[Coco] BASIC and Disk BASIC version numbers

Robert Gault robert.gault at worldnet.att.net
Sat Dec 13 07:22:38 EST 2003


Gene Heskett wrote:

> On Friday 12 December 2003 21:29, John E. Malmberg wrote:
> 
>>Bruce Calkins wrote:
>>
>>>The problem these controllers had with OS-9 is in the controller
>>>chips
>>>
>>>inability to cope with 1.78 MHZ operation.
>>
>>This is the first that I have heard about a 1.78 Mhz limitation for
>>the first generation disk controller.
>>
> 
> Ditto John.  I've got one that works just fine.  But I don't use it 
> because I've also got a no-halt.
> 
I've heard of this timing limitation with some controller boards. It was 
a cap on the board that corrupted a square wave. Changing the value 
corrected the problem. So it was not the controller perse but the board 
design at fault.




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