CCS/MSP432P401R: MSP432 DMA

user4336030

Part Number: MSP432P401R

Tool/software: Code Composer Studio

When using MSP432DMA to move data, how many data can be moved in every DMA cycle by adopting BASIC mode?
I want to move 1648 data each time, can I do that?
I want to trigger AD sampling by timers, AD sampling to trigger DMA transmission data, and to process data after 1648 points each time, how can I achieve thanks in this process.
Thanks。

over 7 years ago

0 Bob Landers over 7 years ago

TI__Expert 8510 points

Xue,

You can refer to a number of previous posts on this.

Post 1- refers to how to handle more than 1024 transfers via DMA using interrupts.

Post 2- Sampling Audio via DMA (seems very close to your application).

Other info for reference:

E2E Post - MSP432 ADC14 and DMA Usage with driverlib
The maximum transfers in a single DMA cycle is 1024.
See the MSP432 Technical Reference menu, section 11.1.

Regards,

Bob L.

0 Bob Landers over 7 years ago in reply to Bob Landers

TI__Expert 8510 points

Xue,
Did the above answer your question?
-Bob L.

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CCS/MSP432P401R: MSP432 DMA