Matthew Sims / mbed

Lab 1 Program C

Dependents:   Lab1C

Fork of mbed by -deleted-

DigitalOut.h@27:7110ebee3484, 2011-11-29 (annotated)

Committer:
emilmont
Date:
Tue Nov 29 14:59:27 2011 +0000
Revision:
27:7110ebee3484
Parent:
18:b3c9f16cbb96
Child:
43:aff670d0d510
New Libraries 11.11

Who changed what in which revision?

UserRevisionLine numberNew contents of line
simon.ford@mbed.co.uk 0:82220227f4fa 1 /* mbed Microcontroller Library - DigitalOut
emilmont 27:7110ebee3484 2 * Copyright (c) 2006-2011 ARM Limited. All rights reserved.
rolf.meyer@arm.com 11:1c1ebd0324fa 3 */
simon.ford@mbed.co.uk 0:82220227f4fa 4
simon.ford@mbed.co.uk 0:82220227f4fa 5 #ifndef MBED_DIGITALOUT_H
simon.ford@mbed.co.uk 0:82220227f4fa 6 #define MBED_DIGITALOUT_H
simon.ford@mbed.co.uk 0:82220227f4fa 7
rolf.meyer@arm.com 11:1c1ebd0324fa 8 #include "platform.h"
rolf.meyer@arm.com 11:1c1ebd0324fa 9 #include "PinNames.h"
rolf.meyer@arm.com 11:1c1ebd0324fa 10 #include "PeripheralNames.h"
simon.ford@mbed.co.uk 0:82220227f4fa 11 #include "Base.h"
simon.ford@mbed.co.uk 0:82220227f4fa 12
simon.ford@mbed.co.uk 0:82220227f4fa 13 namespace mbed {
simon.ford@mbed.co.uk 0:82220227f4fa 14
simon.ford@mbed.co.uk 0:82220227f4fa 15 /* Class: DigitalOut
simon.ford@mbed.co.uk 0:82220227f4fa 16 * A digital output, used for setting the state of a pin
rolf.meyer@arm.com 11:1c1ebd0324fa 17 *
rolf.meyer@arm.com 11:1c1ebd0324fa 18 * Example:
rolf.meyer@arm.com 11:1c1ebd0324fa 19 * > // Toggle a LED
rolf.meyer@arm.com 11:1c1ebd0324fa 20 * > #include "mbed.h"
rolf.meyer@arm.com 11:1c1ebd0324fa 21 * >
rolf.meyer@arm.com 11:1c1ebd0324fa 22 * > DigitalOut led(LED1);
rolf.meyer@arm.com 11:1c1ebd0324fa 23 * >
rolf.meyer@arm.com 11:1c1ebd0324fa 24 * > int main() {
rolf.meyer@arm.com 11:1c1ebd0324fa 25 * > while(1) {
rolf.meyer@arm.com 11:1c1ebd0324fa 26 * > led = !led;
rolf.meyer@arm.com 11:1c1ebd0324fa 27 * > wait(0.2);
rolf.meyer@arm.com 11:1c1ebd0324fa 28 * > }
rolf.meyer@arm.com 11:1c1ebd0324fa 29 * > }
simon.ford@mbed.co.uk 0:82220227f4fa 30 */
simon.ford@mbed.co.uk 0:82220227f4fa 31 class DigitalOut : public Base {
simon.ford@mbed.co.uk 0:82220227f4fa 32
simon.ford@mbed.co.uk 0:82220227f4fa 33 public:
simon.ford@mbed.co.uk 0:82220227f4fa 34
rolf.meyer@arm.com 11:1c1ebd0324fa 35 /* Constructor: DigitalOut
rolf.meyer@arm.com 11:1c1ebd0324fa 36 * Create a DigitalOut connected to the specified pin
rolf.meyer@arm.com 11:1c1ebd0324fa 37 *
rolf.meyer@arm.com 11:1c1ebd0324fa 38 * Variables:
rolf.meyer@arm.com 11:1c1ebd0324fa 39 * pin - DigitalOut pin to connect to
rolf.meyer@arm.com 11:1c1ebd0324fa 40 */
rolf.meyer@arm.com 11:1c1ebd0324fa 41 DigitalOut(PinName pin, const char* name = NULL);
simon.ford@mbed.co.uk 0:82220227f4fa 42
rolf.meyer@arm.com 11:1c1ebd0324fa 43 /* Function: write
rolf.meyer@arm.com 11:1c1ebd0324fa 44 * Set the output, specified as 0 or 1 (int)
rolf.meyer@arm.com 11:1c1ebd0324fa 45 *
rolf.meyer@arm.com 11:1c1ebd0324fa 46 * Variables:
rolf.meyer@arm.com 11:1c1ebd0324fa 47 * value - An integer specifying the pin output value,
rolf.meyer@arm.com 11:1c1ebd0324fa 48 * 0 for logical 0 and 1 (or any other non-zero value) for logical 1
rolf.meyer@arm.com 11:1c1ebd0324fa 49 */
simon.ford@mbed.co.uk 18:b3c9f16cbb96 50 void write(int value) {
emilmont 27:7110ebee3484 51
emilmont 27:7110ebee3484 52 #if defined(TARGET_LPC1768) || defined(TARGET_LPC2368)
emilmont 27:7110ebee3484 53
simon.ford@mbed.co.uk 18:b3c9f16cbb96 54 if(value) {
simon.ford@mbed.co.uk 18:b3c9f16cbb96 55 _gpio->FIOSET = _mask;
simon.ford@mbed.co.uk 18:b3c9f16cbb96 56 } else {
simon.ford@mbed.co.uk 18:b3c9f16cbb96 57 _gpio->FIOCLR = _mask;
simon.ford@mbed.co.uk 18:b3c9f16cbb96 58 }
emilmont 27:7110ebee3484 59
emilmont 27:7110ebee3484 60 #elif defined(TARGET_LPC11U24)
emilmont 27:7110ebee3484 61
emilmont 27:7110ebee3484 62 if(value) {
emilmont 27:7110ebee3484 63 LPC_GPIO->SET[_index] = _mask;
emilmont 27:7110ebee3484 64 } else {
emilmont 27:7110ebee3484 65 LPC_GPIO->CLR[_index] = _mask;
emilmont 27:7110ebee3484 66 }
emilmont 27:7110ebee3484 67 #endif
emilmont 27:7110ebee3484 68
simon.ford@mbed.co.uk 18:b3c9f16cbb96 69 }
simon.ford@mbed.co.uk 0:82220227f4fa 70
rolf.meyer@arm.com 11:1c1ebd0324fa 71 /* Function: read
rolf.meyer@arm.com 11:1c1ebd0324fa 72 * Return the output setting, represented as 0 or 1 (int)
rolf.meyer@arm.com 11:1c1ebd0324fa 73 *
rolf.meyer@arm.com 11:1c1ebd0324fa 74 * Variables:
rolf.meyer@arm.com 11:1c1ebd0324fa 75 * returns - An integer representing the output setting of the pin,
rolf.meyer@arm.com 11:1c1ebd0324fa 76 * 0 for logical 0 and 1 for logical 1
rolf.meyer@arm.com 11:1c1ebd0324fa 77 */
simon.ford@mbed.co.uk 18:b3c9f16cbb96 78 int read() {
emilmont 27:7110ebee3484 79 #if defined(TARGET_LPC1768) || defined(TARGET_LPC2368)
simon.ford@mbed.co.uk 18:b3c9f16cbb96 80 return ((_gpio->FIOPIN & _mask) ? 1 : 0);
emilmont 27:7110ebee3484 81 #elif defined(TARGET_LPC11U24)
emilmont 27:7110ebee3484 82 return ((LPC_GPIO->PIN[_index] & _mask) ? 1 : 0);
emilmont 27:7110ebee3484 83 #endif
emilmont 27:7110ebee3484 84
simon.ford@mbed.co.uk 18:b3c9f16cbb96 85 }
simon.ford@mbed.co.uk 18:b3c9f16cbb96 86
simon.ford@mbed.co.uk 4:5d1359a283bc 87
rolf.meyer@arm.com 11:1c1ebd0324fa 88 #ifdef MBED_OPERATORS
rolf.meyer@arm.com 11:1c1ebd0324fa 89 /* Function: operator=
rolf.meyer@arm.com 11:1c1ebd0324fa 90 * A shorthand for <write>
rolf.meyer@arm.com 11:1c1ebd0324fa 91 */
simon.ford@mbed.co.uk 18:b3c9f16cbb96 92 DigitalOut& operator= (int value) {
simon.ford@mbed.co.uk 18:b3c9f16cbb96 93 write(value);
simon.ford@mbed.co.uk 18:b3c9f16cbb96 94 return *this;
simon.ford@mbed.co.uk 18:b3c9f16cbb96 95 }
simon.ford@mbed.co.uk 18:b3c9f16cbb96 96
simon.ford@mbed.co.uk 18:b3c9f16cbb96 97 DigitalOut& operator= (DigitalOut& rhs) {
simon.ford@mbed.co.uk 18:b3c9f16cbb96 98 write(rhs.read());
simon.ford@mbed.co.uk 18:b3c9f16cbb96 99 return *this;
simon.ford@mbed.co.uk 18:b3c9f16cbb96 100 }
simon.ford@mbed.co.uk 18:b3c9f16cbb96 101
rolf.meyer@arm.com 11:1c1ebd0324fa 102
simon.ford@mbed.co.uk 0:82220227f4fa 103 /* Function: operator int()
simon.ford@mbed.co.uk 0:82220227f4fa 104 * A shorthand for <read>
simon.ford@mbed.co.uk 0:82220227f4fa 105 */
simon.ford@mbed.co.uk 18:b3c9f16cbb96 106 operator int() {
simon.ford@mbed.co.uk 18:b3c9f16cbb96 107 return read();
simon.ford@mbed.co.uk 18:b3c9f16cbb96 108 }
simon.ford@mbed.co.uk 18:b3c9f16cbb96 109
rolf.meyer@arm.com 11:1c1ebd0324fa 110 #endif
rolf.meyer@arm.com 11:1c1ebd0324fa 111
rolf.meyer@arm.com 11:1c1ebd0324fa 112 #ifdef MBED_RPC
rolf.meyer@arm.com 11:1c1ebd0324fa 113 virtual const struct rpc_method *get_rpc_methods();
rolf.meyer@arm.com 11:1c1ebd0324fa 114 static struct rpc_class *get_rpc_class();
rolf.meyer@arm.com 11:1c1ebd0324fa 115 #endif
simon.ford@mbed.co.uk 0:82220227f4fa 116
simon.ford@mbed.co.uk 0:82220227f4fa 117 protected:
rolf.meyer@arm.com 11:1c1ebd0324fa 118
simon.ford@mbed.co.uk 18:b3c9f16cbb96 119 PinName _pin;
emilmont 27:7110ebee3484 120
emilmont 27:7110ebee3484 121 #if defined(TARGET_LPC1768) || defined(TARGET_LPC2368)
simon.ford@mbed.co.uk 18:b3c9f16cbb96 122 LPC_GPIO_TypeDef *_gpio;
emilmont 27:7110ebee3484 123 #elif defined(TARGET_LPC11U24)
emilmont 27:7110ebee3484 124 int _index;
emilmont 27:7110ebee3484 125 #endif
emilmont 27:7110ebee3484 126
simon.ford@mbed.co.uk 18:b3c9f16cbb96 127 uint32_t _mask;
simon.ford@mbed.co.uk 18:b3c9f16cbb96 128
rolf.meyer@arm.com 11:1c1ebd0324fa 129
simon.ford@mbed.co.uk 0:82220227f4fa 130 };
simon.ford@mbed.co.uk 0:82220227f4fa 131
rolf.meyer@arm.com 11:1c1ebd0324fa 132 } // namespace mbed
simon.ford@mbed.co.uk 0:82220227f4fa 133
rolf.meyer@arm.com 11:1c1ebd0324fa 134 #endif