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&CategoryNo=13&List=Simple#Category167
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&CategoryNo=167&No=921&PartNo=1
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&CategoryNo=167&No=941
The DE0-NANO CycloneIV board ($79) is also a good choice:
http://www.terasic.com.tw/cgi-bin/page/archive.pl?Language=English&CategoryNo=139&No=593
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
