DMA_initParam Struct Reference

Used in the DMA_init() function as the param parameter. More...

#include <dma.h>

Data Fields
uint8_t	channelSelect
uint16_t	transferModeSelect
uint16_t	transferSize
uint8_t	triggerSourceSelect
uint8_t	transferUnitSelect
uint8_t	triggerTypeSelect

Detailed Description

Used in the DMA_init() function as the param parameter.

Field Documentation

uint8_t DMA_initParam::channelSelect

Is the specified channel to initialize.
Valid values are:

• DMA_CHANNEL_0
• DMA_CHANNEL_1
• DMA_CHANNEL_2
• DMA_CHANNEL_3
• DMA_CHANNEL_4
• DMA_CHANNEL_5
• DMA_CHANNEL_6
• DMA_CHANNEL_7

Referenced by DMA_init().

uint16_t DMA_initParam::transferModeSelect

Is the transfer mode of the selected channel.
Valid values are:

• DMA_TRANSFER_SINGLE [Default]
• DMA_TRANSFER_BLOCK
• DMA_TRANSFER_BURSTBLOCK
• DMA_TRANSFER_REPEATED_SINGLE
• DMA_TRANSFER_REPEATED_BLOCK
• DMA_TRANSFER_REPEATED_BURSTBLOCK

Referenced by DMA_init().

uint16_t DMA_initParam::transferSize

Is the amount of transfers to complete in a block transfer mode, as well as how many transfers to complete before the interrupt flag is set. Valid value is between 1-65535, if 0, no transfers will occur.

Referenced by DMA_init().

uint8_t DMA_initParam::transferUnitSelect

Is the specified size of transfers.
Valid values are:

• DMA_SIZE_SRCWORD_DSTWORD [Default]
• DMA_SIZE_SRCBYTE_DSTWORD
• DMA_SIZE_SRCWORD_DSTBYTE
• DMA_SIZE_SRCBYTE_DSTBYTE

Referenced by DMA_init().

uint8_t DMA_initParam::triggerSourceSelect

Is the source that will trigger the start of each transfer, note that the sources are device specific.
Valid values are:

• DMA_TRIGGERSOURCE_0 [Default]
• DMA_TRIGGERSOURCE_1
• DMA_TRIGGERSOURCE_2
• DMA_TRIGGERSOURCE_3
• DMA_TRIGGERSOURCE_4
• DMA_TRIGGERSOURCE_5
• DMA_TRIGGERSOURCE_6
• DMA_TRIGGERSOURCE_7
• DMA_TRIGGERSOURCE_8
• DMA_TRIGGERSOURCE_9
• DMA_TRIGGERSOURCE_10
• DMA_TRIGGERSOURCE_11
• DMA_TRIGGERSOURCE_12
• DMA_TRIGGERSOURCE_13
• DMA_TRIGGERSOURCE_14
• DMA_TRIGGERSOURCE_15
• DMA_TRIGGERSOURCE_16
• DMA_TRIGGERSOURCE_17
• DMA_TRIGGERSOURCE_18
• DMA_TRIGGERSOURCE_19
• DMA_TRIGGERSOURCE_20
• DMA_TRIGGERSOURCE_21
• DMA_TRIGGERSOURCE_22
• DMA_TRIGGERSOURCE_23
• DMA_TRIGGERSOURCE_24
• DMA_TRIGGERSOURCE_25
• DMA_TRIGGERSOURCE_26
• DMA_TRIGGERSOURCE_27
• DMA_TRIGGERSOURCE_28
• DMA_TRIGGERSOURCE_29
• DMA_TRIGGERSOURCE_30
• DMA_TRIGGERSOURCE_31

Referenced by DMA_init().

uint8_t DMA_initParam::triggerTypeSelect

Is the type of trigger that the trigger signal needs to be to start a transfer.
Valid values are:

• DMA_TRIGGER_RISINGEDGE [Default]
• DMA_TRIGGER_HIGH

Referenced by DMA_init().

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The documentation for this struct was generated from the following file:

• dma.h