IWR1443: What is the difference between DMA and EDMA?

wang york

Intellectual 715 points

Part Number: IWR1443

I found the DMA usage in capture demo of SDK 1.1, and edma usage in cbuff.

What is the difference?

What kind of scenarios for this 2 type?

Thanks!

over 7 years ago

0 db_woodall over 7 years ago

TI__Mastermind 21025 points

Hi Wang,

Please take a look at the IWR1443 TRM here: www.ti.com/.../swru520a.pdf

Section 1.3.3 and Chapter 6 describes the MSS_DMA, and Section 1.3.11 and Chapter 11 describes the EDMA.

More can be said about the two than can be described here, but while both types are efficient and can perform basic data copies, EDMA is more flexible. Programming is a bit different as well, in that EDMA uses memory based "PaRAM sets" and register based Transfer and Channel controllers. DMA is programmed via registers.

0 wang york over 7 years ago in reply to db_woodall

Intellectual 715 points

Got it!
Thanks a lot!

Sensors

Sensors forum

IWR1443: What is the difference between DMA and EDMA?