<< Previous Message Main Index Next Message >>
<< Previous Message in Thread This Month Next Message in Thread >>
Date   : Mon, 27 Feb 2006 18:31:51 +0000
From   : "Dr. David Alan Gilbert" <beeb@...>
Subject: Re: BEEBUG Eprom programmer

* Stephen Sudworth (ssudworth@...) wrote:
> Hello there,
>    
>   Has anyone out there built this programmer and got it to work correctly?

Yes - we used that for many years.

>   I suspect that I've blown the TL497, the 1ohm resistor has smoked
> and blown (i've now replaced this with a 10ohm as i've got no 1ohm's-
> it still gets VERY hot), and there is no voltage on the Vpp pin.

I have a memory that they published a load of fixes a month or two
after the original; I think they were quite extensive - so if you 
are going from the original article its likely to be wrong.

Having said that - its many many years since I looked at it so I can't
remember any details.

Dave
 -----Open up your eyes, open up your mind, open up your code -------   
/ Dr. David Alan Gilbert    | Running GNU/Linux on Alpha,68K| Happy  \ 
\ gro.gilbert @ treblig.org | MIPS,x86,ARM,SPARC,PPC & HPPA | In Hex /
 \ _________________________|_____ http://www.treblig.org   |_______/
<< Previous Message Main Index Next Message >>
<< Previous Message in Thread This Month Next Message in Thread >>