ST / Mbed 2 deprecated WakeUp_IKS01A2

Example of wake up detection for LSM6DSL in X-NUCLEO-IKS01A2

Dependencies:   X_NUCLEO_IKS01A2 mbed

Fork of WakeUp_IKS01A2 by ST Expansion SW Team

Wake up Demo Application based on sensor expansion board X-NUCLEO-IKS01A2

Main function is to show how to detect the wake up event using the sensor expansion board and send a notification using UART to a connected PC or Desktop and display it on terminal applications like TeraTerm.
After connection has been established:
- the user can try to shake the board and then view the notification using an hyper terminal. When the wake up event is detected, the LED is switched on for a while.
- the user button can be used to enable/disable the wake up detection feature.

main.cpp@0:e7e920b85676, 2016-08-12 (annotated)

Committer:
cparata
Date:
Fri Aug 12 13:43:40 2016 +0000
Revision:
0:e7e920b85676
Child:
4:fbffbdc722a5
First release of Wake-Up Detection for LSM6DSL in IKS01A2

Who changed what in which revision?

UserRevisionLine numberNew contents of line
cparata 0:e7e920b85676 1 /**
cparata 0:e7e920b85676 2 ******************************************************************************
cparata 0:e7e920b85676 3 * @file main.cpp
cparata 0:e7e920b85676 4 * @author AST / EST
cparata 0:e7e920b85676 5 * @version V0.0.1
cparata 0:e7e920b85676 6 * @date 9-August-2016
cparata 0:e7e920b85676 7 * @brief Simple Example application for using the X_NUCLEO_IKS01A2
cparata 0:e7e920b85676 8 * MEMS Inertial & Environmental Sensor Nucleo expansion board.
cparata 0:e7e920b85676 9 ******************************************************************************
cparata 0:e7e920b85676 10 * @attention
cparata 0:e7e920b85676 11 *
cparata 0:e7e920b85676 12 * <h2><center>&copy; COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
cparata 0:e7e920b85676 13 *
cparata 0:e7e920b85676 14 * Redistribution and use in source and binary forms, with or without modification,
cparata 0:e7e920b85676 15 * are permitted provided that the following conditions are met:
cparata 0:e7e920b85676 16 * 1. Redistributions of source code must retain the above copyright notice,
cparata 0:e7e920b85676 17 * this list of conditions and the following disclaimer.
cparata 0:e7e920b85676 18 * 2. Redistributions in binary form must reproduce the above copyright notice,
cparata 0:e7e920b85676 19 * this list of conditions and the following disclaimer in the documentation
cparata 0:e7e920b85676 20 * and/or other materials provided with the distribution.
cparata 0:e7e920b85676 21 * 3. Neither the name of STMicroelectronics nor the names of its contributors
cparata 0:e7e920b85676 22 * may be used to endorse or promote products derived from this software
cparata 0:e7e920b85676 23 * without specific prior written permission.
cparata 0:e7e920b85676 24 *
cparata 0:e7e920b85676 25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
cparata 0:e7e920b85676 26 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
cparata 0:e7e920b85676 27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
cparata 0:e7e920b85676 28 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
cparata 0:e7e920b85676 29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
cparata 0:e7e920b85676 30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
cparata 0:e7e920b85676 31 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
cparata 0:e7e920b85676 32 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
cparata 0:e7e920b85676 33 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
cparata 0:e7e920b85676 34 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
cparata 0:e7e920b85676 35 *
cparata 0:e7e920b85676 36 ******************************************************************************
cparata 0:e7e920b85676 37 */
cparata 0:e7e920b85676 38
cparata 0:e7e920b85676 39 /* Includes */
cparata 0:e7e920b85676 40 #include "mbed.h"
cparata 0:e7e920b85676 41 #include "x_nucleo_iks01a2.h"
cparata 0:e7e920b85676 42
cparata 0:e7e920b85676 43 /* Instantiate the expansion board */
cparata 0:e7e920b85676 44 static X_NUCLEO_IKS01A2 *mems_expansion_board = X_NUCLEO_IKS01A2::Instance(D14, D15);
cparata 0:e7e920b85676 45
cparata 0:e7e920b85676 46 /* Retrieve the composing elements of the expansion board */
cparata 0:e7e920b85676 47 static LSM6DSLSensor *acc_gyro = mems_expansion_board->acc_gyro;
cparata 0:e7e920b85676 48
cparata 0:e7e920b85676 49 InterruptIn lsm6dsl_int1(IKS01A2_PIN_LSM6DSL_INT1);
cparata 0:e7e920b85676 50 InterruptIn mybutton(USER_BUTTON);
cparata 0:e7e920b85676 51 DigitalOut myled(LED1);
cparata 0:e7e920b85676 52
cparata 0:e7e920b85676 53 volatile int wake_up = 0;
cparata 0:e7e920b85676 54 volatile int toggle_wake_up_enable = 0;
cparata 0:e7e920b85676 55 static int wake_up_is_enabled = 1;
cparata 0:e7e920b85676 56
cparata 0:e7e920b85676 57 void pressed();
cparata 0:e7e920b85676 58 void wakeup();
cparata 0:e7e920b85676 59
cparata 0:e7e920b85676 60 /* Simple main function */
cparata 0:e7e920b85676 61 int main() {
cparata 0:e7e920b85676 62 /* Attach callback to User button press */
cparata 0:e7e920b85676 63 mybutton.fall(&pressed);
cparata 0:e7e920b85676 64 /* Attach callback to LSM6DSL INT1 */
cparata 0:e7e920b85676 65 lsm6dsl_int1.rise(&wakeup);
cparata 0:e7e920b85676 66
cparata 0:e7e920b85676 67 /* Enable LSM6DSL accelerometer */
cparata 0:e7e920b85676 68 acc_gyro->Enable_X();
cparata 0:e7e920b85676 69 /* Enable Wake-Up Detection. */
cparata 0:e7e920b85676 70 acc_gyro->Enable_Wake_Up_Detection();
cparata 0:e7e920b85676 71
cparata 0:e7e920b85676 72 printf("\r\n--- Starting new run ---\r\n");
cparata 0:e7e920b85676 73
cparata 0:e7e920b85676 74 while(1) {
cparata 0:e7e920b85676 75 if(toggle_wake_up_enable) {
cparata 0:e7e920b85676 76 toggle_wake_up_enable = 0;
cparata 0:e7e920b85676 77 if(wake_up_is_enabled == 0) {
cparata 0:e7e920b85676 78 acc_gyro->Enable_Wake_Up_Detection();
cparata 0:e7e920b85676 79 wake_up_is_enabled = 1;
cparata 0:e7e920b85676 80 } else {
cparata 0:e7e920b85676 81 acc_gyro->Disable_Wake_Up_Detection();
cparata 0:e7e920b85676 82 wake_up_is_enabled = 0;
cparata 0:e7e920b85676 83 }
cparata 0:e7e920b85676 84 }
cparata 0:e7e920b85676 85
cparata 0:e7e920b85676 86 if (wake_up) {
cparata 0:e7e920b85676 87 wake_up = 0;
cparata 0:e7e920b85676 88 uint8_t status = 0;
cparata 0:e7e920b85676 89 acc_gyro->Get_Status_Wake_Up_Detection(&status);
cparata 0:e7e920b85676 90 if (status) {
cparata 0:e7e920b85676 91 /* Led blinking. */
cparata 0:e7e920b85676 92 myled = 1;
cparata 0:e7e920b85676 93 wait(0.2);
cparata 0:e7e920b85676 94 myled = 0;
cparata 0:e7e920b85676 95
cparata 0:e7e920b85676 96 /* Output data. */
cparata 0:e7e920b85676 97 printf("Wake Up Detected!\r\n");
cparata 0:e7e920b85676 98 }
cparata 0:e7e920b85676 99 }
cparata 0:e7e920b85676 100 }
cparata 0:e7e920b85676 101 }
cparata 0:e7e920b85676 102
cparata 0:e7e920b85676 103 void pressed() {
cparata 0:e7e920b85676 104 toggle_wake_up_enable = 1;
cparata 0:e7e920b85676 105 }
cparata 0:e7e920b85676 106
cparata 0:e7e920b85676 107 void wakeup() {
cparata 0:e7e920b85676 108 wake_up = 1;
cparata 0:e7e920b85676 109 }