Correct way to merge examples from SDK?

[M_VLV]

Hi,

I'm using SDK 15.0.0 and NRF52840 DK.

I want to merge couple examples from SDK in one project. As "base" example ble_app_uart was choosed (..nRF5_SDK_15.0.0_a53641a\examples\ble_peripheral\ble_app_uart).

But when I tried to add other peripheral examples, I got errors, which are pretty similar:

Error[Pe020]: identifier "NRF_DRV_SPI_INSTANCE_0" is undefined

and

Error[Pe020]: identifier "NRF_DRV_TWI_INSTANCE_0" is undefined

 

Looks like I need to set some additional settings, but I'm not sure where and what settings, since in preprocessor everything is included as in examples.

Regards!

 

[awneil]

As a general approach to this kind of thing, get the peripheral examples working on their own.

Then you have a reference point to see how it should work: at the points where the above errors occur in your non-working project, go and look at the corresponding place in the working project(s) - and see where the definition is coming from ...

[M_VLV]

This errors came from wrong settings in sdk_config.h file - needed peripherals wasnt enabled there.

I.e. for spi need to change 0 to 1.

// <e> SPI0_ENABLED - Enable SPI0 instance
//==========================================================
#ifndef SPI0_ENABLED
#define SPI0_ENABLED 1 // delault: 0
#endif
// <q> SPI0_USE_EASY_DMA  - Use EasyDMA