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Discussion Groups | AT91SAM ARM | DMA + TCM
For users of the Atmel AT91SAM7 and AT91SAM9 ARM CPU chips. Atmel has taken a new direction by combining on chip flash and ram with the ARM CPU on a single die. This provides low cost devices for small systems using the ARM CPU. This group is to exchange information to help users get started and learn how to use the devices.
DMA + TCM - "ICLI, Bekir (EXT)" - Apr 22 7:17:39 2009
Hi all,
I got two questions:
1- Can DMA Controller perform data transfer from Tightly Coupled Memory?
If yes,
2- Would it be faster than normal DMA transfer?
Best,
Bekir
(You need to be a member of AT91SAM -- send a blank email to AT91SAM-subscribe@yahoogroups.com )
I got two questions:
1- Can DMA Controller perform data transfer from Tightly Coupled Memory?
If yes,
2- Would it be faster than normal DMA transfer?
Best,
Bekir
(You need to be a member of AT91SAM -- send a blank email to AT91SAM-subscribe@yahoogroups.com )
Re: DMA + TCM - 42Bastian - Apr 22 7:58:48 2009
Hi Bekir
> 1- Can DMA Controller perform data transfer from Tightly Coupled Memory?
If you look into the manual (I did for the 9263), it tells you that AHB
masters can access TCM at fixed addresses.
> 2- Would it be faster than normal DMA transfer?
Don't know. Why not check it ... ?
--
42Bastian
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(You need to be a member of AT91SAM -- send a blank email to AT91SAM-subscribe@yahoogroups.com )
> 1- Can DMA Controller perform data transfer from Tightly Coupled Memory?
If you look into the manual (I did for the 9263), it tells you that AHB
masters can access TCM at fixed addresses.
> 2- Would it be faster than normal DMA transfer?
Don't know. Why not check it ... ?
--
42Bastian
------------------
Parts of this email are written with invisible ink.
Note: SPAM-only account, direct mail to bs42@...
------------------------------------
______________________________
controlSUITE™ software. Comprehensive. Intuitive. Optimized.
Real-world software for real-time control. Details Here!
(You need to be a member of AT91SAM -- send a blank email to AT91SAM-subscribe@yahoogroups.com )