RE: miso-pull-up propety desappear since SDK 2.4.0, so how to enable pull up for spi in the .dts file ?

Vidar Berg — Mon, 02 Oct 2023 08:46:58 GMT

Hi,

Pull-up should be applied with the bias-pull-up property now after pinctrl was introduced in SDK version 2.0.0, please see Pin control transition for more details.

Example:

&pinctrl {
	spi1_default: spi1_default {
		group1 {
			psels = <NRF_PSEL(SPIM_SCK, 1, 15)>,
				<NRF_PSEL(SPIM_MOSI, 1, 13)>;

		};
		group2 {
			psels = <NRF_PSEL(SPIM_MISO, 1, 14)>;
			bias-pull-up;
		};
	};

Best regards,

Vidar