Lpc2000

Thanks guys, but now I realized there might be a problem with the power supply. I'll check all the I/O pins again, after this issue is solved.
Di
charlesgrenz <charles.grenz@...> wrote:

Do any of the other I/O lines that are configured as an Output exhibit
the same problem or is it just that one (P0.10). 

I asked Philips in the beggining about the internal pull-ups for the
2138 and the response was as follows:

"
1) pull-up resistors are in the 10s of K - We should have an exact
value after analyzing process data.
2) Port 0 does have pull ups but note that i2c pins do not.
"

regards,
Charles

--- In lpc2000@yahoogroups.com, "Bill Knight" <BillK@t...> wrote:
> Ouch!
> 
> -Bill
> 
> 
> 
> On Wed, 27 Apr 2005 13:34:13 -0000, tah2k wrote:
> 
> I saw the same thing when I was evaluating the 2138. I was told by the 
> Phillips FAE to use external pull-ups when the I/O pin is configured 
> as an output. The internal weak pull-up works fine when the I/O is 
> configured as an input.
> 
> 
> --- In lpc2000@yahoogroups.com, "dimed77" <dimed77@y...> wrote:
> > 
> > Hi,
> > 
> > Does the LPC2138 P0.10 pin have special electrical specs.? When 
> > configured as GPIO, it goes to only 2V when in logic '1' output, no 
> > load. Tried with 2 different chips already.
> > Could someone give me a hint?
> > 
> > Thanks :)
> > 
> > Di





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