Agree will have to tighten things up Dave. Fortunately Andrew/N8VEM is a second source for most of this stuff, schematics etc. but the actual builds/bugs etc. are critical I agree. Not helping is the fact that when Andrew and I started off we did not really thing about different versions/updates etc. so the past version numbering is not too good. To this day, I have problems here with these darn mezzanine boards. I actually had 4 versions made before we got to V06C. Never want to go back to them, what a nightmare – many wasted chips.
John
From: n8ve...@googlegroups.com [mailto:n8vem...@
googlegroups.com ] On Behalf Of yoda
Sent: Wednesday, July 23, 2014 2:25 PM
To: n8ve...@googlegroups.com
Cc: yo...@r2d2.org; mon...@vitasoft.org
Subject: Re: [N8VEM-S100:4682] Re: S-100-16M-SRAM-MEZZ-V6c Board - Status --- OK
John
Thanks for the update - probably should come up with a strategy to keep a history on each board as over time we are going to have different versions of some boards with different build configurations and not everyone is going to get their boards built before it might be superseded by a new board. But if someone wants to go back and look at thing say for V1 of SMB board your site doesn't have the old schematics and board layout so you have to go to the PBworks site and hope someone created a folder for older board and archived things. I think this is going to be a problem over time that we probably need to think about.
Dave
On Wednesday, July 23, 2014 3:54:04 PM UTC-5, monahanz wrote:Opp’s sorry about that Dave. I have redone the “build notes” to include both mezzanine boards. See:-
http://s100computers.com/My%
20System%20Pages/16M%20RAM% 20Board/16MG%20RAM%20Board.htm
John
From: yoda [mailto:yo...@r2d2.org]
Sent: Wednesday, July 23, 2014 9:52 AM
To: n8ve...@googlegroups.com
Cc: mon...@vitasoft.org
Subject: Re: [N8VEM-S100:4675] Re: S-100-16M-SRAM-MEZZ-V6c Board - Status --- OK
Hi John
Can you put back on your web site both versions of the mezzanine board - so that people can see the original with the patch. I am not sure I am going to move up to the new mezzanine boards (probably will) but now there is no reference to the original board and the patches required to make it work. I think when you update web site you need to leave what was originally there and then add new sections (probably with revision number and/or date for new section) - not delete and replace - the same has happened with other boards.
Dave
On Wednesday, July 23, 2014 11:29:45 AM UTC-5, monahanz wrote:Yes Todd from Arrow. They are specked as 5V but the seem to work OK at 3.3V.
John
From: n8ve...@googlegroups.com [mailto:n8vem...@googlegroups.
com ] On Behalf Of gek...@gmail.com
Sent: Wednesday, July 23, 2014 6:26 AM
To: n8ve...@googlegroups.com
Subject: [N8VEM-S100:4675] Re: S-100-16M-SRAM-MEZZ-V6c Board - Status --- OK
John -
I assume this was with the CY62167ELL-45ZXI ram?
Todd -
Let the group know when you're ready to ship out a few!
- Gary
On Tuesday, July 22, 2014 9:09:44 PM UTC-4, monahanz wrote:Todd just a quick note to let you know the V06c version of the mezzanine boards checked out fine on the 16MG S100 RAM board. I hammered them fairly good with the 80386 board, they did fine.
Soldering the chips on to the board is quite tricky. I found it best to aligen one corner, then orientate the chip and do the diagonally opposite corner, then run the salder tip along the pins. With a wet tip there is enough solder on the pins and the board for contact. However I had one chip where the pin did not make contact, took me a while to locate it. These boards are definatly not for anybody with shakey hands
Will next do the 32MB 80386 board, but for now I feel confident sending them out to all 16MB board users.
Thanks Andrew and Dave for all your help on these.
John
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