RE: Using SPI driver with nRF52840 DK and nRF Connect SDK

zhsq6b — Tue, 28 Feb 2023 17:47:38 GMT

Thanks, I'll take a look at the example from github and see if I can replicate using my SDK version.

RE: Using SPI driver with nRF52840 DK and nRF Connect SDK

nordicator_prim3 — Tue, 28 Feb 2023 17:35:30 GMT

I've only had experience with the nordic acting as the master, but if you want an example of the SPI api then take a look at the sensor drivers for some SPI-based sensors like the ICM42605. Most of your communication will take place via the spi_transceive function or the higher-level functions based on spi_transceive from spi.h

As far as the devicetree goes, just make sure the compatible property on your spi bus is nordic,nrf-spis for the slave.

I found an example on github that has a single nrf chip acting as a slave and a master and talking to itself. It uses a newer version of the SDK (2.1.1) so the device tree will handle pins differently with the new pinctrl stuff so that will be different. The SPI driver is the same though, so everything not related to defining the pins should work the same. github.com/.../ncs-spi-master-slave-example