MPC8541E DMA transfer

[Kumar Gala]

I dont see any reason you couldn't use the internal DMA engine on the  
MPC8541E to do what you need.  You will just need to schedule the  
work every 10ms.

- kumar

On Aug 3, 2005, at 10:04 AM, Bizhan Gholikhamseh \(((bgholikh\))) wrote:

>
> Hi all,
> I am developing a linux driver (2.6.10) for Freescale MPC8541E
> (customized board) to read and write 8 buffers (each buffer is 960  
> bytes
> long) every 10 ms to/from a custom made PCI card with on board DSP  
> Chip.
> The chip's internal and external memories are memory mapped to the CPU
> address space.
> For reason that is beyond the discussion here, the DMA request line on
> the PCI card is not connected although the PCI card has DMA
> capabilities.
> So what are my options?
> Could I still do DMA transfer from the Host to the device?
>
> Many thanks in advance,
> Bizhan
>
> <ATT293768.txt>
>