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:: 5:c82a48da3c9e
Parent:: 3:613d7f1ef60e
Child:: 6:fa6944a8850f

--- a/Components/VL53L0X/vl53l0x_class.h	Fri Dec 02 10:44:40 2016 +0000
+++ b/Components/VL53L0X/vl53l0x_class.h	Mon Dec 05 11:28:33 2016 +0000
@@ -42,6 +42,7 @@
 
 
 /* Includes ------------------------------------------------------------------*/
+#include "mbed.h"
 #include "RangeSensor.h"
 #include "DevI2C.h" 
 
@@ -484,50 +485,9 @@
  * @param void
  * @return     0 on success,  @a #CALIBRATION_WARNING if failed
  */		
-//    virtual int Init()
     virtual int Init(void * NewAddr)
     {
-//       return VL53L0X_DataInit(&MyDevice);
        return VL53L0X_DataInit(Device);
-/*
-       int status;
-
-       VL6180x_Off();
-       VL6180x_On();
-
-       status=VL6180x_WaitDeviceBooted(Device);
-       if(status) {
-          VL6180x_ErrLog("WaitDeviceBooted fail\n\r");
-       }
-       status=IsPresent();
-       if(!status)
-       {
-          Device->Present=1;
-          VL6180x_InitData(Device);
-          if(status)
-          {
-             printf("Failed to init VL6180X sensor!\n\r");
-             return status;
-          }
-          status=Prepare();
-          if(status)
-          {
-             printf("Failed to prepare VL6180X!\n\r");
-             return status;
-          }
-          if(*(uint8_t*)NewAddr!=DEFAULT_DEVICE_ADDRESS)
-          {
-             status=SetI2CAddress(*(uint8_t*)NewAddr);
-             if(status)
-             {
-                printf("Failed to change I2C address!\n\r");
-                return status;
-             }
-          }
-          Device->Ready=1;
-       }
-       return status;
-*/
     }
 
 /**
@@ -568,7 +528,6 @@
   */		
     int Prepare()
     {
-//       return VL6180x_Prepare(Device);
 			// taken from rangingTest() in vl53l0x_SingleRanging_Example.c
 		VL53L0X_Error Status = VL53L0X_ERROR_NONE;
         uint32_t refSpadCount;
@@ -1399,9 +1358,8 @@
     int IsPresent()
     {
        int status;
-       uint8_t id;
 			
-       status=ReadID(&id);
+       status=ReadID((uint8_t *)MyDevice.I2cDevAddr);
        if(status)
           VL53L0X_ErrLog("Failed to read ID device. Device not present!\n\r");
        return status;
@@ -1420,9 +1378,6 @@
 		
     /* IO Device */
     DevI2C &dev_i2c;
-    /* GPIO expander */
-//    STMPE1600 &io_expander;
-//    ExpGpioPinName xshutdown;
     /* Digital out pin */
     DigitalOut *gpio0;
     /* GPIO expander */