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jrmymllr

Platinum Boarder 		Click here to see the profile of this user

2008/09/15 18:59

Re:Again...more ram!

cb1,

Yes, that would be of interest. Without checking, I think I would have enough I/O. I'm listening to Shoutcast streaming audio on it right now. 96Kbit is about as high as I can go with occasional dropouts. 64Kbit is fairly solid. But, my buffer is nearly all remaining RAM, only about 28K!

So, I assume the ASIC interfaces with a separate SRAM?

BTW I sent you an email at your contact address in your profile.

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cb1

Platinum Boarder 		Click here to see the profile of this user

2008/09/15 23:14

Re:Again...more ram!

jrmymllr-

unbelievable - I just now moused over the avatar & discovered the contact info! I will send you an email as spam filters block much on my side.

Your project sounds extremely challenging and I'd love to see how/if I can assist.

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mpanetta

Senior Boarder 		Click here to see the profile of this user

2008/09/27 16:46

Re:Again...more ram!

But can you execute directly from it?

I just noticed that STMicro has released a series of new Cortex parts with an EBI, I would love to see LMI counter their offering (ESP since the LMI parts seem to be cheaper in general).

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cb1

Platinum Boarder 		Click here to see the profile of this user

2008/09/27 21:48

Re:Again...more ram!

Assume your asking me - re: asic >- sram.
Better minds than mine are needed to execute directly from the bulk ram. In most Aps. users will use SPI or 8b parallel to talk to the sram. Our asic can transact @ 10MHz - but its my belief that this is too slow to enable execution. What one could do is "pull the desired data" from external ram into internal - and then execute from that.

A spin-off is a TFT frame buffer with >64KB sram "left over!" Now you can direct- connect to most color TFTs "and" gain an additional 64KB of sram for your ap...

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