[Opendispense] Questions - new memory map

Bernard Blackham bernard@blackham.com.au
Mon Aug 11 08:47:24 2003

On Mon, 11 Aug 2003 12:53:23 +0800 Adrian Chadd <adrian@ucc.gu.uwa.edu.au> wrote:
> Is the CPU socketed? How is it mounted on the board?

Nope. Soldered straight in.

On Mon, Aug 11, 2003 at 03:10:50PM +0800, Harry McNally wrote:
> Hi Bernard and Adrian
> I had a cunning plan to install a 32 pin machine pin socket to replace
> the 28 pin EPROM socket. We could then run four more signals up on to the
> mezzanine board through the extra pins but the mezzanine can still be
> removed and replaced easily (even restore the original EPROM if necessary).
> If you look at the scan of the top of the board (top.PDF or top.JPG) which
> I think is on CVS there, the following mods were what I had in mind:

Sounds very feasible! (and ingenious :)

> I've used this trick before and it was a tidy solution. It almost looked
> like a bought one :) 

So does anybody object? :)

> If you like, we could do a rework session and snap a few images of the
> steps for the web records.

Probably not enough time to do it in a night - how are weekends for



 Bernard Blackham 
 bernard at blackham dot com dot au