Microbug / MicroBitDAL_SB2_TEST

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Fork of MicroBitDALImageRewrite by Joe Finney

inc/MicroBitButton.h@1:3e0360107f98, 2015-04-16 (annotated)

Committer:
finneyj
Date:
Thu Apr 16 13:50:24 2015 +0000
Revision:
1:3e0360107f98
Parent:
0:47d8ba08580f 
Updates to include:; ;   - Asynchronous Scrolltext();   - First iteration of MessageBus implementation;   - Hardware configuration for SquareBoard protoype

Who changed what in which revision?

UserRevisionLine numberNew contents of line
finneyj 0:47d8ba08580f 1 /**
finneyj 0:47d8ba08580f 2 * Class definition for MicroBit Button.
finneyj 0:47d8ba08580f 3 *
finneyj 0:47d8ba08580f 4 * Represents a single button on the device.
finneyj 0:47d8ba08580f 5 */
finneyj 0:47d8ba08580f 6
finneyj 0:47d8ba08580f 7 #ifndef MICROBIT_BUTTON_H
finneyj 0:47d8ba08580f 8 #define MICROBIT_BUTTON_H
finneyj 0:47d8ba08580f 9
finneyj 1:3e0360107f98 10 #include "mbed.h"
finneyj 1:3e0360107f98 11
finneyj 1:3e0360107f98 12 #define MICROBIT_PIN_LEFT_BUTTON P0_23
finneyj 1:3e0360107f98 13
finneyj 1:3e0360107f98 14 #define MICROBIT_BUTTON_EVT_DOWN 1
finneyj 1:3e0360107f98 15 #define MICROBIT_BUTTON_EVT_UP 2
finneyj 1:3e0360107f98 16
finneyj 1:3e0360107f98 17
finneyj 1:3e0360107f98 18
finneyj 0:47d8ba08580f 19 class MicroBitButton
finneyj 0:47d8ba08580f 20 {
finneyj 0:47d8ba08580f 21 /**
finneyj 0:47d8ba08580f 22 * Unique, enumerated ID for this component.
finneyj 0:47d8ba08580f 23 * Used to track asynchronous events in the event bus.
finneyj 0:47d8ba08580f 24 */
finneyj 1:3e0360107f98 25
finneyj 1:3e0360107f98 26 int id; // Event Bus ID
finneyj 1:3e0360107f98 27 PinName name; // mBed pin name of this pin.
finneyj 1:3e0360107f98 28 DigitalIn pin; // The mBed object looking after this pin at any point in time (may change!).
finneyj 1:3e0360107f98 29 InterruptIn irq; // Handler to detect change events.
finneyj 1:3e0360107f98 30
finneyj 1:3e0360107f98 31 void rising(); // Interrupt on change handler
finneyj 1:3e0360107f98 32 void falling(); // Interrupt on change handler
finneyj 0:47d8ba08580f 33
finneyj 0:47d8ba08580f 34 public:
finneyj 0:47d8ba08580f 35 /**
finneyj 0:47d8ba08580f 36 * Constructor.
finneyj 0:47d8ba08580f 37 * Create a pin representation with the given ID.
finneyj 0:47d8ba08580f 38 * @param id the ID of the new LED object.
finneyj 1:3e0360107f98 39 * @param name the physical pin on the processor that this butotn is connected to.
finneyj 0:47d8ba08580f 40 */
finneyj 1:3e0360107f98 41 MicroBitButton(int id, PinName name);
finneyj 0:47d8ba08580f 42
finneyj 0:47d8ba08580f 43 /**
finneyj 0:47d8ba08580f 44 * Tests if this Button is currently pressed.
finneyj 0:47d8ba08580f 45 * @return 1 if this button is pressed, 0 otherwise.
finneyj 0:47d8ba08580f 46 */
finneyj 0:47d8ba08580f 47 int isPressed();
finneyj 0:47d8ba08580f 48
finneyj 0:47d8ba08580f 49 };
finneyj 0:47d8ba08580f 50
finneyj 0:47d8ba08580f 51 #endif