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mbed library sources

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Superseded

This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.

Development branch of the mbed library sources. This library is kept in synch with the latest changes from the mbed SDK and it is not guaranteed to work.

If you are looking for a stable and tested release, please import one of the official mbed library releases:

Import librarymbed

The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.

Last commit 20 Feb 2019 by mbed official

cpp/DigitalOut.h@0:fd0d7bdfcdc2, 2012-11-20 (annotated)

Committer:
mbed_official
Date:
Tue Nov 20 17:24:08 2012 +0000
Revision:
0:fd0d7bdfcdc2
Child:
2:143cac498751
mbed sources

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 0:fd0d7bdfcdc2 1 /* mbed Microcontroller Library
mbed_official 0:fd0d7bdfcdc2 2 * Copyright (c) 2006-2012 ARM Limited
mbed_official 0:fd0d7bdfcdc2 3 *
mbed_official 0:fd0d7bdfcdc2 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
mbed_official 0:fd0d7bdfcdc2 5 * of this software and associated documentation files (the "Software"), to deal
mbed_official 0:fd0d7bdfcdc2 6 * in the Software without restriction, including without limitation the rights
mbed_official 0:fd0d7bdfcdc2 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
mbed_official 0:fd0d7bdfcdc2 8 * copies of the Software, and to permit persons to whom the Software is
mbed_official 0:fd0d7bdfcdc2 9 * furnished to do so, subject to the following conditions:
mbed_official 0:fd0d7bdfcdc2 10 *
mbed_official 0:fd0d7bdfcdc2 11 * The above copyright notice and this permission notice shall be included in
mbed_official 0:fd0d7bdfcdc2 12 * all copies or substantial portions of the Software.
mbed_official 0:fd0d7bdfcdc2 13 *
mbed_official 0:fd0d7bdfcdc2 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
mbed_official 0:fd0d7bdfcdc2 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
mbed_official 0:fd0d7bdfcdc2 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
mbed_official 0:fd0d7bdfcdc2 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
mbed_official 0:fd0d7bdfcdc2 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
mbed_official 0:fd0d7bdfcdc2 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
mbed_official 0:fd0d7bdfcdc2 20 * SOFTWARE.
mbed_official 0:fd0d7bdfcdc2 21 */
mbed_official 0:fd0d7bdfcdc2 22 #ifndef MBED_DIGITALOUT_H
mbed_official 0:fd0d7bdfcdc2 23 #define MBED_DIGITALOUT_H
mbed_official 0:fd0d7bdfcdc2 24
mbed_official 0:fd0d7bdfcdc2 25 #include "platform.h"
mbed_official 0:fd0d7bdfcdc2 26 #include "gpio_api.h"
mbed_official 0:fd0d7bdfcdc2 27
mbed_official 0:fd0d7bdfcdc2 28 namespace mbed {
mbed_official 0:fd0d7bdfcdc2 29
mbed_official 0:fd0d7bdfcdc2 30 /** A digital output, used for setting the state of a pin
mbed_official 0:fd0d7bdfcdc2 31 *
mbed_official 0:fd0d7bdfcdc2 32 * Example:
mbed_official 0:fd0d7bdfcdc2 33 * @code
mbed_official 0:fd0d7bdfcdc2 34 * // Toggle a LED
mbed_official 0:fd0d7bdfcdc2 35 * #include "mbed.h"
mbed_official 0:fd0d7bdfcdc2 36 *
mbed_official 0:fd0d7bdfcdc2 37 * DigitalOut led(LED1);
mbed_official 0:fd0d7bdfcdc2 38 *
mbed_official 0:fd0d7bdfcdc2 39 * int main() {
mbed_official 0:fd0d7bdfcdc2 40 * while(1) {
mbed_official 0:fd0d7bdfcdc2 41 * led = !led;
mbed_official 0:fd0d7bdfcdc2 42 * wait(0.2);
mbed_official 0:fd0d7bdfcdc2 43 * }
mbed_official 0:fd0d7bdfcdc2 44 * }
mbed_official 0:fd0d7bdfcdc2 45 * @endcode
mbed_official 0:fd0d7bdfcdc2 46 */
mbed_official 0:fd0d7bdfcdc2 47 class DigitalOut {
mbed_official 0:fd0d7bdfcdc2 48
mbed_official 0:fd0d7bdfcdc2 49 public:
mbed_official 0:fd0d7bdfcdc2 50 /** Create a DigitalOut connected to the specified pin
mbed_official 0:fd0d7bdfcdc2 51 *
mbed_official 0:fd0d7bdfcdc2 52 * @param pin DigitalOut pin to connect to
mbed_official 0:fd0d7bdfcdc2 53 */
mbed_official 0:fd0d7bdfcdc2 54 DigitalOut(PinName pin) {
mbed_official 0:fd0d7bdfcdc2 55 gpio_init(&gpio, pin, PIN_OUTPUT);
mbed_official 0:fd0d7bdfcdc2 56 }
mbed_official 0:fd0d7bdfcdc2 57
mbed_official 0:fd0d7bdfcdc2 58 /** Set the output, specified as 0 or 1 (int)
mbed_official 0:fd0d7bdfcdc2 59 *
mbed_official 0:fd0d7bdfcdc2 60 * @param value An integer specifying the pin output value,
mbed_official 0:fd0d7bdfcdc2 61 * 0 for logical 0, 1 (or any other non-zero value) for logical 1
mbed_official 0:fd0d7bdfcdc2 62 */
mbed_official 0:fd0d7bdfcdc2 63 void write(int value) {
mbed_official 0:fd0d7bdfcdc2 64 gpio_write(&gpio, value);
mbed_official 0:fd0d7bdfcdc2 65 }
mbed_official 0:fd0d7bdfcdc2 66
mbed_official 0:fd0d7bdfcdc2 67 /** Return the output setting, represented as 0 or 1 (int)
mbed_official 0:fd0d7bdfcdc2 68 *
mbed_official 0:fd0d7bdfcdc2 69 * @returns
mbed_official 0:fd0d7bdfcdc2 70 * an integer representing the output setting of the pin,
mbed_official 0:fd0d7bdfcdc2 71 * 0 for logical 0, 1 for logical 1
mbed_official 0:fd0d7bdfcdc2 72 */
mbed_official 0:fd0d7bdfcdc2 73 int read() {
mbed_official 0:fd0d7bdfcdc2 74 return gpio_read(&gpio);
mbed_official 0:fd0d7bdfcdc2 75 }
mbed_official 0:fd0d7bdfcdc2 76
mbed_official 0:fd0d7bdfcdc2 77 #ifdef MBED_OPERATORS
mbed_official 0:fd0d7bdfcdc2 78 /** A shorthand for write()
mbed_official 0:fd0d7bdfcdc2 79 */
mbed_official 0:fd0d7bdfcdc2 80 DigitalOut& operator= (int value) {
mbed_official 0:fd0d7bdfcdc2 81 write(value);
mbed_official 0:fd0d7bdfcdc2 82 return *this;
mbed_official 0:fd0d7bdfcdc2 83 }
mbed_official 0:fd0d7bdfcdc2 84
mbed_official 0:fd0d7bdfcdc2 85 DigitalOut& operator= (DigitalOut& rhs) {
mbed_official 0:fd0d7bdfcdc2 86 write(rhs.read());
mbed_official 0:fd0d7bdfcdc2 87 return *this;
mbed_official 0:fd0d7bdfcdc2 88 }
mbed_official 0:fd0d7bdfcdc2 89
mbed_official 0:fd0d7bdfcdc2 90 /** A shorthand for read()
mbed_official 0:fd0d7bdfcdc2 91 */
mbed_official 0:fd0d7bdfcdc2 92 operator int() {
mbed_official 0:fd0d7bdfcdc2 93 return read();
mbed_official 0:fd0d7bdfcdc2 94 }
mbed_official 0:fd0d7bdfcdc2 95 #endif
mbed_official 0:fd0d7bdfcdc2 96
mbed_official 0:fd0d7bdfcdc2 97 protected:
mbed_official 0:fd0d7bdfcdc2 98 gpio_t gpio;
mbed_official 0:fd0d7bdfcdc2 99 };
mbed_official 0:fd0d7bdfcdc2 100
mbed_official 0:fd0d7bdfcdc2 101 } // namespace mbed
mbed_official 0:fd0d7bdfcdc2 102
mbed_official 0:fd0d7bdfcdc2 103 #endif