Configuring AD4130 through SPI on nRF52dk (nrf52832)

[chrisafitz]

Hello,

I am working on setting up the nrf52 (nrf52832) to communicated with the AD4130 from Analog Devices via the SPI Port. However, I am encountering a problem that I have not been able to solve. Below I have included my overlay file and the error that I am getting -- My code is essentially following the example in the dev academy tutorials but to much lower success.

Overlay section:

&spi1 {

              compatible = "nordic,nrf-spi";

              status = "okay";

              pinctrl-0 = <&spi1_default>;

              pinctrl-1 = <&spi1_sleep>;

              pinctrl-names = "default", "sleep";

              cs-gpios = <&gpio0 25 GPIO_ACTIVE_LOW>;

              ad4130: ad4130@0 {

                        compatible = "spi-device";

                        reg = <0>;

                        spi-max-frequency = <5000000>;

                        label = "ad4130";

        };

};

Lines with problem in c file:

#define SPIOP SPI_WORD_SET(8) | SPI_TRANSFER_MSB | SPI_MODE_CPOL | SPI_MODE_CPHA

struct spi_dt_spec spispec = SPI_DT_SPEC_GET(DT_NODELABEL(ad4130), SPIOP, 0);

error message: identifier "DT_N_S_soc_S_spi_40004000_S_ad4130_0_P_spi_max_frequency" is undefined

Thank you for your help!

[Kenneth]

Any way you can share a simple application that we can use to recreate it here? Specify which ncs release you are using at the same time.

Kenneth

[chrisafitz]

Hi Kenneth, the version I have is v2.6.1. The sample application I was trying to copy was pulling from the Nordic dev academy (nRF SDK Connect Intermediate) exercise 1 under the nrf where they connect a BME280 via SPI. Thank you for your response.