highPri#

bool DMA_CfgChannel_TypeDef::highPri

Select if channel priority is in the high or default priority group with respect to arbitration.

Within a priority group, lower numbered channels have higher priority than higher numbered channels.

enableInt#

bool DMA_CfgChannel_TypeDef::enableInt

Select if interrupt will be enabled for channel (triggering interrupt handler when dma_done signal is asserted).

It should normally be enabled if using the callback feature for a channel, and disabled if not using the callback feature.

select#

uint32_t DMA_CfgChannel_TypeDef::select

Channel control specifying the source of DMA signals.

If accessing peripherals, use one of the DMAREQ_nnn defines available for the peripheral. Set to 0 for memory-to-memory DMA cycles.

cb#

DMA_CB_TypeDef* DMA_CfgChannel_TypeDef::cb

User definable callback handling configuration.

Refer to structure definition for details. The callback is invoked when specified DMA cycle is complete (when dma_done signal asserted). Callback is invoked in interrupt context, and should be efficient and non-blocking. Set to NULL to not use the callback feature. Note

• Referenced structure is used by the interrupt handler, and must be available until no longer used. Thus, in most cases it should not be located on the stack.