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PCD
must have a value equal to one of the constants (like PIN_A1) to work properly.
The tristate register is updated unless the FAST_IO mode is set on port A. Note
that doing I/O with a variable instead of a constant will take much longer time.
Value is a 1 or a 0.
Returns:
Function:
undefined
Outputs the specified value (0 or 1) to the specified I/O pin. The
method of setting the direction register is determined by the last
#USE *_IO directive.
Availability: All devices.
Requires:
Examples:
Example
Files:
Also See:
Pin constants are defined in the devices .h file
output_bit( PIN_B0, 0);
// Same as output_low(pin_B0);
output_bit( PIN_B0,input( PIN_B1 ) );
// Make pin B0 the same as B1
output_bit( PIN_B0,shift_left(&data,1,input(PIN_B1)));
// Output the MSB of data to
// B0 and at the same time
// shift B1 into the LSB of data
int16 i=PIN_B0;
ouput_bit(i,shift_left(&data,1,input(PIN_B1)));
//same as above example, but
//uses a variable instead of a constant
ex_extee.c with 9356.c
input(), output_low(), output_high(), output_float(), output_x(), #USE FIXED_IO,
#USE FAST_IO, #USE STANDARD_IO, General Purpose I/O
output_drive( )
Syntax:
output_drive(pin)
Parameters: Pins are defined in the devices .h file. The actual value is a bit address. For
example, port a (byte 5 ) bit 3 would have a value of 5*8+3 or 43 . This is defined
as follows: #DEFINE PIN_A3 43 .
Returns:
Function:
212
undefined
Sets the specified pin to the output mode.
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