IWR1642: which line in capture demo code (sdk1.1) indicates the trigger to start edma transfer from ADC to CBUFF?

hi, 

In capture demo of sdk1.1, which line indicates the trigger to start edma transfer from ADC to CBUFF?

e.g.

in capture_common.c, line 1733~1750, there is EDMA start trigger driven by chirp semaphore.

if( (ptrDmaCfg->currDstAddr + ptrDmaCfg->dmablockSize) < ptrDmaCfg->endDstAddr)
{
retVal = EDMA_setDestinationAddress (ptrDataPathObj->dmaHandle, (uint16_t) ptrDmaCfg->channelId,
SOC_translateAddress(ptrDmaCfg->currDstAddr,SOC_TranslateAddr_Dir_TO_EDMA,NULL));
if(retVal < 0)
{
System_printf("Error: Set EDMA destination address failed with Error[%d]\n", retVal);
}

/* Trigger DMA transfer */
if ((retVal = EDMA_startDmaTransfer(ptrDataPathObj->dmaHandle, ptrDmaCfg->channelId))
!= EDMA_NO_ERROR)
{
System_printf("Error: EDMA_startTransfer() failed with error code = %d\n", retVal);
}
ptrDataPathObj->edmaState = Capture_EDMA_STATE_BUSY;

ptrDmaCfg->currDstAddr += ptrDmaCfg->dmablockSize;