#61
|
|||
|
|||
Quote:
remember it's only 1.5" x 1.5" in total size |
#62
|
|||
|
|||
Quote:
You may want to change them to 805s. They are small, but at least workable - IF you have a good eye and iron. Of course if you have them built then who cares? |
#63
|
||||||
|
||||||
Quote:
Quote:
Quote:
Quote:
Just an idea of course. If there's the available I/O then I say we try to offer the Bank support too as an option. Concerning the Slink addressing: D0..D7, R/W, DevSel, A0, A1, PH0, RES Just A0 and A1? Nothing larger? Reset too? I don't I've seen that used on a Memory card before, or maybe I'm thinking of something else? Either way we should have some I/Os left over using the XC9572. Can't hurt to wire some up and leave them as options that we and others can use for different projects. That is assuming we don't use up all the cells with the SDRAM program. As mentioned above we have some options when it comes to the CPLD if more I/Os are needed and the cost isn't that major of a factor. Quote:
Quote:
Weird. Is that pop up URL bocked for you too? If so just copy and paste the URL in to your address bar in your browser. Damn Hot Link protection seems to be over protecting me again. Need to add this address as 'Safe' I guess. On a side note: If/when we release this project I was going to do some instructional videos on how to actually use the Xilinx software and the code. So as we figure out what the code is doing and why please document it in the code so I and others will have something to go on. Just be as basic and as descriptive as possible. The better things are documented the better our item will sell, or so I hope. And who knows? I may even be able to follow along too! ;-) |
#64
|
||||
|
||||
Quote:
Quote:
Quote:
Quote:
|
#65
|
|||
|
|||
Hey Guys.
Any headway in the SDRAM project? When I spoke to Grant he hasn't really done anything since he's busy at work on some other CPLD project. So Glenn... anything? I was going to post an RFQ on GetAFreelancer.com and see how many people would take the project for $250. Do you have a testing platform already setup? If so I could email code for testing as it comes in. I'd be more then willing to share code in lieu of some help testing it. Of course if you're already working on something and don't think it's too far off before we have something to test with then I'll hold off a while longer. As I said before I'd much rather give you the cash then someone else. |
#66
|
|||
|
|||
Quote:
I would like to see that going sucessfully before I do any work on the sdram interface. Quote:
I may be able to start wiring that up next week. I will at least get the power and jtag going ... we will need to get a feel for pin placement before I can start to actually wire anything beyond that up. Quote:
|
#67
|
|||
|
|||
Hey Guys.
Quick note about 100 Pin QFPs - ALWAYS clean them after soldering! I had some odd issues that I just couldn't find. Seems some Brakleen (Pep Boys degreasor) and a toothbrush did the trick. I wash the PCB and CPLD and then brush each side of the CPLD pins twice. Then some compressed air to finish the job. The Brakleen evaporates and leave zero residue. So make a note and add this procedure to all 100 QFPs you solder. |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Wanted: MEK6800D2 display / entry board | W0XEU | Classifieds | 0 | 07-21-2010 01:08 PM |
880-107 1k static memory board | benalford | Altair 8800 | 10 | 02-25-2010 05:12 PM |
Dazzler Board, Altair Basic? | lovenewyawkcity | Altair 8800 | 0 | 09-12-2008 09:34 PM |
Question about wiring rs232 cable for 882SIO board | phe | Altair 8800 | 25 | 09-30-2007 02:17 AM |
Help needed wiring display board to expansion board | phe | Altair 8800 | 8 | 04-03-2007 01:07 AM |