Test application performs a range measurement in interrupt mode on the center embedded sensor.

Dependencies:   X_NUCLEO_53L0A1 mbed

Files at this revision

API Documentation at this revision

Comitter:
JerrySzczurak
Date:
Wed Jun 14 14:21:24 2017 +0000
Commit message:
Test application performs a range measurement in interrupt mode; on the center embedded sensor.

Changed in this revision

X_NUCLEO_53L0A1.lib Show annotated file Show diff for this revision Revisions of this file
main.cpp Show annotated file Show diff for this revision Revisions of this file
mbed.bld Show annotated file Show diff for this revision Revisions of this file
diff -r 000000000000 -r 218f6c31fda4 X_NUCLEO_53L0A1.lib
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/X_NUCLEO_53L0A1.lib	Wed Jun 14 14:21:24 2017 +0000
@@ -0,0 +1,1 @@
+https://developer.mbed.org/users/JerrySzczurak/code/X_NUCLEO_53L0A1/#820afb1af4ef
diff -r 000000000000 -r 218f6c31fda4 main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Wed Jun 14 14:21:24 2017 +0000
@@ -0,0 +1,117 @@
+#include "mbed.h"
+#include "x_nucleo_53l0a1.h"
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <assert.h>
+
+/* This VL53L0X Expansion board test application performs a range measurement in interrupt mode
+   on the center embedded sensor. 
+   The measured data is displayed on the on-board 4-digit display, and sent to com port
+
+   User Blue button stops the current measurement and the entire program, releasing all resources.
+   Reset button is used to restart the program. 
+
+   Interrupt mode requires callback function which handles IRQ from given sensor.
+*/
+
+#define VL53L0_I2C_SDA   D14 
+#define VL53L0_I2C_SCL   D15 
+
+static X_NUCLEO_53L0A1 *board=NULL;
+VL53L0X_RangingMeasurementData_t data_sensor;
+OperatingMode operating_mode;
+    
+/* flags that handle interrupt request for sensor and user blue button*/
+volatile bool int_sensor_centre=false;
+volatile bool int_measuring_stop = false;
+
+
+/* ISR callback function of the center sensor */
+void SensorCenterIRQ(void)
+{
+   int_sensor_centre=true;
+   board->sensor_centre->DisableInterruptMeasureDetectionIRQ();
+}   
+
+/* ISR callback function of the user blue button to switch measuring sensor. */
+void MeasuringStopIRQ(void)
+{
+    int_measuring_stop = true;
+}
+
+/* On board 4 digit local display refresh */
+void DisplayRefresh(const VL53L0X_RangingMeasurementData_t &data)
+{   
+    char str[4];
+    if (data.RangeStatus == 0) // we have a valid range.
+    {
+        printf("%4d; ", data.RangeMilliMeter);
+        sprintf(str,"%4d", data.RangeMilliMeter);
+    }
+    else
+    {
+        sprintf(str,"%s", "----");   
+    }       
+    board->display->DisplayString(str);
+}
+
+void RangeMeasure(DevI2C *device_i2c) {
+   int status;
+
+   /* creates the 53L0A1 expansion board singleton obj */
+   board=X_NUCLEO_53L0A1::Instance(device_i2c, A2, D8, D2);
+    
+   board->display->DisplayString("53L0");
+   
+   /* setting operating mode to continuous interrupt */
+   operating_mode=range_continuous_interrupt;
+   
+   /* init the 53L0A1 expansion board with default values */
+   status=board->InitBoard();
+   if(status)
+   {
+        printf("Failed to init board!\n\r");   
+        return;
+   }
+   //Stop any measurement before setting sensor
+   status=board->sensor_centre->StopMeasurement(operating_mode);
+   status=board->sensor_centre->StartMeasurement(operating_mode, &SensorCenterIRQ); 
+   
+   if(!status)
+   {
+     printf ("Entering loop mode\r\n");
+     while (true)
+     { 
+        if (int_sensor_centre)
+        {
+            int_sensor_centre = false;
+            status = board->sensor_centre->HandleIRQ(operating_mode, &data_sensor);
+            DisplayRefresh(data_sensor);
+        }
+
+        if (int_measuring_stop)
+        {
+            printf("\r\nEnding loop mode \r\n");
+            break;
+        }
+     }
+   }
+   board->display->DisplayString("BYE");
+   delete board;        
+}    
+
+/*=================================== Main ==================================
+ Press the blue user button to stop the measurements in progress    
+=============================================================================*/
+int main()
+{   
+#if USER_BUTTON==PC_13  // we are cross compiling for Nucleo-f401 
+   InterruptIn stop_button (USER_BUTTON);
+   stop_button.rise (&MeasuringStopIRQ);  
+#endif   
+   DevI2C *device_i2c =new DevI2C(VL53L0_I2C_SDA, VL53L0_I2C_SCL);        
+   RangeMeasure(device_i2c);  // start continuous measures
+}
+
+
diff -r 000000000000 -r 218f6c31fda4 mbed.bld
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Wed Jun 14 14:21:24 2017 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/0f02307a0877
\ No newline at end of file