Zephyr API Documentation 3.7.99
A Scalable Open Source RTOS
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DMA configuration structure. More...
#include <dma.h>
Data Fields | |
uint32_t | dma_slot: 8 |
Which peripheral and direction, HW specific. | |
uint32_t | channel_direction: 3 |
Direction the transfers are occurring. | |
uint32_t | complete_callback_en: 1 |
Completion callback enable. | |
uint32_t | error_callback_dis: 1 |
Error callback disable. | |
uint32_t | source_handshake: 1 |
Source handshake, HW specific. | |
uint32_t | dest_handshake: 1 |
Destination handshake, HW specific. | |
uint32_t | channel_priority: 4 |
Channel priority for arbitration, HW specific. | |
uint32_t | source_chaining_en: 1 |
Source chaining enable, HW specific. | |
uint32_t | dest_chaining_en: 1 |
Destination chaining enable, HW specific. | |
uint32_t | linked_channel: 7 |
Linked channel, HW specific. | |
uint32_t | cyclic: 1 |
Cyclic transfer list, HW specific. | |
uint32_t | source_data_size: 16 |
Width of source data (in bytes) | |
uint32_t | dest_data_size: 16 |
Width of destination data (in bytes) | |
uint32_t | source_burst_length: 16 |
Source burst length in bytes. | |
uint32_t | dest_burst_length: 16 |
Destination burst length in bytes. | |
uint32_t | block_count |
Number of blocks in transfer list. | |
struct dma_block_config * | head_block |
Pointer to the first block in the transfer list. | |
void * | user_data |
Optional attached user data for callbacks. | |
dma_callback_t | dma_callback |
Optional callback for completion and error events. | |
DMA configuration structure.
uint32_t dma_config::block_count |
Number of blocks in transfer list.
uint32_t dma_config::channel_direction |
Direction the transfers are occurring.
uint32_t dma_config::channel_priority |
Channel priority for arbitration, HW specific.
uint32_t dma_config::complete_callback_en |
Completion callback enable.
uint32_t dma_config::cyclic |
Cyclic transfer list, HW specific.
uint32_t dma_config::dest_burst_length |
Destination burst length in bytes.
uint32_t dma_config::dest_chaining_en |
Destination chaining enable, HW specific.
uint32_t dma_config::dest_data_size |
Width of destination data (in bytes)
uint32_t dma_config::dest_handshake |
Destination handshake, HW specific.
dma_callback_t dma_config::dma_callback |
Optional callback for completion and error events.
uint32_t dma_config::dma_slot |
Which peripheral and direction, HW specific.
uint32_t dma_config::error_callback_dis |
Error callback disable.
struct dma_block_config* dma_config::head_block |
Pointer to the first block in the transfer list.
uint32_t dma_config::linked_channel |
Linked channel, HW specific.
uint32_t dma_config::source_burst_length |
Source burst length in bytes.
uint32_t dma_config::source_chaining_en |
Source chaining enable, HW specific.
uint32_t dma_config::source_data_size |
Width of source data (in bytes)
uint32_t dma_config::source_handshake |
Source handshake, HW specific.
void* dma_config::user_data |
Optional attached user data for callbacks.