Watchdog Timer
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BusOut Class Reference
A digital output bus, used for setting the state of a collection of pins. More...
#include <BusOut.h>
Public Member Functions | |
BusOut (PinName p0, PinName p1=NC, PinName p2=NC, PinName p3=NC, PinName p4=NC, PinName p5=NC, PinName p6=NC, PinName p7=NC, PinName p8=NC, PinName p9=NC, PinName p10=NC, PinName p11=NC, PinName p12=NC, PinName p13=NC, PinName p14=NC, PinName p15=NC) | |
Create an BusOut, connected to the specified pins. | |
void | write (int value) |
Write the value to the output bus. | |
int | read () |
Read the value currently output on the bus. | |
int | mask () |
Binary mask of bus pins connected to actual pins (not NC pins) If bus pin is in NC state make corresponding bit will be cleared (set to 0), else bit will be set to 1. | |
BusOut & | operator= (int v) |
A shorthand for write() | |
DigitalOut & | operator[] (int index) |
Access to particular bit in random-iterator fashion. | |
operator int () | |
A shorthand for read() | |
Protected Attributes | |
int | _nc_mask |
Mask of bus's NC pins If bit[n] is set to 1 - pin is connected if bit[n] is cleared - pin is not connected (NC) |
Detailed Description
A digital output bus, used for setting the state of a collection of pins.
Definition at line 25 of file BusOut.h.
Constructor & Destructor Documentation
BusOut | ( | PinName | p0, |
PinName | p1 = NC , |
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PinName | p2 = NC , |
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PinName | p3 = NC , |
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PinName | p4 = NC , |
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PinName | p5 = NC , |
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PinName | p6 = NC , |
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PinName | p7 = NC , |
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PinName | p8 = NC , |
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PinName | p9 = NC , |
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PinName | p10 = NC , |
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PinName | p11 = NC , |
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PinName | p12 = NC , |
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PinName | p13 = NC , |
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PinName | p14 = NC , |
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PinName | p15 = NC |
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) |
Create an BusOut, connected to the specified pins.
- Parameters:
-
p<n> DigitalOut pin to connect to bus bit <n> (p5-p30, NC)
- Note:
- It is only required to specify as many pin variables as is required for the bus; the rest will default to NC (not connected)
Definition at line 21 of file BusOut.cpp.
Member Function Documentation
int mask | ( | ) |
operator int | ( | ) |
A shorthand for read()
Definition at line 86 of file BusOut.cpp.
BusOut & operator= | ( | int | v ) |
A shorthand for write()
Definition at line 70 of file BusOut.cpp.
DigitalOut & operator[] | ( | int | index ) |
Access to particular bit in random-iterator fashion.
Definition at line 80 of file BusOut.cpp.
int read | ( | ) |
Read the value currently output on the bus.
- Returns:
- An integer with each bit corresponding to associated DigitalOut pin setting
Definition at line 59 of file BusOut.cpp.
void write | ( | int | value ) |
Write the value to the output bus.
- Parameters:
-
value An integer specifying a bit to write for every corresponding DigitalOut pin
Definition at line 51 of file BusOut.cpp.
Field Documentation
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