Built-in Functions
Availability: All devices.
Requires:
Examples:
Example
Files:
Also See:
Pin constants are defined in the devices.h file.
output_drive(pin_A0); // sets pin_A0 to output its value
output_bit(pin_B0, input(pin_A0)) // makes B0 the same as A0
None
input(), output_low(), output_high(), output_bit(), output_x(), output_float()
.
output_float( )
Syntax:
output_float ( 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 to identify the
pin. The variable must have a value equal to one of the constants (like PIN_A1) to
work properly. Note that doing I/O with a variable instead of a constant will take
much longer time.
Returns:
Function:
undefined
Sets the specified pin to the input mode. This will allow the pin to float high to
represent a high on an open collector type of connection.
Availability: All devices.
Requires:
Examples:
Example
Files:
Also See:
Pin constants are defined in the devices .h file
if( (data & 0x80)==0 )
output_low(pin_A0);
else
output_float(pin_A0);
None
input(), output_low(), output_high(), output_bit(), output_x(), output_drive(), #USE
FIXED_IO, #USE FAST_IO, #USE STANDARD_IO, General Purpose I/O
213
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