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PCD
output_high( )
Syntax:
output_high ( pin )
Parameters: Pin to write to. 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 . The PIN could also be a
variable. The variable 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.
Returns:
Function:
undefined
Sets a given pin to the high state. The method of I/O used is dependent on the last
USE *_IO directive.
Availability: All devices.
Requires:
Examples:
Example
Files:
Also See:
Pin constants are defined in the devices .h file
output_high(PIN_A0);
Int16 i=PIN_A1;
output_low(PIN_A1);
input(), output_low(), output_float(), output_bit(), output_x(), #USE FIXED_IO,
#USE FAST_IO, #USE STANDARD_IO, General Purpose I/O
output_low( )
Syntax:
output_low ( 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 . The PIN could also be a variable. The variable
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.
Returns:
Function:
undefined
Sets a given pin to the ground state. The method of I/O used is dependent on the
last USE *_IO directive.
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