Library to handle the X-NUCLEO-IHM06A1 Motor Control Expansion Board based on the STSPIN220 component.

Dependencies:   ST_INTERFACES

Dependents:   HelloWorld_IHM06A1

Fork of X-NUCLEO-IHM06A1 by ST Expansion SW Team

Motor Control Library

Library to handle the X-NUCLEO-IHM06A1 Motor Control Expansion Board based on the STSPIN220 component.

It features the:

  • Read and write of the device parameters; GPIO, PWM and IRQ configuration; microstepping, direction position, speed, acceleration, deceleration and torque controls
  • Automatic full-step switch management; high impedance or hold stop mode selection; enable and standby management
  • Fault interrupts handling (over current, short-circuit and over temperature)
  • Command locking until the device completes movement

The API allows to easily:

  • perform various positioning, moves and stops
  • get/set or monitor the motor positions
  • set the home position and mark another position
  • get/set the minimum and maximum speed
  • get the current speed
  • get/set the acceleration and deceleration
  • get/set the stop mode (hold, hiz or standby)
  • get/set the torque
  • get/set the torque boost
  • get/set the step mode (up to 1/256)

Platform compatibility

Compatible platforms have been tested with the configurations provided by the HelloWorld_IHM06A1 example.

Revision:
3:a132aa6d66e4
Parent:
2:2ba230b24f25
Child:
4:265c30b9112a
--- a/Components/stspin220/stspin220_class.cpp	Wed Jul 27 12:00:06 2016 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,1528 +0,0 @@
-/**
-  ******************************************************************************
-  * @file    stspin220_class.cpp
-  * @author  IPC Rennes
-  * @version V1.0.0
-  * @date    July 27th, 2016
-  * @brief   STSPIN220 product related routines
-  * @note    (C) COPYRIGHT 2016 STMicroelectronics
-  ******************************************************************************
-  * @attention
-  *
-  * <h2><center>&copy; COPYRIGHT(c) 2016 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.
-  *
-  ******************************************************************************
-  */
-
-/* Includes ------------------------------------------------------------------*/
-#include "stspin220_class.h"
-
-/* Definitions ---------------------------------------------------------------*/
-
-/* Variables  ----------------------------------------------------------------*/
-/* Number of devices. */
-uint8_t STSPIN220::numberOfDevices = 0;
-
-/* Methods -------------------------------------------------------------------*/
-/******************************************************//**
- * @brief Start the STSPIN220 library
- * @param[in] pInit pointer to the initialization data
- * @retval COMPONENT_OK in case of success.
- **********************************************************/
-Status_t STSPIN220::Stspin220_Init(void* pInit)
-{ 
-  Stspin220_Disable();
-  if (pInit == NULL)
-  {
-    /* Set context variables to the predefined values from Stspin220_target_config.h */
-    /* Set GPIO according to these values */
-    Stspin220_SetDeviceParamsToPredefinedValues();
-  }
-  else
-  {
-    Stspin220_SetDeviceParamsToGivenValues((Stspin220_Init_t*) pInit);
-  }
-  Stspin220_Board_TimStckInit(false);
-  return COMPONENT_OK;
-}
-
-/**********************************************************
- * @brief Read id
- * @param id pointer to the identifier to be read.
- * @retval COMPONENT_OK in case of success.
- **********************************************************/
-Status_t STSPIN220::Stspin220_ReadID(uint8_t *id)
-{
-  *id = deviceInstance;
-
-  return COMPONENT_OK;
-}
-
-/**********************************************************
- * @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 STSPIN220::Stspin220_AttachErrorHandler(void (*callback)(uint16_t error))
-{
-  errorHandlerCallback = (void (*)(uint16_t error)) callback;
-}
-
-/******************************************************//**
- * @brief Apply the set torque
- * @param[in] torqueMode torque mode
- * @retval None
- * @note
- **********************************************************/
-void STSPIN220::Stspin220_ApplyTorque(motorTorqueMode_t torqueMode)
-{
-  uint8_t torqueValue = 0;
-  devicePrm.updateTorque = false;
-  switch(torqueMode)
-  {
-    case ACC_TORQUE:
-      devicePrm.currentTorque = devicePrm.accelTorque;
-      break;
-    case DEC_TORQUE:
-      devicePrm.currentTorque = devicePrm.decelTorque;
-      break;
-    case RUN_TORQUE:
-      devicePrm.currentTorque = devicePrm.runTorque;
-      break;
-    case HOLD_TORQUE:
-      devicePrm.currentTorque = devicePrm.holdTorque;
-      break;
-    case CURRENT_TORQUE:
-      break;
-    default:
-      return; //ignore error
-  }
-  torqueValue = devicePrm.currentTorque;
-  Stspin220_Board_PwmRefSetDutyCycle(torqueValue);
-}
-
-/******************************************************//**
- * @brief Disable the power bridges (leave the output bridges HiZ)
- * @retval None
- **********************************************************/
-void STSPIN220::Stspin220_Disable(void)
-{
-  Stspin220_Board_Disable();
-}
-
-/******************************************************//**
- * @brief Enable the power bridges
- * @retval None
- **********************************************************/
-void STSPIN220::Stspin220_Enable(void)
-{
-  Stspin220_Board_Enable();
-}
-
-/******************************************************//**
- * @brief Error handler which calls the user callback (if defined)
- * @param[in] error Number of the error
- * @retval None
- **********************************************************/
-void STSPIN220::Stspin220_ErrorHandler(uint16_t error)
-{
-  if (errorHandlerCallback != 0)
-  {
-    errorHandlerCallback(error);
-  }
-  else   
-  {
-    while(1)
-    {
-      /* Infinite loop */
-    }
-  }
-}
-
-/******************************************************//**
- * @brief Exit STSPIN220 device from standby (low power consumption)
- * @retval None
- **********************************************************/
-void STSPIN220::Stspin220_ExitDeviceFromStandby(void)
-{
-  uint32_t sequencerPosition = devicePrm.sequencerPosition;
-  
-  /* Exit standby and set step mode */
-  Stspin220_SetStepModeWithoutReset(devicePrm.stepMode);
-  
-  if (devicePrm.sequencerPosition != 0)
-  {
-    /* Set direction to FORWARD to ensure the HW sequencer is increased at */
-    /* each step clock rising edge */
-    Stspin220_SetDirection(FORWARD);
-    /* Going out of standby */
-    devicePrm.motionState = STANDBYTOINACTIVE;
-    /* Program the step clock */
-    Stspin220_Board_TimStckInit(true);
-    Stspin220_Board_TimStckSetFreq(STSPIN220_MAX_STCK_FREQ);
-    toggleOdd = 0;
-    while (devicePrm.sequencerPosition != 0);
-    while (toggleOdd!=0);
-    devicePrm.sequencerPosition = sequencerPosition;    
-  }
-  
-  devicePrm.motionState = INACTIVE;
-}
-
-/******************************************************//**
- * @brief Return the acceleration
- * @retval Acceleration in pps^2
- **********************************************************/
-uint16_t STSPIN220::Stspin220_GetAcceleration(void)
-{                                                  
-  return (devicePrm.acceleration);
-}
-
-/******************************************************//**
- * @brief Return the current speed
- * @retval Speed in pps
- **********************************************************/
-uint16_t STSPIN220::Stspin220_GetCurrentSpeed(void)
-{
-  return devicePrm.speed;
-}
-
-/******************************************************//**
- * @brief Return the deceleration
- * @retval Deceleration in pps^2
- **********************************************************/
-uint16_t STSPIN220::Stspin220_GetDeceleration(void)
-{
-  return (devicePrm.deceleration);
-}
-
-/******************************************************//**
- * @brief Return the device state
- * @retval State (ACCELERATING, DECELERATING, STEADY or INACTIVE)
- **********************************************************/
-motorState_t STSPIN220::Stspin220_GetDeviceState(void)
-{
-  return devicePrm.motionState;
-}
-
-/******************************************************//**
- * @brief Get the motor current direction
- * @retval direction
- **********************************************************/
-motorDir_t STSPIN220::Stspin220_GetDirection(void)
-{
-  return devicePrm.direction;
-}
-
-/******************************************************//**
- * @brief Return the FW version.
- * @retval FW version
- **********************************************************/
-uint32_t STSPIN220::Stspin220_GetFwVersion(void)
-{
-  return (STSPIN220_FW_VERSION);
-}
-
-/******************************************************//**
- * @brief Get the mark position (32b signed) 
- * @retval mark position
- **********************************************************/
-int32_t STSPIN220::Stspin220_GetMark(void)
-{
-  return devicePrm.markPosition;
-}
-
-/******************************************************//**
- * @brief Return the max speed
- * @retval maxSpeed in pps
- **********************************************************/
-uint16_t STSPIN220::Stspin220_GetMaxSpeed(void)
-{
-  return (devicePrm.maxSpeed);
-}
-
-/******************************************************//**
- * @brief Get the min speed
- * in step/s for full, half and wave modes
- * in microsteps/s for microstep modes
- * @retval return the min speed in step/s or microstep/s
- * @note
- **********************************************************/
-uint16_t STSPIN220::Stspin220_GetMinSpeed(void)
-{
-  return (devicePrm.minSpeed);
-}
-
-/******************************************************//**
- * @brief Get the current position (32b signed) 
- * @retval current position value
- **********************************************************/
-int32_t STSPIN220::Stspin220_GetPosition(void)
-{
-  return devicePrm.currentPosition;
-}
-
-/******************************************************//**
- * @brief Get the motor step mode
- * @retval step mode
- **********************************************************/
-motorStepMode_t STSPIN220::Stspin220_GetStepMode(void)
-{
-  return devicePrm.stepMode;
-}
-
-/******************************************************//**
- * @brief Get the selected stop mode
- * @retval the selected stop mode
- **********************************************************/
-motorStopMode_t STSPIN220::Stspin220_GetStopMode(void)
-{
-  return devicePrm.stopMode;
-}
-
-/******************************************************//**
- * @brief Get the torque
- * @param[in] torqueMode torque mode
- * @retval the torqueValue in % (from 0 to 100)
- * @note
- **********************************************************/
-uint8_t STSPIN220::Stspin220_GetTorque(motorTorqueMode_t torqueMode)
-{
-  uint8_t torqueValue = 0;
-  switch(torqueMode)
-  {
-    case ACC_TORQUE:
-      torqueValue = devicePrm.accelTorque;
-      break;
-    case DEC_TORQUE:
-      torqueValue = devicePrm.decelTorque;
-      break;
-    case RUN_TORQUE:
-      torqueValue = devicePrm.runTorque;
-      break;
-    case HOLD_TORQUE:
-      torqueValue = devicePrm.holdTorque;
-      break;
-    case CURRENT_TORQUE:
-      torqueValue = devicePrm.currentTorque;
-      break;
-    default:
-      break;
-  }
-  return torqueValue;
-}
-
-/******************************************************//**
- * @brief Get the torque boost feature status
- * @retval TRUE if enabled, FALSE if disabled
- **********************************************************/
-bool STSPIN220::Stspin220_GetTorqueBoostEnable(void)
-{
-  return devicePrm.torqueBoostEnable;
-}
-
-/******************************************************//**
- * @brief Get the torque boost threshold
- * @retval The torque boost threshold above which the step mode is
- * changed to full step
- **********************************************************/
-uint16_t STSPIN220::Stspin220_GetTorqueBoostThreshold(void)
-{
-  return devicePrm.torqueBoostSpeedThreshold;
-}
-
-/******************************************************//**
- * @brief Go to the home position
- * @retval None
- **********************************************************/
-void STSPIN220::Stspin220_GoHome(void)
-{
-  Stspin220_GoTo(0);
-}
-
-/******************************************************//**
- * @brief Go to the Mark position
- * @retval None
- **********************************************************/
-void STSPIN220::Stspin220_GoMark(void)
-{
-  Stspin220_GoTo(devicePrm.markPosition);
-}
-
-/******************************************************//**
- * @brief Request the motor to move to the specified position 
- * @param[in] targetPosition absolute position in steps
- * @retval None 
- * @note The position is at the resolution corresponding to the
- * selected step mode.
- * STEP_MODE_FULL                   : step
- * STEP_MODE_HALF                   : 1/2 step
- * STEP_MODE_1_4                    : 1/4 step
- * STEP_MODE_1_8                    : 1/8 step
- * STEP_MODE_1_16                   : 1/16 step
- * STEP_MODE_1_32                   : 1/32 step
- * STEP_MODE_1_64                   : 1/64 step
- * STEP_MODE_1_128                  : 1/128 step
- * STEP_MODE_1_256                  : 1/256 step
- **********************************************************/
-void STSPIN220::Stspin220_GoTo(int32_t targetPosition)
-{
-  motorDir_t direction;
-  
-  /* Exit from standby if needed */
-  if (devicePrm.motionState == STANDBY)
-  {
-    Stspin220_ExitDeviceFromStandby();
-  }
-  /* Deactivate motor if needed */
-  else if (devicePrm.motionState != INACTIVE)
-  { 
-    Stspin220_HardHiZ();
-  }
-  
-  if (targetPosition > devicePrm.currentPosition)
-  {
-    devicePrm.stepsToTake = targetPosition -\
-                                      devicePrm.currentPosition;
-    if (devicePrm.stepsToTake < (STSPIN220_POSITION_RANGE>>1))
-    {
-      direction = FORWARD;
-    }
-    else
-    {
-      direction = BACKWARD;
-      devicePrm.stepsToTake = STSPIN220_POSITION_RANGE -\
-                                        devicePrm.stepsToTake;
-    }
-  }
-  else
-  {
-    devicePrm.stepsToTake = devicePrm.currentPosition -\
-                                      targetPosition;
-    if (devicePrm.stepsToTake < (STSPIN220_POSITION_RANGE>>1))
-    {
-      direction = BACKWARD;
-    }
-    else
-    {
-      direction = FORWARD; 
-      devicePrm.stepsToTake = STSPIN220_POSITION_RANGE -\
-                                        devicePrm.stepsToTake;
-    }
-  }
-  
-  if (devicePrm.stepsToTake != 0) 
-  {
-    devicePrm.commandExecuted = MOVE_CMD;
-    
-    /* Direction setup */
-    Stspin220_SetDirection(direction);
-    
-    Stspin220_ComputeSpeedProfile(devicePrm.stepsToTake);
-    
-    /* Motor activation */
-    Stspin220_StartMovement();
-  }
-}
-
-/******************************************************//**
- * @brief Move the motor to the absolute position
- * @param[in] direction FORWARD or BACKWARD
- * @param[in] targetPosition 32 bit signed value position
- * @retval None
- * @note The position is at the resolution corresponding to the
- * selected step mode.
- * STEP_MODE_FULL                   : step
- * STEP_MODE_HALF                   : 1/2 step
- * STEP_MODE_1_4                    : 1/4 step
- * STEP_MODE_1_8                    : 1/8 step
- * STEP_MODE_1_16                   : 1/16 step
- * STEP_MODE_1_32                   : 1/32 step
- * STEP_MODE_1_64                   : 1/64 step
- * STEP_MODE_1_128                  : 1/128 step
- * STEP_MODE_1_256                  : 1/256 step
- **********************************************************/
-void STSPIN220::Stspin220_GoToDir(motorDir_t direction, int32_t targetPosition)
-{
-  /* Exit from standby if needed */
-  if (devicePrm.motionState == STANDBY)
-  {
-    Stspin220_ExitDeviceFromStandby();
-  }
-  /* Deactivate motor if needed */
-  else if (devicePrm.motionState != INACTIVE)
-  { 
-    Stspin220_HardHiZ();
-  }
-  
-  if (direction != BACKWARD)
-  {
-    if (targetPosition > devicePrm.currentPosition)
-    {
-      devicePrm.stepsToTake = targetPosition -\
-                                        devicePrm.currentPosition;
-    }
-    else
-    {
-      devicePrm.stepsToTake = STSPIN220_POSITION_RANGE +\
-                                       (targetPosition -\
-                                        devicePrm.currentPosition);
-    }
-  }
-  else
-  {
-    if (targetPosition > devicePrm.currentPosition)
-    {
-      devicePrm.stepsToTake = STSPIN220_POSITION_RANGE +\
-                                        (devicePrm.currentPosition -\
-                                         targetPosition);
-    }
-    else
-    {
-      devicePrm.stepsToTake = devicePrm.currentPosition -\
-                                        targetPosition;
-    }
-  }
-
-  if (devicePrm.stepsToTake != 0) 
-  {
-    devicePrm.commandExecuted = MOVE_CMD;
-    
-    /* Direction setup */
-    Stspin220_SetDirection(direction);
-    
-    Stspin220_ComputeSpeedProfile(devicePrm.stepsToTake);
-    
-    /* Motor activation */
-    Stspin220_StartMovement();
-  }  
-}
-
-/******************************************************//**
- * @brief Immediately stop the motor and disables the power bridges
- * @retval None
- **********************************************************/
-void STSPIN220::Stspin220_HardHiZ(void)
-{
-  /* Set inactive state */
-  devicePrm.motionState = INACTIVE;
-  
-  /* Disable step clock */
-  if (Stspin220_Board_TimStckStop(&toggleOdd) == 0)
-  {
-    Stspin220_ErrorHandler(STSPIN220_ERROR_STEP_CLOCK);
-  }
-
-  /* Let the PWM REF and bridges enabled at least for DISABLE_DELAY time */
-  /* after the last step clock rising edge triggering the last step */
-  Stspin220_Board_Delay(DISABLE_DELAY);
-  
-  /* Set reference voltage to 0 */
-  Stspin220_SetTorque(CURRENT_TORQUE, 0);
-
-  /* Disable power bridges */
-  Stspin220_Board_Disable();
-  
-  /* Comeback to nominal step mode */
-  if (devicePrm.stepModeLatched != devicePrm.stepMode)
-  {
-    Stspin220_Board_UnsetFullStep();
-    devicePrm.stepMode = devicePrm.stepModeLatched;
-  }
-
-  devicePrm.commandExecuted = NO_CMD;
-  devicePrm.stepsToTake = 0;  
-  devicePrm.speed = 0;
-}
-
-/******************************************************//**
- * @brief  Immediatly stop the motor
- * and either set holding torque when stop mode is HOLD_MODE,
- * or call Stspin220_HardHiz function when stop mode is HIZ_MODE,
- * or call Stspin220_PutDeviceInStandby function when stop mode is STANDBY_MODE
- * @retval None
- **********************************************************/
-void STSPIN220::Stspin220_HardStop(void) 
-{
-  if (devicePrm.stopMode == HOLD_MODE)
-  {
-    /* Set inactive state */
-    devicePrm.motionState = INACTIVE;
-
-    /* Disable step clock */
-    if (Stspin220_Board_TimStckStop(&toggleOdd) == 0)
-    {
-      Stspin220_ErrorHandler(STSPIN220_ERROR_STEP_CLOCK);
-    }
-    
-    /* Set holding torque */
-    Stspin220_ApplyTorque(HOLD_TORQUE);
- 
-    /* Comeback to nominal step mode */
-    if (devicePrm.stepModeLatched != devicePrm.stepMode)
-    {
-      Stspin220_Board_UnsetFullStep();
-      devicePrm.stepMode = devicePrm.stepModeLatched;
-    }    
-    
-    devicePrm.commandExecuted = NO_CMD;
-    devicePrm.stepsToTake = 0;  
-    devicePrm.speed = 0;
-  }
-  else if (devicePrm.stopMode == HIZ_MODE)
-  {
-    Stspin220_HardHiZ();
-  }
-  else if (devicePrm.stopMode == STANDBY_MODE)
-  {
-    Stspin220_PutDeviceInStandby();
-  }
-}
-
-/******************************************************//**
- * @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 STSPIN220::Stspin220_Move(motorDir_t direction, uint32_t stepCount)
-{
-  /* Exit from standby if needed */
-  if (devicePrm.motionState == STANDBY)
-  {
-    Stspin220_ExitDeviceFromStandby();
-  }
-  /* Deactivate motor if needed */
-  else if (devicePrm.motionState != INACTIVE)
-  {
-    Stspin220_HardHiZ();
-  }
-  
-  if (stepCount != 0) 
-  {
-    devicePrm.stepsToTake = stepCount;    
-    devicePrm.commandExecuted = MOVE_CMD;
-    
-    /* Direction setup */
-    Stspin220_SetDirection(direction);
-    
-    Stspin220_ComputeSpeedProfile(stepCount);
-    
-    /* Motor activation */
-    Stspin220_StartMovement();
-  }  
-}
-
-/******************************************************//**
- * @brief Put STSPIN220 device in standby (low power consumption)
- * @retval None
- **********************************************************/
-void STSPIN220::Stspin220_PutDeviceInStandby(void)
-{
-  /* Stop movement */
-  Stspin220_HardHiZ();
-  
-  /* Enter standby */
-  Stspin220_Board_Reset();
-  
-  devicePrm.motionState = STANDBY;
-}
-
-/******************************************************//**
- * @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 STSPIN220::Stspin220_Run(motorDir_t direction)
-{
-  /* Exit from standby if needed */
-  if (devicePrm.motionState == STANDBY)
-  {
-    Stspin220_ExitDeviceFromStandby();
-  }
-  /* Deactivate motor if needed */
-  else if (devicePrm.motionState != INACTIVE)
-  {
-    Stspin220_HardHiZ();
-  }
-  
-    /* Direction setup */
-    Stspin220_SetDirection(direction);
-    devicePrm.commandExecuted = RUN_CMD;
-    /* Motor activation */
-    Stspin220_StartMovement(); 
-}
-
-/******************************************************//**
- * @brief  Changes the acceleration
- * @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 if the device is executing 
- * a MOVE or GOTO command (but it can be used during a RUN command)
- **********************************************************/
-bool STSPIN220::Stspin220_SetAcceleration(uint16_t newAcc)
-{                                                  
-  bool cmdExecuted = false;
-  if ((newAcc != 0)&&
-      (((devicePrm.motionState & INACTIVE) == INACTIVE)||
-       (devicePrm.commandExecuted == RUN_CMD)))
-  {
-    devicePrm.acceleration = newAcc;
-    cmdExecuted = true;
-  }    
-  return cmdExecuted;
-}
-
-/******************************************************//**
- * @brief  Changes the deceleration
- * @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 if the device is executing 
- * a MOVE or GOTO command (but it can be used during a RUN command)
- **********************************************************/
-bool STSPIN220::Stspin220_SetDeceleration(uint16_t newDec)
-{                                                  
-  bool cmdExecuted = false;
-  if ((newDec != 0)&& 
-      (((devicePrm.motionState & INACTIVE) == INACTIVE)||
-       (devicePrm.commandExecuted == RUN_CMD)))
-  {
-    devicePrm.deceleration = newDec;
-    cmdExecuted = true;
-  }      
-  return cmdExecuted;
-}
-
-/******************************************************//**
- * @brief  Specifies the direction 
- * @param[in] dir FORWARD or BACKWARD
- * @note The direction change is applied if the device 
- * is in INACTIVE or STANDBY state or if the device is 
- * executing a run command
- * @retval None
- **********************************************************/
-void STSPIN220::Stspin220_SetDirection(motorDir_t dir)
-{
-  if ((devicePrm.motionState == INACTIVE)||\
-      (devicePrm.motionState == STANDBY))
-  {
-    devicePrm.direction = dir;
-    Stspin220_Board_SetDirectionGpio(dir);
-  }
-  else if ((devicePrm.commandExecuted&RUN_CMD)!=0)
-  {
-    devicePrm.commandExecuted=(deviceCommand_t)
-      (STSPIN220_DIR_CHANGE_BIT_MASK|devicePrm.commandExecuted);
-  }
-}
-
-/******************************************************//**
- * @brief  Set current position to be the Home position
- * (current position set to 0)
- * @retval None
- **********************************************************/
-void STSPIN220::Stspin220_SetHome(void)
-{
-  devicePrm.currentPosition = 0;
-}
-
-/******************************************************//**
- * @brief  Set current position to be the Mark position 
- * @retval None
- **********************************************************/
-void STSPIN220::Stspin220_SetMark(void)
-{
-  devicePrm.markPosition = devicePrm.currentPosition;
-}
-
-/******************************************************//**
- * @brief  Changes the max speed
- * @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 STSPIN220::Stspin220_SetMaxSpeed(uint16_t newMaxSpeed)
-{
-  bool cmdExecuted = false;
-  if ((newMaxSpeed >= STSPIN220_MIN_STCK_FREQ)&&\
-      ((newMaxSpeed <= STSPIN220_MAX_STCK_FREQ)||\
-       ((devicePrm.torqueBoostEnable != false)&&\
-        ((newMaxSpeed>>Stspin220_GetStepMode())<= STSPIN220_MAX_STCK_FREQ)))&&\
-      (devicePrm.minSpeed <= newMaxSpeed) &&\
-      (((devicePrm.motionState & INACTIVE) == INACTIVE)||\
-      (devicePrm.commandExecuted == RUN_CMD)))
-  {
-    devicePrm.maxSpeed = newMaxSpeed;
-    cmdExecuted = true;
-  }
-  return cmdExecuted;
-}
-
-/******************************************************//**
- * @brief  Changes the min speed
- * @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 STSPIN220::Stspin220_SetMinSpeed(uint16_t newMinSpeed)
-{                                                  
-  bool cmdExecuted = false;
-  if ((newMinSpeed >= STSPIN220_MIN_STCK_FREQ)&&
-      (newMinSpeed <= STSPIN220_MAX_STCK_FREQ) &&
-      (newMinSpeed <= devicePrm.maxSpeed) && 
-      (((devicePrm.motionState & INACTIVE) == INACTIVE)||
-       (devicePrm.commandExecuted == RUN_CMD)))
-  {
-    devicePrm.minSpeed = newMinSpeed;
-    cmdExecuted = true;
-  }  
-  return cmdExecuted;
-}
-
-/******************************************************//**
- * @brief Set the stepping mode 
- * @param[in] stepMode from full step to 1/256 microstep
- * as specified in enum motorStepMode_t
- * @retval true if the command is successfully executed, else false
- **********************************************************/
-bool STSPIN220::Stspin220_SetStepMode(motorStepMode_t stepMode)
-{
-  /* Eventually deactivate motor */
-  if ((devicePrm.motionState != INACTIVE)&&\
-      (devicePrm.motionState != STANDBY))
-  {
-    Stspin220_HardHiZ();
-  }
-
-  /* Enter standby */
-  Stspin220_Board_Reset();
-  
-  /* Reset the microstepping sequencer position */
-  devicePrm.sequencerPosition = 0;
-  
-  /* Reset current and mark positions */
-  devicePrm.currentPosition = 0; 
-  devicePrm.markPosition = 0;
-  
-  /* Set the step mode */
-  return (Stspin220_SetStepModeWithoutReset(stepMode));
-}
-
-/******************************************************//**
- * @brief Select the mode to stop the motor.
- * @param[in] stopMode HOLD_MODE to let power bridge enabled
- * @retval None
- **********************************************************/
-void STSPIN220::Stspin220_SetStopMode(motorStopMode_t stopMode)
-{
-  devicePrm.stopMode = stopMode;
-}
-
-/******************************************************//**
- * @brief Set the torque
- * @param[in] torqueMode Torque mode as specified in enum motorTorqueMode_t
- * @param[in] torqueValue in % (from 0 to 100)
- * @retval None
- * @note
- **********************************************************/
-void STSPIN220::Stspin220_SetTorque(motorTorqueMode_t torqueMode, uint8_t torqueValue)
-{
-  devicePrm.updateTorque = true;
-  if (torqueValue>100) torqueValue = 100;
-  switch(torqueMode)
-  {
-    case ACC_TORQUE:
-      devicePrm.accelTorque = torqueValue;
-      break;
-    case DEC_TORQUE:
-      devicePrm.decelTorque = torqueValue;
-      break;
-    case RUN_TORQUE:
-      devicePrm.runTorque = torqueValue;
-      break;
-    case HOLD_TORQUE:
-      devicePrm.holdTorque = torqueValue;
-      if (devicePrm.motionState != INACTIVE)
-      {
-        break;
-      }
-    case CURRENT_TORQUE:
-      devicePrm.currentTorque = torqueValue;
-      Stspin220_Board_PwmRefSetDutyCycle(torqueValue);
-    default:
-      devicePrm.updateTorque = false;
-      break; //ignore error
-  }
-}
-
-/******************************************************//**
- * @brief Enable or disable the torque boost feature
- * @param[in] enable true to enable torque boost, false to disable
- * @retval None
- **********************************************************/
-void STSPIN220::Stspin220_SetTorqueBoostEnable(bool enable)
-{
-  devicePrm.torqueBoostEnable = enable;
-}
-
-/******************************************************//**
- * @brief Set the torque boost threshold
- * @param[in] speedThreshold speed threshold above which the step mode is
- * changed to full step
- * @retval None
- **********************************************************/
-void STSPIN220::Stspin220_SetTorqueBoostThreshold(uint16_t speedThreshold)
-{
-  devicePrm.torqueBoostSpeedThreshold = speedThreshold;
-}
-
-/******************************************************//**
- * @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 if the device is in INACTIVE,
- * STANDBYTOINACTIVE or STANDBY state.
- **********************************************************/
-bool STSPIN220::Stspin220_SoftStop(void)
-{   
-  bool cmdExecuted = false;
-  if ((devicePrm.motionState & INACTIVE) != INACTIVE)
-  {
-    devicePrm.commandExecuted=(deviceCommand_t)
-      (STSPIN220_SOFT_STOP_BIT_MASK|devicePrm.commandExecuted);
-    cmdExecuted = true;
-  }
-  return (cmdExecuted);
-}
-
-/******************************************************//**
- * @brief Get the frequency of REF PWM
- * @retval the frequency of REF PWM in Hz
- * @note
- **********************************************************/
-uint32_t STSPIN220::Stspin220_VrefPwmGetFreq(void)
-{
-  return devicePrm.refPwmFreq;
-}
-
-/******************************************************//**
- * @brief Set the frequency of REF PWM
- * @param[in] newFreq in Hz
- * @retval None
- * @note
- **********************************************************/
-void STSPIN220::Stspin220_VrefPwmSetFreq(uint32_t newFreq)
-{ 
-  devicePrm.refPwmFreq = newFreq;
-  Stspin220_Board_PwmRefSetFreq(newFreq);
-}
-
-/******************************************************//**
- * @brief  Locks until the device state becomes Inactive
- * @retval None
- **********************************************************/
-void STSPIN220::Stspin220_WaitWhileActive(void)
-{
-  /* Wait while motor is running */
-  while (((Stspin220_GetDeviceState()&INACTIVE)!=INACTIVE)||\
-   (((Stspin220_GetDeviceState()&INACTIVE)==INACTIVE)&&(toggleOdd!=0)));
-}
-
-/* ------------------------------------------------------------------------- */
-/* Internal functions ------------------------------------------------------ */
-/* ------------------------------------------------------------------------- */
-/******************************************************//**
- * @brief Updates the current speed of the device
- * @param[in] newSpeed in pps
- * @retval None
- **********************************************************/
-void STSPIN220::Stspin220_ApplySpeed(uint16_t newSpeed)
-{
-  if (devicePrm.torqueBoostEnable != false)
-  {
-    if (devicePrm.stepMode > (motorStepMode_t)STEP_MODE_1_256)
-    {
-      Stspin220_ErrorHandler(STSPIN220_ERROR_APPLY_SPEED);
-    }
-    if (devicePrm.stepMode != (motorStepMode_t)STEP_MODE_FULL)
-    {
-      if (((newSpeed>>devicePrm.stepModeLatched)>\
-           devicePrm.torqueBoostSpeedThreshold)&&\
-          (((devicePrm.commandExecuted & STSPIN220_MOVE_BIT_MASK) != MOVE_CMD) ||\
-           ((devicePrm.stepsToTake-devicePrm.relativePos)>=\
-            (1<<devicePrm.stepModeLatched))))
-      {
-        if ((devicePrm.sequencerPosition & 0xFF) == 0X80)
-        {
-          Stspin220_Board_SetFullStep();
-          devicePrm.stepMode = (motorStepMode_t)STEP_MODE_FULL;
-          devicePrm.accu >>= devicePrm.stepModeLatched;
-          newSpeed >>= devicePrm.stepModeLatched;
-        }
-      }
-    }
-    else if (((newSpeed <= devicePrm.torqueBoostSpeedThreshold) &&\
-              (devicePrm.stepModeLatched != (motorStepMode_t)STEP_MODE_FULL))||\
-             (((devicePrm.commandExecuted & STSPIN220_MOVE_BIT_MASK) == MOVE_CMD)&&\
-               ((devicePrm.stepsToTake-devicePrm.relativePos)<=\
-                (1<<devicePrm.stepModeLatched))))
-    {
-      Stspin220_Board_UnsetFullStep();
-      devicePrm.stepMode = devicePrm.stepModeLatched;
-      devicePrm.accu <<= devicePrm.stepModeLatched;
-      newSpeed <<= devicePrm.stepModeLatched;
-    }
-  }
-  else if (devicePrm.stepMode != devicePrm.stepModeLatched)
-  {
-    //torqueBoostEnable has just been disabled
-    Stspin220_Board_UnsetFullStep();
-    devicePrm.stepMode = devicePrm.stepModeLatched;
-    devicePrm.accu <<= devicePrm.stepModeLatched;
-    newSpeed <<= devicePrm.stepModeLatched;
-  }
-  
-  if (newSpeed < STSPIN220_MIN_STCK_FREQ)
-  {
-    newSpeed = STSPIN220_MIN_STCK_FREQ;  
-  }
-  if (newSpeed > STSPIN220_MAX_STCK_FREQ)
-  {
-    newSpeed = STSPIN220_MAX_STCK_FREQ;
-  }
-  
-  devicePrm.speed = newSpeed;
-  Stspin220_Board_TimStckSetFreq(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 STSPIN220::Stspin220_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  Set the parameters of the device whose values are not defined in
- * stspin220_target_config.h
- * @retval None
- **********************************************************/
-void STSPIN220::Stspin220_SetDeviceParamsOtherValues(void)
-{
-  uint16_t tmp;
-
-  devicePrm.accu = 0;
-  devicePrm.currentPosition = 0;
-  devicePrm.sequencerPosition = 0;
-  devicePrm.endAccPos = 0;
-  devicePrm.relativePos = 0;
-  devicePrm.startDecPos = 0;
-  devicePrm.stepsToTake = 0;
-  devicePrm.updateTorque = false;
-  devicePrm.speed = 0;
-  devicePrm.commandExecuted = NO_CMD;
-  devicePrm.direction = FORWARD;
-  tmp = devicePrm.minSpeed;
-  if (((devicePrm.torqueBoostEnable != false)&&\
-       (devicePrm.torqueBoostSpeedThreshold>STSPIN220_MAX_STCK_FREQ))||\
-      (tmp>devicePrm.maxSpeed))
-  {
-    Stspin220_ErrorHandler(STSPIN220_ERROR_INIT);
-  }
-}
-
-/******************************************************//**
- * @brief  Set the parameters of the device to values of the structure pointed
- * by pInitDevicePrm. Set GPIO according to these values.
- * @param pInitDevicePrm pointer onto the structure containing values to
- * initialize the device parameters.
- * @retval None
- **********************************************************/
-void STSPIN220::Stspin220_SetDeviceParamsToGivenValues(Stspin220_Init_t* pInitDevicePrm)
-{
-  devicePrm.motionState = STANDBY;
-
-  if (Stspin220_SetAcceleration(pInitDevicePrm->acceleration)==false) Stspin220_ErrorHandler(STSPIN220_ERROR_SET_ACCELERATION); 
-  if (Stspin220_SetDeceleration(pInitDevicePrm->deceleration)==false) Stspin220_ErrorHandler(STSPIN220_ERROR_SET_DECELERATION);
-  if (Stspin220_SetMaxSpeed(pInitDevicePrm->maxSpeed)==false) Stspin220_ErrorHandler(STSPIN220_ERROR_SET_MAX_SPEED);
-  if (Stspin220_SetMinSpeed(pInitDevicePrm->minSpeed)==false) Stspin220_ErrorHandler(STSPIN220_ERROR_SET_MIN_SPEED);
-
-  Stspin220_VrefPwmSetFreq(pInitDevicePrm->vrefPwmFreq);
-  Stspin220_SetTorque(ACC_TORQUE,pInitDevicePrm->accelTorque);
-  Stspin220_SetTorque(DEC_TORQUE,pInitDevicePrm->decelTorque);
-  Stspin220_SetTorque(RUN_TORQUE,pInitDevicePrm->runTorque);
-  Stspin220_SetTorque(HOLD_TORQUE,pInitDevicePrm->holdTorque);
-  devicePrm.torqueBoostEnable = pInitDevicePrm->torqueBoostEnable;
-  devicePrm.torqueBoostSpeedThreshold = pInitDevicePrm->torqueBoostSpeedThreshold;
-  Stspin220_SetStopMode(pInitDevicePrm->stopMode);
-
-  Stspin220_SetDeviceParamsOtherValues();
-  
-  /* Set predefined step mode */
-  /* Standby-reset deactivation included to latch the MODEX inputs */
-  Stspin220_SetStepMode(pInitDevicePrm->stepMode);
-}
-
-/******************************************************//**
- * @brief  Sets the parameters of the device to predefined values
- * from stspin220_target_config.h
- * @retval None
- **********************************************************/
-void STSPIN220::Stspin220_SetDeviceParamsToPredefinedValues(void)
-{
-  devicePrm.motionState = STANDBY;
-
-  if (Stspin220_SetAcceleration(STSPIN220_CONF_PARAM_ACC)==false) Stspin220_ErrorHandler(STSPIN220_ERROR_SET_ACCELERATION);
-  if (Stspin220_SetDeceleration(STSPIN220_CONF_PARAM_DEC)==false) Stspin220_ErrorHandler(STSPIN220_ERROR_SET_DECELERATION);
-  if (Stspin220_SetMaxSpeed(STSPIN220_CONF_PARAM_RUNNING_SPEED)==false) Stspin220_ErrorHandler(STSPIN220_ERROR_SET_MAX_SPEED);
-  if (Stspin220_SetMinSpeed(STSPIN220_CONF_PARAM_MIN_SPEED)==false) Stspin220_ErrorHandler(STSPIN220_ERROR_SET_MIN_SPEED);
-
-  Stspin220_VrefPwmSetFreq(STSPIN220_CONF_PARAM_REF_PWM_FREQUENCY);  
-  Stspin220_SetTorque(ACC_TORQUE,STSPIN220_CONF_PARAM_ACC_TORQUE);
-  Stspin220_SetTorque(DEC_TORQUE,STSPIN220_CONF_PARAM_DEC_TORQUE);
-  Stspin220_SetTorque(RUN_TORQUE,STSPIN220_CONF_PARAM_RUNNING_TORQUE);
-  Stspin220_SetTorque(HOLD_TORQUE,STSPIN220_CONF_PARAM_HOLDING_TORQUE);
-  devicePrm.torqueBoostEnable = STSPIN220_CONF_PARAM_TORQUE_BOOST_EN;
-  devicePrm.torqueBoostSpeedThreshold = STSPIN220_CONF_PARAM_TORQUE_BOOST_TH;
-  Stspin220_SetStopMode(STSPIN220_CONF_PARAM_AUTO_HIZ_STOP);
-
-  Stspin220_SetDeviceParamsOtherValues();
-  
-  /* Set predefined step mode */
-  /* Standby-reset deactivation included to latch the MODEX inputs */
-  Stspin220_SetStepMode((motorStepMode_t)STSPIN220_CONF_PARAM_STEP_MODE);
-}
-
-/******************************************************//**
- * @brief Set the stepping mode without reset
- * @param[in] stepMode from full step to 1/256 microstep
- * as specified in enum motorStepMode_t
- * @retval true if the command is successfully executed, else false
- **********************************************************/
-bool STSPIN220::Stspin220_SetStepModeWithoutReset(motorStepMode_t stepMode)
-{
-  /* Store step mode */
-  devicePrm.stepMode = stepMode;
-  devicePrm.stepModeLatched = stepMode;
-  
-  /* Set the mode pins to the levels corresponding to the selected step mode */
-  switch (stepMode)
-  {
-    case STEP_MODE_FULL:
-      Stspin220_Board_SetFullStep();
-      break;
-    case STEP_MODE_HALF:
-      Stspin220_Board_SetModePins(1, 0, 1, 0);
-      break;    
-    case STEP_MODE_1_4:
-      Stspin220_Board_SetModePins(0, 1, 0, 1);
-      break;        
-    case STEP_MODE_1_8:
-      Stspin220_Board_SetModePins(1, 1, 1, 0);
-      break;
-    case STEP_MODE_1_16:
-      Stspin220_Board_SetModePins(1, 1, 1, 1);
-      break;   
-    case STEP_MODE_1_32:
-      Stspin220_Board_SetModePins(0, 0, 0, 1);
-      break;   
-    case STEP_MODE_1_64:
-      Stspin220_Board_SetModePins(1, 1, 0, 1);
-      break;
-    case STEP_MODE_1_128:
-      Stspin220_Board_SetModePins(0, 0, 1, 0);
-      break;  
-    case STEP_MODE_1_256:
-      Stspin220_Board_SetModePins(1, 1, 0, 0);
-      break;
-    default:
-      return false;
-  }
-
-  /* Wait */
-  Stspin220_Board_Delay(SELECT_STEP_MODE_DELAY);
-  
-  /* Exit standby, selected step mode is latched */
-  Stspin220_Board_ReleaseReset();
-  
-  /* Let a delay after reset release and step mode latching*/
-  Stspin220_Board_Delay(AFTER_STANDBY_EXIT_DEAD_TIME);
-  
-  /* If full step mode is not selected, do not keep MODE1 = MODE2 = 0 */
-  /* after the device quit the standby condition */
-  if (stepMode!=(motorStepMode_t)STEP_MODE_FULL)
-  {
-    Stspin220_Board_UnsetFullStep();
-  }
-  
-  return true;
-}
-
-/******************************************************//**
- * @brief Initialises the bridge parameters to start the movement
- * and enable the power bridge
- * @retval None
- **********************************************************/
-void STSPIN220::Stspin220_StartMovement(void)
-{
-  /* Enable STSPIN220 powerstage */
-  Stspin220_Enable();
-  toggleOdd = 0;
-  devicePrm.accu = 0;
-  devicePrm.relativePos = 0;
-  Stspin220_Board_TimStckInit(true);  
-  if ((devicePrm.endAccPos == 0)&&\
-      (devicePrm.commandExecuted != RUN_CMD))
-  {
-    devicePrm.motionState = DECELERATING;
-    Stspin220_Board_PwmRefStart(devicePrm.refPwmFreq, DEC_TORQUE);
-  }
-  else
-  {
-    devicePrm.motionState = ACCELERATING;
-    Stspin220_Board_PwmRefStart(devicePrm.refPwmFreq, ACC_TORQUE);
-  }
-  /* Program the step clock */
-  Stspin220_ApplySpeed(devicePrm.minSpeed);
-}
-
-/******************************************************//**
- * @brief  Handles the device state machine at each pulse
- * @retval None
- * @note Must only be called by the timer ISR
- **********************************************************/
-void STSPIN220::Stspin220_StepClockHandler(void)
-{
-  uint32_t stepModeShift = devicePrm.stepModeLatched - devicePrm.stepMode;
-  uint16_t tmp;
-  Stspin220_Board_Monitor_Set();
-  if (devicePrm.motionState == STANDBYTOINACTIVE)
-  {
-    if (toggleOdd != 0)
-    {
-      Stspin220_Board_StckMode3_Reset();
-      toggleOdd = 0;
-      if (devicePrm.sequencerPosition == 0)
-      {
-        if (Stspin220_Board_TimStckStop(&toggleOdd) == 0)
-        {
-          Stspin220_ErrorHandler(STSPIN220_ERROR_STEP_CLOCK);
-        }
-        return;
-      }      
-    }
-    else
-    {
-      Stspin220_Board_StckMode3_Set();
-      toggleOdd = 1;
-      tmp = (1 << ((motorStepMode_t)STEP_MODE_1_256-devicePrm.stepMode));
-      devicePrm.sequencerPosition -= tmp;
-    }
-    Stspin220_Board_TimStckSetFreq(STSPIN220_MAX_STCK_FREQ);
-    return;
-  }  
-  
-  if (toggleOdd == 0)
-  {
-    Stspin220_Board_StckMode3_Set();
-    toggleOdd = 1;
-  }
-  else
-  {
-    Stspin220_Board_StckMode3_Reset();
-    toggleOdd = 0;
-    /* Incrementation of the relative position */
-    devicePrm.relativePos += (1 << stepModeShift);
-
-    /* Incrementation of the current position */
-    if (devicePrm.direction != BACKWARD)
-    {
-      devicePrm.currentPosition += (1 << stepModeShift);
-      tmp = (1 << ((motorStepMode_t)STEP_MODE_1_256-devicePrm.stepMode));
-      devicePrm.sequencerPosition += tmp;
-      if (devicePrm.sequencerPosition >= (SEQUENCER_MAX_VALUE+1))
-      {
-        devicePrm.sequencerPosition -= (SEQUENCER_MAX_VALUE+1);
-      }
-    }
-    else
-    {
-      devicePrm.currentPosition -= (1 << stepModeShift);
-      tmp = (1 << ((motorStepMode_t)STEP_MODE_1_256-devicePrm.stepMode));
-      devicePrm.sequencerPosition -= tmp;
-      if (devicePrm.sequencerPosition < 0)
-      {
-        devicePrm.sequencerPosition += (SEQUENCER_MAX_VALUE+1);
-      }
-    }
-
-    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)>>stepModeShift;
-        
-          if (((devicePrm.commandExecuted&(STSPIN220_SOFT_STOP_BIT_MASK|STSPIN220_DIR_CHANGE_BIT_MASK))!=0)||\
-              ((devicePrm.commandExecuted==MOVE_CMD)&&(relPos>=devicePrm.startDecPos)))
-          {
-            devicePrm.motionState = DECELERATING;
-            devicePrm.accu = 0;
-            /* Apply decelerating torque */
-            Stspin220_ApplyTorque(DEC_TORQUE);
-          }
-          else if ((speed>=(devicePrm.maxSpeed>>stepModeShift))||\
-                   ((devicePrm.commandExecuted==MOVE_CMD)&&(relPos >= endAccPos)))
-          {
-            devicePrm.motionState = STEADY;
-            /* Apply running torque */
-            Stspin220_ApplyTorque(RUN_TORQUE);
-          }
-          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>>stepModeShift))
-              {
-                speed = devicePrm.maxSpeed>>stepModeShift;
-              }    
-              devicePrm.speed = speed;
-            }
-            
-            if (devicePrm.updateTorque!=false)
-            {
-              /* Apply accelerating torque */
-              Stspin220_ApplyTorque(ACC_TORQUE);              
-            }
-          }
-          break;
-      }
-      case STEADY: 
-      {
-        uint16_t maxSpeed = devicePrm.maxSpeed>>stepModeShift;
-        uint32_t relativePos = devicePrm.relativePos;
-        if (devicePrm.updateTorque!=false)
-        {
-          /* Apply accelerating torque */
-          Stspin220_ApplyTorque(RUN_TORQUE);
-        }
-        if  (((devicePrm.commandExecuted&(STSPIN220_SOFT_STOP_BIT_MASK|STSPIN220_DIR_CHANGE_BIT_MASK))!=0)||\
-             ((devicePrm.commandExecuted==MOVE_CMD)&&\
-              (relativePos>=(devicePrm.startDecPos)))||\
-             ((devicePrm.commandExecuted==RUN_CMD)&&\
-              (devicePrm.speed>maxSpeed)))
-        {
-          devicePrm.motionState = DECELERATING;
-          devicePrm.accu = 0;
-          /* Apply decelerating torque */
-          Stspin220_ApplyTorque(DEC_TORQUE);
-        }
-        else if ((devicePrm.commandExecuted==RUN_CMD)&&(devicePrm.speed<maxSpeed))
-        {
-          devicePrm.motionState = ACCELERATING;
-          devicePrm.accu = 0;
-          /* Apply accelerating torque */
-          Stspin220_ApplyTorque(ACC_TORQUE);
-        }
-        break;
-      }
-      case DECELERATING: 
-      {
-        uint32_t relativePos = devicePrm.relativePos;
-        uint16_t speed = devicePrm.speed;
-        uint32_t dec = ((uint32_t)devicePrm.deceleration << 16)>>stepModeShift;
-        if ((((devicePrm.commandExecuted&(STSPIN220_SOFT_STOP_BIT_MASK|STSPIN220_DIR_CHANGE_BIT_MASK))!=0)&&\
-             (speed<=(devicePrm.minSpeed>>stepModeShift)))||\
-            ((devicePrm.commandExecuted==MOVE_CMD)&&(relativePos>=devicePrm.stepsToTake)))
-        {
-          /* Motion process complete */
-          if ((devicePrm.commandExecuted&STSPIN220_DIR_CHANGE_BIT_MASK)!=0)
-          {
-            devicePrm.commandExecuted=(deviceCommand_t)((~STSPIN220_DIR_CHANGE_BIT_MASK)&devicePrm.commandExecuted);
-            if (devicePrm.direction==BACKWARD) devicePrm.direction=FORWARD;
-            else devicePrm.direction=BACKWARD;
-            Stspin220_Board_SetDirectionGpio(devicePrm.direction);
-            if ((devicePrm.commandExecuted&STSPIN220_SOFT_STOP_BIT_MASK)==0)
-            {
-              devicePrm.motionState = ACCELERATING;
-              devicePrm.accu = 0;
-              /* Apply accelerating torque */
-              Stspin220_ApplyTorque(ACC_TORQUE);
-              break;
-            }
-          }
-          if (devicePrm.stopMode==HOLD_MODE)
-          {
-            Stspin220_HardStop();
-          }
-          else if (devicePrm.stopMode==STANDBY_MODE)
-          {
-            Stspin220_PutDeviceInStandby();
-          }
-          else
-          {
-            Stspin220_HardHiZ();
-          }
-        }
-        else if ((devicePrm.commandExecuted==RUN_CMD)&&
-                 (speed<=(devicePrm.maxSpeed>>stepModeShift)))
-        {
-          devicePrm.motionState = STEADY;
-          /* Apply running torque */
-          Stspin220_ApplyTorque(RUN_TORQUE);
-        }
-        else
-        {
-          /* Go on decelerating */
-          if (speed>(devicePrm.minSpeed>>stepModeShift))
-          {
-            bool speedUpdated = false;
-            if (speed==0) speed =1;
-            devicePrm.accu += dec / speed;
-            while (devicePrm.accu>=(0X10000L))
-            {
-              devicePrm.accu -= (0X10000L);
-              if (speed>1)
-              {  
-                speed -=1;
-              }
-              speedUpdated = true;
-            }
-          
-            if (speedUpdated)
-            {
-              if (speed<(devicePrm.minSpeed>>stepModeShift))
-              {
-                speed = devicePrm.minSpeed>>stepModeShift;
-              }  
-              devicePrm.speed = speed;
-            }
-            
-            if (devicePrm.updateTorque!=false)
-            {
-              /* Apply decelerating torque */
-              Stspin220_ApplyTorque(DEC_TORQUE);
-            }
-          }
-        }
-        break;
-      }
-      default: 
-      {
-        break;
-      }
-    }
-  }
-  if ((devicePrm.motionState & INACTIVE) != INACTIVE)
-  {
-    Stspin220_ApplySpeed(devicePrm.speed);
-  }
-  else
-  {
-    if (Stspin220_Board_TimStckStop(&toggleOdd) == 0)
-    {
-      Stspin220_ErrorHandler(STSPIN220_ERROR_STEP_CLOCK);
-    }
-  }
-  Stspin220_Board_Monitor_Reset();
-}
-
-/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/