operate on SPI and it supports high frequencies up to 50 MHz. My question is what is the maximum possible frequency of the SPI at this MCU?

I was able to compile the code while chosing 8MHz Frequency in the SDK but I wanted to use higher frequency as well. In the SDK I saw an option to run my MCU's SPI at 16MHz and 32MHz but it was under a #ifdefined guard, I tried using it but was not able to compile it anyhow.

 

What is the problem here, Is there any way I can get higher frequency than 8MHz for SPI?

Thank You.

[Ramfrost]

Hi Kenneth, thanks for your response. Is there any driver for accessing spi 3 or a code example for it's implementation or any guide suggesting how to do that because apart from it's name and base address I could not find more information about it. 

Thank You.

[Kenneth]

I can see a devzone case where someone was using spi3, here you can see how to define spi3 in the overlay file, and also how to use it in the project code.

https://devzone.nordicsemi.com/f/nordic-q-a/106607/toggle-pin-between-spi-and-gpio?ReplyFilter=Answers&ReplySortBy=Answers&ReplySortOrder=Descending 

Kenneth