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Date   : Sun, 19 Apr 1998 22:12:09 +0100
From   : Theo Markettos <bbc-list@...>
Subject: Re: UVIPROM eprom programmer?

On Tue, 14 Apr 1998 13:36:59 +0100, mike@... said:

>
>
> Anyone remember the UVIPROM eprom programmer from Ground Control?
>
> This is an eprom programmer on a small cct board which attaches to the
> Beeb's user port.  It was supplied very cheaply as a bare board unit,
> and came with a ROM written by Solidisk with *TEST, *READ, *BLOW etc.
> commands.
>
> Can anyone remember if this had to have a hardware mod to use the *UPPER
> and *LOWER commands to blow the two halves of a 32k EPROM, or was this
> built in as standard?  I need to blow a 32K ROM for a PC video card and
> cannot remember whether the Uviprom needed to be modified to support
> *Upper and *Lower.

I wouldn't know, but could you not hardwire the relevant address line low,
blow the first 16K, then wire it high and blow the second 16K? 




-- 
Theo Markettos         Home:   theomarkettos@...          
Liphook                        Work:   marketto@...                     
Hampshire
UK                     Web site, including Acorn backup software
                       http://www.marketto.demon.co.uk/
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