Driving DAC from circular buffer using DMA and TIM - why is it not working? As the title says, I've got a (circular) buffer of uint16_t values that I want to send to the DAC every time the timer updates. It seems like it's 95% working, in that if I manually trigger the DAC:for (int i = 0; i < 10000; ++i)
{
LL_DAC_TrigSWConversion(DAC1, LL_DAC_CHANNEL_1);
HAL_Delay(1);
}I can see my waveform on the output pin. But when I try to have the DMA send the values to the DAC, the output never changes.One complication is that I need to run in two modes - in one mode I'm taking the ADC input, processing it, and sending that to the DAC, in the other mode (I'm calling "inject" mode) the ADC is ignored and the DAC values come from my memory buffer.The code to switch between modes looks like this:if (inject && !Inject)
{
// Turn on inject mode
// HAL_DAC_Start_DMA(&hdac1, DAC_CHANNEL_1, (uint32_t*)Transfer, 4096, DAC_ALIGN_12B_R);
LL_DMA_DisableChannel(DMA1, LL_DMA_CHANNEL_3);
while (LL_DMA_IsEnabledChannel(DMA1, LL_DMA_CHANNEL_3)); // Wait till of
