Johannes Stratmann
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DigitalInOut Class Reference
A digital input/output, used for setting or reading a bi-directional pin. More...
#include <DigitalInOut.h>
Public Member Functions | |
| DigitalInOut (PinName pin) | |
| Create a DigitalInOut connected to the specified pin. | |
| DigitalInOut (PinName pin, PinDirection direction, PinMode mode, int value) | |
| Create a DigitalInOut connected to the specified pin. | |
| void | write (int value) |
| Set the output, specified as 0 or 1 (int) | |
| int | read () |
| Return the output setting, represented as 0 or 1 (int) | |
| void | output () |
| Set as an output. | |
| void | input () |
| Set as an input. | |
| void | mode (PinMode pull) |
| Set the input pin mode. | |
| int | is_connected () |
| Return the output setting, represented as 0 or 1 (int) | |
| DigitalInOut & | operator= (int value) |
| A shorthand for write() | |
| operator int () | |
| A shorthand for read() | |
Detailed Description
A digital input/output, used for setting or reading a bi-directional pin.
Synchronization level: Interrupt safe
Definition at line 30 of file DigitalInOut.h.
Constructor & Destructor Documentation
| DigitalInOut | ( | PinName | pin ) |
Create a DigitalInOut connected to the specified pin.
- Parameters:
-
pin DigitalInOut pin to connect to
Definition at line 37 of file DigitalInOut.h.
| DigitalInOut | ( | PinName | pin, |
| PinDirection | direction, | ||
| PinMode | mode, | ||
| int | value | ||
| ) |
Create a DigitalInOut connected to the specified pin.
- Parameters:
-
pin DigitalInOut pin to connect to direction the initial direction of the pin mode the initial mode of the pin value the initial value of the pin if is an output
Definition at line 49 of file DigitalInOut.h.
Member Function Documentation
| void input | ( | ) |
Set as an input.
Definition at line 85 of file DigitalInOut.h.
| int is_connected | ( | ) |
Return the output setting, represented as 0 or 1 (int)
- Returns:
- Non zero value if pin is connected to uc GPIO 0 if gpio object was initialized with NC
Definition at line 107 of file DigitalInOut.h.
| void mode | ( | PinMode | pull ) |
Set the input pin mode.
- Parameters:
-
mode PullUp, PullDown, PullNone, OpenDrain
Definition at line 95 of file DigitalInOut.h.
| operator int | ( | ) |
A shorthand for read()
Definition at line 129 of file DigitalInOut.h.
| DigitalInOut& operator= | ( | int | value ) |
A shorthand for write()
Definition at line 114 of file DigitalInOut.h.
| void output | ( | ) |
Set as an output.
Definition at line 77 of file DigitalInOut.h.
| int read | ( | ) |
Return the output setting, represented as 0 or 1 (int)
- Returns:
- an integer representing the output setting of the pin if it is an output, or read the input if set as an input
Definition at line 70 of file DigitalInOut.h.
| void write | ( | int | value ) |
Set the output, specified as 0 or 1 (int)
- Parameters:
-
value An integer specifying the pin output value, 0 for logical 0, 1 (or any other non-zero value) for logical 1
Definition at line 59 of file DigitalInOut.h.
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