Erik van de Coevering / quadV3

This is my quadcopter prototype software, still in development!

quadv3/mbed/DigitalOut.h@0:978110f7f027, 2013-01-30 (annotated)

Committer:
Anaesthetix
Date:
Wed Jan 30 13:14:44 2013 +0000
Revision:
0:978110f7f027
My quadcopter prototype software, still in development.

Who changed what in which revision?

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Anaesthetix 0:978110f7f027 1 /* mbed Microcontroller Library - DigitalOut
Anaesthetix 0:978110f7f027 2 * Copyright (c) 2006-2011 ARM Limited. All rights reserved.
Anaesthetix 0:978110f7f027 3 */
Anaesthetix 0:978110f7f027 4
Anaesthetix 0:978110f7f027 5 #ifndef MBED_DIGITALOUT_H
Anaesthetix 0:978110f7f027 6 #define MBED_DIGITALOUT_H
Anaesthetix 0:978110f7f027 7
Anaesthetix 0:978110f7f027 8 #include "platform.h"
Anaesthetix 0:978110f7f027 9 #include "PinNames.h"
Anaesthetix 0:978110f7f027 10 #include "PeripheralNames.h"
Anaesthetix 0:978110f7f027 11 #include "Base.h"
Anaesthetix 0:978110f7f027 12
Anaesthetix 0:978110f7f027 13 namespace mbed {
Anaesthetix 0:978110f7f027 14
Anaesthetix 0:978110f7f027 15 /* Class: DigitalOut
Anaesthetix 0:978110f7f027 16 * A digital output, used for setting the state of a pin
Anaesthetix 0:978110f7f027 17 *
Anaesthetix 0:978110f7f027 18 * Example:
Anaesthetix 0:978110f7f027 19 * > // Toggle a LED
Anaesthetix 0:978110f7f027 20 * > #include "mbed.h"
Anaesthetix 0:978110f7f027 21 * >
Anaesthetix 0:978110f7f027 22 * > DigitalOut led(LED1);
Anaesthetix 0:978110f7f027 23 * >
Anaesthetix 0:978110f7f027 24 * > int main() {
Anaesthetix 0:978110f7f027 25 * > while(1) {
Anaesthetix 0:978110f7f027 26 * > led = !led;
Anaesthetix 0:978110f7f027 27 * > wait(0.2);
Anaesthetix 0:978110f7f027 28 * > }
Anaesthetix 0:978110f7f027 29 * > }
Anaesthetix 0:978110f7f027 30 */
Anaesthetix 0:978110f7f027 31 class DigitalOut : public Base {
Anaesthetix 0:978110f7f027 32
Anaesthetix 0:978110f7f027 33 public:
Anaesthetix 0:978110f7f027 34
Anaesthetix 0:978110f7f027 35 /* Constructor: DigitalOut
Anaesthetix 0:978110f7f027 36 * Create a DigitalOut connected to the specified pin
Anaesthetix 0:978110f7f027 37 *
Anaesthetix 0:978110f7f027 38 * Variables:
Anaesthetix 0:978110f7f027 39 * pin - DigitalOut pin to connect to
Anaesthetix 0:978110f7f027 40 */
Anaesthetix 0:978110f7f027 41 DigitalOut(PinName pin, const char* name = NULL);
Anaesthetix 0:978110f7f027 42
Anaesthetix 0:978110f7f027 43 /* Function: write
Anaesthetix 0:978110f7f027 44 * Set the output, specified as 0 or 1 (int)
Anaesthetix 0:978110f7f027 45 *
Anaesthetix 0:978110f7f027 46 * Variables:
Anaesthetix 0:978110f7f027 47 * value - An integer specifying the pin output value,
Anaesthetix 0:978110f7f027 48 * 0 for logical 0 and 1 (or any other non-zero value) for logical 1
Anaesthetix 0:978110f7f027 49 */
Anaesthetix 0:978110f7f027 50 void write(int value) {
Anaesthetix 0:978110f7f027 51
Anaesthetix 0:978110f7f027 52 #if defined(TARGET_LPC1768) || defined(TARGET_LPC2368)
Anaesthetix 0:978110f7f027 53
Anaesthetix 0:978110f7f027 54 if(value) {
Anaesthetix 0:978110f7f027 55 _gpio->FIOSET = _mask;
Anaesthetix 0:978110f7f027 56 } else {
Anaesthetix 0:978110f7f027 57 _gpio->FIOCLR = _mask;
Anaesthetix 0:978110f7f027 58 }
Anaesthetix 0:978110f7f027 59
Anaesthetix 0:978110f7f027 60 #elif defined(TARGET_LPC11U24)
Anaesthetix 0:978110f7f027 61
Anaesthetix 0:978110f7f027 62 if(value) {
Anaesthetix 0:978110f7f027 63 LPC_GPIO->SET[_index] = _mask;
Anaesthetix 0:978110f7f027 64 } else {
Anaesthetix 0:978110f7f027 65 LPC_GPIO->CLR[_index] = _mask;
Anaesthetix 0:978110f7f027 66 }
Anaesthetix 0:978110f7f027 67 #endif
Anaesthetix 0:978110f7f027 68
Anaesthetix 0:978110f7f027 69 }
Anaesthetix 0:978110f7f027 70
Anaesthetix 0:978110f7f027 71 /* Function: read
Anaesthetix 0:978110f7f027 72 * Return the output setting, represented as 0 or 1 (int)
Anaesthetix 0:978110f7f027 73 *
Anaesthetix 0:978110f7f027 74 * Variables:
Anaesthetix 0:978110f7f027 75 * returns - An integer representing the output setting of the pin,
Anaesthetix 0:978110f7f027 76 * 0 for logical 0 and 1 for logical 1
Anaesthetix 0:978110f7f027 77 */
Anaesthetix 0:978110f7f027 78 int read() {
Anaesthetix 0:978110f7f027 79 #if defined(TARGET_LPC1768) || defined(TARGET_LPC2368)
Anaesthetix 0:978110f7f027 80 return ((_gpio->FIOPIN & _mask) ? 1 : 0);
Anaesthetix 0:978110f7f027 81 #elif defined(TARGET_LPC11U24)
Anaesthetix 0:978110f7f027 82 return ((LPC_GPIO->PIN[_index] & _mask) ? 1 : 0);
Anaesthetix 0:978110f7f027 83 #endif
Anaesthetix 0:978110f7f027 84
Anaesthetix 0:978110f7f027 85 }
Anaesthetix 0:978110f7f027 86
Anaesthetix 0:978110f7f027 87
Anaesthetix 0:978110f7f027 88 #ifdef MBED_OPERATORS
Anaesthetix 0:978110f7f027 89 /* Function: operator=
Anaesthetix 0:978110f7f027 90 * A shorthand for <write>
Anaesthetix 0:978110f7f027 91 */
Anaesthetix 0:978110f7f027 92 DigitalOut& operator= (int value) {
Anaesthetix 0:978110f7f027 93 write(value);
Anaesthetix 0:978110f7f027 94 return *this;
Anaesthetix 0:978110f7f027 95 }
Anaesthetix 0:978110f7f027 96
Anaesthetix 0:978110f7f027 97 DigitalOut& operator= (DigitalOut& rhs) {
Anaesthetix 0:978110f7f027 98 write(rhs.read());
Anaesthetix 0:978110f7f027 99 return *this;
Anaesthetix 0:978110f7f027 100 }
Anaesthetix 0:978110f7f027 101
Anaesthetix 0:978110f7f027 102
Anaesthetix 0:978110f7f027 103 /* Function: operator int()
Anaesthetix 0:978110f7f027 104 * A shorthand for <read>
Anaesthetix 0:978110f7f027 105 */
Anaesthetix 0:978110f7f027 106 operator int() {
Anaesthetix 0:978110f7f027 107 return read();
Anaesthetix 0:978110f7f027 108 }
Anaesthetix 0:978110f7f027 109
Anaesthetix 0:978110f7f027 110 #endif
Anaesthetix 0:978110f7f027 111
Anaesthetix 0:978110f7f027 112 #ifdef MBED_RPC
Anaesthetix 0:978110f7f027 113 virtual const struct rpc_method *get_rpc_methods();
Anaesthetix 0:978110f7f027 114 static struct rpc_class *get_rpc_class();
Anaesthetix 0:978110f7f027 115 #endif
Anaesthetix 0:978110f7f027 116
Anaesthetix 0:978110f7f027 117 protected:
Anaesthetix 0:978110f7f027 118
Anaesthetix 0:978110f7f027 119 PinName _pin;
Anaesthetix 0:978110f7f027 120
Anaesthetix 0:978110f7f027 121 #if defined(TARGET_LPC1768) || defined(TARGET_LPC2368)
Anaesthetix 0:978110f7f027 122 LPC_GPIO_TypeDef *_gpio;
Anaesthetix 0:978110f7f027 123 #elif defined(TARGET_LPC11U24)
Anaesthetix 0:978110f7f027 124 int _index;
Anaesthetix 0:978110f7f027 125 #endif
Anaesthetix 0:978110f7f027 126
Anaesthetix 0:978110f7f027 127 uint32_t _mask;
Anaesthetix 0:978110f7f027 128
Anaesthetix 0:978110f7f027 129
Anaesthetix 0:978110f7f027 130 };
Anaesthetix 0:978110f7f027 131
Anaesthetix 0:978110f7f027 132 } // namespace mbed
Anaesthetix 0:978110f7f027 133
Anaesthetix 0:978110f7f027 134 #endif