Julien Tiron / X_NUCLEO_IHM01A1

Dependents:   1-DoorCloser

Fork of X_NUCLEO_IHM01A1 by Robotique FIP

Files at this revision

API Documentation at this revision

Comitter:
Davidroid
Date:
Wed Oct 14 15:12:18 2015 +0000
Child:
1:b38ebb8ea286
Commit message:
Library to handle the X_NUCLEO_IHM01A1 Motor Control Expansion Board.

Changed in this revision

Components/Common/component.h Show annotated file Show diff for this revision Revisions of this file
Components/Common/motor.h Show annotated file Show diff for this revision Revisions of this file
Components/Interfaces/Component_class.h Show annotated file Show diff for this revision Revisions of this file
Components/Interfaces/Motor_class.h Show annotated file Show diff for this revision Revisions of this file
Components/l6474/l6474.h Show annotated file Show diff for this revision Revisions of this file
Components/l6474/l6474_class.cpp Show annotated file Show diff for this revision Revisions of this file
Components/l6474/l6474_class.h Show annotated file Show diff for this revision Revisions of this file
Components/l6474/l6474_target_config.h Show annotated file Show diff for this revision Revisions of this file
X_NUCLEO_COMMON.lib Show annotated file Show diff for this revision Revisions of this file
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Components/Common/component.h	Wed Oct 14 15:12:18 2015 +0000
@@ -0,0 +1,91 @@
+/**
+ ******************************************************************************
+ * @file    component.h
+ * @author  AST
+ * @version V1.0.0
+ * @date    1 April 2015
+ * @brief   Generic header file containing a generic component's definitions
+ *          and I/O functions.
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>&copy; COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *   1. Redistributions of source code must retain the above copyright notice,
+ *      this list of conditions and the following disclaimer.
+ *   2. Redistributions in binary form must reproduce the above copyright notice,
+ *      this list of conditions and the following disclaimer in the documentation
+ *      and/or other materials provided with the distribution.
+ *   3. Neither the name of STMicroelectronics nor the names of its contributors
+ *      may be used to endorse or promote products derived from this software
+ *      without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ ******************************************************************************
+ */
+
+
+/* Prevent recursive inclusion -----------------------------------------------*/
+
+#ifndef __COMPONENT_H__
+#define __COMPONENT_H__
+
+
+/* Types ---------------------------------------------------------------------*/
+
+/**
+ * @brief  Component's Context structure definition.
+ */
+typedef struct
+{  
+    /* Identity. */
+    uint8_t who_am_i;
+
+    /* ACTION ----------------------------------------------------------------*/
+    /* There should be only a unique identifier for each component, which     */
+    /* should be the "who_am_i" parameter, hence this parameter is optional.  */
+    /* -----------------------------------------------------------------------*/
+    /* Type. */
+    uint8_t type;
+
+    /* Configuration. */
+    uint8_t address;
+
+    /* Pointer to the Data. */
+    void *pData;
+
+    /* Pointer to the Virtual Table. */
+    void *pVTable;
+
+    /* ACTION ----------------------------------------------------------------*/
+    /* There should be only a unique virtual table for each component, which  */
+    /* should be the "pVTable" parameter, hence this parameter is optional.   */
+    /* -----------------------------------------------------------------------*/
+    /* Pointer to the Extended Virtual Table. */
+    void *pExtVTable;
+} DrvContextTypeDef;
+
+/**
+ * @brief  Component's Status enumerator definition.
+ */
+typedef enum
+{
+    COMPONENT_OK = 0,
+    COMPONENT_ERROR,
+    COMPONENT_TIMEOUT,
+    COMPONENT_NOT_IMPLEMENTED
+} DrvStatusTypeDef;
+
+#endif
\ No newline at end of file
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Components/Common/motor.h	Wed Oct 14 15:12:18 2015 +0000
@@ -0,0 +1,373 @@
+/**
+  ******************************************************************************
+  * @file    motor.h
+  * @author  IPC Rennes
+  * @version V1.3.0
+  * @date    November 12, 2014
+  * @brief   This file contains all the functions prototypes for motor drivers.   
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
+  *
+  * Redistribution and use in source and binary forms, with or without modification,
+  * are permitted provided that the following conditions are met:
+  *   1. Redistributions of source code must retain the above copyright notice,
+  *      this list of conditions and the following disclaimer.
+  *   2. Redistributions in binary form must reproduce the above copyright notice,
+  *      this list of conditions and the following disclaimer in the documentation
+  *      and/or other materials provided with the distribution.
+  *   3. Neither the name of STMicroelectronics nor the names of its contributors
+  *      may be used to endorse or promote products derived from this software
+  *      without specific prior written permission.
+  *
+  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+  *
+  ******************************************************************************
+  */ 
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __MOTOR_H
+#define __MOTOR_H
+
+#ifdef __cplusplus
+ extern "C" {
+#endif 
+
+/* Includes ------------------------------------------------------------------*/
+#include <stdint.h>
+#include "component.h"
+   
+/** @addtogroup BSP
+  * @{
+  */
+
+/** @addtogroup Components
+  * @{
+  */ 
+
+/** @defgroup Motor
+  * @{
+  */
+    
+/** @defgroup Motor_Exported_Constants
+  * @{
+  */   
+   
+/// boolean for false condition 
+#ifndef FALSE
+#define FALSE (0)
+#endif
+/// boolean for true condition 
+#ifndef TRUE
+#define TRUE  (1)
+#endif
+
+   /**
+  * @}
+  */
+   
+/** @defgroup Motor_Exported_Types
+  * @{
+  */
+
+   /** @defgroup Motor_Boolean_Type
+  * @{
+  */
+///bool Type
+//typedef uint8_t bool;
+/**
+  * @}
+  */   
+   
+/** @defgroup Device_Direction_Options
+  * @{
+  */
+/// Direction options
+typedef enum {
+  BACKWARD = 0,
+  FORWARD = 1
+} motorDir_t;
+/**
+  * @}
+  */
+  
+/** @defgroup Device_Action_Options
+  * @{
+  */
+/// Action options
+typedef enum {
+  ACTION_RESET = ((uint8_t)0x00),
+  ACTION_COPY  = ((uint8_t)0x08)
+} motorAction_t;
+/**
+  * @}
+  */  
+
+/** @defgroup Device_States
+  * @{
+  */
+/// Device states
+typedef enum {
+  ACCELERATING = 0, 
+  DECELERATING = 1, 
+  STEADY = 2,
+  INACTIVE= 3
+} motorState_t;
+/**
+  * @}
+  */   
+
+/** @defgroup Device_Step_mode
+  * @{
+  */
+ /// Stepping options 
+typedef enum {
+  STEP_MODE_FULL   = ((uint8_t)0x00), 
+  STEP_MODE_HALF   = ((uint8_t)0x01),
+  STEP_MODE_1_4    = ((uint8_t)0x02),
+  STEP_MODE_1_8    = ((uint8_t)0x03),
+  STEP_MODE_1_16   = ((uint8_t)0x04),
+  STEP_MODE_1_32   = ((uint8_t)0x05),
+  STEP_MODE_1_64   = ((uint8_t)0x06),
+  STEP_MODE_1_128  = ((uint8_t)0x07)
+} motorStepMode_t;
+/**
+  * @}
+  */   
+
+/** @defgroup Device_Commands
+  * @{
+  */
+/// Device commands 
+typedef enum {
+  RUN_CMD, 
+  MOVE_CMD, 
+  SOFT_STOP_CMD, 
+  NO_CMD
+} deviceCommand_t;
+/**
+  * @}
+  */
+
+/** @defgroup Device_Parameters
+  * @{
+  */
+/// Device Parameters Structure Type
+typedef struct {
+  /// accumulator used to store speed increase smaller than 1 pps
+  volatile uint32_t accu;           
+  /// Position in steps at the start of the goto or move commands
+  volatile int32_t currentPosition; 
+  /// position in step at the end of the accelerating phase
+  volatile uint32_t endAccPos;      
+  /// nb steps performed from the beggining of the goto or the move command
+  volatile uint32_t relativePos;    
+  /// position in step at the start of the decelerating phase
+  volatile uint32_t startDecPos;    
+  /// nb steps to perform for the goto or move commands
+  volatile uint32_t stepsToTake;   
+  
+  /// acceleration in pps^2 
+  volatile uint16_t acceleration;  
+  /// deceleration in pps^2
+  volatile uint16_t deceleration;  
+  /// max speed in pps (speed use for goto or move command)
+  volatile uint16_t maxSpeed;      
+  /// min speed in pps
+  volatile uint16_t minSpeed;      
+  /// current speed in pps    
+  volatile uint16_t speed;         
+  
+  /// command under execution
+  volatile deviceCommand_t commandExecuted; 
+  /// FORWARD or BACKWARD direction
+  volatile motorDir_t direction;                 
+  /// Current State of the device
+  volatile motorState_t motionState;       
+} deviceParams_t;
+/**
+  * @}
+  */
+
+/** @defgroup Motor_Driver_Initialization_Structure
+  * @{
+  */
+/// Motor driver initialization structure definition  
+typedef struct
+{
+  int placeholder;
+} MOTOR_InitTypeDef;
+/**
+  * @}
+  */
+
+/** @defgroup Motor_Driver_Structure
+  * @{
+  */
+/// Motor driver structure definition  
+typedef struct
+{
+  /* Generic */
+  /* ACTION ----------------------------------------------------------------*
+   * Declare here component's generic functions.                            *
+   *                                                                        *
+   * Example:                                                               *
+   *   DrvStatusTypeDef (*Init)(void *handle, INTERFACE_InitTypeDef *init); *
+   *------------------------------------------------------------------------*/
+  DrvStatusTypeDef (*Init)(void *handle, MOTOR_InitTypeDef *init);
+  DrvStatusTypeDef (*ReadID)(void *handle, uint8_t *id);
+
+  /* Interrupts */
+  /* ACTION ----------------------------------------------------------------*
+   * Declare here component's interrupts related functions.                 *
+   *                                                                        *
+   * Example:                                                               *
+   *   void (*ConfigIT)(void *handle, uint16_t a);                          *
+   *------------------------------------------------------------------------*/
+  /// Function pointer to AttachErrorHandler
+  void (*AttachErrorHandler)(void *handle, void (*callback)(void *handle, uint16_t error));
+  /// Function pointer to AttachFlagInterrupt
+  void (*AttachFlagInterrupt)(void *handle, void (*callback)(void *handle));
+  /// Function pointer to AttachBusyInterrupt
+  void (*AttachBusyInterrupt)(void *handle, void (*callback)(void *handle));
+  /// Function pointer to FlagInterruptHandler
+  void (*FlagInterruptHandler)(void *handle);
+
+  /* Specific */
+  /* ACTION ----------------------------------------------------------------*
+   * Declare here component's specific functions.                           *
+   *                                                                        *
+   * Example:                                                               *
+   *   DrvStatusTypeDef (*GetValue)(void *handle, float *pfData);           *
+   *------------------------------------------------------------------------*/
+  /// Function pointer to GetAcceleration
+  uint16_t (*GetAcceleration)(void *handle); 
+  /// Function pointer to GetCurrentSpeed
+  uint16_t (*GetCurrentSpeed)(void *handle); 
+  /// Function pointer to GetDeceleration
+  uint16_t (*GetDeceleration)(void *handle); 
+  /// Function pointer to GetDeviceState
+  motorState_t(*GetDeviceState)(void *handle); 
+  /// Function pointer to GetFwVersion
+  uint8_t (*GetFwVersion)(void *handle); 
+  /// Function pointer to GetMark
+  int32_t (*GetMark)(void *handle); 
+  /// Function pointer to GetMaxSpeed
+  uint16_t (*GetMaxSpeed)(void *handle); 
+  /// Function pointer to GetMinSpeed
+  uint16_t (*GetMinSpeed)(void *handle); 
+  /// Function pointer to GetPosition
+  int32_t (*GetPosition)(void *handle); 
+  /// Function pointer to GoHome
+  void (*GoHome)(void *handle); 
+  /// Function pointer to GoMark
+  void (*GoMark)(void *handle); 
+  /// Function pointer to GoTo
+  void (*GoTo)(void *handle, int32_t targetPosition); 
+  /// Function pointer to HardStop
+  void (*HardStop)(void *handle); 
+  /// Function pointer to Move
+  void (*Move)(void *handle, motorDir_t direction, uint32_t stepCount); 
+  /// Function pointer to ResetAllDevices
+  //void (*ResetAllDevices)(void *handle); 
+  /// Function pointer to Run
+  void (*Run)(void *handle, motorDir_t direction);
+  /// Function pointer to SetAcceleration
+  bool(*SetAcceleration)(void *handle,uint16_t newAcc);
+  /// Function pointer to SetDeceleration
+  bool(*SetDeceleration)(void *handle, uint16_t newDec);
+  /// Function pointer to SetHome
+  void (*SetHome)(void *handle); 
+  /// Function pointer to SetMark
+  void (*SetMark)(void *handle); 
+  /// Function pointer to SetMaxSpeed
+  bool (*SetMaxSpeed)(void *handle, uint16_t newMaxSpeed); 
+  /// Function pointer to SetMinSpeed
+  bool (*SetMinSpeed)(void *handle, uint16_t newMinSpeed); 
+  /// Function pointer to SoftStop
+  bool (*SoftStop)(void *handle); 
+  /// Function pointer to StepClockHandler
+  void (*StepClockHandler)(void *handle);  
+  /// Function pointer to CmdDisable
+  void (*CmdDisable)(void *handle); 
+  /// Function pointer to CmdEnable
+  void (*CmdEnable)(void *handle);
+  /// Function pointer to CmdGetParam
+  uint32_t (*CmdGetParam)(void *handle, uint32_t param);
+  /// Function pointer to CmdGetStatus
+  uint16_t (*CmdGetStatus)(void *handle); 
+  /// Function pointer to CmdNop
+  void (*CmdNop)(void *handle); 
+  /// Function pointer to CmdSetParam  
+  void (*CmdSetParam)(void *handle, uint32_t param, uint32_t value);
+  /// Function pointer to ReadStatusRegister
+  uint16_t (*ReadStatusRegister)(void *handle); 
+  /// Function pointer to ReleaseReset
+  void (*ReleaseReset)(void *handle);
+  /// Function pointer to Reset
+  void (*Reset)(void *handle); 
+  /// Function pointer to SelectStepMode
+  void (*SelectStepMode)(void *handle, motorStepMode_t stepMod); 
+  /// Function pointer to SetDirection
+  void (*SetDirection)(void *handle, motorDir_t direction);  
+  /// Function pointer to CmdGoToDir
+  void (*CmdGoToDir)(void *handle, motorDir_t direction, int32_t targetPosition);
+  /// Function pointer to CheckBusyHw
+  uint8_t (*CheckBusyHw)(void *handle);
+  /// Function pointer to CheckStatusHw
+  uint8_t (*CheckStatusHw)(void *handle);
+  /// Function pointer to CmdGoUntil
+  void (*CmdGoUntil)(void *handle, motorAction_t action, motorDir_t direction, uint32_t targetPosition);
+  /// Function pointer to CmdHardHiZ
+  void (*CmdHardHiZ)(void *handle);
+  /// Function pointer to CmdReleaseSw
+  void (*CmdReleaseSw)(void *handle, motorAction_t action, motorDir_t direction);
+  /// Function pointer to CmdResetDevice
+  void (*CmdResetDevice)(void *handle);
+  /// Function pointer to CmdResetPos
+  void (*CmdResetPos)(void *handle);
+  /// Function pointer to CmdRun
+  void (*CmdRun)(void *handle, motorDir_t direction, uint32_t targetPosition);
+  /// Function pointer to CmdSoftHiZ
+  void (*CmdSoftHiZ)(void *handle);
+  /// Function pointer to CmdStepClock
+  void (*CmdStepClock)(void *handle, motorDir_t direction);
+  /// Function pointer to FetchAndClearAllStatus
+  void (*FetchAndClearAllStatus)(void *handle);
+  /// Function pointer to GetFetchedStatus
+  uint16_t (*GetFetchedStatus)(void *handle);
+  /// Function pointer to GetNbDevices
+  uint8_t (*GetNbDevices)(void *handle);
+  /// Function pointer to IsDeviceBusy
+  bool (*IsDeviceBusy)(void *handle);
+  /// Function pointer to SendQueuedCommands
+  void (*SendQueuedCommands)(void *handle);
+  /// Function pointer to QueueCommands  
+  void (*QueueCommands)(void *handle, uint8_t temp, uint32_t command);
+  /// Function pointer to WaitForAllDevicesNotBusy  
+  void (*WaitForAllDevicesNotBusy)(void *handle);  
+  /// Function pointer to ErrorHandler  
+  void (*ErrorHandler)(void *handle, uint16_t error);
+  /// Function pointer to BusyInterruptHandler
+  void (*BusyInterruptHandler)(void *handle);
+  /// Function pointer to CmdSoftStop
+  void (*CmdSoftStop)(void *handle); 
+} MOTOR_DrvVTableTypeDef;    
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __MOTOR_H */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Components/Interfaces/Component_class.h	Wed Oct 14 15:12:18 2015 +0000
@@ -0,0 +1,75 @@
+/**
+ ******************************************************************************
+ * @file    Component_class.h
+ * @author  AST / EST
+ * @version V0.0.1
+ * @date    13-April-2015
+ * @brief   This file contains the abstract class describing the interface of a
+ *          generic component.
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>&copy; COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *   1. Redistributions of source code must retain the above copyright notice,
+ *      this list of conditions and the following disclaimer.
+ *   2. Redistributions in binary form must reproduce the above copyright notice,
+ *      this list of conditions and the following disclaimer in the documentation
+ *      and/or other materials provided with the distribution.
+ *   3. Neither the name of STMicroelectronics nor the names of its contributors
+ *      may be used to endorse or promote products derived from this software
+ *      without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ ******************************************************************************
+ */
+
+
+/* Define to prevent from recursive inclusion --------------------------------*/
+
+#ifndef __COMPONENT_CLASS_H
+#define __COMPONENT_CLASS_H
+
+
+/* Includes ------------------------------------------------------------------*/
+
+#include <stdint.h>
+
+
+/* Classes  ------------------------------------------------------------------*/
+
+/** An abstract class for Generic components.
+ */
+class Component
+{
+public:
+    /**
+     * @brief       Initialization of the component.
+     * @param[out]  ptr Pointer to device specific initalization structure.
+     * @return      0 in case of success, an error code otherwise.
+     */
+    virtual int Init(void *ptr) = 0;
+
+    /**
+     * @brief       Get ID of the component.
+     * @param[out]  id Pointer to where to store the ID to.
+     * @return      0 in case of success, an error code otherwise.
+     */
+    virtual int ReadID(uint8_t *id) = 0;
+};
+
+#endif /* __COMPONENT_CLASS_H */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ 
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Components/Interfaces/Motor_class.h	Wed Oct 14 15:12:18 2015 +0000
@@ -0,0 +1,120 @@
+/**
+ ******************************************************************************
+ * @file    Motor_class.h
+ * @author  AST / EST
+ * @version V0.0.1
+ * @date    13-April-2015
+ * @brief   This file contains the abstract class describing the interface of a
+ *          motor component.
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>&copy; COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *   1. Redistributions of source code must retain the above copyright notice,
+ *      this list of conditions and the following disclaimer.
+ *   2. Redistributions in binary form must reproduce the above copyright notice,
+ *      this list of conditions and the following disclaimer in the documentation
+ *      and/or other materials provided with the distribution.
+ *   3. Neither the name of STMicroelectronics nor the names of its contributors
+ *      may be used to endorse or promote products derived from this software
+ *      without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ ******************************************************************************
+ */
+
+
+/* Generated with Stm32CubeTOO -----------------------------------------------*/
+
+
+/* Revision ------------------------------------------------------------------*/
+/*
+    Repository:       http://svn.x-nucleodev.codex.cro.st.com/svnroot/X-NucleoDev
+    Branch/Trunk/Tag: trunk
+    Based on:         X-CUBE-SPN1/trunk/Drivers/BSP/Components/Common/motor.h
+    Revision:         0
+*/
+
+
+/* Define to prevent from recursive inclusion --------------------------------*/
+
+#ifndef __MOTOR_CLASS_H
+#define __MOTOR_CLASS_H
+
+
+/* Includes ------------------------------------------------------------------*/
+
+#include <Component_class.h>
+
+
+/* Classes  ------------------------------------------------------------------*/
+
+/** An abstract class for Motor components.
+ */
+class Motor : public Component
+{
+public:
+    /* ACTION 1 --------------------------------------------------------------*
+     * Declare here the interface's methods.                                  *
+     * They should be:                                                        *
+     *   + Methods with the same name of the C component's virtual table      *
+     *     (and extended virtual table, if any)'s functions, provided that    *
+     *     the component's driver implements them (i.e.: the corresponding    *
+     *     pointer to function is not "0").                                   *
+     *                                                                        *
+     * Example:                                                               *
+     *    virtual int GetValue(float *pfData) = 0;                            *
+     *------------------------------------------------------------------------*/
+    virtual uint16_t GetAcceleration (void) = 0;
+    virtual uint16_t GetCurrentSpeed (void) = 0;
+    virtual uint16_t GetDeceleration (void) = 0;
+    virtual motorState_t GetDeviceState (void) = 0;
+    virtual uint8_t GetFwVersion (void) = 0;
+    virtual int32_t GetMark (void) = 0;
+    virtual uint16_t GetMaxSpeed (void) = 0;
+    virtual uint16_t GetMinSpeed (void) = 0;
+    virtual int32_t GetPosition (void) = 0;
+    virtual void GoHome (void) = 0;
+    virtual void GoMark (void) = 0;
+    virtual void GoTo (int32_t targetPosition) = 0;
+    virtual void HardStop (void) = 0;
+    virtual void Move (motorDir_t direction, uint32_t stepCount) = 0;
+    virtual void Run (motorDir_t direction) = 0;
+    virtual bool SetAcceleration (uint16_t newAcc) = 0;
+    virtual bool SetDeceleration (uint16_t newDec) = 0;
+    virtual void SetHome (void) = 0;
+    virtual void SetMark (void) = 0;
+    virtual bool SetMaxSpeed (uint16_t newMaxSpeed) = 0;
+    virtual bool SetMinSpeed (uint16_t newMinSpeed) = 0;
+    virtual bool SoftStop (void) = 0;
+    virtual void StepClockHandler (void) = 0;
+    virtual void CmdDisable (void) = 0;
+    virtual void CmdEnable (void) = 0;
+    virtual uint32_t CmdGetParam (uint32_t param) = 0;
+    virtual uint16_t CmdGetStatus (void) = 0;
+    virtual void CmdNop (void) = 0;
+    virtual void CmdSetParam (uint32_t param, uint32_t value) = 0;
+    virtual uint16_t ReadStatusRegister (void) = 0;
+    virtual void ReleaseReset (void) = 0;
+    virtual void Reset (void) = 0;
+    virtual void SelectStepMode (motorStepMode_t stepMod) = 0;
+    virtual void SetDirection (motorDir_t direction) = 0;
+    virtual void ErrorHandler (uint16_t error) = 0;
+};
+
+#endif /* __MOTOR_CLASS_H */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ 
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Components/l6474/l6474.h	Wed Oct 14 15:12:18 2015 +0000
@@ -0,0 +1,530 @@
+/**
+  ******************************************************************************
+  * @file    l6474.h 
+  * @author  IPC Rennes
+  * @version V1.5.0
+  * @date    November 12, 2014
+  * @brief   Header for L6474 driver (fully integrated microstepping motor driver)
+  * @note    (C) COPYRIGHT 2014 STMicroelectronics
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
+  *
+  * Redistribution and use in source and binary forms, with or without modification,
+  * are permitted provided that the following conditions are met:
+  *   1. Redistributions of source code must retain the above copyright notice,
+  *      this list of conditions and the following disclaimer.
+  *   2. Redistributions in binary form must reproduce the above copyright notice,
+  *      this list of conditions and the following disclaimer in the documentation
+  *      and/or other materials provided with the distribution.
+  *   3. Neither the name of STMicroelectronics nor the names of its contributors
+  *      may be used to endorse or promote products derived from this software
+  *      without specific prior written permission.
+  *
+  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+  *
+  ******************************************************************************
+  */
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __L6474_H
+#define __L6474_H
+
+#ifdef __cplusplus
+ extern "C" {
+#endif 
+
+/* Includes ------------------------------------------------------------------*/
+#include "l6474_target_config.h"
+#include "../Common/motor.h"
+   
+/** @addtogroup BSP
+  * @{
+  */   
+   
+/** @addtogroup L6474
+  * @{
+  */   
+   
+/* Exported Constants --------------------------------------------------------*/
+
+/** @defgroup L6474_Exported_Constants
+  * @{
+  */   
+
+/// Current FW version
+#define L6474_FW_VERSION (5)
+
+/// L6474 max number of bytes of command & arguments to set a parameter
+#define L6474_CMD_ARG_MAX_NB_BYTES              (4)
+
+/// L6474 command + argument bytes number for GET_STATUS command
+#define L6474_CMD_ARG_NB_BYTES_GET_STATUS       (1)
+
+/// L6474 response bytes number
+#define L6474_RSP_NB_BYTES_GET_STATUS           (2)
+
+/// L6474 value mask for ABS_POS register
+#define L6474_ABS_POS_VALUE_MASK    ((uint32_t) 0x003FFFFF)
+   
+/// L6474 sign bit mask for ABS_POS register
+#define L6474_ABS_POS_SIGN_BIT_MASK ((uint32_t) 0x00200000)
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+     
+/* Exported Types  -------------------------------------------------------*/
+
+/** @defgroup L6474_Exported_Types
+  * @{
+  */   
+
+/** @defgroup L6474_Fast_Decay_Time_Options  
+  * @{
+  */
+///TOFF_FAST values for T_FAST register
+typedef enum {
+  L6474_TOFF_FAST_2us = ((uint8_t) 0x00 << 4),
+  L6474_TOFF_FAST_4us = ((uint8_t) 0x01 << 4),
+  L6474_TOFF_FAST_6us = ((uint8_t) 0x02 << 4),
+  L6474_TOFF_FAST_8us = ((uint8_t) 0x03 << 4),
+  L6474_TOFF_FAST_10us = ((uint8_t) 0x04 << 4),
+  L6474_TOFF_FAST_12us = ((uint8_t) 0x05 << 4),
+  L6474_TOFF_FAST_14us = ((uint8_t) 0x06 << 4),
+  L6474_TOFF_FAST_16us = ((uint8_t) 0x07 << 4),
+  L6474_TOFF_FAST_18us = ((uint8_t) 0x08 << 4),
+  L6474_TOFF_FAST_20us = ((uint8_t) 0x09 << 4),
+  L6474_TOFF_FAST_22us = ((uint8_t) 0x0A << 4),
+  L6474_TOFF_FAST_24us = ((uint8_t) 0x0B << 4),
+  L6474_TOFF_FAST_26us = ((uint8_t) 0x0C << 4),
+  L6474_TOFF_FAST_28us = ((uint8_t) 0x0D << 4),
+  L6474_TOFF_FAST_30us = ((uint8_t) 0x0E << 4),
+  L6474_TOFF_FAST_32us = ((uint8_t) 0x0F << 4)
+} L6474_TOFF_FAST_t;
+/**
+  * @}
+  */
+
+/** @defgroup L6474_Fall_Step_Time_Options 
+  * @{
+  */
+///FAST_STEP values for T_FAST register
+typedef enum {
+  L6474_FAST_STEP_2us = ((uint8_t) 0x00),
+  L6474_FAST_STEP_4us = ((uint8_t) 0x01),
+  L6474_FAST_STEP_6us = ((uint8_t) 0x02),
+  L6474_FAST_STEP_8us = ((uint8_t) 0x03),
+  L6474_FAST_STEP_10us = ((uint8_t) 0x04),
+  L6474_FAST_STEP_12us = ((uint8_t) 0x05),
+  L6474_FAST_STEP_14us = ((uint8_t) 0x06),
+  L6474_FAST_STEP_16us = ((uint8_t) 0x07),
+  L6474_FAST_STEP_18us = ((uint8_t) 0x08),
+  L6474_FAST_STEP_20us = ((uint8_t) 0x09),
+  L6474_FAST_STEP_22us = ((uint8_t) 0x0A),
+  L6474_FAST_STEP_24us = ((uint8_t) 0x0B),
+  L6474_FAST_STEP_26us = ((uint8_t) 0x0C),
+  L6474_FAST_STEP_28us = ((uint8_t) 0x0D),
+  L6474_FAST_STEP_30us = ((uint8_t) 0x0E),
+  L6474_FAST_STEP_32us = ((uint8_t) 0x0F)
+} L6474_FAST_STEP_t;
+/**
+  * @}
+  */
+
+/** @defgroup L6474_Overcurrent_Threshold_options
+  * @{
+  */
+///OCD_TH register
+typedef enum {
+  L6474_OCD_TH_375mA  = ((uint8_t) 0x00),
+  L6474_OCD_TH_750mA  = ((uint8_t) 0x01),
+  L6474_OCD_TH_1125mA = ((uint8_t) 0x02),
+  L6474_OCD_TH_1500mA = ((uint8_t) 0x03),
+  L6474_OCD_TH_1875mA = ((uint8_t) 0x04),
+  L6474_OCD_TH_2250mA = ((uint8_t) 0x05),
+  L6474_OCD_TH_2625mA = ((uint8_t) 0x06),
+  L6474_OCD_TH_3000mA = ((uint8_t) 0x07),
+  L6474_OCD_TH_3375mA = ((uint8_t) 0x08),
+  L6474_OCD_TH_3750mA = ((uint8_t) 0x09),
+  L6474_OCD_TH_4125mA = ((uint8_t) 0x0A),
+  L6474_OCD_TH_4500mA = ((uint8_t) 0x0B),
+  L6474_OCD_TH_4875mA = ((uint8_t) 0x0C),
+  L6474_OCD_TH_5250mA = ((uint8_t) 0x0D),
+  L6474_OCD_TH_5625mA = ((uint8_t) 0x0E),
+  L6474_OCD_TH_6000mA = ((uint8_t) 0x0F)
+} L6474_OCD_TH_t;
+/**
+  * @}
+  */
+
+/** @defgroup L6474_STEP_MODE_Register_Masks 
+  * @{
+  */  
+///STEP_MODE register
+typedef enum {
+  L6474_STEP_MODE_STEP_SEL = ((uint8_t) 0x07),
+  L6474_STEP_MODE_SYNC_SEL = ((uint8_t) 0x70)
+} L6474_STEP_MODE_Masks_t;
+/**
+  * @}
+  */
+
+/** @defgroup L6474_STEP_SEL_Options_For_STEP_MODE_Register
+  * @{
+  */
+///STEP_SEL field of STEP_MODE register
+typedef enum {
+  L6474_STEP_SEL_1    = ((uint8_t) 0x08),  //full step
+  L6474_STEP_SEL_1_2  = ((uint8_t) 0x09),  //half step
+  L6474_STEP_SEL_1_4  = ((uint8_t) 0x0A),  //1/4 microstep
+  L6474_STEP_SEL_1_8  = ((uint8_t) 0x0B),  //1/8 microstep
+  L6474_STEP_SEL_1_16 = ((uint8_t) 0x0C)   //1/16 microstep
+} L6474_STEP_SEL_t;
+/**
+  * @}
+  */
+
+/** @defgroup L6474_SYNC_SEL_Options_For_STEP_MODE_Register 
+  * @{
+  */
+///SYNC_SEL field of STEP_MODE register
+typedef enum {
+  L6474_SYNC_SEL_1_2    = ((uint8_t) 0x80),
+  L6474_SYNC_SEL_1      = ((uint8_t) 0x90),
+  L6474_SYNC_SEL_2      = ((uint8_t) 0xA0),
+  L6474_SYNC_SEL_4      = ((uint8_t) 0xB0),
+  L6474_SYNC_SEL_8      = ((uint8_t) 0xC0),
+  L6474_SYNC_SEL_UNUSED = ((uint8_t) 0xD0)
+} L6474_SYNC_SEL_t;
+/**
+  * @}
+  */
+
+/** @defgroup L6474_ALARM_EN_Register_Options
+  * @{
+  */
+///ALARM_EN register
+typedef enum {
+  L6474_ALARM_EN_OVERCURRENT      = ((uint8_t) 0x01),
+  L6474_ALARM_EN_THERMAL_SHUTDOWN = ((uint8_t) 0x02),
+  L6474_ALARM_EN_THERMAL_WARNING  = ((uint8_t) 0x04),
+  L6474_ALARM_EN_UNDERVOLTAGE     = ((uint8_t) 0x08),
+  L6474_ALARM_EN_SW_TURN_ON       = ((uint8_t) 0x40),
+  L6474_ALARM_EN_WRONG_NPERF_CMD  = ((uint8_t) 0x80)
+} L6474_ALARM_EN_t;
+/**
+  * @}
+  */
+
+/** @defgroup L6474_CONFIG_Register_Masks
+  * @{
+  */
+///CONFIG register
+typedef enum {
+  L6474_CONFIG_OSC_SEL  = ((uint16_t) 0x0007),
+  L6474_CONFIG_EXT_CLK  = ((uint16_t) 0x0008),
+  L6474_CONFIG_EN_TQREG = ((uint16_t) 0x0020),
+  L6474_CONFIG_OC_SD    = ((uint16_t) 0x0080),
+  L6474_CONFIG_POW_SR   = ((uint16_t) 0x0300),
+  L6474_CONFIG_TOFF      = ((uint16_t) 0x7C00)
+} L6474_CONFIG_Masks_t;
+/**
+  * @}
+  */
+
+/** @defgroup L6474_Clock_Source_Options_For_CONFIG_Register
+  * @{
+  */
+///Clock source option for CONFIG register
+typedef enum {
+  L6474_CONFIG_INT_16MHZ = ((uint16_t) 0x0000),
+  L6474_CONFIG_INT_16MHZ_OSCOUT_2MHZ   = ((uint16_t) 0x0008),
+  L6474_CONFIG_INT_16MHZ_OSCOUT_4MHZ   = ((uint16_t) 0x0009),
+  L6474_CONFIG_INT_16MHZ_OSCOUT_8MHZ   = ((uint16_t) 0x000A),
+  L6474_CONFIG_INT_16MHZ_OSCOUT_16MHZ  = ((uint16_t) 0x000B),
+  L6474_CONFIG_EXT_8MHZ_XTAL_DRIVE     = ((uint16_t) 0x0004),
+  L6474_CONFIG_EXT_16MHZ_XTAL_DRIVE    = ((uint16_t) 0x0005),
+  L6474_CONFIG_EXT_24MHZ_XTAL_DRIVE    = ((uint16_t) 0x0006),
+  L6474_CONFIG_EXT_32MHZ_XTAL_DRIVE    = ((uint16_t) 0x0007),
+  L6474_CONFIG_EXT_8MHZ_OSCOUT_INVERT  = ((uint16_t) 0x000C),
+  L6474_CONFIG_EXT_16MHZ_OSCOUT_INVERT = ((uint16_t) 0x000D),
+  L6474_CONFIG_EXT_24MHZ_OSCOUT_INVERT = ((uint16_t) 0x000E),
+  L6474_CONFIG_EXT_32MHZ_OSCOUT_INVERT = ((uint16_t) 0x000F)
+} L6474_CONFIG_OSC_MGMT_t;
+/**
+  * @}
+  */
+
+/** @defgroup L6474_External_Torque_Regulation_Options_For_CONFIG_Register
+  * @{
+  */
+///External Torque regulation options for CONFIG register
+typedef enum {
+  L6474_CONFIG_EN_TQREG_TVAL_USED = ((uint16_t) 0x0000),
+  L6474_CONFIG_EN_TQREG_ADC_OUT = ((uint16_t) 0x0020)
+} L6474_CONFIG_EN_TQREG_t;
+/**
+  * @}
+  */
+
+/** @defgroup L6474_Over_Current_Shutdown_Options_For_CONFIG_Register
+  * @{
+  */
+///Over Current Shutdown options for CONFIG register
+typedef enum {
+  L6474_CONFIG_OC_SD_DISABLE = ((uint16_t) 0x0000),
+  L6474_CONFIG_OC_SD_ENABLE  = ((uint16_t) 0x0080)
+} L6474_CONFIG_OC_SD_t;
+/**
+  * @}
+  */
+
+/** @defgroup L6474_Power_Bridge_Output_Slew_Rate_Options
+  * @{
+  */
+/// POW_SR values for CONFIG register
+typedef enum {
+  L6474_CONFIG_SR_320V_us    =((uint16_t)0x0000),
+  L6474_CONFIG_SR_075V_us    =((uint16_t)0x0100),
+  L6474_CONFIG_SR_110V_us    =((uint16_t)0x0200),
+  L6474_CONFIG_SR_260V_us    =((uint16_t)0x0300)
+} L6474_CONFIG_POW_SR_t;
+/**
+  * @}
+  */
+
+/** @defgroup L6474_Off_Time_Options
+  * @{
+  */
+/// TOFF values for CONFIG register
+typedef enum {
+  L6474_CONFIG_TOFF_004us   = (((uint16_t) 0x01) << 10),
+  L6474_CONFIG_TOFF_008us   = (((uint16_t) 0x02) << 10),
+  L6474_CONFIG_TOFF_012us  = (((uint16_t) 0x03) << 10),
+  L6474_CONFIG_TOFF_016us  = (((uint16_t) 0x04) << 10),
+  L6474_CONFIG_TOFF_020us  = (((uint16_t) 0x05) << 10),
+  L6474_CONFIG_TOFF_024us  = (((uint16_t) 0x06) << 10),
+  L6474_CONFIG_TOFF_028us  = (((uint16_t) 0x07) << 10),
+  L6474_CONFIG_TOFF_032us  = (((uint16_t) 0x08) << 10),
+  L6474_CONFIG_TOFF_036us  = (((uint16_t) 0x09) << 10),
+  L6474_CONFIG_TOFF_040us  = (((uint16_t) 0x0A) << 10),
+  L6474_CONFIG_TOFF_044us  = (((uint16_t) 0x0B) << 10),
+  L6474_CONFIG_TOFF_048us  = (((uint16_t) 0x0C) << 10),
+  L6474_CONFIG_TOFF_052us  = (((uint16_t) 0x0D) << 10),
+  L6474_CONFIG_TOFF_056us  = (((uint16_t) 0x0E) << 10),
+  L6474_CONFIG_TOFF_060us  = (((uint16_t) 0x0F) << 10),
+  L6474_CONFIG_TOFF_064us  = (((uint16_t) 0x10) << 10),
+  L6474_CONFIG_TOFF_068us  = (((uint16_t) 0x11) << 10),
+  L6474_CONFIG_TOFF_072us  = (((uint16_t) 0x12) << 10),
+  L6474_CONFIG_TOFF_076us  = (((uint16_t) 0x13) << 10),
+  L6474_CONFIG_TOFF_080us  = (((uint16_t) 0x14) << 10),
+  L6474_CONFIG_TOFF_084us  = (((uint16_t) 0x15) << 10),
+  L6474_CONFIG_TOFF_088us  = (((uint16_t) 0x16) << 10),
+  L6474_CONFIG_TOFF_092us  = (((uint16_t) 0x17) << 10),
+  L6474_CONFIG_TOFF_096us  = (((uint16_t) 0x18) << 10),
+  L6474_CONFIG_TOFF_100us = (((uint16_t) 0x19) << 10),
+  L6474_CONFIG_TOFF_104us = (((uint16_t) 0x1A) << 10),
+  L6474_CONFIG_TOFF_108us = (((uint16_t) 0x1B) << 10),
+  L6474_CONFIG_TOFF_112us = (((uint16_t) 0x1C) << 10),
+  L6474_CONFIG_TOFF_116us = (((uint16_t) 0x1D) << 10),
+  L6474_CONFIG_TOFF_120us = (((uint16_t) 0x1E) << 10),
+  L6474_CONFIG_TOFF_124us = (((uint16_t) 0x1F) << 10)
+} L6474_CONFIG_TOFF_t;
+/**
+  * @}
+  */
+
+/** @defgroup L6474_STATUS_Register_Bit_Masks
+  * @{
+  */
+///STATUS Register Bit Masks
+typedef enum {
+  L6474_STATUS_HIZ         = (((uint16_t) 0x0001)),
+  L6474_STATUS_DIR         = (((uint16_t) 0x0010)),
+  L6474_STATUS_NOTPERF_CMD = (((uint16_t) 0x0080)),
+  L6474_STATUS_WRONG_CMD   = (((uint16_t) 0x0100)),
+  L6474_STATUS_UVLO        = (((uint16_t) 0x0200)),
+  L6474_STATUS_TH_WRN      = (((uint16_t) 0x0400)),
+  L6474_STATUS_TH_SD       = (((uint16_t) 0x0800)),
+  L6474_STATUS_OCD         = (((uint16_t) 0x1000))
+} L6474_STATUS_Masks_t;
+/**
+  * @}
+  */
+
+/** @defgroup L6474_Direction_Field_Of_STATUS_Register
+  * @{
+  */  
+///Diretion field of STATUS register
+typedef enum {
+  L6474_STATUS_DIR_FORWARD = (((uint16_t) 0x0001) << 4),
+  L6474_STATUS_DIR_REVERSE = (((uint16_t) 0x0000) << 4)
+} L6474_STATUS_DIR_t;
+/**
+  * @}
+  */
+
+/** @defgroup L6474_Internal_Register_Addresses
+  * @{
+  */
+/// Internal L6474 register addresses
+typedef enum {
+  L6474_ABS_POS        = ((uint8_t) 0x01),
+  L6474_EL_POS         = ((uint8_t) 0x02),
+  L6474_MARK           = ((uint8_t) 0x03),
+  L6474_RESERVED_REG01 = ((uint8_t) 0x04),
+  L6474_RESERVED_REG02 = ((uint8_t) 0x05),
+  L6474_RESERVED_REG03 = ((uint8_t) 0x06),
+  L6474_RESERVED_REG04 = ((uint8_t) 0x07),
+  L6474_RESERVED_REG05 = ((uint8_t) 0x08),
+  L6474_RESERVED_REG06 = ((uint8_t) 0x15),
+  L6474_TVAL           = ((uint8_t) 0x09),
+  L6474_RESERVED_REG07 = ((uint8_t) 0x0A),
+  L6474_RESERVED_REG08 = ((uint8_t) 0x0B),
+  L6474_RESERVED_REG09 = ((uint8_t) 0x0C),
+  L6474_RESERVED_REG10 = ((uint8_t) 0x0D),
+  L6474_T_FAST         = ((uint8_t) 0x0E),
+  L6474_TON_MIN        = ((uint8_t) 0x0F),
+  L6474_TOFF_MIN       = ((uint8_t) 0x10),
+  L6474_RESERVED_REG11 = ((uint8_t) 0x11),
+  L6474_ADC_OUT        = ((uint8_t) 0x12),
+  L6474_OCD_TH         = ((uint8_t) 0x13),
+  L6474_RESERVED_REG12 = ((uint8_t) 0x14),
+  L6474_STEP_MODE      = ((uint8_t) 0x16),
+  L6474_ALARM_EN       = ((uint8_t) 0x17),
+  L6474_CONFIG         = ((uint8_t) 0x18),
+  L6474_STATUS         = ((uint8_t) 0x19),
+  L6474_RESERVED_REG13 = ((uint8_t) 0x1A),
+  L6474_RESERVED_REG14 = ((uint8_t) 0x1B),
+  L6474_INEXISTENT_REG = ((uint8_t) 0x1F)
+} L6474_Registers_t;
+/**
+  * @}
+  */
+
+/** @defgroup L6474_Command_Set
+  * @{
+  */
+/// L6474 command set
+typedef enum {
+  L6474_NOP           = ((uint8_t) 0x00),
+  L6474_SET_PARAM     = ((uint8_t) 0x00),
+  L6474_GET_PARAM     = ((uint8_t) 0x20),
+  L6474_ENABLE        = ((uint8_t) 0xB8),
+  L6474_DISABLE       = ((uint8_t) 0xA8),
+  L6474_GET_STATUS    = ((uint8_t) 0xD0),
+  L6474_RESERVED_CMD1 = ((uint8_t) 0xEB),
+  L6474_RESERVED_CMD2 = ((uint8_t) 0xF8)
+} L6474_Commands_t;
+/**
+  * @}
+  */
+
+/** 
+  * @brief  L6474 driver data structure definition
+  */ 
+typedef struct
+{
+  /// Function pointer to flag interrupt call back
+  void (*flagInterruptCallback)(void);
+  /// Function pointer to error handler call back
+  void (*errorHandlerCallback)(uint16_t error);
+  uint8_t spiTxBursts[L6474_CMD_ARG_MAX_NB_BYTES]; //[MAX_NUMBER_OF_DEVICES];
+  uint8_t spiRxBursts[L6474_CMD_ARG_MAX_NB_BYTES]; //[MAX_NUMBER_OF_DEVICES];
+  bool spiPreemtionByIsr; // = FALSE;
+  bool isrFlag; // = FALSE;
+  /// L6474 Device Paramaters structure
+  deviceParams_t devicePrm; //[MAX_NUMBER_OF_DEVICES];
+  uint8_t numberOfDevices;
+  uint8_t deviceInstance;
+} L6474_DrvDataTypeDef;
+
+
+/* Functions -----------------------------------------------------------------*/
+
+/** @addtogroup BSP
+ * @{
+ */
+
+/** @addtogroup Components
+ * @{
+ */
+
+/** @addtogroup L6474
+ * @{
+ */
+
+/** @defgroup L6474_IO_Functions L6474_IO_Functions
+ * @{
+ */
+/* ACTION --------------------------------------------------------------------*
+ * Declare here extern I/O functions you need and implemented them in a glue  *
+ * logic file on the target environment, for example within the expansion     *
+ * board "*.c" file. E.g.:                                                    *
+ *   extern DrvStatusTypeDef COMPONENT_IO_Read (handle, buf, regadd, bytes);  *
+ *   extern DrvStatusTypeDef COMPONENT_IO_Write(handle, buf, regadd, bytes);  *
+ *----------------------------------------------------------------------------*/
+///Delay of the requested number of milliseconds
+extern void L6474_Delay(void *handle, uint32_t delay);     
+///Enable Irq
+extern void L6474_EnableIrq(void *handle);               
+///Disable Irq
+extern void L6474_DisableIrq(void *handle);              
+///Set PWM1 frequency and start it
+extern void L6474_Pwm1SetFreq(void *handle, uint16_t newFreq); 
+///Set PWM2 frequency and start it  
+extern void L6474_Pwm2SetFreq(void *handle, uint16_t newFreq); 
+///Set PWM3 frequency and start it
+extern void L6474_Pwm3SetFreq(void *handle, uint16_t newFreq); 
+///Init the PWM
+extern void L6474_PwmInit(void *handle);
+///Stop the PWM
+extern void L6474_PwmStop(void *handle);    
+///Reset the L6474 reset pin 
+extern void L6474_ReleaseReset(void *handle);           
+///Set the L6474 reset pin 
+extern void L6474_Reset(void *handle);                  
+///Set direction GPIO
+extern void L6474_SetDirectionGpio(void *handle, uint8_t gpioState); 
+///Write bytes to the L6474s via SPI
+extern uint8_t L6474_SpiWriteBytes(void *handle, uint8_t *pByteToTransmit, uint8_t *pReceivedByte);
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+#ifdef __cplusplus
+  }
+#endif
+
+#endif /* #ifndef __L6474_H */
+
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Components/l6474/l6474_class.cpp	Wed Oct 14 15:12:18 2015 +0000
@@ -0,0 +1,1348 @@
+/**
+  ******************************************************************************
+  * @file    l6474_class.cpp
+  * @author  IPC Rennes
+  * @version V1.5.0
+  * @date    November 12, 2014
+  * @brief   L6474 driver (fully integrated microstepping motor driver)
+  * @note    (C) COPYRIGHT 2014 STMicroelectronics
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
+  *
+  * Redistribution and use in source and binary forms, with or without modification,
+  * are permitted provided that the following conditions are met:
+  *   1. Redistributions of source code must retain the above copyright notice,
+  *      this list of conditions and the following disclaimer.
+  *   2. Redistributions in binary form must reproduce the above copyright notice,
+  *      this list of conditions and the following disclaimer in the documentation
+  *      and/or other materials provided with the distribution.
+  *   3. Neither the name of STMicroelectronics nor the names of its contributors
+  *      may be used to endorse or promote products derived from this software
+  *      without specific prior written permission.
+  *
+  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+  *
+  ******************************************************************************
+  */
+
+
+/* Generated with Stm32CubeTOO -----------------------------------------------*/
+
+
+/* Revision ------------------------------------------------------------------*/
+/*
+    Repository:       http://svn.x-nucleodev.codex.cro.st.com/svnroot/X-NucleoDev
+    Branch/Trunk/Tag: trunk
+    Based on:         X-CUBE-SPN1/trunk/Drivers/BSP/Components/l6474/l6474.c
+    Revision:         0
+*/
+
+
+/* Includes ------------------------------------------------------------------*/
+
+#include "l6474_class.h"
+#include "l6474.h"
+
+
+/* Private constants ---------------------------------------------------------*/
+
+/// Error while initialising the SPI
+#define L6474_ERROR_0   (0x8000)   
+/// Error: Bad SPI transaction
+#define L6474_ERROR_1   (0x8001)
+    
+/// Maximum number of steps
+#define MAX_STEPS         (0x7FFFFFFF)
+
+/// Maximum frequency of the PWMs in Hz
+#define L6474_MAX_PWM_FREQ   (10000)
+
+/// Minimum frequency of the PWMs in Hz
+#define L6474_MIN_PWM_FREQ   (2)
+
+
+/* Private variables  --------------------------------------------------------*/
+
+/* Number of devices. */
+uint8_t L6474::numberOfDevices = 0;
+
+
+/* Private function prototypes -----------------------------------------------*/
+
+/******************************************************//**
+ * @brief  Attaches a user callback to the error Handler.
+ * The call back will be then called each time the library 
+ * detects an error
+ * @param[in] callback Name of the callback to attach 
+ * to the error Hanlder
+ * @retval None
+ **********************************************************/
+void L6474::L6474_AttachErrorHandler(void (*callback)(uint16_t error))
+{
+  errorHandlerCallback = (void (*)(uint16_t error)) callback;
+}
+
+/******************************************************//**
+ * @brief  Attaches a user callback to the flag Interrupt
+ * The call back will be then called each time the status 
+ * flag pin will be pulled down due to the occurrence of 
+ * a programmed alarms ( OCD, thermal pre-warning or 
+ * shutdown, UVLO, wrong command, non-performable command)
+ * @param[in] callback Name of the callback to attach 
+ * to the Flag Interrupt
+ * @retval None
+ **********************************************************/
+void L6474::L6474_AttachFlagInterrupt(void (*callback)(void))
+{
+  flagInterruptCallback = (void (*)(void))callback;
+}
+
+/******************************************************//**
+ * @brief Starts the L6474 library
+ * @retval COMPONENT_OK in case of success
+ **********************************************************/
+DrvStatusTypeDef L6474::L6474_Init(MOTOR_InitTypeDef *L6474_Init)
+{
+  /* Initialise the PWMs used for the Step clocks ----------------------------*/
+  L6474_PwmInit();
+
+  /* Initialise the L6474s ------------------------------------------------*/
+  
+  /* Standby-reset deactivation */
+  L6474_ReleaseReset();
+  
+  /* Let a delay after reset */
+  L6474_Delay(1); 
+
+  /* Set all registers and context variables to the predefined values from l6474_target_config.h */
+  L6474_SetDeviceParamsToPredefinedValues();
+  
+  /* Disable L6474 powerstage */
+  L6474_CmdDisable();
+
+  /* Get Status to clear flags after start up */
+  L6474_CmdGetStatus();
+  
+  return COMPONENT_OK;
+}
+
+/******************************************************//**
+ * @brief Read id
+ * @param id pointer to the identifier to be read.
+ * @retval COMPONENT_OK in case of success
+ **********************************************************/
+DrvStatusTypeDef L6474::L6474_ReadID(uint8_t *id)
+{
+  *id = type;
+
+  return COMPONENT_OK;
+}
+
+/******************************************************//**
+ * @brief Returns the acceleration of the specified device
+ * @retval Acceleration in pps^2
+ **********************************************************/
+uint16_t L6474::L6474_GetAcceleration(void)
+{
+  return (devicePrm.acceleration);
+}            
+
+/******************************************************//**
+ * @brief Returns the current speed of the specified device
+ * @retval Speed in pps
+ **********************************************************/
+uint16_t L6474::L6474_GetCurrentSpeed(void)
+{
+  return devicePrm.speed;
+}
+
+/******************************************************//**
+ * @brief Returns the deceleration of the specified device
+ * @retval Deceleration in pps^2
+ **********************************************************/
+uint16_t L6474::L6474_GetDeceleration(void)
+{                                                  
+  return (devicePrm.deceleration);
+}          
+
+/******************************************************//**
+ * @brief Returns the device state
+ * @retval State (ACCELERATING, DECELERATING, STEADY or INACTIVE)
+ **********************************************************/
+motorState_t L6474::L6474_GetDeviceState(void)
+{
+  return devicePrm.motionState;
+}
+
+/******************************************************//**
+ * @brief Returns the FW version of the library
+ * @param None
+ * @retval L6474_FW_VERSION
+ **********************************************************/
+uint8_t L6474::L6474_GetFwVersion(void)
+{
+  return (L6474_FW_VERSION);
+}
+
+/******************************************************//**
+ * @brief  Returns the mark position  of the specified device
+ * @retval Mark register value converted in a 32b signed integer 
+ **********************************************************/
+int32_t L6474::L6474_GetMark(void)
+{
+  return L6474_ConvertPosition(L6474_CmdGetParam(L6474_MARK));
+}
+
+/******************************************************//**
+ * @brief  Returns the max speed of the specified device
+ * @retval maxSpeed in pps
+ **********************************************************/
+uint16_t L6474::L6474_GetMaxSpeed(void)
+{                                                  
+  return (devicePrm.maxSpeed);
+}
+
+/******************************************************//**
+ * @brief  Returns the min speed of the specified device
+ * @retval minSpeed in pps
+ **********************************************************/
+uint16_t L6474::L6474_GetMinSpeed(void)
+{                                                  
+  return (devicePrm.minSpeed);
+}                                                     
+
+/******************************************************//**
+ * @brief  Returns the ABS_POSITION of the specified device
+ * @retval ABS_POSITION register value converted in a 32b signed integer
+ **********************************************************/
+int32_t L6474::L6474_GetPosition(void)
+{
+  return L6474_ConvertPosition(L6474_CmdGetParam(L6474_ABS_POS));
+}
+
+/******************************************************//**
+ * @brief  Requests the motor to move to the home position (ABS_POSITION = 0)
+ * @retval None
+ **********************************************************/
+void L6474::L6474_GoHome(void)
+{
+  L6474_GoTo(0);
+} 
+  
+/******************************************************//**
+ * @brief  Requests the motor to move to the mark position 
+ * @retval None
+ **********************************************************/
+void L6474::L6474_GoMark(void)
+{
+    uint32_t mark;
+
+    mark = L6474_ConvertPosition(L6474_CmdGetParam(L6474_MARK));
+    L6474_GoTo(mark);  
+}
+
+/******************************************************//**
+ * @brief  Requests the motor to move to the specified position 
+ * @param[in] targetPosition absolute position in steps
+ * @retval None
+ **********************************************************/
+void L6474::L6474_GoTo(int32_t targetPosition)
+{
+  motorDir_t direction;
+  int32_t steps;
+  
+  /* Eventually deactivate motor */
+  if (devicePrm.motionState != INACTIVE) 
+  {
+    L6474_HardStop();
+  }
+
+  /* Get current position */
+  devicePrm.currentPosition = L6474_ConvertPosition(L6474_CmdGetParam(L6474_ABS_POS));
+  
+  /* Compute the number of steps to perform */
+  steps = targetPosition - devicePrm.currentPosition;
+  
+  if (steps >= 0) 
+  {
+    devicePrm.stepsToTake = steps;
+    direction = FORWARD;
+  } 
+  else 
+  {
+    devicePrm.stepsToTake = -steps;
+    direction = BACKWARD;
+  }
+  
+  if (steps != 0) 
+  {
+    devicePrm.commandExecuted = MOVE_CMD;
+        
+    /* Direction setup */
+    L6474_SetDirection(direction);
+
+    L6474_ComputeSpeedProfile(devicePrm.stepsToTake);
+    
+    /* Motor activation */
+    L6474_StartMovement();
+  }  
+}
+
+/******************************************************//**
+ * @brief  Immediatly stops the motor and disable the power bridge
+ * @retval None
+ **********************************************************/
+void L6474::L6474_HardStop(void) 
+{
+  /* Disable corresponding PWM */
+  L6474_PwmStop();
+
+  /* Disable power stage */
+  L6474_CmdDisable();
+
+  /* Set inactive state */
+  devicePrm.motionState = INACTIVE;
+  devicePrm.commandExecuted = NO_CMD;
+  devicePrm.stepsToTake = MAX_STEPS;  
+}
+
+/******************************************************//**
+ * @brief  Moves the motor of the specified number of steps
+ * @param[in] direction FORWARD or BACKWARD
+ * @param[in] stepCount Number of steps to perform
+ * @retval None
+ **********************************************************/
+void L6474::L6474_Move(motorDir_t direction, uint32_t stepCount)
+{
+  /* Eventually deactivate motor */
+  if (devicePrm.motionState != INACTIVE) 
+  {
+    L6474_HardStop();
+  }
+  
+  if (stepCount != 0) 
+  {
+    devicePrm.stepsToTake = stepCount;
+    
+    devicePrm.commandExecuted = MOVE_CMD;
+    
+    devicePrm.currentPosition = L6474_ConvertPosition(L6474_CmdGetParam(L6474_ABS_POS));
+    
+    /* Direction setup */
+    L6474_SetDirection(direction);
+
+    L6474_ComputeSpeedProfile(stepCount);
+    
+    /* Motor activation */
+    L6474_StartMovement();
+  }  
+}
+
+#if 0
+/******************************************************//**
+ * @brief Resets all L6474 devices
+ * @param None
+ * @retval None
+ **********************************************************/
+void L6474::L6474_ResetAllDevices(void)
+{
+  uint8_t loop;
+  
+  for (loop = 0; loop < numberOfDevices; loop++)
+  {
+    /* Stop movement and disable power stage*/
+    L6474_HardStop(loop);
+  }
+  L6474_Reset();
+  L6474_Delay(1); // Reset pin must be forced low for at least 10us
+  L6474_ReleaseReset();
+  L6474_Delay(1); 
+}
+#endif
+
+/******************************************************//**
+ * @brief  Runs the motor. It will accelerate from the min 
+ * speed up to the max speed by using the device acceleration.
+ * @param[in] direction FORWARD or BACKWARD
+ * @retval None
+ **********************************************************/
+void L6474::L6474_Run(motorDir_t direction)
+{
+  /* Eventually deactivate motor */
+  if (devicePrm.motionState != INACTIVE) 
+  {
+    L6474_HardStop();
+  }
+  
+  /* Direction setup */
+  L6474_SetDirection(direction);
+
+  devicePrm.commandExecuted = RUN_CMD;
+
+  /* Motor activation */
+  L6474_StartMovement(); 
+}
+
+/******************************************************//**
+ * @brief  Changes the acceleration of the specified device
+ * @param[in] newAcc New acceleration to apply in pps^2
+ * @retval true if the command is successfully executed, else false
+ * @note The command is not performed is the device is executing 
+ * a MOVE or GOTO command (but it can be used during a RUN command)
+ **********************************************************/
+bool L6474::L6474_SetAcceleration(uint16_t newAcc)
+{                                                  
+  bool cmdExecuted = FALSE;
+  if ((newAcc != 0)&&
+      ((devicePrm.motionState == INACTIVE)||
+       (devicePrm.commandExecuted == RUN_CMD)))
+  {
+    devicePrm.acceleration = newAcc;
+    cmdExecuted = TRUE;
+  }    
+  return cmdExecuted;
+}            
+
+/******************************************************//**
+ * @brief  Changes the deceleration of the specified device
+ * @param[in] newDec New deceleration to apply in pps^2
+ * @retval true if the command is successfully executed, else false
+ * @note The command is not performed is the device is executing 
+ * a MOVE or GOTO command (but it can be used during a RUN command)
+ **********************************************************/
+bool L6474::L6474_SetDeceleration(uint16_t newDec)
+{                                                  
+  bool cmdExecuted = FALSE;
+  if ((newDec != 0)&& 
+      ((devicePrm.motionState == INACTIVE)||
+       (devicePrm.commandExecuted == RUN_CMD)))
+  {
+    devicePrm.deceleration = newDec;
+    cmdExecuted = TRUE;
+  }      
+  return cmdExecuted;
+}        
+
+/******************************************************//**
+ * @brief  Set current position to be the Home position (ABS pos set to 0)
+ * @retval None
+ **********************************************************/
+void L6474::L6474_SetHome(void)
+{
+  L6474_CmdSetParam(L6474_ABS_POS, 0);
+}
+ 
+/******************************************************//**
+ * @brief  Sets current position to be the Mark position 
+ * @retval None
+ **********************************************************/
+void L6474::L6474_SetMark(void)
+{
+  uint32_t mark = L6474_CmdGetParam(L6474_ABS_POS);
+  L6474_CmdSetParam(L6474_MARK, mark);
+}
+
+/******************************************************//**
+ * @brief  Changes the max speed of the specified device
+ * @param[in] newMaxSpeed New max speed  to apply in pps
+ * @retval true if the command is successfully executed, else false
+ * @note The command is not performed is the device is executing 
+ * a MOVE or GOTO command (but it can be used during a RUN command).
+ **********************************************************/
+bool L6474::L6474_SetMaxSpeed(uint16_t newMaxSpeed)
+{                                                  
+  bool cmdExecuted = FALSE;
+  if ((newMaxSpeed >= L6474_MIN_PWM_FREQ)&&
+      (newMaxSpeed <= L6474_MAX_PWM_FREQ) &&
+      (devicePrm.minSpeed <= newMaxSpeed) &&
+      ((devicePrm.motionState == INACTIVE)||
+       (devicePrm.commandExecuted == RUN_CMD)))
+  {
+    devicePrm.maxSpeed = newMaxSpeed;
+    cmdExecuted = TRUE;
+  }
+  return cmdExecuted;
+}                                                     
+
+/******************************************************//**
+ * @brief  Changes the min speed of the specified device
+ * @param[in] newMinSpeed New min speed  to apply in pps
+ * @retval true if the command is successfully executed, else false
+ * @note The command is not performed is the device is executing 
+ * a MOVE or GOTO command (but it can be used during a RUN command).
+ **********************************************************/
+bool L6474::L6474_SetMinSpeed(uint16_t newMinSpeed)
+{                                                  
+  bool cmdExecuted = FALSE;
+  if ((newMinSpeed >= L6474_MIN_PWM_FREQ)&&
+      (newMinSpeed <= L6474_MAX_PWM_FREQ) &&
+      (newMinSpeed <= devicePrm.maxSpeed) && 
+      ((devicePrm.motionState == INACTIVE)||
+       (devicePrm.commandExecuted == RUN_CMD)))
+  {
+    devicePrm.minSpeed = newMinSpeed;
+    cmdExecuted = TRUE;
+  }  
+  return cmdExecuted;
+}                 
+
+/******************************************************//**
+ * @brief  Stops the motor by using the device deceleration
+ * @retval true if the command is successfully executed, else false
+ * @note The command is not performed is the device is in INACTIVE state.
+ **********************************************************/
+bool L6474::L6474_SoftStop(void)
+{   
+  bool cmdExecuted = FALSE;
+  if (devicePrm.motionState != INACTIVE)
+  {
+    devicePrm.commandExecuted = SOFT_STOP_CMD;
+    cmdExecuted = TRUE;
+  }
+  return (cmdExecuted);
+}
+
+/******************************************************//**
+ * @brief  Issue the Disable command to the L6474 of the specified device
+ * @retval None
+ **********************************************************/
+void L6474::L6474_CmdDisable(void)
+{
+  L6474_SendCommand(L6474_DISABLE);
+}
+
+/******************************************************//**
+ * @brief  Issues the Enable command to the L6474 of the specified device
+ * @retval None
+ **********************************************************/
+void L6474::L6474_CmdEnable(void)
+{
+  L6474_SendCommand(L6474_ENABLE);
+}
+
+/******************************************************//**
+ * @brief  Issues the GetParam command to the L6474 of the specified device
+ * @param[in] param Register adress (L6474_ABS_POS, L6474_MARK,...)
+ * @retval Register value
+ **********************************************************/
+uint32_t L6474::L6474_CmdGetParam(uint32_t param)
+{
+  uint32_t i;
+  uint32_t spiRxData;
+  uint8_t maxArgumentNbBytes = 0;
+  bool itDisable = FALSE;  
+  
+  do
+  {
+    spiPreemtionByIsr = FALSE;
+    if (itDisable)
+    {
+      /* re-enable L6474_EnableIrq if disable in previous iteration */
+      L6474_EnableIrq();
+      itDisable = FALSE;
+    }
+  
+    spiTxBursts[0] = L6474_NOP;
+    spiTxBursts[1] = L6474_NOP;
+    spiTxBursts[2] = L6474_NOP;
+    spiTxBursts[3] = L6474_NOP;
+    spiRxBursts[1] = 0;
+    spiRxBursts[2] = 0;
+    spiRxBursts[3] = 0;    
+
+    switch (param)
+    {
+      case L6474_ABS_POS: ;
+      case L6474_MARK:
+        spiTxBursts[0] = ((uint8_t)L6474_GET_PARAM )| (param);
+        maxArgumentNbBytes = 3;
+        break;
+      case L6474_EL_POS: ;
+      case L6474_CONFIG: ;
+      case L6474_STATUS:
+        spiTxBursts[1] = ((uint8_t)L6474_GET_PARAM )| (param);
+        maxArgumentNbBytes = 2;
+        break;
+      default:
+        spiTxBursts[2] = ((uint8_t)L6474_GET_PARAM )| (param);
+        maxArgumentNbBytes = 1;
+    }
+    
+    /* Disable interruption before checking */
+    /* pre-emption by ISR and SPI transfers*/
+    L6474_DisableIrq();
+    itDisable = TRUE;
+  } while (spiPreemtionByIsr); // check pre-emption by ISR
+    
+  for (i = L6474_CMD_ARG_MAX_NB_BYTES-1-maxArgumentNbBytes;
+       i < L6474_CMD_ARG_MAX_NB_BYTES;
+       i++)
+  {
+     L6474_WriteBytes(&spiTxBursts[i], &spiRxBursts[i]);
+  }
+  
+  spiRxData = ((uint32_t)spiRxBursts[1] << 16) |
+              (spiRxBursts[2] << 8) |
+              (spiRxBursts[3]);
+  
+  /* re-enable L6474_EnableIrq after SPI transfers*/
+  L6474_EnableIrq();
+    
+  return (spiRxData);
+}
+
+/******************************************************//**
+ * @brief  Issues the GetStatus command to the L6474 of the specified device
+ * @retval Status Register value
+ * @note Once the GetStatus command is performed, the flags of the status register
+ * are reset. This is not the case when the status register is read with the
+ * GetParam command (via the functions L6474ReadStatusRegister or L6474CmdGetParam).
+ **********************************************************/
+uint16_t L6474::L6474_CmdGetStatus(void)
+{
+  uint32_t i;
+  uint16_t status;
+  bool itDisable = FALSE;  
+  
+  do
+  {
+    spiPreemtionByIsr = FALSE;
+    if (itDisable)
+    {
+      /* re-enable L6474_EnableIrq if disable in previous iteration */
+      L6474_EnableIrq();
+      itDisable = FALSE;
+    }
+
+    spiTxBursts[0] = L6474_NOP;
+    spiTxBursts[1] = L6474_NOP;
+    spiTxBursts[2] = L6474_NOP;
+    spiRxBursts[1] = 0;
+    spiRxBursts[2] = 0;
+    spiTxBursts[0] = L6474_GET_STATUS;
+
+    /* Disable interruption before checking */
+    /* pre-emption by ISR and SPI transfers*/
+    L6474_DisableIrq();
+    itDisable = TRUE;
+  } while (spiPreemtionByIsr); // check pre-emption by ISR
+
+  for (i = 0; i < L6474_CMD_ARG_NB_BYTES_GET_STATUS + L6474_RSP_NB_BYTES_GET_STATUS; i++)
+  {
+     L6474_WriteBytes(&spiTxBursts[i], &spiRxBursts[i]);
+  }
+  status = (spiRxBursts[1] << 8) | (spiRxBursts[2]);
+  
+  /* re-enable L6474_EnableIrq after SPI transfers*/
+  L6474_EnableIrq();
+  
+  return (status);
+}
+
+/******************************************************//**
+ * @brief  Issues the Nop command to the L6474 of the specified device
+ * @retval None
+ **********************************************************/
+void L6474::L6474_CmdNop(void)
+{
+  L6474_SendCommand(L6474_NOP);
+}
+
+/******************************************************//**
+ * @brief  Issues the SetParam command to the L6474 of the specified device
+ * @param[in] param Register adress (L6474_ABS_POS, L6474_MARK,...)
+ * @param[in] value Value to set in the register
+ * @retval None
+ **********************************************************/
+void L6474::L6474_CmdSetParam(uint32_t param, uint32_t value)
+{
+  uint32_t i;
+  uint8_t maxArgumentNbBytes = 0;
+  bool itDisable = FALSE;  
+  do
+  {
+    spiPreemtionByIsr = FALSE;
+    if (itDisable)
+    {
+      /* re-enable L6474_EnableIrq if disable in previous iteration */
+      L6474_EnableIrq();
+      itDisable = FALSE;
+    }
+
+    spiTxBursts[0] = L6474_NOP;
+    spiTxBursts[1] = L6474_NOP;
+    spiTxBursts[2] = L6474_NOP;
+    spiTxBursts[3] = L6474_NOP;
+
+    switch (param)
+    {
+      case L6474_ABS_POS: ;
+      case L6474_MARK:
+          spiTxBursts[0] = param;
+          spiTxBursts[1] = (uint8_t)(value >> 16);
+          spiTxBursts[2] = (uint8_t)(value >> 8);
+          maxArgumentNbBytes = 3;
+          break;
+      case L6474_EL_POS: ;
+      case L6474_CONFIG:
+          spiTxBursts[1] = param;
+          spiTxBursts[2] = (uint8_t)(value >> 8);
+          maxArgumentNbBytes = 2;
+          break;
+      default:
+          spiTxBursts[2] = param;
+          maxArgumentNbBytes = 1;
+          break;
+    }
+    spiTxBursts[3] = (uint8_t)(value);
+    
+    /* Disable interruption before checking */
+    /* pre-emption by ISR and SPI transfers*/
+    L6474_DisableIrq();
+    itDisable = TRUE;
+  } while (spiPreemtionByIsr); // check pre-emption by ISR
+ 
+  /* SPI transfer */
+  for (i = L6474_CMD_ARG_MAX_NB_BYTES-1-maxArgumentNbBytes;
+       i < L6474_CMD_ARG_MAX_NB_BYTES;
+       i++)
+  {
+     L6474_WriteBytes(&spiTxBursts[i],&spiRxBursts[i]);
+  }
+  /* re-enable L6474_EnableIrq after SPI transfers*/
+  L6474_EnableIrq();
+}
+
+/******************************************************//**
+ * @brief  Reads the Status Register value
+ * @retval Status register valued
+ * @note The status register flags are not cleared 
+ * at the difference with L6474CmdGetStatus()
+ **********************************************************/
+uint16_t L6474::L6474_ReadStatusRegister(void)
+{
+  return (L6474_CmdGetParam(L6474_STATUS));
+}
+
+/******************************************************//**
+ * @brief  Set the stepping mode 
+ * @param[in] stepMod from full step to 1/16 microstep as specified in enum motorStepMode_t
+ * @retval None
+ **********************************************************/
+void L6474::L6474_SelectStepMode(motorStepMode_t stepMod)
+{
+  uint8_t stepModeRegister;
+  L6474_STEP_SEL_t l6474StepMod;
+  
+  switch (stepMod)
+  {
+    case STEP_MODE_FULL:
+      l6474StepMod = L6474_STEP_SEL_1;
+      break;
+    case STEP_MODE_HALF:
+      l6474StepMod = L6474_STEP_SEL_1_2;
+      break;    
+    case STEP_MODE_1_4:
+      l6474StepMod = L6474_STEP_SEL_1_4;
+      break;        
+    case STEP_MODE_1_8:
+      l6474StepMod = L6474_STEP_SEL_1_8;
+      break;       
+    case STEP_MODE_1_16:
+    default:
+      l6474StepMod = L6474_STEP_SEL_1_16;
+      break;       
+  }
+
+  /* Eventually deactivate motor */
+  if (devicePrm.motionState != INACTIVE) 
+  {
+    L6474_HardStop();
+  }
+  
+  /* Read Step mode register and clear STEP_SEL field */
+  stepModeRegister = (uint8_t)(0xF8 & L6474_CmdGetParam(L6474_STEP_MODE)) ;
+  
+  /* Apply new step mode */
+  L6474_CmdSetParam(L6474_STEP_MODE, stepModeRegister | (uint8_t)l6474StepMod);
+
+  /* Reset abs pos register */
+  L6474_SetHome();
+}
+
+/******************************************************//**
+ * @brief  Specifies the direction 
+ * @param[in] dir FORWARD or BACKWARD
+ * @note The direction change is only applied if the device 
+ * is in INACTIVE state
+ * @retval None
+ **********************************************************/
+void L6474::L6474_SetDirection(motorDir_t dir)
+{
+  if (devicePrm.motionState == INACTIVE)
+  {
+    devicePrm.direction = dir;
+    L6474_SetDirectionGpio(dir);
+  }
+}
+
+/******************************************************//**
+ * @brief  Updates the current speed of the device
+ * @param[in] newSpeed in pps
+ * @retval None
+ **********************************************************/
+void L6474::L6474_ApplySpeed(uint16_t newSpeed)
+{
+  if (newSpeed < L6474_MIN_PWM_FREQ)
+  {
+    newSpeed = L6474_MIN_PWM_FREQ;  
+  }
+  if (newSpeed > L6474_MAX_PWM_FREQ)
+  {
+    newSpeed = L6474_MAX_PWM_FREQ;
+  }
+  
+  devicePrm.speed = newSpeed;
+
+  L6474_PwmSetFreq(newSpeed);
+}
+
+/******************************************************//**
+ * @brief  Computes the speed profile according to the number of steps to move
+ * @param[in] nbSteps number of steps to perform
+ * @retval None
+ * @note Using the acceleration and deceleration of the device,
+ * this function determines the duration in steps of the acceleration,
+ * steady and deceleration phases.
+ * If the total number of steps to perform is big enough, a trapezoidal move
+ * is performed (i.e. there is a steady phase where the motor runs at the maximum
+ * speed.
+ * Else, a triangular move is performed (no steady phase: the maximum speed is never
+ * reached.
+ **********************************************************/
+void L6474::L6474_ComputeSpeedProfile(uint32_t nbSteps)
+{
+  uint32_t reqAccSteps; 
+  uint32_t reqDecSteps;
+   
+  /* compute the number of steps to get the targeted speed */
+  uint16_t minSpeed = devicePrm.minSpeed;
+  reqAccSteps = (devicePrm.maxSpeed - minSpeed);
+  reqAccSteps *= (devicePrm.maxSpeed + minSpeed);
+  reqDecSteps = reqAccSteps;
+  reqAccSteps /= (uint32_t)devicePrm.acceleration;
+  reqAccSteps /= 2;
+
+  /* compute the number of steps to stop */
+  reqDecSteps /= (uint32_t)devicePrm.deceleration;
+  reqDecSteps /= 2;
+
+  if(( reqAccSteps + reqDecSteps ) > nbSteps)
+  { 
+    /* Triangular move  */
+    /* reqDecSteps = (Pos * Dec) /(Dec+Acc) */
+    uint32_t dec = devicePrm.deceleration;
+    uint32_t acc = devicePrm.acceleration;
+    
+    reqDecSteps =  ((uint32_t) dec * nbSteps) / (acc + dec);
+    if (reqDecSteps > 1)
+    {
+      reqAccSteps = reqDecSteps - 1;
+      if(reqAccSteps == 0)
+      {
+        reqAccSteps = 1;
+      }      
+    }
+    else
+    {
+      reqAccSteps = 0;
+    }
+    devicePrm.endAccPos = reqAccSteps;
+    devicePrm.startDecPos = reqDecSteps;
+  }
+  else
+  {  
+    /* Trapezoidal move */
+    /* accelerating phase to endAccPos */
+    /* steady phase from  endAccPos to startDecPos */
+    /* decelerating from startDecPos to stepsToTake*/
+    devicePrm.endAccPos = reqAccSteps;
+    devicePrm.startDecPos = nbSteps - reqDecSteps - 1;
+  }
+}
+
+/******************************************************//**
+ * @brief  Converts the ABS_POSITION register value to a 32b signed integer
+ * @param[in] abs_position_reg value of the ABS_POSITION register
+ * @retval operation_result 32b signed integer corresponding to the absolute position 
+ **********************************************************/
+int32_t L6474::L6474_ConvertPosition(uint32_t abs_position_reg)
+{
+  int32_t operation_result;
+
+  if (abs_position_reg & L6474_ABS_POS_SIGN_BIT_MASK) 
+  {
+    /* Negative register value */
+    abs_position_reg = ~abs_position_reg;
+    abs_position_reg += 1;
+
+    operation_result = (int32_t) (abs_position_reg & L6474_ABS_POS_VALUE_MASK);
+    operation_result = -operation_result;
+  } 
+  else 
+  {
+    operation_result = (int32_t) abs_position_reg;
+  }
+  return operation_result;
+}
+
+/******************************************************//**
+ * @brief Error handler which calls the user callback (if defined)
+ * @param[in] error Number of the error
+ * @retval None
+ **********************************************************/
+void L6474::L6474_ErrorHandler(uint16_t error)
+{
+  if (errorHandlerCallback != 0)
+  {
+    (void) errorHandlerCallback(error);
+  }
+  else   
+  {
+    while(1)
+    {
+      /* Infinite loop */
+    }
+  }
+}
+
+/******************************************************//**
+ * @brief  Handlers of the flag interrupt which calls the user callback (if defined)
+ * @param None
+ * @retval None
+ **********************************************************/
+void L6474::L6474_FlagInterruptHandler(void)
+{
+  if (flagInterruptCallback != 0)
+  {
+    /* Set isr flag */
+    isrFlag = TRUE;
+    
+    flagInterruptCallback();
+    
+    /* Reset isr flag */
+    isrFlag = FALSE;   
+  }
+}
+
+/******************************************************//**
+ * @brief  Sends a command without arguments to the L6474 via the SPI
+ * @param[in] param Command to send 
+ * @retval None
+ **********************************************************/
+void L6474::L6474_SendCommand(uint8_t param)
+{
+  bool itDisable = FALSE;  
+  
+  do
+  {
+    spiPreemtionByIsr = FALSE;
+    if (itDisable)
+    {
+      /* re-enable L6474_EnableIrq if disable in previous iteration */
+      L6474_EnableIrq();
+      itDisable = FALSE;
+    }
+  
+    spiTxBursts[3] = L6474_NOP;     
+    spiTxBursts[3] = param;
+    
+    /* Disable interruption before checking */
+    /* pre-emption by ISR and SPI transfers*/
+    L6474_DisableIrq();
+    itDisable = TRUE;
+  } while (spiPreemtionByIsr); // check pre-emption by ISR
+
+  L6474_WriteBytes(&spiTxBursts[3], &spiRxBursts[3]); 
+  
+  /* re-enable L6474_EnableIrq after SPI transfers*/
+  L6474_EnableIrq();
+}
+
+/******************************************************//**
+ * @brief  Sets the registers of the L6474 to their predefined values 
+ * from l6474_target_config.h
+ * @retval None
+ **********************************************************/
+void L6474::L6474_SetRegisterToPredefinedValues(void)
+{
+  L6474_CmdSetParam(
+                    L6474_ABS_POS,
+                    0);
+  L6474_CmdSetParam(
+                    L6474_EL_POS,
+                    0);
+  L6474_CmdSetParam(
+                    L6474_MARK,
+                    0);
+  switch (deviceInstance)
+  {
+    case 0:
+      L6474_CmdSetParam(
+                        L6474_TVAL,
+                        L6474_Tval_Current_to_Par(L6474_CONF_PARAM_TVAL_DEVICE_0));
+      L6474_CmdSetParam(
+                        L6474_T_FAST,
+                        (uint8_t)L6474_CONF_PARAM_TOFF_FAST_DEVICE_0 |
+                        (uint8_t)L6474_CONF_PARAM_FAST_STEP_DEVICE_0);
+      L6474_CmdSetParam(
+                        L6474_TON_MIN,
+                        L6474_Tmin_Time_to_Par(L6474_CONF_PARAM_TON_MIN_DEVICE_0)
+                        );
+      L6474_CmdSetParam(
+                        L6474_TOFF_MIN,
+                        L6474_Tmin_Time_to_Par(L6474_CONF_PARAM_TOFF_MIN_DEVICE_0));
+      L6474_CmdSetParam(
+                        L6474_OCD_TH,
+                        L6474_CONF_PARAM_OCD_TH_DEVICE_0);
+      L6474_CmdSetParam(
+                        L6474_STEP_MODE,
+                        (uint8_t)L6474_CONF_PARAM_STEP_SEL_DEVICE_0 |
+                        (uint8_t)L6474_CONF_PARAM_SYNC_SEL_DEVICE_0);
+      L6474_CmdSetParam(
+                        L6474_ALARM_EN,
+                        L6474_CONF_PARAM_ALARM_EN_DEVICE_0);
+      L6474_CmdSetParam(
+                        L6474_CONFIG,
+                        (uint16_t)L6474_CONF_PARAM_CLOCK_SETTING_DEVICE_0 |
+                        (uint16_t)L6474_CONF_PARAM_TQ_REG_DEVICE_0 |
+                        (uint16_t)L6474_CONF_PARAM_OC_SD_DEVICE_0 |
+                        (uint16_t)L6474_CONF_PARAM_SR_DEVICE_0 |
+                        (uint16_t)L6474_CONF_PARAM_TOFF_DEVICE_0);
+      break;
+    case 1:
+      L6474_CmdSetParam(
+                        L6474_TVAL,
+                        L6474_Tval_Current_to_Par(L6474_CONF_PARAM_TVAL_DEVICE_1));
+      L6474_CmdSetParam(
+                        L6474_T_FAST,
+                        (uint8_t)L6474_CONF_PARAM_TOFF_FAST_DEVICE_1 |
+                        (uint8_t)L6474_CONF_PARAM_FAST_STEP_DEVICE_1);
+      L6474_CmdSetParam(
+                        L6474_TON_MIN,
+                        L6474_Tmin_Time_to_Par(L6474_CONF_PARAM_TON_MIN_DEVICE_1));
+      L6474_CmdSetParam(
+                        L6474_TOFF_MIN,
+                        L6474_Tmin_Time_to_Par(L6474_CONF_PARAM_TOFF_MIN_DEVICE_1));
+      L6474_CmdSetParam(
+                        L6474_OCD_TH,
+                        L6474_CONF_PARAM_OCD_TH_DEVICE_1);
+      L6474_CmdSetParam(
+                        L6474_STEP_MODE,
+                        (uint8_t)L6474_CONF_PARAM_STEP_SEL_DEVICE_1 |
+                        (uint8_t)L6474_CONF_PARAM_SYNC_SEL_DEVICE_1);
+      L6474_CmdSetParam(
+                        L6474_ALARM_EN,
+                        L6474_CONF_PARAM_ALARM_EN_DEVICE_1);
+      L6474_CmdSetParam(
+                        L6474_CONFIG,
+                        (uint16_t)L6474_CONF_PARAM_CLOCK_SETTING_DEVICE_1 |
+                        (uint16_t)L6474_CONF_PARAM_TQ_REG_DEVICE_1 |
+                        (uint16_t)L6474_CONF_PARAM_OC_SD_DEVICE_1 |
+                        (uint16_t)L6474_CONF_PARAM_SR_DEVICE_1 |
+                        (uint16_t)L6474_CONF_PARAM_TOFF_DEVICE_1);
+      break;
+    case 2:
+      L6474_CmdSetParam(
+                        L6474_TVAL,
+                        L6474_Tval_Current_to_Par(L6474_CONF_PARAM_TVAL_DEVICE_2));
+      L6474_CmdSetParam(
+                        L6474_T_FAST,
+                        (uint8_t)L6474_CONF_PARAM_TOFF_FAST_DEVICE_2 |
+                        (uint8_t)L6474_CONF_PARAM_FAST_STEP_DEVICE_2);
+      L6474_CmdSetParam(
+                        L6474_TON_MIN,
+                        L6474_Tmin_Time_to_Par(L6474_CONF_PARAM_TON_MIN_DEVICE_2));
+      L6474_CmdSetParam(
+                        L6474_TOFF_MIN,
+                        L6474_Tmin_Time_to_Par(L6474_CONF_PARAM_TOFF_MIN_DEVICE_2));
+      L6474_CmdSetParam(
+                        L6474_OCD_TH,
+                        L6474_CONF_PARAM_OCD_TH_DEVICE_2);
+      L6474_CmdSetParam(
+                        L6474_STEP_MODE,
+                        (uint8_t)L6474_CONF_PARAM_STEP_SEL_DEVICE_2 |
+                        (uint8_t)L6474_CONF_PARAM_SYNC_SEL_DEVICE_2);
+      L6474_CmdSetParam(
+                        L6474_ALARM_EN,
+                        L6474_CONF_PARAM_ALARM_EN_DEVICE_2);
+      L6474_CmdSetParam(
+                        L6474_CONFIG,
+                        (uint16_t)L6474_CONF_PARAM_CLOCK_SETTING_DEVICE_2 |
+                        (uint16_t)L6474_CONF_PARAM_TQ_REG_DEVICE_2 |
+                        (uint16_t)L6474_CONF_PARAM_OC_SD_DEVICE_2 |
+                        (uint16_t)L6474_CONF_PARAM_SR_DEVICE_2 |
+                        (uint16_t)L6474_CONF_PARAM_TOFF_DEVICE_2);
+      break;
+    default: ;
+  }
+}
+
+/******************************************************//**
+ * @brief  Sets the parameters of the device to predefined values
+ * from l6474_target_config.h
+ * @param None
+ * @retval None
+ **********************************************************/
+void L6474::L6474_SetDeviceParamsToPredefinedValues(void)
+{
+  switch (deviceInstance)
+  {
+    case 0:
+      devicePrm.acceleration = L6474_CONF_PARAM_ACC_DEVICE_0;
+      devicePrm.deceleration = L6474_CONF_PARAM_DEC_DEVICE_0;
+      devicePrm.maxSpeed = L6474_CONF_PARAM_MAX_SPEED_DEVICE_0;
+      devicePrm.minSpeed = L6474_CONF_PARAM_MIN_SPEED_DEVICE_0;
+      break;
+
+    case 1:
+      devicePrm.acceleration = L6474_CONF_PARAM_ACC_DEVICE_1;
+      devicePrm.deceleration = L6474_CONF_PARAM_DEC_DEVICE_1;
+      devicePrm.maxSpeed = L6474_CONF_PARAM_MAX_SPEED_DEVICE_1;
+      devicePrm.minSpeed = L6474_CONF_PARAM_MIN_SPEED_DEVICE_1;
+      break;
+
+    case 2:
+      devicePrm.acceleration = L6474_CONF_PARAM_ACC_DEVICE_2;
+      devicePrm.deceleration = L6474_CONF_PARAM_DEC_DEVICE_2;
+      devicePrm.maxSpeed = L6474_CONF_PARAM_MAX_SPEED_DEVICE_2;
+      devicePrm.minSpeed = L6474_CONF_PARAM_MIN_SPEED_DEVICE_2;
+      break;
+  }
+
+  devicePrm.accu = 0;
+  devicePrm.currentPosition = 0;
+  devicePrm.endAccPos = 0;
+  devicePrm.relativePos = 0;
+  devicePrm.startDecPos = 0;
+  devicePrm.stepsToTake = 0;
+  devicePrm.speed = 0;
+  devicePrm.commandExecuted = NO_CMD;
+  devicePrm.direction = FORWARD;
+  devicePrm.motionState = INACTIVE;
+  
+  L6474_SetRegisterToPredefinedValues();
+}
+
+/******************************************************//**
+ * @brief Initialises the bridge parameters to start the movement
+ * and enable the power bridge
+ * @retval None
+ **********************************************************/
+void L6474::L6474_StartMovement(void)  
+{
+  /* Enable L6474 powerstage */
+  L6474_CmdEnable();
+  if (devicePrm.endAccPos != 0)
+  {
+    devicePrm.motionState = ACCELERATING;
+  }
+  else
+  {
+    devicePrm.motionState = DECELERATING;    
+  }
+  devicePrm.accu = 0;
+  devicePrm.relativePos = 0;
+  L6474_ApplySpeed(devicePrm.minSpeed);
+}
+
+/******************************************************//**
+ * @brief  Handles the device state machine at each ste
+ * @retval None
+ * @note Must only be called by the timer ISR
+ **********************************************************/
+void L6474::L6474_StepClockHandler(void)
+{
+  /* Set isr flag */
+  isrFlag = TRUE;
+  
+  /* Incrementation of the relative position */
+  devicePrm.relativePos++;
+
+  switch (devicePrm.motionState) 
+  {
+    case ACCELERATING: 
+    {
+        uint32_t relPos = devicePrm.relativePos;
+        uint32_t endAccPos = devicePrm.endAccPos;
+        uint16_t speed = devicePrm.speed;
+        uint32_t acc = ((uint32_t)devicePrm.acceleration << 16);
+        
+        if ((devicePrm.commandExecuted == SOFT_STOP_CMD)||
+            ((devicePrm.commandExecuted != RUN_CMD)&&  
+             (relPos == devicePrm.startDecPos)))
+        {
+          devicePrm.motionState = DECELERATING;
+          devicePrm.accu = 0;
+        }
+        else if ((speed >= devicePrm.maxSpeed)||
+                 ((devicePrm.commandExecuted != RUN_CMD)&&
+                  (relPos == endAccPos)))
+        {
+          devicePrm.motionState = STEADY;
+        }
+        else
+        {
+          bool speedUpdated = FALSE;
+          /* Go on accelerating */
+          if (speed == 0) speed =1;
+          devicePrm.accu += acc / speed;
+          while (devicePrm.accu >= (0X10000L))
+          {
+            devicePrm.accu -= (0X10000L);
+            speed +=1;
+            speedUpdated = TRUE;
+          }
+          
+          if (speedUpdated)
+          {
+            if (speed > devicePrm.maxSpeed)
+            {
+              speed = devicePrm.maxSpeed;
+            }    
+            devicePrm.speed = speed;
+            L6474_ApplySpeed(devicePrm.speed);
+          }
+        }
+        break;
+    }
+    case STEADY: 
+    {
+      uint16_t maxSpeed = devicePrm.maxSpeed;
+      uint32_t relativePos = devicePrm.relativePos;
+      if  ((devicePrm.commandExecuted == SOFT_STOP_CMD)||
+           ((devicePrm.commandExecuted != RUN_CMD)&&
+            (relativePos >= (devicePrm.startDecPos))) ||
+           ((devicePrm.commandExecuted == RUN_CMD)&&
+            (devicePrm.speed > maxSpeed)))
+      {
+        devicePrm.motionState = DECELERATING;
+        devicePrm.accu = 0;
+      }
+      else if ((devicePrm.commandExecuted == RUN_CMD)&&
+               (devicePrm.speed < maxSpeed))
+      {
+        devicePrm.motionState = ACCELERATING;
+        devicePrm.accu = 0;
+      }
+      break;
+    }
+    case DECELERATING: 
+    {
+      uint32_t relativePos = devicePrm.relativePos;
+      uint16_t speed = devicePrm.speed;
+      uint32_t deceleration = ((uint32_t)devicePrm.deceleration << 16);
+      if (((devicePrm.commandExecuted == SOFT_STOP_CMD)&&(speed <=  devicePrm.minSpeed))||
+          ((devicePrm.commandExecuted != RUN_CMD)&&
+           (relativePos >= devicePrm.stepsToTake)))
+      {
+        /* Motion process complete */
+        L6474_HardStop();
+      }
+      else if ((devicePrm.commandExecuted == RUN_CMD)&&
+               (speed <= devicePrm.maxSpeed))
+      {
+        devicePrm.motionState = STEADY;
+      }
+      else
+      {
+        /* Go on decelerating */
+        if (speed > devicePrm.minSpeed)
+        {
+          bool speedUpdated = FALSE;
+          if (speed == 0) speed =1;
+          devicePrm.accu += deceleration / speed;
+          while (devicePrm.accu >= (0X10000L))
+          {
+            devicePrm.accu -= (0X10000L);
+            if (speed > 1)
+            {  
+              speed -=1;
+            }
+            speedUpdated = TRUE;
+          }
+        
+          if (speedUpdated)
+          {
+            if (speed < devicePrm.minSpeed)
+            {
+              speed = devicePrm.minSpeed;
+            }  
+            devicePrm.speed = speed;
+            L6474_ApplySpeed(devicePrm.speed);
+          }
+        }
+      }
+      break;
+    }
+    default: 
+    {
+      break;
+    }
+  }  
+  /* Set isr flag */
+  isrFlag = FALSE;
+}
+
+/******************************************************//**
+ * @brief Converts mA in compatible values for TVAL register 
+ * @param[in] Tval
+ * @retval TVAL values
+ **********************************************************/
+uint8_t L6474::L6474_Tval_Current_to_Par(double Tval)
+{
+  return ((uint8_t)(((Tval - 31.25)/31.25)+0.5));
+}
+
+/******************************************************//**
+ * @brief Convert time in us in compatible values 
+ * for TON_MIN register
+ * @param[in] Tmin
+ * @retval TON_MIN values
+ **********************************************************/
+uint8_t L6474::L6474_Tmin_Time_to_Par(double Tmin)
+{
+  return ((uint8_t)(((Tmin - 0.5)*2)+0.5));
+}
+
+/******************************************************//**
+ * @brief  Write and receive a byte via SPI
+ * @param[in] pByteToTransmit pointer to the byte to transmit
+ * @param[in] pReceivedByte pointer to the received byte
+ * @retval None
+ **********************************************************/
+void L6474::L6474_WriteBytes(uint8_t *pByteToTransmit, uint8_t *pReceivedByte)
+{
+  if (L6474_SpiWriteBytes(pByteToTransmit, pReceivedByte) != 0)
+  {
+    L6474_ErrorHandler(L6474_ERROR_1);
+  }
+  
+  if (isrFlag)
+  {
+    spiPreemtionByIsr = TRUE;
+  }
+}
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Components/l6474/l6474_class.h	Wed Oct 14 15:12:18 2015 +0000
@@ -0,0 +1,660 @@
+/**
+  ******************************************************************************
+  * @file    l6474_class.h
+  * @author  IPC Rennes
+  * @version V1.5.0
+  * @date    November 12, 2014
+  * @brief   L6474 driver (fully integrated microstepping motor driver)
+  * @note    (C) COPYRIGHT 2014 STMicroelectronics
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
+  *
+  * Redistribution and use in source and binary forms, with or without modification,
+  * are permitted provided that the following conditions are met:
+  *   1. Redistributions of source code must retain the above copyright notice,
+  *      this list of conditions and the following disclaimer.
+  *   2. Redistributions in binary form must reproduce the above copyright notice,
+  *      this list of conditions and the following disclaimer in the documentation
+  *      and/or other materials provided with the distribution.
+  *   3. Neither the name of STMicroelectronics nor the names of its contributors
+  *      may be used to endorse or promote products derived from this software
+  *      without specific prior written permission.
+  *
+  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+  *
+  ******************************************************************************
+  */
+
+
+/* Generated with Stm32CubeTOO -----------------------------------------------*/
+
+
+/* Revision ------------------------------------------------------------------*/
+/*
+    Repository:       http://svn.x-nucleodev.codex.cro.st.com/svnroot/X-NucleoDev
+    Branch/Trunk/Tag: trunk
+    Based on:         X-CUBE-SPN1/trunk/Drivers/BSP/Components/l6474/l6474.h
+    Revision:         0
+*/
+
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+
+#ifndef __L6474_CLASS_H
+#define __L6474_CLASS_H
+
+
+/* Includes ------------------------------------------------------------------*/
+
+/* ACTION 1 ------------------------------------------------------------------*
+ * Include here platform specific header files.                               *
+ *----------------------------------------------------------------------------*/        
+#include "mbed.h"
+#include "DevSPI.h"
+/* ACTION 2 ------------------------------------------------------------------*
+ * Include here component specific header files.                              *
+ *----------------------------------------------------------------------------*/        
+#include "l6474.h"
+/* ACTION 3 ------------------------------------------------------------------*
+ * Include here interface specific header files.                              *
+ *                                                                            *
+ * Example:                                                                   *
+ *   #include "../Interfaces/Humidity_class.h"                                *
+ *   #include "../Interfaces/Temperature_class.h"                             *
+ *----------------------------------------------------------------------------*/
+#include "../Interfaces/Motor_class.h"
+
+
+/* Functions -----------------------------------------------------------------*/
+
+extern void PWMCallback(void);
+
+
+/* Classes -------------------------------------------------------------------*/
+
+/** Class representing a L6474 component.
+ */
+class L6474 : public Motor
+{
+public:
+
+    /*** Constructor and Destructor Methods ***/
+
+    /**
+     * @brief Constructor.
+     * @param reset     pin name of the STBY\RST pin of the component.
+     * @param direction pin name of the DIR pin of the component.
+     * @param pwm       pin name of the PWM pin of the component.
+     * @param ssel      pin name of the SSEL pin of the SPI device to be used for communication.
+     * @param spi       SPI device to be used for communication.
+     */
+    L6474(PinName reset, PinName direction, PinName pwm, PinName ssel, DevSPI &spi) : Motor(), direction(direction), pwm(pwm), reset(reset), ssel(ssel), dev_spi(spi)
+    {
+        /* ACTION 4 ----------------------------------------------------------*
+         * Initialize here the component's member variables, one variable per *
+         * line.                                                              *
+         *                                                                    *
+         * Example:                                                           *
+         *   T0_out = 0;                                                      *
+         *   T1_out = 0;                                                      *
+         *   T0_degC = 0;                                                     *
+         *   T1_degC = 0;                                                     *
+         *--------------------------------------------------------------------*/
+        flagInterruptCallback = 0;
+        errorHandlerCallback = 0;
+        memset(spiTxBursts, 0, L6474_CMD_ARG_MAX_NB_BYTES);
+        memset(spiRxBursts, 0, L6474_CMD_ARG_MAX_NB_BYTES);
+        spiPreemtionByIsr = 0;
+        isrFlag = 0;
+        //devicePrm = 0;
+        deviceInstance = numberOfDevices;
+        numberOfDevices++;
+    }
+    
+    /**
+     * @brief Destructor.
+     */
+    virtual ~L6474(void) {}
+    
+
+    /*** Public Component Related Methods ***/
+
+    /* ACTION 5 --------------------------------------------------------------*
+     * Implement here the component's public methods, as wrappers of the C    *
+     * component's functions.                                                 *
+     * They should be:                                                        *
+     *   + Methods with the same name of the C component's virtual table's    *
+     *     functions (1);                                                     *
+     *   + Methods with the same name of the C component's extended virtual   *
+     *     table's functions, if any (2).                                     *
+     *                                                                        *
+     * Example:                                                               *
+     *   virtual int GetValue(float *pData) //(1)                             *
+     *   {                                                                    *
+     *     return COMPONENT_GetValue(float *pfData);                          *
+     *   }                                                                    *
+     *                                                                        *
+     *   virtual int EnableFeature(void) //(2)                                *
+     *   {                                                                    *
+     *     return COMPONENT_EnableFeature();                                  *
+     *   }                                                                    *
+     *------------------------------------------------------------------------*/
+    virtual int Init(void *init)
+    {
+        return (int) L6474_Init((MOTOR_InitTypeDef *) init);
+    }
+
+    virtual int ReadID(uint8_t *id)
+    {
+        return (int) L6474_ReadID((uint8_t *) id);
+    }
+
+    virtual void AttachErrorHandler(void (*callback)(uint16_t error))
+    {
+        L6474_AttachErrorHandler((void (*)(uint16_t error)) callback);
+    }
+
+    virtual void AttachFlagInterrupt(void (*callback)(void))
+    {
+        L6474_AttachFlagInterrupt((void (*)(void)) callback);
+    }
+
+    virtual void FlagInterruptHandler(void)
+    {
+        L6474_FlagInterruptHandler();
+    }
+
+    virtual uint16_t GetAcceleration(void)
+    {
+        return (uint16_t) L6474_GetAcceleration();
+    }
+
+    virtual uint16_t GetCurrentSpeed(void)
+    {
+        return (uint16_t) L6474_GetCurrentSpeed();
+    }
+
+    virtual uint16_t GetDeceleration(void)
+    {
+        return (uint16_t) L6474_GetDeceleration();
+    }
+
+    virtual motorState_t GetDeviceState(void)
+    {
+        return (motorState_t) L6474_GetDeviceState();
+    }
+
+    virtual uint8_t GetFwVersion(void)
+    {
+        return (uint8_t) L6474_GetFwVersion();
+    }
+
+    virtual int32_t GetMark(void)
+    {
+        return (int32_t) L6474_GetMark();
+    }
+
+    virtual uint16_t GetMaxSpeed(void)
+    {
+        return (uint16_t) L6474_GetMaxSpeed();
+    }
+
+    virtual uint16_t GetMinSpeed(void)
+    {
+        return (uint16_t) L6474_GetMinSpeed();
+    }
+
+    virtual int32_t GetPosition(void)
+    {
+        return (int32_t) L6474_GetPosition();
+    }
+
+    virtual void GoHome(void)
+    {
+        L6474_GoHome();
+    }
+
+    virtual void GoMark(void)
+    {
+        L6474_GoMark();
+    }
+
+    virtual void GoTo(int32_t targetPosition)
+    {
+        L6474_GoTo((int32_t) targetPosition);
+    }
+
+    virtual void HardStop(void)
+    {
+        L6474_HardStop();
+    }
+
+    virtual void Move(motorDir_t direction, uint32_t stepCount)
+    {
+        L6474_Move((motorDir_t) direction, (uint32_t) stepCount);
+    }
+
+    virtual void Run(motorDir_t direction)
+    {
+        L6474_Run((motorDir_t) direction);
+    }
+
+    virtual bool SetAcceleration(uint16_t newAcc)
+    {
+        return (bool) L6474_SetAcceleration((uint16_t) newAcc);
+    }
+
+    virtual bool SetDeceleration(uint16_t newDec)
+    {
+        return (bool) L6474_SetDeceleration((uint16_t) newDec);
+    }
+
+    virtual void SetHome(void)
+    {
+        L6474_SetHome();
+    }
+
+    virtual void SetMark(void)
+    {
+        L6474_SetMark();
+    }
+
+    virtual bool SetMaxSpeed(uint16_t newMaxSpeed)
+    {
+        return (bool) L6474_SetMaxSpeed((uint16_t) newMaxSpeed);
+    }
+
+    virtual bool SetMinSpeed(uint16_t newMinSpeed)
+    {
+        return (bool) L6474_SetMinSpeed((uint16_t) newMinSpeed);
+    }
+
+    virtual bool SoftStop(void)
+    {
+        return (bool) L6474_SoftStop();
+    }
+
+    virtual void StepClockHandler(void)
+    {
+        L6474_StepClockHandler();
+    }
+
+    virtual void CmdDisable(void)
+    {
+        L6474_CmdDisable();
+    }
+
+    virtual void CmdEnable(void)
+    {
+        L6474_CmdEnable();
+    }
+
+    virtual uint32_t CmdGetParam(uint32_t param)
+    {
+        return (uint32_t) L6474_CmdGetParam((uint32_t) param);
+    }
+
+    virtual uint16_t CmdGetStatus(void)
+    {
+        return (uint16_t) L6474_CmdGetStatus();
+    }
+
+    virtual void CmdNop(void)
+    {
+        L6474_CmdNop();
+    }
+
+    virtual void CmdSetParam(uint32_t param, uint32_t value)
+    {
+        L6474_CmdSetParam((uint32_t) param, (uint32_t) value);
+    }
+
+    virtual uint16_t ReadStatusRegister(void)
+    {
+        return (uint16_t) L6474_ReadStatusRegister();
+    }
+
+    virtual void ReleaseReset(void)
+    {
+        L6474_ReleaseReset();
+    }
+
+    virtual void Reset(void)
+    {
+        L6474_Reset();
+    }
+
+    virtual void SelectStepMode(motorStepMode_t stepMod)
+    {
+        L6474_SelectStepMode((motorStepMode_t) stepMod);
+    }
+
+    virtual void SetDirection(motorDir_t direction)
+    {
+        L6474_SetDirection((motorDir_t) direction);
+    }
+
+    virtual void ErrorHandler(uint16_t error)
+    {
+        L6474_ErrorHandler((uint16_t) error);
+    }
+
+
+    /*** Public Interrupt Related Methods ***/
+
+    /* ACTION 6 --------------------------------------------------------------*
+     * Implement here interrupt related methods, if any.                      *
+     * Note that interrupt handling is platform dependent, e.g.:              *
+     *   + mbed:                                                              *
+     *     InterruptIn feature_int(pin); //Interrupt object.                  *
+     *     feature_int.rise(callback);   //Attach a callback.                 *
+     *     feature_int.mode(PullNone);   //Set interrupt mode.                *
+     *     feature_int.enable_irq();     //Enable interrupt.                  *
+     *     feature_int.disable_irq();    //Disable interrupt.                 *
+     *   + Arduino:                                                           *
+     *     attachInterrupt(pin, callback, RISING); //Attach a callback.       *
+     *     detachInterrupt(pin);                   //Detach a callback.       *
+     *                                                                        *
+     * Example (mbed):                                                        *
+     *   void Attach_Feature_IRQ(void (*fptr) (void))                         *
+     *   {                                                                    *
+     *     feature_int.rise(fptr);                                            *
+     *   }                                                                    *
+     *                                                                        *
+     *   void Enable_Feature_IRQ(void)                                        *
+     *   {                                                                    *
+     *     feature_int.enable_irq();                                          *
+     *   }                                                                    *
+     *                                                                        *
+     *   void Disable_Feature_IRQ(void)                                       *
+     *   {                                                                    *
+     *     feature_int.disable_irq();                                         *
+     *   }                                                                    *
+     *------------------------------------------------------------------------*/
+
+
+protected:
+
+    /*** Protected Component Related Methods ***/
+
+    /* ACTION 7 --------------------------------------------------------------*
+     * Declare here the component's specific methods.                         *
+     * They should be:                                                        *
+     *   + Methods with the same name of the C component's virtual table's    *
+     *     functions (1);                                                     *
+     *   + Methods with the same name of the C component's extended virtual   *
+     *     table's functions, if any (2);                                     *
+     *   + Helper methods, if any, like functions declared in the component's *
+     *     source files but not pointed by the component's virtual table (3). *
+     *                                                                        *
+     * Example:                                                               *
+     *   DrvStatusTypeDef COMPONENT_GetValue(float* pfData); //(1)            *
+     *   DrvStatusTypeDef COMPONENT_EnableFeature(void);     //(2)            *
+     *   DrvStatusTypeDef COMPONENT_ComputeAverage(void);    //(3)            *
+     *------------------------------------------------------------------------*/
+    void L6474_AttachErrorHandler(void (*callback)(uint16_t error));   //Attach a user callback to the error handler
+    void L6474_AttachFlagInterrupt(void (*callback)(void));            //Attach a user callback to the flag Interrupt
+    DrvStatusTypeDef L6474_Init(MOTOR_InitTypeDef *init);              //Start the L6474 library
+    DrvStatusTypeDef L6474_ReadID(uint8_t *id);                        //Read Id to get driver instance
+    uint16_t L6474_GetAcceleration(void);                              //Return the acceleration in pps^2
+    uint16_t L6474_GetCurrentSpeed(void);                              //Return the current speed in pps
+    uint16_t L6474_GetDeceleration(void);                              //Return the deceleration in pps^2
+    motorState_t L6474_GetDeviceState(void);                           //Return the device state
+    uint8_t L6474_GetFwVersion(void);                                  //Return the FW version
+    int32_t L6474_GetMark(void);                                       //Return the mark position 
+    uint16_t L6474_GetMaxSpeed(void);                                  //Return the max speed in pps
+    uint16_t L6474_GetMinSpeed(void);                                  //Return the min speed in pps
+    int32_t L6474_GetPosition(void);                                   //Return the ABS_POSITION (32b signed)
+    void L6474_GoHome(void);                                           //Move to the home position
+    void L6474_GoMark(void);                                           //Move to the Mark position
+    void L6474_GoTo(int32_t targetPosition);                           //Go to the specified position
+    void L6474_HardStop(void);                                         //Stop the motor and disable the power bridge
+    void L6474_Move(motorDir_t direction, uint32_t stepCount);         //Move the motor of the specified number of steps
+    void L6474_Run(motorDir_t direction);                              //Run the motor 
+    bool L6474_SetAcceleration(uint16_t newAcc);                       //Set the acceleration in pps^2
+    bool L6474_SetDeceleration(uint16_t newDec);                       //Set the deceleration in pps^2
+    void L6474_SetHome(void);                                          //Set current position to be the home position
+    void L6474_SetMark(void);                                          //Set current position to be the Markposition
+    bool L6474_SetMaxSpeed(uint16_t newMaxSpeed);                      //Set the max speed in pps
+    bool L6474_SetMinSpeed(uint16_t newMinSpeed);                      //Set the min speed in pps   
+    bool L6474_SoftStop(void);                                         //Progressively stops the motor 
+    void L6474_CmdDisable(void);                                       //Send the L6474_DISABLE command
+    void L6474_CmdEnable(void);                                        //Send the L6474_ENABLE command
+    uint32_t L6474_CmdGetParam(uint32_t param);                        //Send the L6474_GET_PARAM command
+    uint16_t L6474_CmdGetStatus(void);                                 //Send the L6474_GET_STATUS command
+    void L6474_CmdNop(void);                                           //Send the L6474_NOP command
+    void L6474_CmdSetParam(uint32_t param, uint32_t value);            //Send the L6474_SET_PARAM command
+    uint16_t L6474_ReadStatusRegister(void);                           //Read the L6474_STATUS register without clearing the flags
+    void L6474_SelectStepMode(motorStepMode_t stepMod);                //Step mode selection
+    void L6474_SetDirection(motorDir_t direction);                     //Set the L6474 direction pin
+    void L6474_ApplySpeed(uint16_t newSpeed);
+    void L6474_ComputeSpeedProfile(uint32_t nbSteps);
+    int32_t L6474_ConvertPosition(uint32_t abs_position_reg); 
+    void L6474_ErrorHandler(uint16_t error);
+    void L6474_FlagInterruptHandler(void);
+    void L6474_SendCommand(uint8_t param);
+    void L6474_SetRegisterToPredefinedValues(void);
+    void L6474_WriteBytes(uint8_t *pByteToTransmit, uint8_t *pReceivedByte);    
+    void L6474_SetDeviceParamsToPredefinedValues(void);
+    void L6474_StartMovement(void);
+    void L6474_StepClockHandler(void);  
+    uint8_t L6474_Tval_Current_to_Par(double Tval);
+    uint8_t L6474_Tmin_Time_to_Par(double Tmin);
+
+
+    /*** Component's I/O Methods ***/
+
+    /**
+     * @brief      Utility function to read data from L6474.
+     * @param[out] pBuffer pointer to the buffer to read data into.
+     * @param[in]  NumBytesToRead number of bytes to read.
+     * @retval     COMPONENT_OK in case of success, COMPONENT_ERROR otherwise.
+     */
+    DrvStatusTypeDef Read(uint8_t* pBuffer, uint16_t NumBytesToRead)
+    {
+        if (dev_spi.spi_read(pBuffer, ssel, NumBytesToRead) != 0)
+            return COMPONENT_ERROR;
+        return COMPONENT_OK;
+    }
+    
+    /**
+     * @brief      Utility function to write data to L6474.
+     * @param[in]  pBuffer pointer to the buffer of data to send.
+     * @param[in]  NumBytesToWrite number of bytes to write.
+     * @retval     COMPONENT_OK in case of success, COMPONENT_ERROR otherwise.
+     */
+    DrvStatusTypeDef Write(uint8_t* pBuffer, uint16_t NumBytesToWrite)
+    {
+        if (dev_spi.spi_write(pBuffer, ssel, NumBytesToWrite) != 0)
+            return COMPONENT_ERROR;
+        return COMPONENT_OK;
+    }
+
+    /**
+     * @brief      Utility function to read and write data from/to L6474 at the same time.
+     * @param[out] pBufferToRead pointer to the buffer to read data into.
+     * @param[in]  pBufferToWrite pointer to the buffer of data to send.
+     * @param[in]  NumBytes number of bytes to read and write.
+     * @retval     COMPONENT_OK in case of success, COMPONENT_ERROR otherwise.
+     */
+    DrvStatusTypeDef ReadWrite(uint8_t* pBufferToRead, uint8_t* pBufferToWrite, uint16_t NumBytes)
+    {
+        if (dev_spi.spi_read_write(pBufferToRead, pBufferToWrite, ssel, NumBytes) != 0)
+            return COMPONENT_ERROR;
+        return COMPONENT_OK;
+    }
+
+    /* ACTION 8 --------------------------------------------------------------*
+     * Implement here other I/O methods beyond those already implemented      *
+     * above, which are declared extern within the component's header file.   *
+     *------------------------------------------------------------------------*/
+    /*
+     * System call to make the CPU wait.
+     */
+    void L6474_Delay(uint32_t delay)
+    {
+        /* TO BE IMPLEMENTED BY USING TARGET PLATFORM'S APIs */
+        wait_ms(delay);
+    }
+
+    /*
+     * System call to enable interrupts.
+     */
+    void L6474_EnableIrq(void)
+    {
+        /* TO BE IMPLEMENTED BY USING TARGET PLATFORM'S APIs */
+        __enable_irq();
+    }
+
+    /*
+     * System call to disable interrupts.
+     */
+    void L6474_DisableIrq(void)
+    {
+        /* TO BE IMPLEMENTED BY USING TARGET PLATFORM'S APIs */
+        __disable_irq();
+    }
+
+    /*
+     * Sets the frequency of PWM.
+     * The frequency is directly the current speed of the device.
+     */
+    void L6474_PwmSetFreq(uint16_t newFreq)
+    {
+        /* TO BE IMPLEMENTED BY USING TARGET PLATFORM'S APIs */
+        double period = 1.0f / newFreq;
+        pwm.period(period);
+        pwm.write(0.5f);
+        ticker.attach(&PWMCallback, period);
+    }
+
+    /*
+     * Initialises the PWM uses by the specified device.
+     *  + Device 0 uses PWM1 based on timer 1;
+     *  + Device 1 uses PWM2 based on timer 2;
+     *  + Device 2 uses PWM3 based on timer 3.
+     */
+    void L6474_PwmInit(void)
+    {
+        /* TO BE IMPLEMENTED BY USING TARGET PLATFORM'S APIs */
+    }
+
+    /*
+     * Stops the PWM.
+     */
+    void L6474_PwmStop(void)
+    {
+        /* TO BE IMPLEMENTED BY USING TARGET PLATFORM'S APIs */
+        pwm.write(0.0f);
+        ticker.detach();
+    }
+
+    /*
+     * Setting the standby/reset pin to high.
+     */
+    void L6474_ReleaseReset(void)
+    {
+        reset = 1;
+    }
+
+    /*
+     * Resetting the standby/reset pin to put the device in standby mode.
+     */
+    void L6474_Reset(void)
+    {
+        reset = 0;
+    }
+
+    /*
+     * Set the direction of rotation.
+     */
+    void L6474_SetDirectionGpio(uint8_t gpioState)
+    {
+        direction = gpioState;
+    }
+
+    /*
+     * Write and read bytes to/from the component through the SPI at the same time.
+     */
+    uint8_t L6474_SpiWriteBytes(uint8_t *pByteToTransmit, uint8_t *pReceivedByte)
+    {
+        return (uint8_t) ReadWrite(pReceivedByte, pByteToTransmit, numberOfDevices);
+    }
+
+
+    /*** Component's Instance Variables ***/
+
+    /* Identity */
+    uint8_t who_am_i;
+
+    /* ACTION 9 --------------------------------------------------------------*
+     * There should be only a unique identifier for each component, which     *
+     * should be the "who_am_i" parameter, hence this parameter is optional.  *
+     *------------------------------------------------------------------------*/
+    /* Type. */
+    uint8_t type;
+
+    /* Configuration. */
+    DigitalOut ssel;
+
+    /* Standby and reset pin. */
+    DigitalOut reset;
+
+    /* Direction of rotation pin. */
+    DigitalOut direction;
+
+    /* Pulse Width Modulation pin. */
+    PwmOut pwm;
+
+    /* Timer to trigger the PWM callback at each PWM pulse. */
+    Ticker ticker;
+
+    /* IO Device. */
+    DevSPI &dev_spi;
+
+    /* Interrupts. */
+    /* ACTION 10 -------------------------------------------------------------*
+     * Put here interrupt related objects, if needed.                         *
+     * Note that interrupt handling is platform dependent, see                *
+     * "Interrupt Related Methods" above.                                     *
+     *                                                                        *
+     * Example:                                                               *
+     *   + mbed:                                                              *
+     *     InterruptIn feature_int;                                           *
+     *------------------------------------------------------------------------*/
+
+    /* Data. */
+    /* ACTION 11 -------------------------------------------------------------*
+     * Declare here the component's data, one variable per line.              *
+     *                                                                        *
+     * Example:                                                               *
+     *   int T0_out;                                                          *
+     *   int T1_out;                                                          *
+     *   float T0_degC;                                                       *
+     *   float T1_degC;                                                       *
+     *------------------------------------------------------------------------*/
+    void (*flagInterruptCallback)(void);
+    void (*errorHandlerCallback)(uint16_t error);
+    uint8_t spiTxBursts[L6474_CMD_ARG_MAX_NB_BYTES];
+    uint8_t spiRxBursts[L6474_CMD_ARG_MAX_NB_BYTES];
+    bool spiPreemtionByIsr;
+    bool isrFlag;
+    deviceParams_t devicePrm;
+    static uint8_t numberOfDevices;
+    uint8_t deviceInstance;
+};
+
+#endif // __L6474_CLASS_H
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ 
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Components/l6474/l6474_target_config.h	Wed Oct 14 15:12:18 2015 +0000
@@ -0,0 +1,238 @@
+/**************************************************************************//**
+  * @file    l6474_target_config.h
+  * @author  IPC Rennes
+  * @version V1.5.0
+  * @date    November 12, 2014
+  * @brief   Predefines values for the L6474 registers
+  * and for the devices parameters
+  * @note    (C) COPYRIGHT 2014 STMicroelectronics
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
+  *
+  * Redistribution and use in source and binary forms, with or without modification,
+  * are permitted provided that the following conditions are met:
+  *   1. Redistributions of source code must retain the above copyright notice,
+  *      this list of conditions and the following disclaimer.
+  *   2. Redistributions in binary form must reproduce the above copyright notice,
+  *      this list of conditions and the following disclaimer in the documentation
+  *      and/or other materials provided with the distribution.
+  *   3. Neither the name of STMicroelectronics nor the names of its contributors
+  *      may be used to endorse or promote products derived from this software
+  *      without specific prior written permission.
+  *
+  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+  *
+  ******************************************************************************
+  */
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __L6474_TARGET_CONFIG_H
+#define __L6474_TARGET_CONFIG_H
+
+#ifdef __cplusplus
+ extern "C" {
+#endif 
+
+/** @addtogroup BSP
+  * @{
+  */   
+   
+/** @addtogroup L6474
+  * @{
+  */   
+
+/** @addtogroup L6474_Exported_Constants
+  * @{
+  */   
+   
+/** @defgroup Predefined_L6474_Registers_Values
+  * @{
+  */   
+   
+/// The maximum number of devices in the daisy chain
+#define MAX_NUMBER_OF_DEVICES                 (3)
+
+/************************ Speed Profile  *******************************/
+
+/// Acceleration rate in step/s2 for device 0 (must be greater than 0)
+#define L6474_CONF_PARAM_ACC_DEVICE_0        (160)
+/// Acceleration rate in step/s2 for device 1 (must be greater than 0)
+#define L6474_CONF_PARAM_ACC_DEVICE_1        (160)
+/// Acceleration rate in step/s2 for device 2 (must be greater than 0)
+#define L6474_CONF_PARAM_ACC_DEVICE_2        (160)
+
+/// Deceleration rate in step/s2 for device 0 (must be greater than 0)
+#define L6474_CONF_PARAM_DEC_DEVICE_0        (160)
+/// Deceleration rate in step/s2 for device 1 (must be greater than 0)
+#define L6474_CONF_PARAM_DEC_DEVICE_1        (160)
+/// Deceleration rate in step/s2 for device 2 (must be greater than 0)
+#define L6474_CONF_PARAM_DEC_DEVICE_2        (160)
+
+/// Maximum speed in step/s for device 0 (30 step/s < Maximum speed <= 10 000 step/s )
+#define L6474_CONF_PARAM_MAX_SPEED_DEVICE_0  (1600)
+/// Maximum speed in step/s for device 1 (30 step/s < Maximum speed <= 10 000 step/s )
+#define L6474_CONF_PARAM_MAX_SPEED_DEVICE_1  (1600)
+/// Maximum speed in step/s for device 2 (30 step/s < Maximum speed <= 10 000 step/s )
+#define L6474_CONF_PARAM_MAX_SPEED_DEVICE_2  (1600)
+
+/// Minimum speed in step/s for device 0 (30 step/s <= Minimum speed < 10 000 step/s)
+#define L6474_CONF_PARAM_MIN_SPEED_DEVICE_0  (800)
+/// Minimum speed in step/s for device 1 (30 step/s <= Minimum speed < 10 000 step/s)
+#define L6474_CONF_PARAM_MIN_SPEED_DEVICE_1  (800)
+/// Minimum speed in step/s for device 2 (30 step/s <= Minimum speed < 10 000 step/s)
+#define L6474_CONF_PARAM_MIN_SPEED_DEVICE_2  (800)
+
+
+/************************ Phase Current Control *******************************/
+
+// Current value that is assigned to the torque regulation DAC
+/// TVAL register value for device 0 (range 31.25mA to 4000mA)
+#define L6474_CONF_PARAM_TVAL_DEVICE_0  (250)
+/// TVAL register value for device 1 (range 31.25mA to 4000mA)
+#define L6474_CONF_PARAM_TVAL_DEVICE_1  (250)
+/// TVAL register value for device 2 (range 31.25mA to 4000mA)
+#define L6474_CONF_PARAM_TVAL_DEVICE_2  (250)
+
+/// Fall time value (T_FAST field of T_FAST register) for device 0 (range 2us to 32us)
+#define L6474_CONF_PARAM_FAST_STEP_DEVICE_0  (L6474_FAST_STEP_12us)
+/// Fall time value (T_FAST field of T_FAST register) for device 1 (range 2us to 32us)
+#define L6474_CONF_PARAM_FAST_STEP_DEVICE_1  (L6474_FAST_STEP_12us)
+/// Fall time value (T_FAST field of T_FAST register) for device 2 (range 2us to 32us)
+#define L6474_CONF_PARAM_FAST_STEP_DEVICE_2  (L6474_FAST_STEP_12us)
+
+/// Maximum fast decay time (T_OFF field of T_FAST register) for device 0 (range 2us to 32us)
+#define L6474_CONF_PARAM_TOFF_FAST_DEVICE_0  (L6474_TOFF_FAST_8us)
+/// Maximum fast decay time (T_OFF field of T_FAST register) for device 1 (range 2us to 32us)
+#define L6474_CONF_PARAM_TOFF_FAST_DEVICE_1  (L6474_TOFF_FAST_8us)
+/// Maximum fast decay time (T_OFF field of T_FAST register) for device 2 (range 2us to 32us)
+#define L6474_CONF_PARAM_TOFF_FAST_DEVICE_2  (L6474_TOFF_FAST_8us)
+
+/// Minimum ON time (TON_MIN register) for device 0 (range 0.5us to 64us)
+#define L6474_CONF_PARAM_TON_MIN_DEVICE_0 (3)
+/// Minimum ON time (TON_MIN register) for device 1 (range 0.5us to 64us)
+#define L6474_CONF_PARAM_TON_MIN_DEVICE_1 (3)
+/// Minimum ON time (TON_MIN register) for device 2 (range 0.5us to 64us)
+#define L6474_CONF_PARAM_TON_MIN_DEVICE_2 (3)
+
+/// Minimum OFF time (TOFF_MIN register) for device 0 (range 0.5us to 64us)
+#define L6474_CONF_PARAM_TOFF_MIN_DEVICE_0 (21)
+/// Minimum OFF time (TOFF_MIN register) for device 1 (range 0.5us to 64us)
+#define L6474_CONF_PARAM_TOFF_MIN_DEVICE_1 (21)
+/// Minimum OFF time (TOFF_MIN register) for device 2 (range 0.5us to 64us)
+#define L6474_CONF_PARAM_TOFF_MIN_DEVICE_2 (21)
+
+/******************************* Others ***************************************/
+
+/// Overcurrent threshold settings for device 0 (OCD_TH register)
+#define L6474_CONF_PARAM_OCD_TH_DEVICE_0  (L6474_OCD_TH_750mA)
+/// Overcurrent threshold settings for device 1 (OCD_TH register)
+#define L6474_CONF_PARAM_OCD_TH_DEVICE_1  (L6474_OCD_TH_750mA)
+/// Overcurrent threshold settings for device 2 (OCD_TH register)
+#define L6474_CONF_PARAM_OCD_TH_DEVICE_2  (L6474_OCD_TH_750mA)
+
+/// Alarm settings for device 0 (ALARM_EN register)
+#define L6474_CONF_PARAM_ALARM_EN_DEVICE_0  (L6474_ALARM_EN_OVERCURRENT |\
+                                             L6474_ALARM_EN_THERMAL_SHUTDOWN |\
+                                             L6474_ALARM_EN_THERMAL_WARNING |\
+                                             L6474_ALARM_EN_UNDERVOLTAGE |\
+                                             L6474_ALARM_EN_SW_TURN_ON |\
+                                             L6474_ALARM_EN_WRONG_NPERF_CMD)
+
+///Alarm settings for device 1 (ALARM_EN register)
+#define L6474_CONF_PARAM_ALARM_EN_DEVICE_1  (L6474_ALARM_EN_OVERCURRENT |\
+                                             L6474_ALARM_EN_THERMAL_SHUTDOWN |\
+                                             L6474_ALARM_EN_THERMAL_WARNING |\
+                                             L6474_ALARM_EN_UNDERVOLTAGE |\
+                                             L6474_ALARM_EN_SW_TURN_ON |\
+                                             L6474_ALARM_EN_WRONG_NPERF_CMD)
+
+/// Alarm settings for device 2 (ALARM_EN register)
+#define L6474_CONF_PARAM_ALARM_EN_DEVICE_2  (L6474_ALARM_EN_OVERCURRENT |\
+                                             L6474_ALARM_EN_THERMAL_SHUTDOWN |\
+                                             L6474_ALARM_EN_THERMAL_WARNING |\
+                                             L6474_ALARM_EN_UNDERVOLTAGE |\
+                                             L6474_ALARM_EN_SW_TURN_ON |\
+                                             L6474_ALARM_EN_WRONG_NPERF_CMD)
+
+/// Step selection settings for device 0 (STEP_SEL field of STEP_MODE register)
+#define L6474_CONF_PARAM_STEP_SEL_DEVICE_0  (L6474_STEP_SEL_1_16)
+/// Step selection settings for device 1 (STEP_SEL field of STEP_MODE register)
+#define L6474_CONF_PARAM_STEP_SEL_DEVICE_1  (L6474_STEP_SEL_1_16)
+/// Step selection settings for device 2 (STEP_SEL field of STEP_MODE register)
+#define L6474_CONF_PARAM_STEP_SEL_DEVICE_2  (L6474_STEP_SEL_1_16)
+
+/// Synch. selection settings for device 0 (SYNC_SEL field of STEP_MODE register)
+#define L6474_CONF_PARAM_SYNC_SEL_DEVICE_0  (L6474_SYNC_SEL_1_2)
+/// Synch. selection settings for device 1 (SYNC_SEL field of STEP_MODE register)
+#define L6474_CONF_PARAM_SYNC_SEL_DEVICE_1  (L6474_SYNC_SEL_1_2)
+/// Synch. selection settings for device 2 (SYNC_SEL field of STEP_MODE register)
+#define L6474_CONF_PARAM_SYNC_SEL_DEVICE_2  (L6474_SYNC_SEL_1_2)
+
+/// Target Swicthing Period for device 0 (field TOFF of CONFIG register)
+#define L6474_CONF_PARAM_TOFF_DEVICE_0  (L6474_CONFIG_TOFF_044us)
+/// Target Swicthing Period for device 1 (field TOFF of CONFIG register)
+#define L6474_CONF_PARAM_TOFF_DEVICE_1  (L6474_CONFIG_TOFF_044us)
+/// Target Swicthing Period for device 2 (field TOFF of CONFIG register)
+#define L6474_CONF_PARAM_TOFF_DEVICE_2  (L6474_CONFIG_TOFF_044us)
+
+/// Slew rate for device 0 (POW_SR field of CONFIG register)
+#define L6474_CONF_PARAM_SR_DEVICE_0  (L6474_CONFIG_SR_320V_us)
+/// Slew rate for device 1 (POW_SR field of CONFIG register)
+#define L6474_CONF_PARAM_SR_DEVICE_1  (L6474_CONFIG_SR_320V_us)
+/// Slew rate for device 2 (POW_SR field of CONFIG register)
+#define L6474_CONF_PARAM_SR_DEVICE_2  (L6474_CONFIG_SR_320V_us)
+
+/// Over current shutwdown enabling for device 0 (OC_SD field of CONFIG register)
+#define L6474_CONF_PARAM_OC_SD_DEVICE_0  (L6474_CONFIG_OC_SD_ENABLE)
+/// Over current shutwdown enabling for device 1 (OC_SD field of CONFIG register)
+#define L6474_CONF_PARAM_OC_SD_DEVICE_1  (L6474_CONFIG_OC_SD_ENABLE)
+/// Over current shutwdown enabling for device 2 (OC_SD field of CONFIG register)
+#define L6474_CONF_PARAM_OC_SD_DEVICE_2  (L6474_CONFIG_OC_SD_ENABLE)
+
+/// Torque regulation method for device 0 (EN_TQREG field of CONFIG register)
+#define L6474_CONF_PARAM_TQ_REG_DEVICE_0  (L6474_CONFIG_EN_TQREG_TVAL_USED)
+///Torque regulation method for device 1 (EN_TQREG field of CONFIG register)
+#define L6474_CONF_PARAM_TQ_REG_DEVICE_1  (L6474_CONFIG_EN_TQREG_TVAL_USED)
+/// Torque regulation method for device 2 (EN_TQREG field of CONFIG register)
+#define L6474_CONF_PARAM_TQ_REG_DEVICE_2  (L6474_CONFIG_EN_TQREG_TVAL_USED)
+
+/// Clock setting for device 0 (OSC_CLK_SEL field of CONFIG register)
+#define L6474_CONF_PARAM_CLOCK_SETTING_DEVICE_0  (L6474_CONFIG_INT_16MHZ)
+/// Clock setting for device 1 (OSC_CLK_SEL field of CONFIG register)
+#define L6474_CONF_PARAM_CLOCK_SETTING_DEVICE_1  (L6474_CONFIG_INT_16MHZ)
+/// Clock setting for device 2 (OSC_CLK_SEL field of CONFIG register)
+#define L6474_CONF_PARAM_CLOCK_SETTING_DEVICE_2  (L6474_CONFIG_INT_16MHZ)
+
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+#ifdef __cplusplus
+  }
+#endif
+
+#endif /* __L6474_TARGET_CONFIG_H */
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/X_NUCLEO_COMMON.lib	Wed Oct 14 15:12:18 2015 +0000
@@ -0,0 +1,1 @@
+http://developer.mbed.org/teams/ST/code/X_NUCLEO_COMMON/#1f35e8bf427b