[Coco] CoCo3 FPGA project analog boards

[spereira1952 at comcast.net]

Hi Ed, 

Thanks very much for your reply! 

No worries about the DE-1. I have an "old" version DE-1 with the "correct" RAM chip, and also a "new" version DE-1 that Dave Phillipsen has already done the RAM swap for me. So that's not an issue for me. 

Thanks for the extra info that you will be creating the Analog Board to specifically fit together with the DE-1 as I had hoped. What I would appreciate (at the appropriate time, when the info is available) is a list of parts that I will need to order so that I can acquire all the correct standoffs and screws and whatever to put the stack together. That will be an excellent finished product for me! 

Thanks again, 
smp 
- - - 
Stephen Pereira 
Bedford, NH 03110 
KB1SXE 


----- Original Message -----

From: "Zippster" <zippster278 at gmail.com> 
To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com> 
Sent: Friday, April 15, 2016 9:54:04 AM 
Subject: Re: [Coco] CoCo3 FPGA project analog boards 

It should be Stephen. 

New DE1 boards are available from Digikey and Terasic. They may have an incompatible RAM 
chip on board. Dave has been replacing these with a CoCo3 FPGA compatible chip. He also 
sells refurbished DE1s suitable for the project as well, subject to when he’s able to acquire units. 

I’m willing to swap the RAM out as well for people to help availability. 

I’ll be doing the analog boards, and making any revisions necessary to ensure they will stack 
and attach properly with the DE1 board, plexiglass cover at the top of the stack, with the proper 
standoffs, screws, nylon washers, whatever is required. 

- Ed 


> On Apr 15, 2016, at 7:24 AM, spereira1952 at comcast.net wrote: 
> 
> FWIW, all I am interested in is a good set of directions for what to buy (and where) in order to end up with the DE-1, Analog Board, and the original plexiglass top all stacked together with proper standoffs, and all screwed together solidly. Will this be possible? 
> 
> Thanks, 
> smp 
> - - - 
> Stephen Pereira 
> Bedford, NH 03110 
> KB1SXE 
> 
>