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@CHIP-RTOS C Library V2.06 - Hardware API


hal_get_dma_info

Get DMA info.

int hal_get_dma_info ( unsigned char channel,
                       Dma_Info * dmaInfo );

Parameters

dmaInfo

Output Parameter:   Pointer to Dma_Info data structure which will be set by this API with DMA state information.

SC1x Parameters

channel
DMA channel:
    0 = DRQ0
    1 = DRQ1

SC1x3 Parameters

channel
DMA channel:
    0 = DRQ0
    1 = DRQ1
    2 = DRQ2
    3 = DRQ3

Return Value

Existing DMA control register bit field.

Comments

The DMA is momentarily disabled during reading of status, and then restored to the enable state it was at.

See Also

RTOS API

This library function invokes a RTOS software interrupt. Refer to this RTOS API function's documentation for more details.

Supported since or modified in @CHIP-RTOS version

    SC12SC13SC11SC1x3
    V1.00V1.00V1.00V0.90

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