[Coco] Faster CoCo for George... Was: Re: OT: Gramical nitpiking >My CC3>CC4

[Tim Fadden]

I am no electronic engineer by any stretch of the imagination, but would 
opto-isolators/couplers work for the FPGA/coco-perf's connections? It 
would make it electrically isolated from each other for sure. I don't 
have a clue how it would be done, but I do know they work. :-)

Tim Fadden

Joel Ewy wrote:

> George Ramsower wrote:

>   

>> ...

>> I would be tickled pink to have a 20mhz CC3 that would use my existing

>> hardware. I can easily get another keyboard and monitor. However, I

>> cannot easily replace all the stuff that plugs into a coco and the

>> software I've developed for it.

>> My CNC stuff would work faster and better also!

>>

>> This is selfish of me, I know.

>>

>>  I want MORE in a coco.

>>

>> More speed!

>>

>> Just simply.... more SPEED!

>>

>>     

>

> George, If you haven't already noticed Gary Becker's latest FPGA CoCo 3

> announcement in this list, you might want to take a look.  It appears

> after a first glance through the documentation that there is no CoCo

> compatible hardware expansion bus implemented in this design, so hooking

> your custom CNC motor controllers up to this beast may not be possible

> without some further work.  But it does run at about 20MHz, and the

> design is open.  So even if you don't feel like learning how to modify

> the design to do what you want, hooking up real CoCo peripherals to the

> FPGA board is likely to be something that many other users would want to

> do, so it may well be something that others will work on for you.  It is

> at exactly this point that James Jones will chime in and remind us that

> many FPGAs don't play nice with 5V logic.  :)  So making a CoCo

> expansion bus for this design may turn out to be non-trivial.  Still,

> this is a major step in the right direction towards a faster and more

> capable CoCo for the future.

>

> JCE

>

>   

>> George

>>

>> ...

>>

>> -- 

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>>

>>     

>

>

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