nRF5340 SPI Slave NRFX sample

Question

Hi! 
 I'm trying to run SPI slave on nRF5340 - doesn't work - project doesn't even build, the SPI master is running. 
 Can I see an example of NRFX SPI Slave for nRF5340?

SergeySK · Accepted Answer

Hi, Simon!
Your advice helped me a lot!
Thank you!

But your spi Slave code is not going to the same :)

This my code:

#define ALT_SPI_SLAVE DT_LABEL( DT_NODELABEL( alt_spi3_slave ) )

static const struct device *spi3_s_dev_alt;

......

spi3_s_dev_alt = device_get_binding( ALT_SPI_SLAVE );

if( spi3_s_dev_alt == NULL )

{

return ERR_NO_INIT;

}

.....

"nrf5340dk_nrf5340_cpuapp.overlay":

/* SPI3 for slave mode

*/

alt_spi3_slave: &spi3 {

compatible = "nordic,nrf-spis";

status = "okay";

pinctrl-0 = <&spi3_default>;

pinctrl-1 = <&spi3_sleep>;

def-char = <0x00>;

};

"prj.conf":

# This is needed for using another SPIM instance via the Zephyr SPI driver.

CONFIG_SPI=y

CONFIG_SPI_ASYNC=y

CONFIG_SPI_SLAVE=y

Build fails:
C:\ncs\v2.1.1\zephyr\include\zephyr\devicetree.h:177:29: note: in expansion of macro 'DT_CAT'
 177 | #define DT_NODELABEL(label) DT_CAT(DT_N_NODELABEL_, label)
 | ^~~~~~
c:\nRF_prj\myApp\myApp1\src\app_spi3_s.c:18:34: note: in expansion of macro 'DT_NODELABEL'
 18 | #define ALT_SPI_SLAVE DT_LABEL( DT_NODELABEL( my_spi3_slave ) )
 | ^~~~~~~~~~~~
c:\nRF_prj\myApp\myApp1\src\app_spi3_s.c:46:39: note: in expansion of macro 'ALT_SPI_SLAVE'
 46 | spi3_s_dev_alt = device_get_binding( ALT_SPI_SLAVE );
 | ^~~~~~~~~~~~~
c:\nRF_prj\myApp\myApp1\build_1\zephyr\include\generated\devicetree_unfixed.h:11795:38: note: each undeclared identifier is reported only once for each function it appears in
11795 | #define DT_N_NODELABEL_my_spi3_slave DT_N_S_soc_S_peripheral_50000000_S_spi_c000

Do not tell me what could be the problem?

Best regards,
Sergii

nRF5340 SPI Slave NRFX sample

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