Part Number: MSPM0G3507
When I use ADC DMA FIFO mode to transfer 4 channel adc data, it seems that the DMA Sample Cnt does not make sense.It is configured as 2 or 3 instead of 4, and this will not have any impact on the ADC data transmission.
Part Number: MSPM0G3507
When I use ADC DMA FIFO mode to transfer 4 channel adc data, it seems that the DMA Sample Cnt does not make sense.It is configured as 2 or 3 instead of 4, and this will not have any impact on the ADC data transmission.
ADC-DMA FIFO Mode. Sequence Conversion and Repeat Sequence Conversion.
I transfer 4 channels ADC data trough DMA. When I set the DMA sample count to 4, does this mean that the transmission will start as soon as I sample 4 ADC data, or will it be for four groups 16 ADC data? At the same time, what is the difference between this and the DMA triggers ' MEM1 result loaded interrupt'?
ADC-DMA FIFO Mode. Sequence Conversion and Repeat Sequence Conversion.
I transfer 4 channels ADC data trough DMA. When I set the DMA sample count to 4, does this mean that the transmission will start as soon as I sample 4 ADC data, or will it be for four groups 16 ADC data? At the same time, what is the difference between this and the DMA triggers ' MEM1 result loaded interrupt'?
Hello,
The sample count is the amount of data that it sent every time a DMA trigger occurs. Basically, this will mean at whatever specific DMA trigger setup, the data transferred from the ADC conversions to whatever target destination will be the sample count value.
There's a subsystem you can use for reference: https://www.ti.com/lit/sd/slaae84b/slaae84b.pdf?ts=1772577025664&ref_url=https%253A%252F%252Fwww.google.com%252F