1.12.7.8 DMAC_ChannelIsBusy Function

C

bool DMAC_ChannelIsBusy(DMAC_CHANNEL channel)

Summary

Reads the busy status of a channel.

Description

The function returns true if the specified channel is busy with a transfer. This function can be used to poll for the completion of transfer that was started by calling the DMAC_ChannelTransfer() function. This function can be used as a polling alternative to the setting a callback function and receiving an asynchronous notification for transfer notification.

Precondition

DMAC should have been initialized by calling the DMAC_Initialize.

Parameters

Returns

- True - The channel is busy with an on-going transfer.

- False - The channel is not busy and is available for a transfer.

Example

bool returnVal;
returnVal = DMAC_ChannelIsBusy(DMAC_CHANNEL_0);
while( returnVal );

Remarks

None.