void DMA1_Stream7_IRQHandler() {
DMA1 ->HIFCR |= DMA_HIFCR_CTCIF7; // Clear interrupt flag.
if (NextBufferSamples) {
StartAudioDMAAndRequestBuffers();
} else {
DMARunning = false;
}
}
bool ProvideAudioBufferWithoutBlocking(void *samples,int numsamples)
{
if(NextBufferSamples) return false;
DisableInterrupt(DMA1_Stream7_IRQn);
NextBufferSamples=samples;
NextBufferLength=numsamples;
if(!DMARunning) StartAudioDMAAndRequestBuffers();
EnableInterrupt(DMA1_Stream7_IRQn);
return true;
}
bool ProvideAudioBufferWithoutBlocking(void *samples, int numsamples) {
int loop=0;
if (NextBufferSamples)
return false;
NextBufferSamples = samples;
NextBufferLength = numsamples;
ptr = &DAC->DHR12R1;
ptrSR = &DAC->SR; //chck for dma underrrun
ptrDOR = &DAC->DOR1;
if (!DMARunning)
StartAudioDMAAndRequestBuffers();
return true;
}