SPI Slave on nRF52840 under Zephyr

[BvdP4Celsius]

I can not get the SPI Slave function working on nRF52840 (nrf52840dk_nrf52840 board)

In the nrf52840dk_nrf52840.overlay I wrote:
&spi1 {
    compatible = "nordic,nrf-spi";
    label = "SPI_1";
    status = "okay";
    sck-pin = <31>;
    mosi-pin = <30>;
    miso-pin = <40>;
};

In the pr.conf I wrote:

# adding SPI communication
CONFIG_SPI=y
CONFIG_SPI_SLAVE=y

In the main loop I wrote:
spi = device_get_binding("SPI_1");

Calling spi_slave_read(spi, &spi_cfg, &spi_rx_buffer); will result in Slave mode is not supported on SPI_1

[Øivind]

Hi,

in your overlay, put ' compatible = "nordic,nrf-spis"; '. That should avoid the "Slave mode is not supported" error.