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Thread: Rising/Falling Edges
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face BY : Daniel Najemy email (remove spam text)



Easy Question (for you pro's): I want to read a non-interrupt driven
port on a PIC16C74 and detect a rising or falling edge. Any ideas on
the best way to implement this? I'm quite the rookie here -this is
my first design. Reasoning tells me to :

              Read the port
              Store it's value
              Read it again
              Compare the values

If the values are different - i've detected the edge change. Does
this make sense? How could I implement this in C?

Thanks -
<9707080208.AB00038@imggw1.us.dg.com>

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