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@CHIP-RTOS C Library V2.00 - Hardware API


hal_stop_dma

Stop DMA transfer

int hal_stop_dma ( unsigned char channel );

Parameters

channel

DMA channel:
0 = DRQ0
1 = DRQ1

Return Value

0:   Success
-1:   Invalid DMA channel
-2:   DMA channel used for serial interface

Comments

Stops a DMA transfer (disables the DMA controller).   The transfer could be continued by first calling hal_get_dma_info to gather the current DMA state and then passing this state information to hal_start_dma to resume the transfer.

See Also

RTOS API

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


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