dma_t Struct Reference

DMA Handle prototype. More...

Data Fields
handle_t	handle
dma_config_t	config
uint8_t	module
uint8_t	stream
uint8_t	channel
dma_state_t	allocated
bool	initialized

Detailed Description

DMA driver context structure, used by every other function later on.

Example

// DMA driver context structure.
static dma_t dma;
 
// DMA driver configuration structure.
static dma_config_t dma_cfg;
 
// Fill structure with default values.
dma_configure_default( &dma_cfg );
 
// Allocate memory for object.
dma_open( &dma, &dma_cfg );

Field Documentation

handle

handle_t dma_t::handle

DMA handle.

config

dma_config_t dma_t::config

DMA configuration structure.

module

uint8_t dma_t::module

Specifies the module.

stream

uint8_t dma_t::stream

Specifies the stream.

channel

uint8_t dma_t::channel

Specifies the channel used for the specified stream.

allocated

dma_state_t dma_t::allocated

Is the object allocated or not?

initialized

bool dma_t::initialized

Is the object initialized or not?