Posted by royjamil on 2025-03-23 11:31

Hi, you should first familiarize yourself with the devicetree concept and the Kconfig configuration system in Zephyr.
I recommend this video to understand how they work: Configure Zephyr: Kconfigs and Devicetree in Simple Words
For configuring SPI and other peripherals, start by reviewing the Zephyr SPI documentation, then explore existing examples.
For your specific board, check the generated build/primary/zephyr/zephyr.dts file to see the current configuration. In your application, create an overlay file (e.g., app.overlay) to reconfigure settings.
For example (theoretical):
&spi1 {
pinctrl-0 = < &spi1_sck_pa5 &spi1_miso_pa6 &spi1_mosi_pa7>;
pinctrl-names = “default”;
cs-gpios = < &gpiob 0 GPIO_ACTIVE_LOW>;
status = “okay”;
};
For more details, check existing Zephyr samples