[Coco] NitrOS9 LEVEL 2 running on Multicomp

Fri Apr 7 02:19:54 EDT 2017

Hi Dave,
The size of the board does not matter to me at all.  What does matter are the features, capabilities and lots of everything that you could possibly want or need.  Whatever you like, I'll like as has been proven in the past.  Let your imagination fly high and free and let's see what lands on your work bench!  I'm prayin' for the best Multicomp09 board ever!   Something on there for everybody.  If somebody doesn't want a feature or capability, that part of the board can be left unpopulated.  I can hardly wait see what you come up with!  

Kip Koon
computerdoc at sc.rr.com
http://www.cocopedia.com/wiki/index.php/User:Computerdoc

-----Original Message-----
From: Coco [mailto:coco-bounces at maltedmedia.com] On Behalf Of Dave Philipsen
Sent: Thursday, April 06, 2017 11:20 PM
To: CoCoList for Color Computer Enthusiasts
Subject: Re: [Coco] NitrOS9 LEVEL 2 running on Multicomp

Ok, I'll definitely let you know.  I've got a board right now that has all of the basic circuitry on it and probably more than a person would ever need/want.  But the board is rather spacious as it was designed to fit a certain form factor and the connectors are not necessarily what you would be used to.  At any rate, the important thing is that the general design has been proven and tested.  I've got one on my bench that has been running continuously 24 hours a day for over a year now with no intervention other than an occasional firmware update here and there.  And I've got routines that will work for manipulating the flash memory, rtc, etc. that are working.  It shouldn't take too long to export the general design to a new board.  What is most important to you?  Ultra small board size?  Bunch of serial ports?  Digital I/O? Lots of memory?  etc, etc.?

Dave

On 4/6/2017 11:12 PM, Kip Koon wrote:
> Hi Dave,
> I have been reading your email about the Multicomp PDCB upgrade you are working on and I am truly impressed.  When you are ready to do a run of them, I would like several.  Thanks a bunch.
>
>
> Kip Koon
> computerdoc at sc.rr.com
> http://www.cocopedia.com/wiki/index.php/User:Computerdoc
>
> -----Original Message-----
> From: Coco [mailto:coco-bounces at maltedmedia.com] On Behalf Of Dave 
> Philipsen
> Sent: Thursday, April 06, 2017 7:09 PM
> To: CoCoList for Color Computer Enthusiasts
> Subject: Re: [Coco] NitrOS9 LEVEL 2 running on Multicomp
>
> Yes, the Cyclone II board that Grant uses is nice for a basic project but you run out of I/O pretty quickly.  I have a Cyclone IV board that I've worked with and am pretty happy with.  The build quality is also considerably better than the EP2C5 boards I have purchased.  At 16 bucks though, you can hardly go wrong!
>
> I've already got a working 6809 system with 512K SRAM (10 ns) and 4MB 
> Flash and a host of other little goodies but I have not pursued 
> getting
> OS9 to run on it.  It will run full tilt at 25 MHz without a problem.
> So my proposed new design won't take quite so much debugging since I'm already part way there. But, yes, a dual-headed board maybe even with two SD card sockets (1 for backup) and some other goodies and maybe even a little prototyping area...
>
> The FPGA card costs about double of what the EP2C5 board costs ($34) but you get double the logic elements (10K), more than triple the internal block RAM (~50K), and about double the I/O (164) so it's probably worth it if you're gonna use all of the stuff.
>
> Dave
>
>
> On 4/6/2017 5:21 PM, Neal Crook wrote:
>> Sorry, $25, not $20. ~$2.50 each (10 boards for ~$25). Actually, they 
>> guarantee to ship a minimum of 8 boards; I received 12 in my last 
>> batch of "10" (I guess they over-build and the yield is good). Yes, 
>> it's hard to find on dirtypcbs.com - you have to page though their 
>> shared boards until you find it. It's named Cyclone2v110.brd and (in 
>> case this helps your
>> recognition) it's RED.
>>
>> Dave: your board sounds intriguing (I considered a 2-headed board: 
>> one screen devoted to debugger) but I guess it will need a 
>> bigger/more pricey FPGA because the Cyclone II is pretty much *full*
>>
>> Neal.
>>
>> On 6 April 2017 at 20:16, Bill Gunshannon 
>> <bill.gunshannon at hotmail.com>
>> wrote:
>>
>>> ________________________________________
>>> From: Coco [coco-bounces at maltedmedia.com] on behalf of Dave 
>>> Philipsen [ dave at davebiz.com]
>>> Sent: Thursday, April 6, 2017 3:07 PM
>>> To: CoCoList for Color Computer Enthusiasts
>>> Subject: Re: [Coco] NitrOS9 LEVEL 2 running on Multicomp
>>>
>>> And, of course, that's just the PCB that the Cyclone II board 
>>> attaches to, not the Cyclone II board itself...
>>>
>>> Dave
>>>
>>>
>>> On 4/6/2017 2:04 PM, Neal Crook wrote:
>>>> Bill,
>>>>
>>>> the blank pcb 10cm x 10cm costs about $20 for a batch of 10. 
>>>> Easiest to just buy them then post here with your spares
>>>>
>>>> Neal
>>>>
>>> _______________________________
>>>
>>> I'm probably going to wait, but did you mean 10 boards for $20 or 
>>> $20 a board if you order 10?  If the former I may just order some of 
>>> the, too.  It's all for fun anyway.  Oh yeah, and order from who?  I 
>>> went to dirtyboards but couldn't figure out how to actually order 
>>> (or even
>>> find) anything on their website.  Not one of the better sites I have 
>>> visited.
>>>
>>> bill
>>>
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>>>
>
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