[Coco] Turbo DriveWire

[Darren A]

I just took a look at Earl's code in that article and, like the 230400
bps technique, it does require that pins 1 and 2 on the bit banger
cable be connected together.  However, his code operates at 57600 bps
on a CoCo 3 only, and is interrupt driven.  Unfortunately, that method
doesn't work at 230k because the overhead involved in servicing the
interrupt is too high.

Darren

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On 5/8/11, Aaron Wolfe wrote:
> This piqued my interest so I looked through the World of 68 Micro's
> that I have here.  Found an article in Feb 1995 about doing 57.6k via
> the bitbanger, maybe this would achieve 115k with double speed poke?
> It is not the technique used in Darren's 230k coco3/115k coco 2 code,
> but it's a good article nonetheless.   Did anyone ever complete a full
> terminal program based off that article?
>
>
> On Sun, May 8, 2011 at 3:01 AM, Earl Casper <earlcasper at gmail.com> wrote:
>> Just to put in my two cents worth, back in the days of the 68 micros
>> magazine I wrote an article with code for a 115k bps bitbanger project for
>> the coco 2 using what I believe is the same technique. As usual I never
>> followed up on it. - earlcasper
>>