Yihui Xiong / Seeed_nRF51822_MPU9250

Use MPU9250 with nRF51822

Dependencies:   eMPL_MPU

Fork of Seeed_Tiny_BLE_Flash by Darren Huang

mbed-src/api/DigitalIn.h@5:9b240c1d5251, 2015-12-10 (annotated)

Committer:
yihui
Date:
Thu Dec 10 08:00:18 2015 +0000
Revision:
5:9b240c1d5251
get 9dof data from mpu9250

Who changed what in which revision?

UserRevisionLine numberNew contents of line
yihui 5:9b240c1d5251 1 /* mbed Microcontroller Library
yihui 5:9b240c1d5251 2 * Copyright (c) 2006-2013 ARM Limited
yihui 5:9b240c1d5251 3 *
yihui 5:9b240c1d5251 4 * Licensed under the Apache License, Version 2.0 (the "License");
yihui 5:9b240c1d5251 5 * you may not use this file except in compliance with the License.
yihui 5:9b240c1d5251 6 * You may obtain a copy of the License at
yihui 5:9b240c1d5251 7 *
yihui 5:9b240c1d5251 8 * http://www.apache.org/licenses/LICENSE-2.0
yihui 5:9b240c1d5251 9 *
yihui 5:9b240c1d5251 10 * Unless required by applicable law or agreed to in writing, software
yihui 5:9b240c1d5251 11 * distributed under the License is distributed on an "AS IS" BASIS,
yihui 5:9b240c1d5251 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
yihui 5:9b240c1d5251 13 * See the License for the specific language governing permissions and
yihui 5:9b240c1d5251 14 * limitations under the License.
yihui 5:9b240c1d5251 15 */
yihui 5:9b240c1d5251 16 #ifndef MBED_DIGITALIN_H
yihui 5:9b240c1d5251 17 #define MBED_DIGITALIN_H
yihui 5:9b240c1d5251 18
yihui 5:9b240c1d5251 19 #include "platform.h"
yihui 5:9b240c1d5251 20
yihui 5:9b240c1d5251 21 #include "gpio_api.h"
yihui 5:9b240c1d5251 22
yihui 5:9b240c1d5251 23 namespace mbed {
yihui 5:9b240c1d5251 24
yihui 5:9b240c1d5251 25 /** A digital input, used for reading the state of a pin
yihui 5:9b240c1d5251 26 *
yihui 5:9b240c1d5251 27 * Example:
yihui 5:9b240c1d5251 28 * @code
yihui 5:9b240c1d5251 29 * // Flash an LED while a DigitalIn is true
yihui 5:9b240c1d5251 30 *
yihui 5:9b240c1d5251 31 * #include "mbed.h"
yihui 5:9b240c1d5251 32 *
yihui 5:9b240c1d5251 33 * DigitalIn enable(p5);
yihui 5:9b240c1d5251 34 * DigitalOut led(LED1);
yihui 5:9b240c1d5251 35 *
yihui 5:9b240c1d5251 36 * int main() {
yihui 5:9b240c1d5251 37 * while(1) {
yihui 5:9b240c1d5251 38 * if(enable) {
yihui 5:9b240c1d5251 39 * led = !led;
yihui 5:9b240c1d5251 40 * }
yihui 5:9b240c1d5251 41 * wait(0.25);
yihui 5:9b240c1d5251 42 * }
yihui 5:9b240c1d5251 43 * }
yihui 5:9b240c1d5251 44 * @endcode
yihui 5:9b240c1d5251 45 */
yihui 5:9b240c1d5251 46 class DigitalIn {
yihui 5:9b240c1d5251 47
yihui 5:9b240c1d5251 48 public:
yihui 5:9b240c1d5251 49 /** Create a DigitalIn connected to the specified pin
yihui 5:9b240c1d5251 50 *
yihui 5:9b240c1d5251 51 * @param pin DigitalIn pin to connect to
yihui 5:9b240c1d5251 52 */
yihui 5:9b240c1d5251 53 DigitalIn(PinName pin) : gpio() {
yihui 5:9b240c1d5251 54 gpio_init_in(&gpio, pin);
yihui 5:9b240c1d5251 55 }
yihui 5:9b240c1d5251 56
yihui 5:9b240c1d5251 57 /** Create a DigitalIn connected to the specified pin
yihui 5:9b240c1d5251 58 *
yihui 5:9b240c1d5251 59 * @param pin DigitalIn pin to connect to
yihui 5:9b240c1d5251 60 * @param mode the initial mode of the pin
yihui 5:9b240c1d5251 61 */
yihui 5:9b240c1d5251 62 DigitalIn(PinName pin, PinMode mode) : gpio() {
yihui 5:9b240c1d5251 63 gpio_init_in_ex(&gpio, pin, mode);
yihui 5:9b240c1d5251 64 }
yihui 5:9b240c1d5251 65 /** Read the input, represented as 0 or 1 (int)
yihui 5:9b240c1d5251 66 *
yihui 5:9b240c1d5251 67 * @returns
yihui 5:9b240c1d5251 68 * An integer representing the state of the input pin,
yihui 5:9b240c1d5251 69 * 0 for logical 0, 1 for logical 1
yihui 5:9b240c1d5251 70 */
yihui 5:9b240c1d5251 71 int read() {
yihui 5:9b240c1d5251 72 return gpio_read(&gpio);
yihui 5:9b240c1d5251 73 }
yihui 5:9b240c1d5251 74
yihui 5:9b240c1d5251 75 /** Set the input pin mode
yihui 5:9b240c1d5251 76 *
yihui 5:9b240c1d5251 77 * @param mode PullUp, PullDown, PullNone, OpenDrain
yihui 5:9b240c1d5251 78 */
yihui 5:9b240c1d5251 79 void mode(PinMode pull) {
yihui 5:9b240c1d5251 80 gpio_mode(&gpio, pull);
yihui 5:9b240c1d5251 81 }
yihui 5:9b240c1d5251 82
yihui 5:9b240c1d5251 83 /** Return the output setting, represented as 0 or 1 (int)
yihui 5:9b240c1d5251 84 *
yihui 5:9b240c1d5251 85 * @returns
yihui 5:9b240c1d5251 86 * Non zero value if pin is connected to uc GPIO
yihui 5:9b240c1d5251 87 * 0 if gpio object was initialized with NC
yihui 5:9b240c1d5251 88 */
yihui 5:9b240c1d5251 89 int is_connected() {
yihui 5:9b240c1d5251 90 return gpio_is_connected(&gpio);
yihui 5:9b240c1d5251 91 }
yihui 5:9b240c1d5251 92
yihui 5:9b240c1d5251 93 #ifdef MBED_OPERATORS
yihui 5:9b240c1d5251 94 /** An operator shorthand for read()
yihui 5:9b240c1d5251 95 */
yihui 5:9b240c1d5251 96 operator int() {
yihui 5:9b240c1d5251 97 return read();
yihui 5:9b240c1d5251 98 }
yihui 5:9b240c1d5251 99 #endif
yihui 5:9b240c1d5251 100
yihui 5:9b240c1d5251 101 protected:
yihui 5:9b240c1d5251 102 gpio_t gpio;
yihui 5:9b240c1d5251 103 };
yihui 5:9b240c1d5251 104
yihui 5:9b240c1d5251 105 } // namespace mbed
yihui 5:9b240c1d5251 106
yihui 5:9b240c1d5251 107 #endif