Hi, Nordic:
I am trying to use spi to transfer data between the two DKs. But I'm having trouble emulating the use of spim to use spis.
This is my main.c.
#define SPI_DEV_NODE DT_NODELABEL(spi1)
#define SPIS_NODE DT_NODELABEL(spi1)
static const nrfx_spis_t spis = NRFX_SPIS_INSTANCE(1);
static bool spis_init(void)
{
nrfx_err_t err;
nrfx_spis_config_t spis_config = NRFX_SPIS_DEFAULT_CONFIG(
/* Take pin numbers from devicetree. */
DT_PROP(SPIS_NODE, sck_pin),
DT_PROP(SPIS_NODE, mosi_pin),
DT_PROP(SPIS_NODE, miso_pin),
NRF_DT_GPIOS_TO_PSEL(SPIS_NODE, cs_gpios));
// spim_config.rx_delay = 1;
// spim_config.ss_duration = 1;
err = nrfx_spis_init(&spis, &spis_config, NULL, NULL);
if (err != NRFX_SUCCESS) {
printk("nrfx_spis_init() failed: 0x%08x\n", err);
return false;
}
return true;
}
And this is how the .dts looks like.
&spi1 {
compatible = "nordic,nrf-spis";
status = "okay";
sck-pin = <42>;
mosi-pin = <26>;
miso-pin = <24>;
cs-gpios = <&gpio1 8 GPIO_ACTIVE_LOW>;
miso-pull-down;
csn-pin = < 1 >;
def-char = < 2 >;
};
But problems occured.
I was wondering if you could provide a demo of properly initializing spis and using it to receive data?
