ST / Mbed 2 deprecated Tilt_IKS01A2

Example of tilt detection for LSM6DSL in X-NUCLEO-IKS01A2

Dependencies:   X_NUCLEO_IKS01A2 mbed

Fork of Tilt_IKS01A2 by ST Expansion SW Team

Tilt Detection Demo Application based on sensor expansion board X-NUCLEO-IKS01A2

Main function is to show how to detect the tilt 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 tilt the board and then view the notification using an hyper terminal. When the tilt event is detected, the LED is switched on for a while.
- the user button can be used to enable/disable the tilt detection feature.

main.cpp@13:aa7ff438087f, 2017-03-14 (annotated)

Committer:
davide.aliprandi@st.com
Date:
Tue Mar 14 13:43:53 2017 +0100
Revision:
13:aa7ff438087f
Parent:
8:a7c8d10449a3 
Aligning to ARM mbed coding style.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
cparata 0:489965565a0d 1 /**
cparata 0:489965565a0d 2 ******************************************************************************
cparata 0:489965565a0d 3 * @file main.cpp
cparata 8:a7c8d10449a3 4 * @author CLab
cparata 8:a7c8d10449a3 5 * @version V1.0.0
cparata 8:a7c8d10449a3 6 * @date 2-December-2016
cparata 0:489965565a0d 7 * @brief Simple Example application for using the X_NUCLEO_IKS01A2
cparata 0:489965565a0d 8 * MEMS Inertial & Environmental Sensor Nucleo expansion board.
cparata 0:489965565a0d 9 ******************************************************************************
cparata 0:489965565a0d 10 * @attention
cparata 0:489965565a0d 11 *
cparata 0:489965565a0d 12 * <h2><center>&copy; COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
cparata 0:489965565a0d 13 *
cparata 0:489965565a0d 14 * Redistribution and use in source and binary forms, with or without modification,
cparata 0:489965565a0d 15 * are permitted provided that the following conditions are met:
cparata 0:489965565a0d 16 * 1. Redistributions of source code must retain the above copyright notice,
cparata 0:489965565a0d 17 * this list of conditions and the following disclaimer.
cparata 0:489965565a0d 18 * 2. Redistributions in binary form must reproduce the above copyright notice,
cparata 0:489965565a0d 19 * this list of conditions and the following disclaimer in the documentation
cparata 0:489965565a0d 20 * and/or other materials provided with the distribution.
cparata 0:489965565a0d 21 * 3. Neither the name of STMicroelectronics nor the names of its contributors
cparata 0:489965565a0d 22 * may be used to endorse or promote products derived from this software
cparata 0:489965565a0d 23 * without specific prior written permission.
cparata 0:489965565a0d 24 *
cparata 0:489965565a0d 25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
cparata 0:489965565a0d 26 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
cparata 0:489965565a0d 27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
cparata 0:489965565a0d 28 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
cparata 0:489965565a0d 29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
cparata 0:489965565a0d 30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
cparata 0:489965565a0d 31 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
cparata 0:489965565a0d 32 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
cparata 0:489965565a0d 33 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
cparata 0:489965565a0d 34 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
cparata 0:489965565a0d 35 *
cparata 0:489965565a0d 36 ******************************************************************************
cparata 0:489965565a0d 37 */
cparata 0:489965565a0d 38
cparata 0:489965565a0d 39 /* Includes */
cparata 0:489965565a0d 40 #include "mbed.h"
davide.aliprandi@st.com 13:aa7ff438087f 41 #include "XNucleoIKS01A2.h"
cparata 0:489965565a0d 42
cparata 0:489965565a0d 43 /* Instantiate the expansion board */
davide.aliprandi@st.com 13:aa7ff438087f 44 static XNucleoIKS01A2 *mems_expansion_board = XNucleoIKS01A2::instance(D14, D15, D4, D5);
cparata 0:489965565a0d 45
cparata 0:489965565a0d 46 /* Retrieve the composing elements of the expansion board */
cparata 0:489965565a0d 47 static LSM6DSLSensor *acc_gyro = mems_expansion_board->acc_gyro;
cparata 0:489965565a0d 48
cparata 0:489965565a0d 49 InterruptIn mybutton(USER_BUTTON);
cparata 0:489965565a0d 50 DigitalOut myled(LED1);
cparata 0:489965565a0d 51
cparata 7:369954b853d4 52 volatile int mems_event = 0;
cparata 0:489965565a0d 53 volatile int toggle_tilt_enable = 0;
cparata 0:489965565a0d 54 static int tilt_is_enabled = 1;
cparata 0:489965565a0d 55
davide.aliprandi@st.com 13:aa7ff438087f 56 /* User button callback. */
davide.aliprandi@st.com 13:aa7ff438087f 57 void pressed_cb() {
davide.aliprandi@st.com 13:aa7ff438087f 58 toggle_tilt_enable = 1;
davide.aliprandi@st.com 13:aa7ff438087f 59 }
davide.aliprandi@st.com 13:aa7ff438087f 60
davide.aliprandi@st.com 13:aa7ff438087f 61 /* Interrupt 1 callback. */
davide.aliprandi@st.com 13:aa7ff438087f 62 void int1_cb() {
davide.aliprandi@st.com 13:aa7ff438087f 63 mems_event = 1;
davide.aliprandi@st.com 13:aa7ff438087f 64 }
cparata 0:489965565a0d 65
cparata 0:489965565a0d 66 /* Simple main function */
cparata 0:489965565a0d 67 int main() {
cparata 0:489965565a0d 68 /* Attach callback to User button press */
cparata 7:369954b853d4 69 mybutton.fall(&pressed_cb);
cparata 0:489965565a0d 70 /* Attach callback to LSM6DSL INT1 */
davide.aliprandi@st.com 13:aa7ff438087f 71 acc_gyro->attach_int1_irq(&int1_cb);
cparata 0:489965565a0d 72
cparata 0:489965565a0d 73 /* Enable LSM6DSL accelerometer */
davide.aliprandi@st.com 13:aa7ff438087f 74 acc_gyro->enable_x();
cparata 0:489965565a0d 75 /* Enable Tilt Detection. */
davide.aliprandi@st.com 13:aa7ff438087f 76 acc_gyro->enable_tilt_detection();
cparata 0:489965565a0d 77
cparata 0:489965565a0d 78 printf("\r\n--- Starting new run ---\r\n");
cparata 0:489965565a0d 79
cparata 0:489965565a0d 80 while(1) {
cparata 0:489965565a0d 81 if(toggle_tilt_enable) {
cparata 0:489965565a0d 82 toggle_tilt_enable = 0;
cparata 0:489965565a0d 83 if(tilt_is_enabled == 0) {
davide.aliprandi@st.com 13:aa7ff438087f 84 acc_gyro->enable_tilt_detection();
cparata 0:489965565a0d 85 tilt_is_enabled = 1;
cparata 0:489965565a0d 86 } else {
davide.aliprandi@st.com 13:aa7ff438087f 87 acc_gyro->disable_tilt_detection();
cparata 0:489965565a0d 88 tilt_is_enabled = 0;
cparata 0:489965565a0d 89 }
cparata 0:489965565a0d 90 }
cparata 0:489965565a0d 91
cparata 7:369954b853d4 92 if (mems_event) {
cparata 7:369954b853d4 93 mems_event = 0;
cparata 4:49b63c3f26ae 94 LSM6DSL_Event_Status_t status;
davide.aliprandi@st.com 13:aa7ff438087f 95 acc_gyro->get_event_status(&status);
cparata 4:49b63c3f26ae 96 if (status.TiltStatus) {
cparata 0:489965565a0d 97 /* Led blinking. */
cparata 0:489965565a0d 98 myled = 1;
cparata 0:489965565a0d 99 wait(0.2);
cparata 0:489965565a0d 100 myled = 0;
cparata 0:489965565a0d 101
cparata 0:489965565a0d 102 /* Output data. */
cparata 0:489965565a0d 103 printf("Tilt Detected!\r\n");
cparata 0:489965565a0d 104 }
cparata 0:489965565a0d 105 }
cparata 0:489965565a0d 106 }
cparata 0:489965565a0d 107 }