[Coco] BASIC and Disk BASIC version numbers

[Arthur Flexser]

I seem to recall that replacing the disk controller chip with a Fujitsu
8877(?) (8877A?) solves that problem.

Art

On Sat, 13 Dec 2003, Bruce Calkins 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.
> >
> > -John
> > wb8tyw at qsl.network
> > Personal Opinion Only
> 
> One Reference, 'Tandy's Little Wonder" By F.G. Swygert, Published by FARNA
> Systems.  Page 70, 2ed column, Referring to the 26-3022, "It is not reliable
> at double speed disk operation even if DECB has been modified", and so on.
> 
> I have seen at least one other reference to this "issue", but, I can't put
> my hands on it at this moment.
> 
> I have seen other references to this problem.  Quite simply the chip set
> can't function fully at speeds over one MHz.  I lost quite a bit of hair
> attempting to run OS-9 Level 2 on that controller.
> 
> 
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