Part Number: MSPM0L1306
Other Parts Discussed in Thread: SYSCONFIG, MSPM0G3507
the PMW is Edge-aligned Down Counting mode, once the counter reaches Zero, the CC register is updated one time.
we need update 500 data to CC register, whether we could use DMA mode to achieve this function?
If Yes, how to set the DMA?
500 data are stored in the Flash.
Many thanks
BR
Kelly
Hi, Kelly
You can have a try!
1. Add DMA in sysconfig manually, Set DMA trigger:
2. PWM trigger publisher:
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For other DMA configuration, please refer to other code example that using DMA.
A DMA transfer data to DAC is recommended: dac12_dma_sampletimegen_LP_MSPM0G3507_nortos_ticlang
/* Configure DMA source, destination and size */
DL_DMA_setSrcAddr(
DMA, DMA_CH0_CHAN_ID, (uint32_t) &gOutputSignalSine64[0]);
DL_DMA_setDestAddr(DMA, DMA_CH0_CHAN_ID, (uint32_t) & (DAC0->DATA0));
DL_DMA_setTransferSize(
DMA, DMA_CH0_CHAN_ID, sizeof(gOutputSignalSine64) / sizeof(uint16_t));
DL_DMA_enableChannel(DMA, DMA_CH0_CHAN_ID);
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Looking forward to your success.
Regards,
Helic
