Lpc2000

Forget this question. Just a(another) really stupid mistake by me!!! 
Blushing......

Cheers
/Ake

Ake Hedman, eurosource wrote:

> Hi,
>
> need someone to discuss this problem with:
>
> I have a board based on a 2138 where I have P0.20 connected as an input
> to read a button.
>
> When I was debugging this app. I noticed that I sometimes get false
> triggers of the button. I hooked up the scope but it did not check any
> activity on the pin.
>
> Deduced that this must be a configuration problem and checked that the
> pin was set as an input ( It was ) and that the PINSEL1 had P0.20 as a
> GPIO (and it was).
>
> I then just set up a loop that read the pin and write out a '1' or a '0'
> on one of the serial channels showing its state and what I see is a
> perfect 50% duty cycle waveform is present on the pin. The scope on the
> same pin does not show anything.
>
> How can this be possible. Suggestions welcome.
>
> Regards
> /Ake
>
> -- 
> ---
> Ake Hedman (YAP - Yet Another Programmer)
> eurosource, Brattbergavägen 17, 820 50 LOS, Sweden
> Phone: (46) 657 413430 Cellular: (46) 73 84 84 102
> Company home: http://www.eurosource.se     
> Kryddor/Te/Kaffe: http://www.brattberg.com
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-- 
 ---
Ake Hedman (YAP - Yet Another Programmer)
eurosource, Brattbergavägen 17, 820 50 LOS, Sweden
Phone: (46) 657 413430 Cellular: (46) 73 84 84 102
Company home: http://www.eurosource.se      
Kryddor/Te/Kaffe: http://www.brattberg.com
Personal homepage: http://www.eurosource.se/akhe
Automated home: http://www.vscp.org



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