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pins as a function's parameter

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mutevaggil

Joined: 29 May 2008
Posts: 8

pins as a function's parameter

Posted: Wed Jul 16, 2008 1:21 am

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hi, i want to use a pin as a function parameter. How can i pre-define it in .h file ?

void sample_func (byte) ?

I know i can write the address number of pin, but my parameter is a variable pin. I mean it is code like this:

Code:

void main()
{
x=sample_func(pin_c0);
y= sample_func(pin_c1);
}

As you see, functions are the same, but pins are different. My function:

Code:

sample_function( ?! dumper_pin)
{
if (dumper_pin==pin_c1) ...
if (dumper_pin==pin_c0) ...
}

PCM programmer

Joined: 06 Sep 2003
Posts: 21708

Posted: Wed Jul 16, 2008 10:06 am

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The pin constants are given in the .H file for your PIC. The .H files are
in this directory:

Quote:

c:\Program Files\Picc\Devices

If the PIC is a 16F, the data type for the pin constant will be 'int8'.
If the PIC is 18F, it will be 'int16'.

Also, the C style is to use upper case for constants. Example: PIN_C0

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