[Coco] I have a bad/ good 6809?

[rietveld rietveld]

I was afraid it was my disk controller. Glad it's just the 6809. Guess that means it's time to swap in a 6309

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  Original Message
From: L. Curtis Boyle
Sent: Tuesday, January 21, 2020 8:10 PM
To: CoCoList for Color Computer Enthusiasts
Reply To: CoCoList for Color Computer Enthusiasts
Subject: Re: [Coco] I have a bad/ good 6809?


Yes. That’s a sign that the CPU is blown - maybe the NMI line? I can’t remember the details, but I have had to replace my CPU for the exact same reason.

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> On Jan 21, 2020, at 5:26 PM, rietveld rietveld <rietveldh at hotmail.com> wrote:
>
> I have a 6809 in one of my coco3 's. It seems to work perfectly with my sdc, my hard drive but not with the fd501?    When I try to do a DSKINI the computer goes crazy and locks up.   I swapped this cpu into another coco3 with a different disk controller (disto) and it does the same thing.   When I replace the 6809 with a different one the drive works perfectly.    As anyone ever seen this before?
>
> Sent from my BlackBerry
>
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