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Lpc2000

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

Message

Re: Reset time

2005-02-25 by charlesgrenz

Hi Danilo,

  There you have me. When I initially talked with Philips Apps about
this, they gave me the wrong information the first time and the second
time the 80 ms value. I would assume that since the "wake up timer" is
watching everything to make sure that all is up to snuff before
allowing execution to start. From 10ns to 100us or as soon as it
passes the 2.8V range.

regards,
Charles

--- In lpc2000@yahoogroups.com, "Danilo Franco" <danilo@q...> wrote:
> Hi Charles,
> 
> Thanks for your prompt reply.
> 
> So once POR is activated, what is the RST rise time? I have been
designing reset control circuit taking into account that noise on this
line could reset the microcontroller.
> 
> Regards,
> 
> Danilo
> 
> 
> ----- Original Message ----- 
>   From: charlesgrenz 
>   To: lpc2000@yahoogroups.com 
>   Sent: Friday, February 25, 2005 9:34 AM
>   Subject: [lpc2000] Re: Reset time
> 
> 
> 
>   Morning Danilo,
> 
>     80ms if you need to use one. Since the 2138 has a POR circuit, you
>   do not need any external reset control.
> 
>   regards,
>   Charles
> 
> 
>   --- In lpc2000@yahoogroups.com, "Danilo Franco" <danilo@q...> wrote:
>   > Does anyone know how much time (or instruction cycle) RST line must
>   be pulled down to reset LPC2138? 
>   > 
>   > 
>   > Regards,
>   > 
>   > Danilo
>   > 
>   > 
>   > [Non-text portions of this message have been removed]
> 
> 
> 
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