DMAMUX: Direct Memory Access Multiplexer Driver

Overview

The KSDK provides a peripheral driver for the Direct Memory Access Multiplexer(DMAMUX) of Kinetis devices.

Typical use case

DMAMUX Operation

DMAMUX_Init(DMAMUX0);
DMAMUX_SetSource(DMAMUX0, channel, source);
DMAMUX_EnableChannel(DMAMUX0, channel);
...
DMAMUX_DisableChannel(DMAMUX, channel);
DMAMUX_Deinit(DMAMUX0);

Files
file	fsl_dmamux.h

Driver version
#define	FSL_DMAMUX_DRIVER_VERSION   (MAKE_VERSION(2, 0, 0))
	DMAMUX driver version 2.0.0. More...

DMAMUX Initialize and De-initialize
void	DMAMUX_Init (DMAMUX_Type *base)
	Initializes DMAMUX peripheral. More...
void	DMAMUX_Deinit (DMAMUX_Type *base)
	Deinitializes DMAMUX peripheral. More...

DMAMUX Channel Operation
static void	DMAMUX_EnableChannel (DMAMUX_Type *base, uint32_t channel)
	Enable DMAMUX channel. More...
static void	DMAMUX_DisableChannel (DMAMUX_Type *base, uint32_t channel)
	Disable DMAMUX channel. More...
static void	DMAMUX_SetSource (DMAMUX_Type *base, uint32_t channel, uint8_t source)
	Configure DMAMUX channel source. More...

Macro Definition Documentation

#define FSL_DMAMUX_DRIVER_VERSION   (MAKE_VERSION(2, 0, 0))

Function Documentation

void DMAMUX_Init

(

DMAMUX_Type *

base

)

This function ungate the DMAMUX clock.

Parameters

base	DMAMUX peripheral base address.

void DMAMUX_Deinit

(

DMAMUX_Type *

base

)

This function gate the DMAMUX clock.

Parameters

base	DMAMUX peripheral base address.

static void DMAMUX_EnableChannel ( DMAMUX_Type *  base, uint32_t  channel  )

inlinestatic

This function enable DMAMUX channel to work.

Parameters

base	DMAMUX peripheral base address.
channel	DMAMUX channel number.

static void DMAMUX_DisableChannel ( DMAMUX_Type *  base, uint32_t  channel  )

inlinestatic

This function disable DMAMUX channel.

Note

User must disable DMAMUX channel before configure it.

Parameters

base	DMAMUX peripheral base address.
channel	DMAMUX channel number.

static void DMAMUX_SetSource ( DMAMUX_Type *  base, uint32_t  channel, uint8_t  source  )

inlinestatic

Parameters

base	DMAMUX peripheral base address.
channel	DMAMUX channel number.
source	Channel source which is used to trigger DMA transfer.