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Re: [lpc2000] Re: NC Pin's

2006-02-11 by Tom Walsh

Guillermo Prandi wrote:

>I think I read somewhere that most unused pins should be set to output 
>*HIGH* rather than low, because some of them have internal pull-ups and 
>therefore a low would draw some current. That doesn't apply of course 
>to open-collector outputs.
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Good point, thanks.  I guess a little study would need to be in order to 
see what pins are pulled which way.

TomW




>Guille
>
>--- In lpc2000@yahoogroups.com, Xtian Xultz <xultz@...> wrote:
>  
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>>Em Sex 10 Fev 2006 13:22, philipphk escreveu:
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>>
>>>Hi @ all
>>>I have an problem because I cant find description what I have to do
>>>with NC (unused) Pin's at the LPC214x because I'm just using USB one
>>>UART and perhaps 1 or 2 GPIO Pins?
>>>
>>>Regards
>>>Philipp
>>>
>>>      
>>>
>>Set them as GPIO, as output, and in firmware put em at low level. And 
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>>
>on the 
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>>board, dont connect them.
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-- 
Tom Walsh - WN3L - Embedded Systems Consultant
http://openhardware.net, http://cyberiansoftware.com
"Windows? No thanks, I have work to do..."
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