SPIS in nRF Connect SDK V2.2.0

[AKV]

Hi 

I am using nRF5340 DK and nRF Connect SDK V2.2.0.

I have developed a BLE application code by using this custom_ncs_ble_service_sample tutorial. Its working fine.

I want to add a SPIS (SPI Slave mode) in to this code. 

Is there any example code provided for SPIM and SPIS example in NCS.? If yes please share.

 

[Edvin]

Hello,

I have developed a BLE application code by using this custom_ncs_ble_service_sample tutorial. Its working fine.

Glad to see it is useful.

Is there any example code provided for SPIM and SPIS example in NCS.? If yes please share.

We don't have any official samples from Nordic showing this in particular, but you can have a look at these:

SPIS: https://github.com/zephyrproject-rtos/hal_nordic/tree/master/nrfx/samples/src/nrfx_spim_spis 

SPIM: https://github.com/zephyrproject-rtos/hal_nordic/tree/master/nrfx/samples/src/nrfx_spim 

Best regards,

Edvin

[AKV]

Thanks for the reply,

I am trying to add SPI into my code by referring the above example. But when I enable CONFIG_NRFX_SPIS2=y getting the error like (identifier "NRFX_SPIS2_INST_IDX" is undefined) and in the prj.conf file its showing that

(CONFIG_NRFX_SPIS2 was assigned the value y, but got the value n. Missing dependencies:) 

But am able to enable CONFIG_NRFX_SPIM1=y

1. Why is this error coming only for SPIS? Do I need to enable somewhere else?

2. Do I need to copy the overlay file as well?   

[Edvin]

Hello,

1: It is not related to SPIS, it is related to SPI2

2: Yes. Please see the overlay file found in the repository (here).

Just create a file with the bordname.overlay (in other words, nrf5340dk_nrf5340_cpuapp.overlay), and copy the content from the overlay file in the link, and place it in the same folder as your prj.conf.

Best regards,

Edvin

[AKV]

Hi, 

SPIM1 and SPIS2 is working now. But its showing that warning in the prj.conf file.

(CONFIG_NRFX_SPIS2 was assigned the value y, but got the value n. Missing dependencies:) 

Why is that showing?

[Edvin]

Does it show in the build log as well, or only when you hover over it in your prj.conf file?

If it doesn't say in the build log, I would say it is probably just the nRF Connect plugin that didn't catch the updated overlay file.

To check, you can check what the config ends up with in your build folder:

build\zephyr\.config, and search for CONFIG_NRFX_SPIS2.

Best regards,

Edvin

[AKV]

Edvin said:

Does it show in the build log as well, or only when you hover over it in your prj.conf file?

 No, Its showing only when I hover over it in prj.conf file.

In the .config file its showing CONFIG_NRFX_SPIS2=y.

[Edvin]

Ok, in that case, it is only a GUI bug. It will not affect the application running on the nRF itself. 

Best regards,

Edvin

[AKV]

HI,

Edvin said:

Ok, in that case, it is only a GUI bug. It will not affect the application running on the nRF itself. 

Ok. 

Currently am working with nrf5340 dk so that I have generated a build configuration for nrf5340dk_nrf5340_cpuapp.

Can we use this same code with same build config for my custom nrf5340 soc board? 

[Edvin]

well, you may need to do some modifications, which can be done in your overlay file, or you can copy the board files, rename them, and adjust them to your custom board. E.g. if your board doesn't have LEDs or buttons, or if they are on different GPIOs, this is where you would typically change that. Or if your custom board doesn't have an external QSPI flash chip, that can be removed from your board files.

Best regards,

Edvin