not able to get spi device tree specification using SPI_DT_SPEC_GET

[sumit-adep]

I want to use spio of nrf52811 soc using nrf connect sdk 2.7.0 version with vs code.

I am trying to get spi devicetree specifications using 

struct spi_dt_spec spispec = SPI_DT_SPEC_GET(DT_NODELABEL(spi0), SPI_OP_MODE_MASTER, 0);

but it is giving: identifier "__device_dts_ord_DT_N_S_soc_S_spi_40004000_BUS_ORD" is undefined.

header files:

#include <zephyr/drivers/spi.h>

#include <zephyr/device.h>

#include <zephyr/drivers/gpio.h>

#include <zephyr/kernel.h>

#include <zephyr/devicetree.h>

#include <string.h> // For memcpy

overlayfile:

&spi0 {

status = "okay";

max-frequency = <125000>;

};

&spi0_default {

group1 {

psels = <NRF_PSEL(SPIM_SCK, 0, 30)>, // SCLK

<NRF_PSEL(SPIM_MOSI, 0, 28)>, // MOSI

<NRF_PSEL(SPIM_MISO, 0, 25)>; // MISO

};

};

&spi0_sleep {

group1 {

psels = <NRF_PSEL(SPIM_SCK, 0, 30)>, // SCLK

<NRF_PSEL(SPIM_MOSI, 0, 28)>, // MOSI

<NRF_PSEL(SPIM_MISO, 0, 25)>; // MISO

low-power-enable;

};

};


i am not able to move on from this problem seeking some some help.

[Elfving]

Hi,

Just want to start of by mentioning that our DevAcademy course on NCS fundementals is great for learning about device tree etc. And for SPI there is also this lesson right here.

So back to the issue, there seems to be some issues finding the spi node. Is this a custom board you've made? Are you sure that device tree for this board includes the right node?

Are these properties included with the node?

status = "okay";

compatible = "nordic,nrf-spim";

max-frequency = <125000>;

 

Regards,

Elfving

[sumit-adep]

thanks for your advice 
although this wasn't useful
i have solved my problem.