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/DigitalIn.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_DIGITALIN_H
yihui 9:05f0b5a3a70a 17 #define MBED_DIGITALIN_H
yihui 9:05f0b5a3a70a 18
yihui 9:05f0b5a3a70a 19 #include "platform.h"
yihui 9:05f0b5a3a70a 20
yihui 9:05f0b5a3a70a 21 #include "gpio_api.h"
yihui 9:05f0b5a3a70a 22
yihui 9:05f0b5a3a70a 23 namespace mbed {
yihui 9:05f0b5a3a70a 24
yihui 9:05f0b5a3a70a 25 /** A digital input, used for reading the state of a pin
yihui 9:05f0b5a3a70a 26 *
yihui 9:05f0b5a3a70a 27 * Example:
yihui 9:05f0b5a3a70a 28 * @code
yihui 9:05f0b5a3a70a 29 * // Flash an LED while a DigitalIn is true
yihui 9:05f0b5a3a70a 30 *
yihui 9:05f0b5a3a70a 31 * #include "mbed.h"
yihui 9:05f0b5a3a70a 32 *
yihui 9:05f0b5a3a70a 33 * DigitalIn enable(p5);
yihui 9:05f0b5a3a70a 34 * DigitalOut led(LED1);
yihui 9:05f0b5a3a70a 35 *
yihui 9:05f0b5a3a70a 36 * int main() {
yihui 9:05f0b5a3a70a 37 * while(1) {
yihui 9:05f0b5a3a70a 38 * if(enable) {
yihui 9:05f0b5a3a70a 39 * led = !led;
yihui 9:05f0b5a3a70a 40 * }
yihui 9:05f0b5a3a70a 41 * wait(0.25);
yihui 9:05f0b5a3a70a 42 * }
yihui 9:05f0b5a3a70a 43 * }
yihui 9:05f0b5a3a70a 44 * @endcode
yihui 9:05f0b5a3a70a 45 */
yihui 9:05f0b5a3a70a 46 class DigitalIn {
yihui 9:05f0b5a3a70a 47
yihui 9:05f0b5a3a70a 48 public:
yihui 9:05f0b5a3a70a 49 /** Create a DigitalIn connected to the specified pin
yihui 9:05f0b5a3a70a 50 *
yihui 9:05f0b5a3a70a 51 * @param pin DigitalIn pin to connect to
yihui 9:05f0b5a3a70a 52 */
yihui 9:05f0b5a3a70a 53 DigitalIn(PinName pin) : gpio() {
yihui 9:05f0b5a3a70a 54 gpio_init_in(&gpio, pin);
yihui 9:05f0b5a3a70a 55 }
yihui 9:05f0b5a3a70a 56
yihui 9:05f0b5a3a70a 57 /** Create a DigitalIn connected to the specified pin
yihui 9:05f0b5a3a70a 58 *
yihui 9:05f0b5a3a70a 59 * @param pin DigitalIn pin to connect to
yihui 9:05f0b5a3a70a 60 * @param mode the initial mode of the pin
yihui 9:05f0b5a3a70a 61 */
yihui 9:05f0b5a3a70a 62 DigitalIn(PinName pin, PinMode mode) : gpio() {
yihui 9:05f0b5a3a70a 63 gpio_init_in_ex(&gpio, pin, mode);
yihui 9:05f0b5a3a70a 64 }
yihui 9:05f0b5a3a70a 65 /** Read the input, represented as 0 or 1 (int)
yihui 9:05f0b5a3a70a 66 *
yihui 9:05f0b5a3a70a 67 * @returns
yihui 9:05f0b5a3a70a 68 * An integer representing the state of the input pin,
yihui 9:05f0b5a3a70a 69 * 0 for logical 0, 1 for logical 1
yihui 9:05f0b5a3a70a 70 */
yihui 9:05f0b5a3a70a 71 int read() {
yihui 9:05f0b5a3a70a 72 return gpio_read(&gpio);
yihui 9:05f0b5a3a70a 73 }
yihui 9:05f0b5a3a70a 74
yihui 9:05f0b5a3a70a 75 /** Set the input pin mode
yihui 9:05f0b5a3a70a 76 *
yihui 9:05f0b5a3a70a 77 * @param mode PullUp, PullDown, PullNone, OpenDrain
yihui 9:05f0b5a3a70a 78 */
yihui 9:05f0b5a3a70a 79 void mode(PinMode pull) {
yihui 9:05f0b5a3a70a 80 gpio_mode(&gpio, pull);
yihui 9:05f0b5a3a70a 81 }
yihui 9:05f0b5a3a70a 82
yihui 9:05f0b5a3a70a 83 #ifdef MBED_OPERATORS
yihui 9:05f0b5a3a70a 84 /** An operator shorthand for read()
yihui 9:05f0b5a3a70a 85 */
yihui 9:05f0b5a3a70a 86 operator int() {
yihui 9:05f0b5a3a70a 87 return read();
yihui 9:05f0b5a3a70a 88 }
yihui 9:05f0b5a3a70a 89 #endif
yihui 9:05f0b5a3a70a 90
yihui 9:05f0b5a3a70a 91 protected:
yihui 9:05f0b5a3a70a 92 gpio_t gpio;
yihui 9:05f0b5a3a70a 93 };
yihui 9:05f0b5a3a70a 94
yihui 9:05f0b5a3a70a 95 } // namespace mbed
yihui 9:05f0b5a3a70a 96
yihui 9:05f0b5a3a70a 97 #endif