Lpc2000

--- In lpc2000@yahoogroups.com, Jean-Rene David <jrdavid@m...> wrote:
> * dasbento@a... <dasbento@a...>:
> > anyone knows if is possible change the mode of
> > the external interrupt when the arm is in
> > operation,
> 
> It seems the external interrupt registers are
> seriously broken.
> 
> I have read the LPC2214's errata sheet, namely
> version 1.6. Three erratas concern the external
> interrupt registers: EXTINT.1, EXTINT.2 and
> VPBDIV.1. 
> 
> However what I found was that the workarounds
> suggested:
>    
>    a. were not always necessary
>    b. didn't always work
> 
> Which is a bit unfortunate.
> 
> In a bit more detail:
> 
> I was able to configure EXTINT0 as rising edge
> sensitive *without* implementing any of the
> workarounds.
> 
> I was *not* able to configure EXTINT0 as rising
> edge *with* all the workarounds.
> 
> I was able to configure EXTINT3 as rising edge
> sensitive only with all the workarounds *and* only
> if EXTINT0 had not been configured previously.
> 
> If EXTINT0 had been configured as rising-edge
> sensitive first, then I wasn't able to configure
> EXTINT3 as rising-edge at all, workaround or not.
> 
> JR

Does anybody know if the problem is common to all the LPC2xxx family?
I'm considering using an LPC2xxx processor in my next design.

Krys