[Coco] Grant Searles SBC

[Matthew Stock]

I googled this:  http://searle.hostei.com/grant/6809/Simple6809.html

Matt


On Wed, May 6, 2015 at 7:29 PM, Zippster <zippster278 at gmail.com> wrote:

> But you are getting garbage?  More than just a glitchy char or three?
>
> Link to the circuit?  Not even sure what chips are involved.
>
> - Ed
>
>
> > On May 6, 2015, at 6:16 PM, Bill Nobel <b_nobel at hotmail.com> wrote:
> >
> > Hi guys.  This is a shout out to the Hardware Experts out there.  I am
> trying to build this unit on a breadboard and am having some issues.  I am
> following the circuit to a tee.  Powering up I get 1.843 mhz on the E & Q
> lines R/W is working.  But sometimes when I hit reset my BA line goes high
> throwing CPU into HALT state even though my HALT is tied High.  Also on the
> terminal window I am getting nothing but garbage @ 115200 baud.  The one
> difference to the circuit I am using a FTDI instead of the 9 pin serial
> plug.  I verified the FTDI by connecting to a old desktop pc using
> Hyperterm so the chip is working.  But on the SBC I get nothing.  I even
> went to the extent of swapping out all the chips and verified by hand the
> Eprom code to see if it Burned properly.
> >
> > Any suggestions or help would be appreciated.
> >
> > Bill Nobel
> >
> >
> > --
> > Coco mailing list
> > Coco at maltedmedia.com
> > https://pairlist5.pair.net/mailman/listinfo/coco
>
>
> --
> Coco mailing list
> Coco at maltedmedia.com
> https://pairlist5.pair.net/mailman/listinfo/coco
>