GPIO Input

I am working with 28335 and i can't seem to get the digital inputs to work...Seems so easy right? The Input pins that I am most interested in testing are the ones related to the eQEP inputs. All I am trying to do is varify a good signal before I drag in the QEP block and I can't get any input on GPIO 50,51,53 or 21,22,23. Thanks

I was trying to prove that

I was trying to prove that the Quadrant Encoder Pulses were getting to the 28338 in our inverter when I could not varify that I used on of our Experimenter Kits with a 28335 card in it. The attached diagram i was sending out a square wave and using a wire looking for it on other pins which was fine up to GPIO20 than it stops working the the signal is high and stays high.

Thanks

All of the pins that I am

All of the pins that I am trying to read from are GPIO 12 and up the one thing that I can find that is common between them is that they are all being held high by the internal pull up Resistor. How do I change the GPxPUD register it is protected? Thanks

Hmm. I see what you mean when

Hmm. I see what you mean when in "interactive mode". I will report this to then engineering group. If you compile and run then it works fine. You mentioned that you were having trouble with quadrature encoder response: we did have a bug in a header file for the QEP unit on the F283x that has been fixed in the latest download Do not uninstall!! That will terminate a trial. Just download and run the install again and it will update needed files.

Please attach your diagram so

Please attach your diagram so we may test in our labs.