How to config the sdk_config.h when using nrf_drv_twi APIs in SDK 15.2?

RE: How to config the sdk_config.h when using nrf_drv_twi APIs in SDK 15.2?

Simonr — Thu, 16 May 2019 10:44:47 GMT

Glad you got it working!

-Simon

Bee — Thu, 16 May 2019 10:37:16 GMT

Thanks for help, Simon. The problem has been solved. I used an sdk_config.h from a wrong path.

Bee — Thu, 16 May 2019 09:24:39 GMT

I don't think the main.c can cause this problem. I've ensure those defines is like this:

NRFX_TWIM_ENABLED 1
NRFX_TWI_ENABLED 1
TWI_ENABLED 1
TWI0_ENABLED 1
TWI0_USE_EASY_DMA 1
TWI1_ENABLED 0
TWI1_USE_EASY_DMA 0

I don't need TWI1. Do I also need to set TWI1_ENABLED and TWI1_USE_EASY_DMA to 1?

Simonr — Thu, 16 May 2019 09:06:28 GMT

How have you implemented the TWI into your main.c file?

Also please go through your sdk_config.h file to check that each of these defines are set to 1:

NRFX_TWIM_ENABLED 1
NRFX_TWI_ENABLED 1
TWI_ENABLED 1
TWI0_ENABLED 1
TWI0_USE_EASY_DMA 1
TWI1_ENABLED 1
TWI1_USE_EASY_DMA 1

Best regards,

Simon