nRF Connect cannot find instance for mcp2515 / nrfx spi / nrf21540 drivers during build, even though they were defined in the devicetree

RE: nRF Connect cannot find instance for mcp2515 / nrfx spi / nrf21540 drivers during build, even though they were defined in the devicetree

puz_md — Tue, 29 Apr 2025 14:51:38 GMT

Hi Vidar, thanks to your help, I could fix the problem.

Device ID 21 was pointing to a memory address associated with the GPIO1 hardware:

 *   21  /soc/peripheral@50000000/gpio@842800

I had similar problems with the nrfx spi driver (maybe it was used indirectly by some other driver) and the nRF21540 fem driver. Everything worked when I added the following definitions to both app core and net core device trees in my board definition:

&gpio0 {
	status = "okay";
};

&gpio1 {
	status = "okay";
};

&gpiote {
	status = "okay";
};

Best regards,
Michael

RE: nRF Connect cannot find instance for mcp2515 driver even though it was defined in the devicetree

Vidar Berg — Tue, 29 Apr 2025 11:44:25 GMT

Hello Michael,

Please check if CONFIG_CAN_MCP2515 ended up being selected in your .config file (build/<project name>/zephyr/.config). It would also be good to know which device is being referenced here:

C:/ncs/v2.9.0/zephyr/include/zephyr/device.h:92:41: error: '__device_dts_ord_21' undeclared here (not in a function); did you mean '__device_dts_ord_24'?
   92 | #define DEVICE_NAME_GET(dev_id) _CONCAT(__device_, dev_id)
      |                                         ^~~~~~~~~

https://docs.zephyrproject.org/latest/build/dts/troubleshooting.html#troubleshooting-devicetree

You can look up the ordinal number '21' in build/MyProject/zephyr/include/generated/zephyr/devicetree_generated.h

Best regards,

Vidar