[Coco] Paul Barton's 8Meg board, Roger Taylor's DrivePak, and NitrOS-9

[Paul Barton]

I have most of the documentation for the Lattice CPLD installed on the
NoCan series. They were done in schematic format. There are probably 10
versions of each type that I played with during that time including the IDE
CPLD.

Paul aka IdeZilla aka BartSr (BartSenior).


On Tue, Jun 10, 2014 at 9:54 AM, Paul Barton <paultbarton.1944 at gmail.com>
wrote:

> Paul Barton here, the CC3 NoCan 8/16/32/64MB guru. It's too bad that I
> sent all of my hardware pieces back to John which leaves me with nothing to
> play with (anymore). I too hope that John can come back to the group or
> just an email stating how he is.
>
> Paul
>
>
>
> On Mon, Jun 9, 2014 at 9:44 PM, Kip Koon <computerdoc at sc.rr.com> wrote:
>
>> Hi Everyone!
>> I'd like to get my hands on an 8-Meg board myself.  The last time I talked
>> with John Turner he was still working on his version of Paul Barton's
>> 8-Meg
>> Memory Board.  I wonder how he's coming along.  He was adding some other
>> goodies as well like a true serial port and parallel port and maybe some
>> other things like a Real Time Clock but I don't remember for sure.  He
>> told
>> me some time ago that he was using some surface mount components and later
>> decided to redesign the PCB using only through-hole technology.  I have
>> not
>> heard from John in some time.  I hope and pray he is alright.  Take care
>> my
>> friends.
>>
>> Kip Koon
>> computerdoc at sc.rr.com
>> http://www.cocopedia.com/wiki/index.php/Kip_Koon
>> http://computerpcdoc.com/
>>
>>
>>
>> -----Original Message-----
>> From: Coco [mailto:coco-bounces at maltedmedia.com] On Behalf Of Robert
>> Gault
>> Sent: Monday, June 09, 2014 11:22 PM
>> To: CoCoList for Color Computer Enthusiasts
>> Subject: [Coco] Paul Barton's 8Meg board, Roger Taylor's DrivePak, and
>> NitrOS-9
>>
>> Would I be lucky enough to have a reader who uses both the Barton 8-Meg
>> board
>> and Roger's DrivePak? Usually I use a 6309 512K Coco3 but was recently
>> testing
>> my 6309 8-Meg DrivePak system. It will work perfectly with NitrOS-9 3.3.0
>> until
>> I try to load the DrivePak drivers. Then there is a complete hardware
>> crash.
>>
>> If found that 6809 NitrOS-9 v3.2.9 works fine with the 8-Meg board, so
>> something
>> has changed which I can't seem to find.
>>
>> Roger's DrivePak uses $FF6C-$FF6E which has been assigned to a MOD pak in
>> the
>> OS-9 defs but I don't have those drivers installed. The software turns off
>> the
>> interrupts while accessing $FF6C-$FF6E in any case. Also there is no
>> problem
>>
>> with a 512K system.
>> The Barton board uses $FF9B and $FFAx the same way, for the most part, as
>> NitrOS-9 handles 2Megs.
>>
>>   FF9B  Reserved.
>>          1MB and 2MB bits, Write only.
>>          Bit 7 - na
>>          Bit 6 - na
>>          Bit 5 - 8MB Memory Bit          NoCan3 bits for 8MB.
>>          Bit 4 - 4MB Memory Bit          NoCan3 bits for 8MB.
>>          Bit 3 - 8MB Video Bit           NoCan3 bits for 8MB.
>>          Bit 2 - 4MB Video Bit           NoCan3 bits for 8MB.
>>          Bit 1 - 2MB Video Bit   Disto & NoCan2/3 bits for 2MB.
>>          Bit 0 - 1MB Video Bit   Disto & NoCan2/3 bits for 1MB.
>>
>> $FF9B must be set before $FFAx go get the full 8Megs.
>>
>> I don't see why but there is some weird interaction between this hardware
>> and
>> v3.3.0. I will be testing older versions of NitrOS-9 to see if there is
>> one
>> that
>> works.
>>
>> Robert
>>
>> --
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>> Coco at maltedmedia.com
>> http://five.pairlist.net/mailman/listinfo/coco
>>
>>
>> --
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>> Coco at maltedmedia.com
>> http://five.pairlist.net/mailman/listinfo/coco
>>
>
>
>
> --
> Paul T Barton
> paultbarton.1944 at gmail.com
>



-- 
Paul T Barton
paultbarton.1944 at gmail.com