CF card speed transfer

I manage to obtain ~2.5MB/s. However is it possible to obtain a better data rate ?

Bye

Doing an appropriate DMA interface in "hardware" might help.

-Michael

How can you have DMA on altcf : there's two MM Slave : ctl and ide ?

I know that's possible to make a DMA request from SRAM two DDR but how can you do that from DDR to altcf ?

Regards,

I meant: new "hardware" instead of altcf.

Building a new CF-port hardware processor that includes a state machine and some counters. Maybe using the DMA hardware blocks provided by Altera might be possible instead, but I have no knowledge on that.

Of course a completely new Linux device driver for that DMA-CF-port is necessary as a consequence with either way.

-Michael

Does anybody know how to implement the OCIDEC core on Avalon BUS?

This IP support the DMA process over IDE .

Thank you Michael

AFAIK, there is an Avalon/Wishbone adapter somewhere...

-Michael

Avalon/Wishbone adapter ?

That is very interresting. However I have look on google and I didn't found anything. Could you tell me where?

See

http://www.alterauserforums.org/forum/showthread.php?t=5500

and last mail in this thread:

http://www.alteraforum.com/forum/showthread.php?t=2238

Ok thank you...

So I have to translate the OCIDEC core from Wishbone to Avalon. However, do you thank that I will found driver for uClinux to drive my interface ?

I suppose there is no Linux-NIOS driver for DMA enabled CF. So you will need to create it.

-Michael