[Coco] Re: Coco 4

[peak at mail.polarcomm.com]

Richard
Have one what? A schematic of a cocoxt?.Yeah, I want it.
You have an actual cocoxt? Woudn't want to pay much.
Thanks for offering though!
Eric


---- Original message ----
>Date: Wed, 07 Jan 2004 16:07:51 -0300
>From: "Richard E. Crislip" <rcrislip at neo.rr.com>  
>Subject: [Coco] Re: Coco 4  
>To: CoCoList for Color Computer Enthusiasts 
<coco at maltedmedia.com>
>
>Hello peak at mail.polarcomm.com
>
><hand frantically raised and waving> I have one 8-). Ya 
wanit?
>
>On 01/07/04, peak at mail.polarcomm.com wrote:
>> Yep
>> Burke's cocoxt did "interface" to an ISA HD controller 
card.
>> However, I was thinking of a more general ISA bus.
>> Now, of course we cant really squeeze all of a PC's 1Meg 
>> memory plus it's 64k I/O into a coco's address space but 
>> since a lot of those ISA cards only used about 4each port 
for 
>> one function we CAN fit some of them.
>> Coco's SCS gives us 32 bytes to play with. 32 divided by 4 
>> would give us 8 4-port devices. Also some of the ISA 
>> controller cards used 8k memory for HD BIOS. So the only 
>> thing we have to do is "Re-Map" the memory and I/O 
addresses 
>> into cocos CTS(memory) and SCS(I/O) spaces. This would be 
>> easier if there was a real standard for I/O ports on a PC.
>> The sort-of Defacto standards will just have to be 
sufficient 
>> and any ISA cards which we use will need to be examined to 
>> determine thier port addresses. If anyone knows of an ISA 
bus 
>> multifunction card with HD,FD,Parralell,2 serial or so 
please 
>> let me know. We should probably take a look at several 
>> different ones and come to a general consensus about what 
>> ports to use for what!  
>> 
>> ---- Original message ----
>>> Date: Tue, 6 Jan 2004 15:18:33 -0500
>>> From: <jadonaldson at charter.net>  
>>> Subject: Re: Re: [Coco] Coco 4  
>>> To: CoCoList for Color Computer Enthusiasts 
>> <coco at maltedmedia.com>, CoCoList for Color Computer 
>> Enthusiasts <coco at maltedmedia.com>
>>> 
>>>  If you look at the Burk & Burk interface, it interfaced
>>> to 8 bit ISA Hard Drive interfaces. 
>>> 
>>> John Donaldson
>>>> 
>>>> From: peak at mail.polarcomm.com
>>>> Date: 2004/01/06 Tue PM 01:18:53 EST
>>>> To: CoCoList for Color Computer Enthusiasts 
>> <coco at maltedmedia.com>
>>>> Subject: Re: [Coco] Coco 4
>>>> 
>>>> Well Neil,
>>>> an ISA bus slot is really not to difficult to add to a 
>> coco.
>>>> As long as we are talking about an older style 8-bit ISA 
>> bus!
>>>> How you ask? Very similar to the way peter stark did it 
on 
>> his
>>>> "PT-68K". See Radio Electronics magazine January thru 
>>>> September 1988!
>>>> 
>>>> 
>>>> ---- Original message ----
>>>>> Date: Mon, 5 Jan 2004 15:54:25 -0800
>>>>> From: "Neil Morrison" <neilsmorr at hotpop.com>  
>>>>> Subject: Re: [Coco] Coco 4  
>>>>> To: "CoCoList for Color Computer Enthusiasts" 
>>>> <coco at maltedmedia.com>
>>>>> 
>>>>> 
>>>>> I _REALLY_ wanted to use ISA boards for I/O etc. 
because 
>>>> they are so
>>>>> cheap, but translating the addresses etc. just looked 
>> like 
>>>> too much
>>>>> of nightmare. Too bad because a HD/FD 1 parallel/2 
serial 
>>>> board is
>>>>> around $10 IIRC. I figure a nice little horizontal 
>>>> case/power supply
>>>>> would be useable, however.
>>>>> 
>>>>> Neil
>>>>> 
>>>>> ----- Original Message ----- 
>>>>> From: <jdaggett at gate.net>
>>>>> 
>>>>> 
>>>>>> Neil
>>>>>> 
>>>>>> I invision a mother board type layout using micro ATX 
>> form 
>>>> factor.
>>>>>> Maybe with PCI type slots and headers to plug in for 
>> IDE 
>>>> and floppy
>>>>>> drives. Maybe able to package in a reagular PC case 
>> with 
>>>> PS2 style
>>>>>> mouse and keyboard.
>>>>>> 
>>>>>> just some wild ideas
>>>>>> 
>>>>>> james
>>>>> 
>>>>> 
>>>>> -- 
>>>>> Coco mailing list
>>>>> Coco at maltedmedia.com
>>>>> http://five.pairlist.net/mailman/listinfo/coco
>>>> 
>>>> -- 
>>>> Coco mailing list
>>>> Coco at maltedmedia.com
>>>> http://five.pairlist.net/mailman/listinfo/coco
>>>> 
>>> 
>>> 
>>> -- 
>>> Coco mailing list
>>> Coco at maltedmedia.com
>>> http://five.pairlist.net/mailman/listinfo/coco
>> 
>Regards
>-- 
>Cruisen                                                      
_|_
>              on AutoPilot with an Amiga   ---o-( )-o---   
and a CoCo
> 
>                                             Richard
>
>
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