Lpc2000

>>I am trying to use P0.3 as a GPIO, but it doesn't seem to be working.

>P0.2 & P0.3 are IIC pins, they need pull-ups.  Do you have pull-ups on
them?

 

Thanks Robert and Karl; I do not have pull-ups.  I finally found the
page in the manual where it states this.  As I have never used I2C, I
did not realize the spec requires the pins to be open drain.

 

Matt



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