[Coco] ceramics ...

[mmarlett at isd.net]

Kevin,

I doubt that the Motorola parts will run at 14+MHZ if they are spec'd at
8MHZ.

I remember your project(s), not that I don't care for them. Just not for
me. I have done what you are trying to do and it is not a project to start
on. Walk before you can run. That is all. I'm all for as many CoCo projects
as people will do. GREAT machine to learn from. The board is only a small
part of the project. When I get to that part, I know I'm very close to
being done. Most of the work is done in the homework and design stage.
Follow the layout rules, terminate, impedance match and it will work as
designed.

Mark
Cloud-9






>Mark,
>
>	The parts are speced at 8.
>
>	I already told you about the project idea. I don't think you liked it. 
>"CPU Paks" I would love to have a program pak with a 68000, or an 80186, 
>or a TI9900, or a 6502, or ... . I have no idea how to do the board. Any 
>suggestions.
>
>	And of course without a job none of this is going anywhere.
>
>					kevin
>
>Mark Marlette wrote:
>> At 9/2/2004 09:04 PM -0700, you wrote:
>> 
>> Kevin,
>> 
>> Most parts have a designed clock that they were certified at and 
>> assigned when they were tested at their manufactured date. What are 
>> those clock speeds of the said chips? Seems to me to be a data book look

>> up process. If theory doesn't work for you then just hook them up and 
>> try them out at the speed you want them to run. A bit of work since they

>> are just chips and require a bit of work to connect up and test. Let us 
>> know what you find out though. Have some plan(s) for a new CoCo project 
>> here?
>> 
>> Mark
>> Cloud-9
>> 
>> 
>>> Hi,
>>>
>>>         No hardware. Just a pair of chips. So the question refers to 
>>> them. Think they would run at 14.3181818?
>>>
>>>                                         kevin
>>>
>>> Mark Marlette wrote:
>>>
>>>> At 9/2/2004 11:57 AM -0700, you wrote:
>>>> Kevin,
>>>> Overclocking is generally not a good thing to do but it depends what 
>>>> you are trying to do. For instance, overclocking the CoCo3 is not a 
>>>> good thing due to the GIME.
>>>> Can you tell us a bit more about the hardware that these CPUs are 
>>>> connected to?
>>>> Regards,
>>>> Mark
>>>> Cloud-9
>>>>
>>>>> Hi,
>>>>>
>>>>>         I have a 68010 and a 68008. They are both 8s. Any
>>>>> thoughts as to how high they could be SAFELY overclocked?
>>>>> The plain 6809e in my deuce seems to run fine at 1.7 for
>>>>> extended periods. But it does have a heat sink.
>>>>>
>>>>>                                         kevin
>>>>>
>>>>> Stephen H. Fischer wrote:
>>>>>
>>>>>> Hi,
>>>>>> I thought I had one, but it is a 6800. I found a 6820 and a 8008.
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> -- 
>>>>> Coco mailing list
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>>>>> http://five.pairlist.net/mailman/listinfo/coco
>>>>
>>>>
>>>
>>>
>>> -- 
>>> Coco mailing list
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>> 
>> 
>> 
>> 
>
>
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