[Coco] Terasic DE1

[Salvador Garcia]

"However, even if it does the SRAM can be swapped out for the older chip if desired."


Swapped out? Looking at the pics of the item I don't see any socketed component.


Maybe the SRAM chip is not visible?


Salvador




-----Original Message-----
From: Dave Philipsen <dave at davebiz.com>
To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
Sent: Sat, Aug 22, 2015 1:07 am
Subject: [Coco] Terasic DE1


Folks, this is just a "heads up" on a Terasic DE1 being sold on eBay.  
I'm just
posting the information because it's a good deal and someone 
might like to buy
it for the CoCo3 FPGA.  I am in no way affiliated with 
the seller.  Here is the
link:

http://www.ebay.com/itm/131582773884

The seller is asking $138.95 (and
free shipping) but I know for a fact 
they will take $115 if you make that offer
(I know this because I just 
bought the other one they are selling).   You will
notice that it is 
being referred to as an Altera DK-CYCII-2C20N which is
exactly the same 
as the Terasic DE1.  It's just marketed by Altera instead of
Terasic.

Currently, the CoCo3 FPGA on this board is running lots of CoCo 3 DECB

software with drivewire support as well as NitrOS9 at 25 MHz now with 
support
for SD card as well (currently the SD card works only under 
NitrOS9).  I am
currently running NitrOS9 on this with a 4GB card and 
using two 128 MB
partitions.  The partitions could be much larger but I 
chose for now just to
limit them to 128 MB because I don't have enough 
stuff to fill them.  If you
are familiar with the megaread program this 
setup with SD card support will
complete megaread in less than 3.5 seconds.

Note:  It is possible that this
board has the newer SRAM chip which may 
limit the maximum clock speed to lower
than 25 MHz.  Gary is working on 
this and may have solved the issue already. 
However, even if it does 
the SRAM can be swapped out for the older chip if
desired.


Dave Philipsen



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