Tool/software:
Hi,
May I ask about MSPM0G DMA?
I want to copy ADC data to SRAM.
I set DMA as this (for debug, set trigger software)
//DMA trigger is internal, Trigger select (Trigger Mapping can see in Datasheet) DMA->DMATRIG[0].DMATCTL |= DMA_DMATCTL_DMATINT_INTERNAL | (DMA_DMATCTL_DMATSEL_MASK & 0); // ADC0 :23 // word(32-bit) transfer, source address no-change, destination address no-change, repeat single transfer mode DMA->DMACHAN[0].DMACTL |= DMA_DMACTL_DMASRCWDTH_WORD | DMA_DMACTL_DMASRCINCR_UNCHANGED | DMA_DMACTL_DMADSTINCR_UNCHANGED | DMA_DMACTL_DMATM_RPTSNGL; // source address DMA->DMACHAN[0].DMASA |= (0x40000000 + 0x1280); //(unsigned int)(&(ADC0->ULLMEM.MEMRES[0])); // Destination Address DMA->DMACHAN[0].DMADA |= 0x20203000;//(unsigned int)(&DMA0_ADC0_0); // DMA channel size DMA->DMACHAN[0].DMASZ |= (DMA_DMASZ_SIZE_MASK & 0x000F ); // F word DMA->DMACHAN[0].DMACTL |= DMA_DMACTL_DMAREQ_REQUEST | DMA_DMACTL_DMAEN_ENABLE; // DMA start and enable
In main loop, it do DMA->DMACHAN[0].DMACTL |= DMA_DMACTL_DMAREQ_REQUEST | DMA_DMACTL_DMAEN_ENABLE; // DMA start,enable
for software trigger.
But Destination memory is not changed.
To:
from:
It was same as if set trigger as ADC' DMA event.
Could you let me know what wrong?
Thanks,
GR