Is there any perfectly example in SDK15.3 (nrf_drv_twi, nrfx_twi, nrf_drv_spi, nrfx_spi) ?

[kgoon]

I'm finding above examples in SDK example file. but, can't find.

where the perfectly tutorials?? It's too hard for me only refer to the library's code.

I cannot config sdk_config.h and instance because I do not have the informations.

In other words, I need this information.

1) what difference (#define NRFX_xxx_ENABLED) vs (#define xxx_ENABLED) in sdk_config.h ?

2) what is xxx_USE_EASY_DMA ?

3) twim = twi+DMA?, twis = twi slave?

4) how to initialize nrf_drv_twi_master, nrfx_twi_master, nrf_drv_spi_master, nrfx_spi_master ?

[Amanda Hsieh]

Hi, 

 

1) what difference (#define NRFX_xxx_ENABLED) vs (#define xxx_ENABLED) in sdk_config.h ?

This is just a legacy-layer that translates from the old API(nrf_drv) to the new API (nrfx). Please see this post.

 

2) what is xxx_USE_EASY_DMA ?

It means using EasyDMA.

3) twim = twi+DMA?, twis = twi slave?

TWIM — I2C compatible two-wire interface master with EasyDMA

TWIS — I2C compatible two-wire interface slave with EasyDMA

4) how to initialize nrf_drv_twi_master, nrfx_twi_master, nrf_drv_spi_master, nrfx_spi_master ?

Please refer to  

nRF5 SDK v15.3.0: TWI master

nRF5 SDK v15.3.0: SPI master

Best regards,

Amanda