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Lpc2000

Index last updated: 2026-04-28 23:31 UTC

Message

Re: IAR, JLINK and PLL problems

2004-09-10 by Richard

Reset duration needs to be 10ms at power-up and 300ns thereafter.  I 
have seen problems with boards where the RC reset circuit provided a 
reset pulse on power-up which was too short.

Rich

--- In lpc2000@yahoogroups.com, "itsjustimpossible" <simonjh@b...> 
wrote:
> --- In lpc2000@yahoogroups.com, "douglasbolton" <doug@c...> wrote:
> > --- In lpc2000@yahoogroups.com, "itsjustimpossible" 
<simonjh@b...> 
> > wrote:
> > > Are you using a reset IC on your target board?
> > > 
> > 
> > 
> > Yes we had to put a reset device in, we use a max809 (140mS 
delay) 
> > and haven't had any problems. With an RC network we had trouble 
> with 
> > the debugger and actual boot ups of the board in standalone.
> 
> Great, I will give it a try.
> 
> Thanks
> Simon

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