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Discussion Groups | LPC900 | Re: Digest Number 95
Find help, specifications and source code for the LPC900. The LPC900 challenges Microchip and AVR based on the worlds most popular 8-bit architecture the 80C51. With a 2-clock core the LPC900 series is a high performance, very flexible and low cost 8-bit microcontroller family. Designers using or interested in these devices are encouraged to share their know-how and ask questions.
Re: Digest Number 95 - Sheth Pragnesh - Sep 27 0:01:00 2005
Hellow Jim,
Dos this problem apply to all LPC900 and LPC2000 series devices?
Regards,
Pragnesh
> Philips Semiconductors answer:
> Thank you for your interest in Philips Semiconductors!
>
> The problem you are describing is caused when the part gets an
> incomplete reset (the voltage goes down below the voltages where the
> brown detectors work, but not within a few tenths of a volt from
> ground.) As a result the program counter can get corrupted. If you use
> a Watchdog timer to reset the part if the program counter runs away,
> this should not be a problem. The other solution is to use an external
> reset supervisor.
>
> Regards,
>
> Jim E. > ---------------------------------------------------------------------------
> This e-mail is sent to you from the website of Philips Semiconductors
> Please do not reply to this message. >
>
> ________________________________________________________________________
> ________________________________________________________________________ >
> ------------------------------------------------------------------------
> Yahoo! Groups Links >
>
> ------------------------------------------------------------------------
(You need to be a member of LPC900_users -- send a blank email to LPC900_users-subscribe@yahoogroups.com )
Dos this problem apply to all LPC900 and LPC2000 series devices?
Regards,
Pragnesh
> Philips Semiconductors answer:
> Thank you for your interest in Philips Semiconductors!
>
> The problem you are describing is caused when the part gets an
> incomplete reset (the voltage goes down below the voltages where the
> brown detectors work, but not within a few tenths of a volt from
> ground.) As a result the program counter can get corrupted. If you use
> a Watchdog timer to reset the part if the program counter runs away,
> this should not be a problem. The other solution is to use an external
> reset supervisor.
>
> Regards,
>
> Jim E. > ---------------------------------------------------------------------------
> This e-mail is sent to you from the website of Philips Semiconductors
> Please do not reply to this message. >
>
> ________________________________________________________________________
> ________________________________________________________________________ >
> ------------------------------------------------------------------------
> Yahoo! Groups Links >
>
> ------------------------------------------------------------------------
(You need to be a member of LPC900_users -- send a blank email to LPC900_users-subscribe@yahoogroups.com )
Re: Digest Number 95 - lpc2100_fan - Sep 27 13:19:00 2005
Hello Pragnesh,
this problem does not exist in the LPC2000 devices.
Bob
--- In lpc900_users@lpc9..., "Sheth Pragnesh" <pragnesh@i...>
wrote:
> Hellow Jim,
> Dos this problem apply to all LPC900 and LPC2000 series devices?
> Regards,
> Pragnesh >
>
> > Philips Semiconductors answer:
> > Thank you for your interest in Philips Semiconductors!
> >
> > The problem you are describing is caused when the part gets an
> > incomplete reset (the voltage goes down below the voltages where the
> > brown detectors work, but not within a few tenths of a volt from
> > ground.) As a result the program counter can get corrupted. If you use
> > a Watchdog timer to reset the part if the program counter runs away,
> > this should not be a problem. The other solution is to use an external
> > reset supervisor.
> >
> > Regards,
> >
> > Jim E.
> >
> >
> >
---------------------------------------------------------------------------
> > This e-mail is sent to you from the website of Philips Semiconductors
> > Please do not reply to this message.
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
________________________________________________________________________
> >
________________________________________________________________________
> >
> >
> >
> >
------------------------------------------------------------------------
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
------------------------------------------------------------------------
> >
> >
> >
> >
>
(You need to be a member of LPC900_users -- send a blank email to LPC900_users-subscribe@yahoogroups.com )
this problem does not exist in the LPC2000 devices.
Bob
--- In lpc900_users@lpc9..., "Sheth Pragnesh" <pragnesh@i...>
wrote:
> Hellow Jim,
> Dos this problem apply to all LPC900 and LPC2000 series devices?
> Regards,
> Pragnesh >
>
> > Philips Semiconductors answer:
> > Thank you for your interest in Philips Semiconductors!
> >
> > The problem you are describing is caused when the part gets an
> > incomplete reset (the voltage goes down below the voltages where the
> > brown detectors work, but not within a few tenths of a volt from
> > ground.) As a result the program counter can get corrupted. If you use
> > a Watchdog timer to reset the part if the program counter runs away,
> > this should not be a problem. The other solution is to use an external
> > reset supervisor.
> >
> > Regards,
> >
> > Jim E.
> >
> >
> >
---------------------------------------------------------------------------
> > This e-mail is sent to you from the website of Philips Semiconductors
> > Please do not reply to this message.
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
________________________________________________________________________
> >
________________________________________________________________________
> >
> >
> >
> >
------------------------------------------------------------------------
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
------------------------------------------------------------------------
> >
> >
> >
> >
>
(You need to be a member of LPC900_users -- send a blank email to LPC900_users-subscribe@yahoogroups.com )