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Help! Trying to set up if statement for inut pin

Andrew Young

I have been trying to use this command but only being a novice I am lost. I get error 67 - undefined error. can anyone tell me how to define input pin? thanks

Parents
  • 0 in reply to Andrew Young

    Well, I'm not sure which pin you're after, but if you wanted to check the status of, say, pin 5 of port 3, the you'd write something like this:

    if ( ( P3 & (1 << 5) ) == 1 )
    /* do something here */;
    or
    /* declare special bit */
sbit my_pin = P3 ^ 5;
...
if ( py_pin == 1 )
    /* do something here */;
    And judging by the piece of code you presented it looks like you'll have to read up on both the C programming language and the C166 microcontroller family.

    - mike

Reply
  • 0 in reply to Andrew Young

    Well, I'm not sure which pin you're after, but if you wanted to check the status of, say, pin 5 of port 3, the you'd write something like this:

    if ( ( P3 & (1 << 5) ) == 1 )
    /* do something here */;
    or
    /* declare special bit */
sbit my_pin = P3 ^ 5;
...
if ( py_pin == 1 )
    /* do something here */;
    And judging by the piece of code you presented it looks like you'll have to read up on both the C programming language and the C166 microcontroller family.

    - mike

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