I have just tested the P0.10 on my system and it is 3.3V!! I am using LPC2138 Did they fix the P0.10 issue on new chips? Thanks, Gus --- In lpc2000@yahoogroups.com, Diana Medeiros <dimed77@y...> wrote: > 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@s...> 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 > > > > > > --------------------------------- > Yahoo! Groups Links > > To visit your group on the web, go to: > http://groups.yahoo.com/group/lpc2000/ > > To unsubscribe from this group, send an email to: > lpc2000-unsubscribe@yahoogroups.com > > Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. > > > __________________________________________________ > Do You Yahoo!? > Tired of spam? Yahoo! Mail has the best spam protection around > http://mail.yahoo.com > > [Non-text portions of this message have been removed]
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Re: LPC2138 GPIO
2005-05-02 by Gus
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