Yihui Xiong / BLE_NODE_TEST

Test code for Grove Node BLE

Dependencies:   BLE_API nRF51822

Fork of BLE_LoopbackUART by Bluetooth Low Energy

mbed-src/api/DigitalOut.h@10:22480ac31879, 2014-11-27 (annotated)

Committer:
yihui
Date:
Thu Nov 27 09:30:36 2014 +0000
Revision:
10:22480ac31879
Parent:
9:05f0b5a3a70a 
change to new revision hardware

Who changed what in which revision?

UserRevisionLine numberNew contents of line
yihui 9:05f0b5a3a70a 1 /* mbed Microcontroller Library
yihui 9:05f0b5a3a70a 2 * Copyright (c) 2006-2013 ARM Limited
yihui 9:05f0b5a3a70a 3 *
yihui 9:05f0b5a3a70a 4 * Licensed under the Apache License, Version 2.0 (the "License");
yihui 9:05f0b5a3a70a 5 * you may not use this file except in compliance with the License.
yihui 9:05f0b5a3a70a 6 * You may obtain a copy of the License at
yihui 9:05f0b5a3a70a 7 *
yihui 9:05f0b5a3a70a 8 * http://www.apache.org/licenses/LICENSE-2.0
yihui 9:05f0b5a3a70a 9 *
yihui 9:05f0b5a3a70a 10 * Unless required by applicable law or agreed to in writing, software
yihui 9:05f0b5a3a70a 11 * distributed under the License is distributed on an "AS IS" BASIS,
yihui 9:05f0b5a3a70a 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
yihui 9:05f0b5a3a70a 13 * See the License for the specific language governing permissions and
yihui 9:05f0b5a3a70a 14 * limitations under the License.
yihui 9:05f0b5a3a70a 15 */
yihui 9:05f0b5a3a70a 16 #ifndef MBED_DIGITALOUT_H
yihui 9:05f0b5a3a70a 17 #define MBED_DIGITALOUT_H
yihui 9:05f0b5a3a70a 18
yihui 9:05f0b5a3a70a 19 #include "platform.h"
yihui 9:05f0b5a3a70a 20 #include "gpio_api.h"
yihui 9:05f0b5a3a70a 21
yihui 9:05f0b5a3a70a 22 namespace mbed {
yihui 9:05f0b5a3a70a 23
yihui 9:05f0b5a3a70a 24 /** A digital output, used for setting the state of a pin
yihui 9:05f0b5a3a70a 25 *
yihui 9:05f0b5a3a70a 26 * Example:
yihui 9:05f0b5a3a70a 27 * @code
yihui 9:05f0b5a3a70a 28 * // Toggle a LED
yihui 9:05f0b5a3a70a 29 * #include "mbed.h"
yihui 9:05f0b5a3a70a 30 *
yihui 9:05f0b5a3a70a 31 * DigitalOut led(LED1);
yihui 9:05f0b5a3a70a 32 *
yihui 9:05f0b5a3a70a 33 * int main() {
yihui 9:05f0b5a3a70a 34 * while(1) {
yihui 9:05f0b5a3a70a 35 * led = !led;
yihui 9:05f0b5a3a70a 36 * wait(0.2);
yihui 9:05f0b5a3a70a 37 * }
yihui 9:05f0b5a3a70a 38 * }
yihui 9:05f0b5a3a70a 39 * @endcode
yihui 9:05f0b5a3a70a 40 */
yihui 9:05f0b5a3a70a 41 class DigitalOut {
yihui 9:05f0b5a3a70a 42
yihui 9:05f0b5a3a70a 43 public:
yihui 9:05f0b5a3a70a 44 /** Create a DigitalOut connected to the specified pin
yihui 9:05f0b5a3a70a 45 *
yihui 9:05f0b5a3a70a 46 * @param pin DigitalOut pin to connect to
yihui 9:05f0b5a3a70a 47 */
yihui 9:05f0b5a3a70a 48 DigitalOut(PinName pin) : gpio() {
yihui 9:05f0b5a3a70a 49 gpio_init_out(&gpio, pin);
yihui 9:05f0b5a3a70a 50 }
yihui 9:05f0b5a3a70a 51
yihui 9:05f0b5a3a70a 52 /** Create a DigitalOut connected to the specified pin
yihui 9:05f0b5a3a70a 53 *
yihui 9:05f0b5a3a70a 54 * @param pin DigitalOut pin to connect to
yihui 9:05f0b5a3a70a 55 * @param value the initial pin value
yihui 9:05f0b5a3a70a 56 */
yihui 9:05f0b5a3a70a 57 DigitalOut(PinName pin, int value) : gpio() {
yihui 9:05f0b5a3a70a 58 gpio_init_out_ex(&gpio, pin, value);
yihui 9:05f0b5a3a70a 59 }
yihui 9:05f0b5a3a70a 60
yihui 9:05f0b5a3a70a 61 /** Set the output, specified as 0 or 1 (int)
yihui 9:05f0b5a3a70a 62 *
yihui 9:05f0b5a3a70a 63 * @param value An integer specifying the pin output value,
yihui 9:05f0b5a3a70a 64 * 0 for logical 0, 1 (or any other non-zero value) for logical 1
yihui 9:05f0b5a3a70a 65 */
yihui 9:05f0b5a3a70a 66 void write(int value) {
yihui 9:05f0b5a3a70a 67 gpio_write(&gpio, value);
yihui 9:05f0b5a3a70a 68 }
yihui 9:05f0b5a3a70a 69
yihui 9:05f0b5a3a70a 70 /** Return the output setting, represented as 0 or 1 (int)
yihui 9:05f0b5a3a70a 71 *
yihui 9:05f0b5a3a70a 72 * @returns
yihui 9:05f0b5a3a70a 73 * an integer representing the output setting of the pin,
yihui 9:05f0b5a3a70a 74 * 0 for logical 0, 1 for logical 1
yihui 9:05f0b5a3a70a 75 */
yihui 9:05f0b5a3a70a 76 int read() {
yihui 9:05f0b5a3a70a 77 return gpio_read(&gpio);
yihui 9:05f0b5a3a70a 78 }
yihui 9:05f0b5a3a70a 79
yihui 9:05f0b5a3a70a 80 #ifdef MBED_OPERATORS
yihui 9:05f0b5a3a70a 81 /** A shorthand for write()
yihui 9:05f0b5a3a70a 82 */
yihui 9:05f0b5a3a70a 83 DigitalOut& operator= (int value) {
yihui 9:05f0b5a3a70a 84 write(value);
yihui 9:05f0b5a3a70a 85 return *this;
yihui 9:05f0b5a3a70a 86 }
yihui 9:05f0b5a3a70a 87
yihui 9:05f0b5a3a70a 88 DigitalOut& operator= (DigitalOut& rhs) {
yihui 9:05f0b5a3a70a 89 write(rhs.read());
yihui 9:05f0b5a3a70a 90 return *this;
yihui 9:05f0b5a3a70a 91 }
yihui 9:05f0b5a3a70a 92
yihui 9:05f0b5a3a70a 93 /** A shorthand for read()
yihui 9:05f0b5a3a70a 94 */
yihui 9:05f0b5a3a70a 95 operator int() {
yihui 9:05f0b5a3a70a 96 return read();
yihui 9:05f0b5a3a70a 97 }
yihui 9:05f0b5a3a70a 98 #endif
yihui 9:05f0b5a3a70a 99
yihui 9:05f0b5a3a70a 100 protected:
yihui 9:05f0b5a3a70a 101 gpio_t gpio;
yihui 9:05f0b5a3a70a 102 };
yihui 9:05f0b5a3a70a 103
yihui 9:05f0b5a3a70a 104 } // namespace mbed
yihui 9:05f0b5a3a70a 105
yihui 9:05f0b5a3a70a 106 #endif