DMAMUX: DMA Channel Multiplexer Driver

Read Guidance

This document consists of sections titled with Driver Overview, Data Structures, Enumerations, Functions, etc., each with an overview list and detailed documentation. It is recommended to read the Driver Overview first for it includes a comprehensive description of the peripheral, driver and driver changes. Other sections give detailed information for APIs, enums, macros, etc., for your further reference.

Driver Overview
	DMAMUX Peripheral and Driver Overview
	Content including 1) peripheral features, work logic and work method; 2) driver design logic and use method; 3) typical use case.
	The Driver Change Log
	The current dmamux driver version is 2.0.0.

Enumerations
enum	dmamux_dma_channel_t {   kDMAMUX_DMAChannel0 = 0U,   kDMAMUX_DMAChannel1,   kDMAMUX_DMAChannel2,   kDMAMUX_DMAChannel3 }
	List of Dmamux dma channels. More...

DMAMUX Channel functional group
static void	DMAMUX_ConnectChannelToTriggerSource (DMAMUX_Type *base, dmamux_dma_channel_t eChannel, dma_request_source_t eSource)
	Connect the DMAMUX channel to trigger source. More...
static void	DMAMUX_DisconnectChannelFromTriggerSource (DMAMUX_Type *base, dmamux_dma_channel_t eChannel)
	Disconnect the DMAMUX channel. More...

Enumeration Type Documentation

enum dmamux_dma_channel_t

Enumerator
kDMAMUX_DMAChannel0	Dmamux dma channel 0.
kDMAMUX_DMAChannel1	Dmamux dma channel 1.
kDMAMUX_DMAChannel2	Dmamux dma channel 2.
kDMAMUX_DMAChannel3	Dmamux dma channel 3.

Function Documentation

static void DMAMUX_ConnectChannelToTriggerSource ( DMAMUX_Type *  base, dmamux_dma_channel_t  eChannel, dma_request_source_t  eSource  )

inlinestatic

This function will connnect a source to the specify dma channel and enable that channel

Parameters

base	DMAMUX peripheral base address.
eChannel	DMAMUX channel index, dmamux_dma_channel_t.
eSource	DMA request source, dma_request_source_t, it is defined in SOC header file.

static void DMAMUX_DisconnectChannelFromTriggerSource ( DMAMUX_Type *  base, dmamux_dma_channel_t  eChannel  )

inlinestatic

This function will disable the specified channel and reset the channel source.

Parameters

base	DMAMUX peripheral base address.