On 10/22/2015 6:11 PM, jwsmobile wrote:
I'm not sure if the author of this nice bit of work is on here, but
I'm looking at a board for this, the Altera DE-1. Unfortunately there
are a plethora of Altera DE-1 boards and much puzzlement by me as to
whether this is the right one. The page with the info is deficient in
details to tell.
The actual part which the author used is the key thing here, and not
just the name of the board. I'd appreciate opinions here as to
whether these will run PDP2011 or whether it will be a nice learning
board for my mistake pile.
http://pdp2011.sytse.net/wordpress/pdp-11/fpga-boards/de1/
There is currently what I think is a good specimen available if anyone
is interested.
http://www.ebay.com/itm/131621388597
It includes the software and docs. The current one I have was a
student version sans the documents and software.
I hope to get the thing going to play with sometime soon. There are
so many small boards out there for very little money once I get this
done and understand more about targeting this board and others I'd
like to see how cheap a board this could be made to run with give the
current boards.
There is currently an Arm/fpga Zilog chip board now made available
that would be a nifty board to make into a PDP11 if it comes out as
cheap as they promise it to be.
thanks
Jim
I have one of the DE1 CycloneII device boards and at this point that
family (CycloneII) is a bit old.
If you can get it really cheap (<<$50) go for it, but the last Altera
toolset that supports CycloneII is v13.0sp1 (v15.0 is current).
I have moved most all my new experimentation on to the CycloneIV and
CycloneV family devices.
If you plan to use a board going forward for some time, the newer
CycloneV based boards are a better choice:
http://www.terasic.com.tw/cgi-bin/page/archive.pl?Language=English&Cate…
In particular the DE0-CV has a lot of nice features for implementing a
PDP-11 ($150):
http://www.terasic.com.tw/cgi-bin/page/archive.pl?Language=English&Cate…
Or if you want to go light on the hardware design and lean more on
embedded software, the DE0-NANO-SOC board ($99):
http://www.terasic.com.tw/cgi-bin/page/archive.pl?Language=English&Cate…
The DE0-NANO CycloneIV board ($79) is also a good choice:
http://www.terasic.com.tw/cgi-bin/page/archive.pl?Language=English&Cate…
At this point I would stay away from CycloneIII or CycloneII boards
(unless you can get one very cheap) as the tech is older.
Don
FYI -
I designed a daughter board for the DE0 nano that has the ENC424J600
Ethernet Device that he uses, an SD Card, and a FT4232 with four serial
ports over a USB interface.
I've got one built but haven't tried it out. Yet.
I think I've got a few spare bare boards if someone wants to try one.
It is fine pitch SMT.
Rob.