Re: [N8VEM-S100:6796] FP mini continued experiments

[Todd Goodman <tacom...@gmail.com>]

I think Andrew has been good about giving write access to N8VEM to
anyone who asks.  So that might work?

Todd

On Thu, Apr 23, 2015 at 1:10 AM, Don Caprio <ilv...@gmail.com> wrote:
> AFAIK, Josh is the only one I've heard that has a fully functional FPmini.
> He has a hacked up beta board working. Mine operates except for the Deposit
> function. To be honest I haven't spent the needed time to debug.
>
> I've only tested with Josh's 8080 board. I was hoping to give it a try on
> some
> different hardware configurations to see if it behaves differently. Maybe we
> should
> create a new group for front panel discussions. It would be great to
> have a common collaboration spot so were not searching through this group
> and
> emails. I suppose the N8VEM PBworks site would be best for now but I don't
> think everyone has write access. I'm open to ideas.
>
>
>
>
> On 04/20/15 10:48 PM, Ian McLaughlin wrote:
>
> Hello all,
>
> It's been a while since I've been able to sit down in front of my machine to
> try to debug the issues I'm having with the FP mini I recently built.
>
> As a recap, I've got the FP mini installed in a Northstar Horizon that is
> otherwise fully functional.  Basically, the FP Mini is not working correctly
> at all in this configuration.  The only function that works is the Examine
> function.  I can successfully load an address, and examine it.  I can
> manually change the address and examine other memory locations, and
> consistently get the correct values.  All other functions (examine next,
> deposit, deposit next) give me nonsense results.
>
> Tonight, I was working on an unrelated project - restoring a California
> Computer Systems 6116 16k RAM board.  Without boring you with the
> restoration details, I have a single 4K bank currently working (burning in
> the 2114 RAM chips a few at a time).  I thought I'd give the FP mini a try
> with this board.  I have more functionality!  I can Examine and Deposit
> successfully now!  Examine Next and Deposit Next are still giving me
> nonsense values (random addresses), but this is very encouraging!
>
> The difference?  The Northstar was originally running with a Northstar HRAM
> 64k dynamic RAM board, which has never given me any issues.  Now I'm using a
> CCS 16k Static RAM board.  I'm wondering if it's a static-vs-dynamic thing.
> Anyone else running the FP mini in a dynamic RAM machine?
>
> The list has been quiet about the FP mini recently.  I'd like to hear how
> everyone else is doing - does anyone else have more functionality than this?
>
> Thanks!
>
> Ian
>
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> Don Caprio
> ilv...@gmail.com
>
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