DSP Book Yeditepe / mbed_f401re

mbed library sources with internal temperature sensor for nucleo f401

api/DigitalInOut.h@0:7e2bd16f80af, 2015-01-17 (annotated)

Committer:
elessair
Date:
Sat Jan 17 18:03:58 2015 +0000
Revision:
0:7e2bd16f80af
nucleo f401re internal temperature added

Who changed what in which revision?

UserRevisionLine numberNew contents of line
elessair 0:7e2bd16f80af 1 /* mbed Microcontroller Library
elessair 0:7e2bd16f80af 2 * Copyright (c) 2006-2013 ARM Limited
elessair 0:7e2bd16f80af 3 *
elessair 0:7e2bd16f80af 4 * Licensed under the Apache License, Version 2.0 (the "License");
elessair 0:7e2bd16f80af 5 * you may not use this file except in compliance with the License.
elessair 0:7e2bd16f80af 6 * You may obtain a copy of the License at
elessair 0:7e2bd16f80af 7 *
elessair 0:7e2bd16f80af 8 * http://www.apache.org/licenses/LICENSE-2.0
elessair 0:7e2bd16f80af 9 *
elessair 0:7e2bd16f80af 10 * Unless required by applicable law or agreed to in writing, software
elessair 0:7e2bd16f80af 11 * distributed under the License is distributed on an "AS IS" BASIS,
elessair 0:7e2bd16f80af 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
elessair 0:7e2bd16f80af 13 * See the License for the specific language governing permissions and
elessair 0:7e2bd16f80af 14 * limitations under the License.
elessair 0:7e2bd16f80af 15 */
elessair 0:7e2bd16f80af 16 #ifndef MBED_DIGITALINOUT_H
elessair 0:7e2bd16f80af 17 #define MBED_DIGITALINOUT_H
elessair 0:7e2bd16f80af 18
elessair 0:7e2bd16f80af 19 #include "platform.h"
elessair 0:7e2bd16f80af 20
elessair 0:7e2bd16f80af 21 #include "gpio_api.h"
elessair 0:7e2bd16f80af 22
elessair 0:7e2bd16f80af 23 namespace mbed {
elessair 0:7e2bd16f80af 24
elessair 0:7e2bd16f80af 25 /** A digital input/output, used for setting or reading a bi-directional pin
elessair 0:7e2bd16f80af 26 */
elessair 0:7e2bd16f80af 27 class DigitalInOut {
elessair 0:7e2bd16f80af 28
elessair 0:7e2bd16f80af 29 public:
elessair 0:7e2bd16f80af 30 /** Create a DigitalInOut connected to the specified pin
elessair 0:7e2bd16f80af 31 *
elessair 0:7e2bd16f80af 32 * @param pin DigitalInOut pin to connect to
elessair 0:7e2bd16f80af 33 */
elessair 0:7e2bd16f80af 34 DigitalInOut(PinName pin) : gpio() {
elessair 0:7e2bd16f80af 35 gpio_init_in(&gpio, pin);
elessair 0:7e2bd16f80af 36 }
elessair 0:7e2bd16f80af 37
elessair 0:7e2bd16f80af 38 /** Create a DigitalInOut connected to the specified pin
elessair 0:7e2bd16f80af 39 *
elessair 0:7e2bd16f80af 40 * @param pin DigitalInOut pin to connect to
elessair 0:7e2bd16f80af 41 * @param direction the initial direction of the pin
elessair 0:7e2bd16f80af 42 * @param mode the initial mode of the pin
elessair 0:7e2bd16f80af 43 * @param value the initial value of the pin if is an output
elessair 0:7e2bd16f80af 44 */
elessair 0:7e2bd16f80af 45 DigitalInOut(PinName pin, PinDirection direction, PinMode mode, int value) : gpio() {
elessair 0:7e2bd16f80af 46 gpio_init_inout(&gpio, pin, direction, mode, value);
elessair 0:7e2bd16f80af 47 }
elessair 0:7e2bd16f80af 48
elessair 0:7e2bd16f80af 49 /** Set the output, specified as 0 or 1 (int)
elessair 0:7e2bd16f80af 50 *
elessair 0:7e2bd16f80af 51 * @param value An integer specifying the pin output value,
elessair 0:7e2bd16f80af 52 * 0 for logical 0, 1 (or any other non-zero value) for logical 1
elessair 0:7e2bd16f80af 53 */
elessair 0:7e2bd16f80af 54 void write(int value) {
elessair 0:7e2bd16f80af 55 gpio_write(&gpio, value);
elessair 0:7e2bd16f80af 56 }
elessair 0:7e2bd16f80af 57
elessair 0:7e2bd16f80af 58 /** Return the output setting, represented as 0 or 1 (int)
elessair 0:7e2bd16f80af 59 *
elessair 0:7e2bd16f80af 60 * @returns
elessair 0:7e2bd16f80af 61 * an integer representing the output setting of the pin if it is an output,
elessair 0:7e2bd16f80af 62 * or read the input if set as an input
elessair 0:7e2bd16f80af 63 */
elessair 0:7e2bd16f80af 64 int read() {
elessair 0:7e2bd16f80af 65 return gpio_read(&gpio);
elessair 0:7e2bd16f80af 66 }
elessair 0:7e2bd16f80af 67
elessair 0:7e2bd16f80af 68 /** Set as an output
elessair 0:7e2bd16f80af 69 */
elessair 0:7e2bd16f80af 70 void output() {
elessair 0:7e2bd16f80af 71 gpio_dir(&gpio, PIN_OUTPUT);
elessair 0:7e2bd16f80af 72 }
elessair 0:7e2bd16f80af 73
elessair 0:7e2bd16f80af 74 /** Set as an input
elessair 0:7e2bd16f80af 75 */
elessair 0:7e2bd16f80af 76 void input() {
elessair 0:7e2bd16f80af 77 gpio_dir(&gpio, PIN_INPUT);
elessair 0:7e2bd16f80af 78 }
elessair 0:7e2bd16f80af 79
elessair 0:7e2bd16f80af 80 /** Set the input pin mode
elessair 0:7e2bd16f80af 81 *
elessair 0:7e2bd16f80af 82 * @param mode PullUp, PullDown, PullNone, OpenDrain
elessair 0:7e2bd16f80af 83 */
elessair 0:7e2bd16f80af 84 void mode(PinMode pull) {
elessair 0:7e2bd16f80af 85 gpio_mode(&gpio, pull);
elessair 0:7e2bd16f80af 86 }
elessair 0:7e2bd16f80af 87
elessair 0:7e2bd16f80af 88 #ifdef MBED_OPERATORS
elessair 0:7e2bd16f80af 89 /** A shorthand for write()
elessair 0:7e2bd16f80af 90 */
elessair 0:7e2bd16f80af 91 DigitalInOut& operator= (int value) {
elessair 0:7e2bd16f80af 92 write(value);
elessair 0:7e2bd16f80af 93 return *this;
elessair 0:7e2bd16f80af 94 }
elessair 0:7e2bd16f80af 95
elessair 0:7e2bd16f80af 96 DigitalInOut& operator= (DigitalInOut& rhs) {
elessair 0:7e2bd16f80af 97 write(rhs.read());
elessair 0:7e2bd16f80af 98 return *this;
elessair 0:7e2bd16f80af 99 }
elessair 0:7e2bd16f80af 100
elessair 0:7e2bd16f80af 101 /** A shorthand for read()
elessair 0:7e2bd16f80af 102 */
elessair 0:7e2bd16f80af 103 operator int() {
elessair 0:7e2bd16f80af 104 return read();
elessair 0:7e2bd16f80af 105 }
elessair 0:7e2bd16f80af 106 #endif
elessair 0:7e2bd16f80af 107
elessair 0:7e2bd16f80af 108 protected:
elessair 0:7e2bd16f80af 109 gpio_t gpio;
elessair 0:7e2bd16f80af 110 };
elessair 0:7e2bd16f80af 111
elessair 0:7e2bd16f80af 112 } // namespace mbed
elessair 0:7e2bd16f80af 113
elessair 0:7e2bd16f80af 114 #endif