ST
Example of free fall detection for LSM6DSL in X-NUCLEO-IKS01A2
Dependencies: X_NUCLEO_IKS01A2 mbed
Fork of
FreeFall_IKS01A2
by 
ST Expansion SW Team
Free Fall Detection Demo Application based on sensor expansion board X-NUCLEO-IKS01A2
Main function is to show how to detect the free fall 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 leave falling the board and then view the notification using an hyper terminal. When the free fall is detected, the LED is switched on for a while.
- the user button can be used to enable/disable the free fall detection feature.
Diff: main.cpp
- Revision:
- 13:ce029339972d
- Parent:
- 8:b460ca90deb9
--- a/main.cpp Fri Dec 16 10:01:57 2016 +0000
+++ b/main.cpp Tue Mar 14 13:43:01 2017 +0100
@@ -38,10 +38,10 @@
/* Includes */
#include "mbed.h"
-#include "x_nucleo_iks01a2.h"
+#include "XNucleoIKS01A2.h"
/* Instantiate the expansion board */
-static X_NUCLEO_IKS01A2 *mems_expansion_board = X_NUCLEO_IKS01A2::Instance(D14, D15, D4, D5);
+static XNucleoIKS01A2 *mems_expansion_board = XNucleoIKS01A2::instance(D14, D15, D4, D5);
/* Retrieve the composing elements of the expansion board */
static LSM6DSLSensor *acc_gyro = mems_expansion_board->acc_gyro;
@@ -53,20 +53,27 @@
volatile int toggle_free_fall_enable = 0;
static int free_fall_is_enabled = 1;
-void pressed_cb();
-void INT1_cb();
+/* User button callback. */
+void pressed_cb() {
+ toggle_free_fall_enable = 1;
+}
+
+/* Interrupt 1 callback. */
+void int1_cb() {
+ mems_event = 1;
+}
/* Simple main function */
int main() {
/* Attach callback to User button press */
mybutton.fall(&pressed_cb);
/* Attach callback to LSM6DSL INT1 */
- acc_gyro->AttachINT1IRQ(&INT1_cb);
+ acc_gyro->attach_int1_irq(&int1_cb);
/* Enable LSM6DSL accelerometer */
- acc_gyro->Enable_X();
+ acc_gyro->enable_x();
/* Enable Free Fall Detection. */
- acc_gyro->Enable_Free_Fall_Detection();
+ acc_gyro->enable_free_fall_detection();
printf("\r\n--- Starting new run ---\r\n");
@@ -74,10 +81,10 @@
if(toggle_free_fall_enable) {
toggle_free_fall_enable = 0;
if(free_fall_is_enabled == 0) {
- acc_gyro->Enable_Free_Fall_Detection();
+ acc_gyro->enable_free_fall_detection();
free_fall_is_enabled = 1;
} else {
- acc_gyro->Disable_Free_Fall_Detection();
+ acc_gyro->disable_free_fall_detection();
free_fall_is_enabled = 0;
}
}
@@ -85,7 +92,7 @@
if (mems_event) {
mems_event = 0;
LSM6DSL_Event_Status_t status;
- acc_gyro->Get_Event_Status(&status);
+ acc_gyro->get_event_status(&status);
if (status.FreeFallStatus) {
/* Led blinking. */
myled = 1;
@@ -98,11 +105,3 @@
}
}
}
-
-void pressed_cb() {
- toggle_free_fall_enable = 1;
-}
-
-void INT1_cb() {
- mems_event = 1;
-}