X-NUCLEO-53L0A1 Proximity Sensor Expansion Board Firmware Package

Introduction

This firmware package includes Component Device Drivers and the Board Support Package for STMicroelectronics' X-NUCLEO-53L0A1 Proximity sensor expansion board based on VL53L0X.

Firmware Library

Class X_NUCLEO_53L0A1 is intended to represent the Proximity sensor expansion board with the same name.

The expansion board provides support for the following components:

on-board VL53L0X proximity sensor,
up to two additional VL53L0X Satellites,
on-board 4-digit display

It is intentionally implemented as a singleton because only one X-NUCLEO-VL53L0A1 may be deployed at a time in a HW component stack. In order to get the singleton instance you have to call class method `Instance()`, e.g.:

// Sensors expansion board singleton instance
static X_NUCLEO_53L0A1 *board = X_NUCLEO_53L0A1::Instance(device_i2c, A2, D8, D2);

Example Applications

The library and sample application code were tested against mbed revision 143, dated 26th May 2017.

Diff: Components/VL53L0X/vl53l0x_class.h

Revision:: 13:615f7e38568c
Parent:: 12:f6e2bad00dc7
Child:: 14:8320b5ff96fa

--- a/Components/VL53L0X/vl53l0x_class.h	Wed Jun 14 14:39:27 2017 +0000
+++ b/Components/VL53L0X/vl53l0x_class.h	Thu Jun 15 13:33:35 2017 +0000
@@ -1,5 +1,5 @@
 /*******************************************************************************
- Copyright Â© 2016, STMicroelectronics International N.V.
+ Copyright Ã‚Â© 2016, STMicroelectronics International N.V.
  All rights reserved.
 
  Redistribution and use in source and binary forms, with or without
@@ -475,8 +475,8 @@
  */
     int WaitDeviceBooted()
     {
-       return VL53L0X_WaitDeviceBooted(Device);
-//			return 1;
+//       return VL53L0X_WaitDeviceBooted(Device);
+       return 1;
     }
 
 
@@ -501,7 +501,7 @@
 		return VL53L0X_DataInit(Device);
 	}
 	
-/** deprecated Init funtion from ComponentObject. for backward compatibility
+/** deprecated Init function from ComponentObject. for backward compatibility
 */	
     virtual int Init(void * NewAddr)
     {
@@ -585,7 +585,14 @@
     int RangeStartContinuousMode()
     {
 		int status;
-		status = RangeSetSystemMode(VL53L0X_REG_SYSRANGE_MODE_START_STOP|VL53L0X_REG_SYSRANGE_MODE_BACKTOBACK);
+        status = VL53L0X_SetDeviceMode(Device, VL53L0X_DEVICEMODE_CONTINUOUS_RANGING);
+
+        if(status == VL53L0X_ERROR_NONE)
+        {
+	        printf ("Call of VL53L0X_StartMeasurement\n");
+	        status = VL53L0X_StartMeasurement(Device);
+        }
+
     	return status;
     }
 
@@ -716,7 +723,7 @@
         StopMeasurement(range_single_shot_polling);
         return status;
     }
-/* Deprecated funtion from RangeSensor class. For backward compatibility*/	
+/* Deprecated function from RangeSensor class. For backward compatibility*/
 	virtual int GetDistance(uint32_t *piData)
 	{
 		return get_distance(piData);
@@ -734,17 +741,17 @@
  */
     int RangeConfigInterrupt(uint8_t ConfigGpioInt)
     {
-    	int status;
-		 if( ConfigGpioInt<= VL53L0X_REG_SYSTEM_INTERRUPT_GPIO_NEW_SAMPLE_READY)
+    	int status = VL53L0X_ERROR_NONE;
+/*		 if( ConfigGpioInt<= VL53L0X_REG_SYSTEM_INTERRUPT_GPIO_NEW_SAMPLE_READY)
 		 {
 		 	status = VL53L0X_UpdateByte(Device, VL53L0X_REG_SYSTEM_INTERRUPT_CONFIG_GPIO, (uint8_t)(~(0x7<<0)), ConfigGpioInt);
 		 }
 		 else
 		 {
 		 	status = 1;
-		 }	
-		//       return VL6180x_RangeConfigInterrupt(Device, ConfigGpioInt);
-			
+		 }
+*/
+//       return VL6180x_RangeConfigInterrupt(Device, ConfigGpioInt);
 		return status;
     }
 
@@ -1237,6 +1244,9 @@
     VL53L0X_Error VL53L0X_StartMeasurement(VL53L0X_DEV Dev);
     VL53L0X_Error VL53L0X_CheckAndLoadInterruptSettings(VL53L0X_DEV Dev,
     	uint8_t StartNotStopFlag);
+    VL53L0X_Error VL53L0X_SetInterruptThresholds(VL53L0X_DEV Dev,
+    	VL53L0X_DeviceModes DeviceMode, FixPoint1616_t ThresholdLow,
+    	FixPoint1616_t ThresholdHigh);
     VL53L0X_Error VL53L0X_GetInterruptThresholds(VL53L0X_DEV Dev,
     	VL53L0X_DeviceModes DeviceMode, FixPoint1616_t *pThresholdLow,
     	FixPoint1616_t *pThresholdHigh);