[Coco] Moving 6809 to socket

Salvador Garcia salvadorgarciav at yahoo.com
Tue Jan 10 14:03:06 EST 2017


" A machined socket is also easier to remove (destructively)"

That's interesting, I would have thought that the dual wipe socket would be easier to destructively remove.

Regards, Salvador

      From: Zippster <zippster278 at gmail.com>
 To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com> 
 Sent: Thursday, January 5, 2017 4:25 PM
 Subject: Re: [Coco] Moving 6809 to socket
   
And a ZIF socket may have a significantly larger footprint too.

It might not fit.

I would go with a machined socket, because I perceive them to be
higher quality, though there are definitely people who prefer dual-wipe
sockets.  A machined socket is also easier to remove (destructively)
in my opinion, should the need ever arise.

Why would you need to swap between 6809 and 6309 CPUs?

AFAIK the only way in which the 6309 wouldn’t be compatible with
6809 code would be if you were using illegal opcodes that would
trigger the 6309’s error trapping (active in both native and 6809 emulation
modes).

- Ed



> On Jan 5, 2017, at 4:12 PM, RETRO Innovations <go4retro at go4retro.com> wrote:
> 
>  I don't think I'd use a ZIP socket (40 pin ones are tall and
>  expensive).  If there is some distinct need to have access to both
>  CPUs, it is a small effort to build a PCB to hold both CPUs such that
>  one can be selected via switch.
> 
>  jim
> 
>    On January 5, 2017 at 4:11 PM S Klammer <sklammer at gmail.com> wrote:
> 
>    What are people's thoughts on using a ZIF socket? Although the same,
>    would
>    allow swapping 6809 and 6309, etc.
> 
>    Shain
>    On Jan 5, 2017 3:32 PM, "Dave Philipsen" <dave at davebiz.com> wrote:
> 
>    I agree. Your going to spend probably a half-hour doing the
>    conversion so
>    why skimp on the socket? The machined pin socket is generally more
>    reliable.
> 
>    Dave
> 
>    On 1/5/2017 1:42 PM, John Mautz wrote:
> 
>    I like machine tooled sockets, but they cost a little more...
> 
>    [1]http://www.jameco.com/z/6100-40D-40-Pin-Machine-Tooled-Low-P
>    rofile-IC-Socket-0-6-Inch-Wide_41136.html
> 
>    On Thu, Jan 5, 2017 at 2:32 PM, Carlos Camacho <idevgames at gmail.com>
>    wrote:
> 
>    Looking to move a 6809 from the motherboard to a socket.
> 
>    Looking at Jameco, they had a few 40 pin sockets.
>    Would this be an appropriate model?
>    [2]https://www.jameco.com/webapp/wcs/stores/servlet/
>    ProductDisplay?storeId=10001&langId=-1&catalogId=10001&pa=
>    41111&productId=41111
> 
>    Cheers,
> 
>    --
>    ---Carlos A. Camacho
> 
>    --
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> References
> 
>  1. http://www.jameco.com/z/6100-40D-40-Pin-Machine-Tooled-Low-P
>  2. https://www.jameco.com/webapp/wcs/stores/servlet/
>  3. https://pairlist5.pair.net/mailman/listinfo/coco
>  4. https://pairlist5.pair.net/mailman/listinfo/coco
>  5. https://pairlist5.pair.net/mailman/listinfo/coco
> 
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