Not able to compile my SPI device

RE: Not able to compile my SPI device

Menon — Fri, 14 Apr 2023 09:30:14 GMT

Hello,

Glad to hear that your issue has been resolved.

Kind Regards,

Abhijith

RE: Not able to compile my SPI device

Hairuo — Thu, 13 Apr 2023 19:14:25 GMT

Thank you! I added my custom yaml file and the problem is fixed!

RE: Not able to compile my SPI device

Mariano Goluboff — Tue, 11 Apr 2023 11:30:56 GMT

The "spi-device.yaml" default file doesn't have a compatible tag, so it can't be used directly in your overlay file. It should be imported into a custom driver for the SPI device that you are using. For example, you could edit the definition to change

compatible = "spi-device"

to:

compatible = "hartmodem"

Then create a file called: <project base>/dts/bindings/hartmodem.yaml that has this:

description: Hartmodem driver
compatible: "hartmodem"
include: spi-device.yaml

RE: Not able to compile my SPI device

Hairuo — Sun, 09 Apr 2023 19:31:21 GMT

Attached is the full-project zip-file here. Hope it helps with the technical support/debug on your side!

devzone.nordicsemi.com/.../h2ok_5F00_hart_5F00_spi_5F00_device.zip

RE: Not able to compile my SPI device

Hairuo — Tue, 04 Apr 2023 13:43:06 GMT

Hi, I think the pinctrl are defined by default. However, I re-defined the pin-ctrl and it gave me the same error.

My updated overlay file:

&spi3{
    status = "okay";
    // compatible = "spi-controller";
    clock-frequency = < 1250000 >;
    cs-gpios =  <&gpio0 21 GPIO_ACTIVE_LOW>;
    interrupts = <14 NRF_DEFAULT_IRQ_PRIORITY>; 
    hartmodem: hartmodem@0 {
		compatible = "spi-device";
        status = "okay";
		reg = <0>;
        spi-max-frequency = < 1250000 >;
        duplex = < 0 >;
        frame-format = < 0 >;
	};
};

&pinctrl {
    spi3_default: spi3_default {
		group1 {
			psels = <NRF_PSEL(SPIM_SCK, 0, 13)>,
				<NRF_PSEL(SPIM_MISO, 0, 12)>,
				<NRF_PSEL(SPIM_MOSI, 0, 11)>;
		};
	};

	spi3_sleep: spi3_sleep {
		group1 {
			psels = <NRF_PSEL(SPIM_SCK, 0, 13)>,
				<NRF_PSEL(SPIM_MISO, 0, 12)>,
				<NRF_PSEL(SPIM_MOSI, 0, 11)>;
			low-power-enable;
		};
	};
   
};

/{
    aliases {
        hartmodem = &hartmodem;
    };
};

Compiled devicetree output:

Also, this is a build error, so I'm assuming that the pinctrl is not really useful unless you flash to the board & try to read it from an spi device, right?

RE: Not able to compile my SPI device

Menon — Tue, 04 Apr 2023 13:31:00 GMT

Hello,

The error you are seeing is a Device tree error. When it comes to nRF connect sdk v2.0.0 and higher you need to use Pin control for defining the overlay file. I suggest you to go through the Pin control section and Dev academy lessons for writing the overlay file. You can also see some samples in the Devzone itself.

Kind Regards,

Abhijith