On Tue, Sep 06, 2016, Cameron Kaiser wrote:
> > I see a few mentions online about the 128 supporting 9600 natively, but
> > no real details. Do you have any to share?
>
> IIRC -- and I haven't had to write Commodore user port serial code in a
> looooong time -- it's much like a 64 doing 2400bps on the user port, it's
> just bitbanging it at a higher rate instead of using the Kernal, and at
> 2MHz. 4800bps is definitely achievable and considered stable. I suppose you
> could overdrive it to 9600 and I've heard of it being done, but I've never
> written such code myself.
>
> When I used Kermit on my 128 as my means of Internet access, I had a
> SwiftLink.
>
> > I wonder if it'd be worth turning off the device's UP9600 support and
> > seeing if the 128 will still talk 9600 to it. (If I do keep it on,
> > apparently the 128 will be able to do 19200 -- but I'm not holding my
> > breath, based on my experience with 9600.)
>
> I would be very impressed to get 19.2k out of that!
Supposedly the CommodoreServer.com service is capable of 38400 -- on an
unmodified 64. I haven't gotten it to work yet (though the WiModem is
supposed to be capable).
--
Eric Christopherson
