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Lpc2000

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Re: [lpc2000] Re: Reset of circuit

2004-12-16 by Kerem Or

Then let the watchdog expire. It will reset the chip but will not change the 
state of the reset pin. That means your external hardware (if you have any) 
connected to the LPC reset pin will not get reset.

kerem


----- Original Message ----- 
From: "albin_martinsson" <fredrik_m@...>
To: <lpc2000@yahoogroups.com>
Sent: Thursday, December 16, 2004 5:00 PM
Subject: [lpc2000] Re: Reset of circuit


>
>
> Isn't there any way of doing this by just software? I have no chance
> of connecting some of the IO-pins just for reset. I want to do it
> from software.
>
> /Fredrik
>
>
> --- In lpc2000@yahoogroups.com, "Kerem Or" <k.or@s...> wrote:
>> You may use an external reset circuit with open drain output and
> connect one
>> of the LPCs I/O pins which defaults to input with weak pullup to
> the reset
>> pin of LPC. When you define this I/O pin as output and drive to
> low will
>> reset the LPC. At the same time the I/O pin will become an input
> pin again
>> releasing the reset line. So the LPC will start normally.
>>
>> Kerem
>>
>> ----- Original Message ----- 
>> From: "albin_martinsson" <fredrik_m@t...>
>> To: <lpc2000@yahoogroups.com>
>> Sent: Thursday, December 16, 2004 10:36 AM
>> Subject: [lpc2000] Reset of circuit
>>
>>
>> >
>> >
>> > Hi
>> >
>> > Anyone know how to reset an LPC2129 from software? Just calling
>> > address 0x00000000 is not good, course the registers also needs
> to
>> > be reseted.
>> >
>> > /Fredrik, V-Teknik, Sweden
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> > Yahoo! Groups Links
>> >
>> >
>> >
>> >
>> >
>> >
>> >
>> >
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> Yahoo! Groups Links
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