PPI channel assign

[Ayush Bansal]

In infocenter we will have to define 

***********

#define	nrf_drv_ppi_channel_assign   nrfx_ppi_channel_assign
	Macro for forwarding the new implementation.

************

where nrfx_ppi_channel_assign is a function

************

nrfx_err_t nrfx_ppi_channel_assign	(	nrf_ppi_channel_t	channel,
		uint32_t	eep,
		uint32_t	tep
	)

Function for assigning task and event endpoints to the PPI channel.

Parameters

[in]	channel	PPI channel to be assigned endpoints.
[in]	eep	Event endpoint address.
[in]	tep	Task endpoint address.

Return values

NRFX_SUCCESS	If the channel was successfully assigned.
NRFX_ERROR_INVALID_STATE	If the channel is not allocated for the user.
NRFX_ERROR_INVALID_PARAM	If the channel is not user-configurable.

*****************

but in SAADC peripheral example it is directly use as 

*******
err_code = nrf_drv_ppi_channel_assign(m_ppi_channel,
timer_compare_event_addr,
saadc_sample_task_addr);
APP_ERROR_CHECK(err_code);

*******

How these two codes similar?

[tesc]

Hi,

The names of a lot of driver APIs were changed in SDK 15. For instance, the old PPI driver API used functions with names on the form nrf_drv_ppi_* and now the new ones use names on the form nrfx_ppi_*.

The macro is not something that you must do yourself, it is found in the file <sdk folder>\integration\nrfx\legacy\nrf_drv_ppi.h, and is to be included if for instance you use a library that uses the old names for the API. You will see that a lot in SDK examples.

For more information and example, please have a look at the PPI Example.

Regards,
Terje

[Ayush Bansal]

But both the functions i have written are from infocenter of SDK 15, and code is also from SDK 15, examples

[tesc]

Hi,

I do not understand the question.

The define

#define      nrf_drv_ppi_channel_assign   nrfx_ppi_channel_assign

means that you can use the name nrf_drv_ppi_channel_assign for calling the function nrfx_ppi_channel_assign.

I recommend using the nrfx_* names for calling the functions from your own projects.

Regards,
Terje