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Sci.Electronics.Basics -> Pic Question - digital output on
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Author: DaveDate: 11:30 16-01-07
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For the first time I am working on a USB project using a PIC18F4550
chip. I have written firmware for the chip that was tested and works
on a development board... now I put together a circuit of my own and
burned by firmware onto my own chip, and the whole thing enumerates
when plugged into the PC with my own VID and PID, so I assumed the rest
of my firmware would work too....
However my voltmeter is telling me that pin RC0 is always on, when
connecting it between bin RC0 and ground, even though my firmware
program has not turned the pin on as far as I know.
There is alot of diagnostics I can do from here (like comparing this to
the development board), but I am wondering if this is normal behavior
-- that as soon as the device enumerates the digital output pin is on?
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