Diff: targets/cmsis/TARGET_STM/TARGET_STM32L1/stm32l1xx_hal_lcd.c

Revision:

144:ef7eb2e8f9f7

Parent:

0:9b334a45a8ff

--- a/targets/cmsis/TARGET_STM/TARGET_STM32L1/stm32l1xx_hal_lcd.c	Tue Aug 02 14:07:36 2016 +0000
+++ b/targets/cmsis/TARGET_STM/TARGET_STM32L1/stm32l1xx_hal_lcd.c	Fri Sep 02 15:07:44 2016 +0100
@@ -1,610 +1,633 @@
-/**
-  ******************************************************************************
-  * @file    stm32l1xx_hal_lcd.c
-  * @author  MCD Application Team
-  * @version V1.0.0
-  * @date    5-September-2014
-  * @brief   LCD Controller HAL module driver.
-  *          This file provides firmware functions to manage the following 
-  *          functionalities of the LCD Controller (LCD) peripheral:
-  *           + Initialization/de-initialization methods
-  *           + I/O operation methods
-  *           + Peripheral State methods
-  *           
-  @verbatim
-  ==============================================================================
-                        ##### How to use this driver #####
-  ==============================================================================   
-      [..] The LCD HAL driver can be used as follows:
-    
-      (#) Declare a LCD_HandleTypeDef handle structure.
-
-      (#) Initialize the LCD low level resources by implement the HAL_LCD_MspInit() API:
-          (##) Enable the LCDCLK (same as RTCCLK): to configure the RTCCLK/LCDCLK, proceed as follows:
-               (+) Use RCC function HAL_RCCEx_PeriphCLKConfig in indicating RCC_PERIPHCLK_LCD and 
-                  selected clock source (HSE, LSI or LSE)
-             
-      -@- The frequency generator allows you to achieve various LCD frame rates 
-            starting from an LCD input clock frequency (LCDCLK) which can vary 
-            from 32 kHz up to 1 MHz.
-          (##) LCD pins configuration:
-              (+) Enable the clock for the LCD GPIOs.
-              (+) Configure these LCD pins as alternate function no-pull.
-          (##) Enable the LCD interface clock.
-
-      (#) Program the Prescaler, Divider, Blink mode, Blink Frequency Duty, Bias,
-           Voltage Source, Dead Time, Pulse On Duration and Contrast in the hlcd Init structure.
-
-      (#) Initialize the LCD registers by calling the HAL_LCD_Init() API.
-
-      -@- The HAL_LCD_Init() API configures also the low level Hardware GPIO, CLOCK, ...etc)
-          by calling the custumed HAL_LCD_MspInit() API.
-      -@- After calling the HAL_LCD_Init() the LCD RAM memory is cleared
-
-      (#) Optionally you can update the LCD configuration using these macros:
-              (+) LCD High Drive using the __HAL_LCD_HIGHDRIVER_ENABLE() and __HAL_LCD_HIGHDRIVER_DISABLE() macros
-              (+) LCD Pulse ON Duration using the __HAL_LCD_PULSEONDURATION_CONFIG() macro
-              (+) LCD Dead Time using the __HAL_LCD_DEADTIME_CONFIG() macro  
-              (+) The LCD Blink mode and frequency using the __HAL_LCD_BLINK_CONFIG() macro
-              (+) The LCD Contrast using the __HAL_LCD_CONTRAST_CONFIG() macro  
-
-      (#) Write to the LCD RAM memory using the HAL_LCD_Write() API, this API can be called
-          more time to update the different LCD RAM registers before calling 
-          HAL_LCD_UpdateDisplayRequest() API.
-
-      (#) The HAL_LCD_Clear() API can be used to clear the LCD RAM memory.
-
-      (#) When LCD RAM memory is updated enable the update display request using
-          the HAL_LCD_UpdateDisplayRequest() API.
-
-      [..] LCD and low power modes:
-           (#) The LCD remain active during STOP mode.
-
-  @endverbatim
-  ******************************************************************************
-  * @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.
-  *
-  ******************************************************************************
-  */
-
-/* Includes ------------------------------------------------------------------*/
-#include "stm32l1xx_hal.h"
-
-/** @addtogroup STM32L1xx_HAL_Driver
-  * @{
-  */
-
-#ifdef HAL_LCD_MODULE_ENABLED
-
-#if defined (STM32L100xB) || defined (STM32L100xBA) || defined (STM32L100xC) ||\
-    defined (STM32L152xB) || defined (STM32L152xBA) || defined (STM32L152xC) || defined (STM32L152xCA) || defined (STM32L152xD) || defined (STM32L152xE) ||\
-    defined (STM32L162xC) || defined (STM32L162xCA) || defined (STM32L162xD) || defined (STM32L162xE)
-
-/** @defgroup LCD LCD
-  * @brief LCD HAL module driver
-  * @{
-  */
-
-/* Private typedef -----------------------------------------------------------*/
-/* Private define ------------------------------------------------------------*/
-/** @defgroup LCD_Private_Defines LCD Private Defines
-  * @{
-  */
-
-#define LCD_TIMEOUT_VALUE             1000
-
-/**
-  * @}
-  */
-
-/* Private macro -------------------------------------------------------------*/
-/* Private variables ---------------------------------------------------------*/
-/* Private function prototypes -----------------------------------------------*/
-/* Private functions ---------------------------------------------------------*/
-
-/** @defgroup LCD_Exported_Functions LCD Exported Functions
-  * @{
-  */
-
-/** @defgroup LCD_Exported_Functions_Group1 Initialization/de-initialization methods 
-  *  @brief    Initialization and Configuration functions 
-  *
-@verbatim    
-===============================================================================
-            ##### Initialization and Configuration functions #####
- ===============================================================================  
-    [..]
-
-@endverbatim
-  * @{
-  */
- 
-/**
-  * @brief  DeInitializes the LCD peripheral. 
-  * @param  hlcd: LCD handle
-  * @retval HAL status
-  */
-HAL_StatusTypeDef HAL_LCD_DeInit(LCD_HandleTypeDef *hlcd)
-{
-  /* Check the LCD handle allocation */
-  if(hlcd == HAL_NULL)
-  {
-    return HAL_ERROR;
-  }
-  
-  /* Check the parameters */
-  assert_param(IS_LCD_ALL_INSTANCE(hlcd->Instance));
-
-  hlcd->State = HAL_LCD_STATE_BUSY;
-  
-  /* DeInit the low level hardware */
-  HAL_LCD_MspDeInit(hlcd);
-  
-  hlcd->ErrorCode = HAL_LCD_ERROR_NONE;
-  hlcd->State = HAL_LCD_STATE_RESET;
-    
-  /* Release Lock */
-  __HAL_UNLOCK(hlcd);
-  
-  return HAL_OK;  
-}
-
-/**
-  * @brief  Initializes the LCD peripheral according to the specified parameters 
-  *         in the LCD_InitStruct.
-  * @note   This function can be used only when the LCD is disabled.  
-  * @param  hlcd: LCD handle
-  * @retval None
-  */
-HAL_StatusTypeDef HAL_LCD_Init(LCD_HandleTypeDef *hlcd)
-{
-  uint32_t tickstart = 0x00;
-  uint8_t counter = 0;
-    
-  /* Check the LCD handle allocation */
-  if(hlcd == HAL_NULL)
-  {
-    return HAL_ERROR;
-  }
-  
-  /* Check function parameters */
-  assert_param(IS_LCD_ALL_INSTANCE(hlcd->Instance));
-  assert_param(IS_LCD_PRESCALER(hlcd->Init.Prescaler));
-  assert_param(IS_LCD_DIVIDER(hlcd->Init.Divider));
-  assert_param(IS_LCD_DUTY(hlcd->Init.Duty));
-  assert_param(IS_LCD_BIAS(hlcd->Init.Bias));  
-  assert_param(IS_LCD_VOLTAGE_SOURCE(hlcd->Init.VoltageSource));
-  assert_param(IS_LCD_PULSE_ON_DURATION(hlcd->Init.PulseOnDuration));
-  assert_param(IS_LCD_DEAD_TIME(hlcd->Init.DeadTime));
-  assert_param(IS_LCD_CONTRAST(hlcd->Init.Contrast)); 
-  assert_param(IS_LCD_BLINK_FREQUENCY(hlcd->Init.BlinkFrequency)); 
-  assert_param(IS_LCD_BLINK_MODE(hlcd->Init.BlinkMode)); 
-  assert_param(IS_LCD_MUXSEGMENT(hlcd->Init.MuxSegment));
-  
-  if(hlcd->State == HAL_LCD_STATE_RESET)
-  {
-    /* Initialize the low level hardware (MSP) */
-    HAL_LCD_MspInit(hlcd);
-  }
-  
-  hlcd->State = HAL_LCD_STATE_BUSY;
-  
-  /* Disable the peripheral */
-  __HAL_LCD_DISABLE(hlcd);
-  
-  /* Clear the LCD_RAM registers and enable the display request by setting the UDR bit
-     in the LCD_SR register */
-  for(counter = LCD_RAM_REGISTER0; counter <= LCD_RAM_REGISTER15; counter++)
-  {
-    hlcd->Instance->RAM[counter] = 0;
-  }
-  /* Enable the display request */
-  hlcd->Instance->SR |= LCD_SR_UDR;
-  
-  /* Configure the LCD Prescaler, Divider, Blink mode and Blink Frequency: 
-  Set PS[3:0] bits according to hlcd->Init.Prescaler value 
-     Set DIV[3:0] bits according to hlcd->Init.Divider value
-     Set BLINK[1:0] bits according to hlcd->Init.BlinkMode value
-     Set BLINKF[2:0] bits according to hlcd->Init.BlinkFrequency value
-     Set DEAD[2:0] bits according to hlcd->Init.DeadTime value
-     Set PON[2:0] bits according to hlcd->Init.PulseOnDuration value 
-     Set CC[2:0] bits according to hlcd->Init.Contrast value */
-   MODIFY_REG(hlcd->Instance->FCR, \
-      (LCD_FCR_PS | LCD_FCR_DIV | LCD_FCR_BLINK| LCD_FCR_BLINKF | \
-       LCD_FCR_DEAD | LCD_FCR_PON | LCD_FCR_CC), \
-      (hlcd->Init.Prescaler | hlcd->Init.Divider | hlcd->Init.BlinkMode | hlcd->Init.BlinkFrequency | \
-       hlcd->Init.DeadTime | hlcd->Init.PulseOnDuration | hlcd->Init.Contrast));
-
-  /* Wait until LCD Frame Control Register Synchronization flag (FCRSF) is set in the LCD_SR register 
-     This bit is set by hardware each time the LCD_FCR register is updated in the LCDCLK
-     domain. It is cleared by hardware when writing to the LCD_FCR register.*/
-  LCD_WaitForSynchro(hlcd);
-  
-  /* Configure the LCD Duty, Bias, Voltage Source, Dead Time, Pulse On Duration and Contrast: 
-     Set DUTY[2:0] bits according to hlcd->Init.Duty value 
-     Set BIAS[1:0] bits according to hlcd->Init.Bias value
-     Set VSEL bit according to hlcd->Init.VoltageSource value
-     Set MUX_SEG bit according to hlcd->Init.MuxSegment value */
-  MODIFY_REG(hlcd->Instance->CR, \
-    (LCD_CR_DUTY | LCD_CR_BIAS | LCD_CR_VSEL | LCD_CR_MUX_SEG), \
-    (hlcd->Init.Duty | hlcd->Init.Bias | hlcd->Init.VoltageSource | hlcd->Init.MuxSegment));
-  
-  /* Enable the peripheral */
-  __HAL_LCD_ENABLE(hlcd);
-  
-  /* Get timeout */
-  tickstart = HAL_GetTick();
-      
-  /* Wait Until the LCD is enabled */
-  while(__HAL_LCD_GET_FLAG(hlcd, LCD_FLAG_ENS) == RESET)
-  {
-    if((HAL_GetTick() - tickstart ) > LCD_TIMEOUT_VALUE)
-    { 
-      hlcd->ErrorCode = HAL_LCD_ERROR_ENS;     
-      return HAL_TIMEOUT;
-    } 
-  }
-  
-  /* Get timeout */
-  tickstart = HAL_GetTick();
-  
-  /*!< Wait Until the LCD Booster is ready */
-  while(__HAL_LCD_GET_FLAG(hlcd, LCD_FLAG_RDY) == RESET)
-  {
-    if((HAL_GetTick() - tickstart ) > LCD_TIMEOUT_VALUE)
-    {   
-      hlcd->ErrorCode = HAL_LCD_ERROR_RDY;  
-      return HAL_TIMEOUT;
-    } 
-  }
- 
-  /* Initialize the LCD state */
-  hlcd->ErrorCode = HAL_LCD_ERROR_NONE;
-  hlcd->State= HAL_LCD_STATE_READY;
-  
-  return HAL_OK;
-}
-
-/**
-  * @brief  LCD MSP DeInit.
-  * @param  hlcd: LCD handle
-  * @retval None
-  */
- __weak void HAL_LCD_MspDeInit(LCD_HandleTypeDef *hlcd)
-{
-  /* NOTE: This function Should not be modified, when the callback is needed,
-           the HAL_LCD_MspDeInit could be implemented in the user file
-   */ 
-}
-
-/**
-  * @brief  LCD MSP Init.
-  * @param  hlcd: LCD handle
-  * @retval None
-  */
- __weak void HAL_LCD_MspInit(LCD_HandleTypeDef *hlcd)
-{
-  /* NOTE: This function Should not be modified, when the callback is needed,
-           the HAL_LCD_MspInit could be implemented in the user file
-   */ 
-}
-
-/**
-  * @}
-  */
-
-/** @defgroup LCD_Exported_Functions_Group2 IO operation methods 
-  *  @brief LCD RAM functions 
-  *
-@verbatim   
- ===============================================================================
-                      ##### IO operation functions #####
- ===============================================================================  
- [..] Using its double buffer memory the LCD controller ensures the coherency of the 
- displayed information without having to use interrupts to control LCD_RAM 
- modification.
- The application software can access the first buffer level (LCD_RAM) through 
- the APB interface. Once it has modified the LCD_RAM using the HAL_LCD_Write() API,
- it sets the UDR flag in the LCD_SR register using the HAL_LCD_UpdateDisplayRequest() API.
- This UDR flag (update display request) requests the updated information to be 
- moved into the second buffer level (LCD_DISPLAY).
- This operation is done synchronously with the frame (at the beginning of the 
- next frame), until the update is completed, the LCD_RAM is write protected and 
- the UDR flag stays high.
- Once the update is completed another flag (UDD - Update Display Done) is set and
- generates an interrupt if the UDDIE bit in the LCD_FCR register is set.
- The time it takes to update LCD_DISPLAY is, in the worst case, one odd and one 
- even frame.
- The update will not occur (UDR = 1 and UDD = 0) until the display is 
- enabled (LCDEN = 1).
-      
-@endverbatim
-  * @{
-  */
-
-/**
-  * @brief  Writes a word in the specific LCD RAM.
-  * @param  hlcd: LCD handle
-  * @param  RAMRegisterIndex: specifies the LCD RAM Register.
-  *   This parameter can be one of the following values:
-  *     @arg LCD_RAM_REGISTER0: LCD RAM Register 0
-  *     @arg LCD_RAM_REGISTER1: LCD RAM Register 1
-  *     @arg LCD_RAM_REGISTER2: LCD RAM Register 2
-  *     @arg LCD_RAM_REGISTER3: LCD RAM Register 3
-  *     @arg LCD_RAM_REGISTER4: LCD RAM Register 4
-  *     @arg LCD_RAM_REGISTER5: LCD RAM Register 5
-  *     @arg LCD_RAM_REGISTER6: LCD RAM Register 6 
-  *     @arg LCD_RAM_REGISTER7: LCD RAM Register 7  
-  *     @arg LCD_RAM_REGISTER8: LCD RAM Register 8
-  *     @arg LCD_RAM_REGISTER9: LCD RAM Register 9
-  *     @arg LCD_RAM_REGISTER10: LCD RAM Register 10
-  *     @arg LCD_RAM_REGISTER11: LCD RAM Register 11
-  *     @arg LCD_RAM_REGISTER12: LCD RAM Register 12 
-  *     @arg LCD_RAM_REGISTER13: LCD RAM Register 13 
-  *     @arg LCD_RAM_REGISTER14: LCD RAM Register 14 
-  *     @arg LCD_RAM_REGISTER15: LCD RAM Register 15
-  * @param  RAMRegisterMask: specifies the LCD RAM Register Data Mask.
-  * @param  Data: specifies LCD Data Value to be written.
-  * @retval None
-  */
-HAL_StatusTypeDef HAL_LCD_Write(LCD_HandleTypeDef *hlcd, uint32_t RAMRegisterIndex, uint32_t RAMRegisterMask, uint32_t Data)
-{
-  uint32_t tickstart = 0x00; 
-  
-  if((hlcd->State == HAL_LCD_STATE_READY) || (hlcd->State == HAL_LCD_STATE_BUSY))
-  {
-    /* Check the parameters */
-    assert_param(IS_LCD_RAM_REGISTER(RAMRegisterIndex));
-    
-    if(hlcd->State == HAL_LCD_STATE_READY)
-    {
-      /* Process Locked */
-      __HAL_LOCK(hlcd);
-      hlcd->State = HAL_LCD_STATE_BUSY;
-      
-      /* Get timeout */
-      tickstart = HAL_GetTick();
-      
-      /*!< Wait Until the LCD is ready */
-      while(__HAL_LCD_GET_FLAG(hlcd, LCD_FLAG_UDR) != RESET)
-      {
-        if((HAL_GetTick() - tickstart ) > LCD_TIMEOUT_VALUE)
-        { 
-          hlcd->ErrorCode = HAL_LCD_ERROR_UDR;
-          
-          /* Process Unlocked */
-          __HAL_UNLOCK(hlcd);
-          
-          return HAL_TIMEOUT;
-        } 
-      }
-    }
-    
-    /* Copy the new Data bytes to LCD RAM register */
-    MODIFY_REG(hlcd->Instance->RAM[RAMRegisterIndex], ~(RAMRegisterMask), Data);
-
-    return HAL_OK;
-  }
-  else
-  {
-    return HAL_ERROR;
-  }
-}
-
-/**
-  * @brief Clears the LCD RAM registers.
-  * @param hlcd: LCD handle
-  * @retval None
-  */
-HAL_StatusTypeDef HAL_LCD_Clear(LCD_HandleTypeDef *hlcd)
-{
-  uint32_t tickstart = 0x00; 
-  uint32_t counter = 0;
-  
-  if((hlcd->State == HAL_LCD_STATE_READY) || (hlcd->State == HAL_LCD_STATE_BUSY))
-  {
-    /* Process Locked */
-    __HAL_LOCK(hlcd);
-    
-    hlcd->State = HAL_LCD_STATE_BUSY;
-    
-    /* Get timeout */
-    tickstart = HAL_GetTick();
-    
-    /*!< Wait Until the LCD is ready */
-    while(__HAL_LCD_GET_FLAG(hlcd, LCD_FLAG_UDR) != RESET)
-    {
-      if((HAL_GetTick() - tickstart ) > LCD_TIMEOUT_VALUE)
-      { 
-        hlcd->ErrorCode = HAL_LCD_ERROR_UDR;
-        
-        /* Process Unlocked */
-        __HAL_UNLOCK(hlcd);
-        
-        return HAL_TIMEOUT;
-      } 
-    }
-    /* Clear the LCD_RAM registers */
-    for(counter = LCD_RAM_REGISTER0; counter <= LCD_RAM_REGISTER15; counter++)
-    {
-      hlcd->Instance->RAM[counter] = 0;
-    }
-    
-    /* Update the LCD display */
-    HAL_LCD_UpdateDisplayRequest(hlcd);     
-    
-    return HAL_OK;
-  }
-  else
-  {
-    return HAL_ERROR;
-  }
-}
-
-/**
-  * @brief  Enables the Update Display Request.
-  * @param  hlcd: LCD handle
-  * @note   Each time software modifies the LCD_RAM it must set the UDR bit to 
-  *         transfer the updated data to the second level buffer. 
-  *         The UDR bit stays set until the end of the update and during this 
-  *         time the LCD_RAM is write protected. 
-  * @note   When the display is disabled, the update is performed for all 
-  *         LCD_DISPLAY locations.
-  *         When the display is enabled, the update is performed only for locations 
-  *         for which commons are active (depending on DUTY). For example if 
-  *         DUTY = 1/2, only the LCD_DISPLAY of COM0 and COM1 will be updated.    
-  * @retval None
-  */
-HAL_StatusTypeDef HAL_LCD_UpdateDisplayRequest(LCD_HandleTypeDef *hlcd)
-{
-  uint32_t tickstart = 0x00;
-  
-  /* Clear the Update Display Done flag before starting the update display request */
-  __HAL_LCD_CLEAR_FLAG(hlcd, LCD_FLAG_UDD);
-  
-  /* Enable the display request */
-  hlcd->Instance->SR |= LCD_SR_UDR;
-  
-  /* Get timeout */
-  tickstart = HAL_GetTick();
-  
-  /*!< Wait Until the LCD display is done */
-  while(__HAL_LCD_GET_FLAG(hlcd, LCD_FLAG_UDD) == RESET)
-  {
-    if((HAL_GetTick() - tickstart ) > LCD_TIMEOUT_VALUE)
-    { 
-      hlcd->ErrorCode = HAL_LCD_ERROR_UDD;
-      
-      /* Process Unlocked */
-      __HAL_UNLOCK(hlcd);
-  
-      return HAL_TIMEOUT;
-    }
-  }
-
-  hlcd->State = HAL_LCD_STATE_READY;
-  
-  /* Process Unlocked */
-  __HAL_UNLOCK(hlcd);
-  
-  return HAL_OK;
-}
-
-/**
-  * @}
-  */
-
-/** @defgroup LCD_Exported_Functions_Group3 Peripheral State methods 
-  *  @brief   LCD State functions 
-  *
-@verbatim   
- ===============================================================================
-                      ##### Peripheral State functions #####
- ===============================================================================  
-    [..]
-     This subsection provides a set of functions allowing to control the LCD:
-      (+) HAL_LCD_GetState() API can be helpful to check in run-time the state of the LCD peripheral State. 
-      (+) HAL_LCD_GetError() API to return the LCD error code. 
-@endverbatim
-  * @{
-  */
-
-/**
-  * @brief Returns the LCD state.
-  * @param hlcd: LCD handle
-  * @retval HAL state
-  */
-HAL_LCD_StateTypeDef HAL_LCD_GetState(LCD_HandleTypeDef *hlcd)
-{
-  return hlcd->State;
-}
-
-/**
-  * @brief Return the LCD error code
-  * @param hlcd: LCD handle
-  * @retval LCD Error Code
-  */
-uint32_t HAL_LCD_GetError(LCD_HandleTypeDef *hlcd)
-{
-  return hlcd->ErrorCode;
-}
-
-/**
-  * @}
-  */
-
-/**
-  * @}
-  */
-  
-/** @defgroup LCD_Private_Functions LCD Private Functions
-  * @{
-  */
-
-/**
-  * @brief  Waits until the LCD FCR register is synchronized in the LCDCLK domain.
-  *   This function must be called after any write operation to LCD_FCR register.
-  * @retval None
-  */
-HAL_StatusTypeDef LCD_WaitForSynchro(LCD_HandleTypeDef *hlcd)
-{
-  uint32_t tickstart = 0x00; 
-  
-  /* Get timeout */
-  tickstart = HAL_GetTick();
-
-  /* Loop until FCRSF flag is set */
-  while(__HAL_LCD_GET_FLAG(hlcd, LCD_FLAG_FCRSF) == RESET)
-  {
-    if((HAL_GetTick() - tickstart ) > LCD_TIMEOUT_VALUE)
-    {
-      hlcd->ErrorCode = HAL_LCD_ERROR_FCRSF;
-      return HAL_TIMEOUT;
-    }
-  }
-
-  return HAL_OK;
-}
-
-/**
-  * @}
-  */
-
-/**
-  * @}
-  */
-
-#endif /* STM32L100xB || STM32L100xBA || STM32L100xC ||... || STM32L162xD || STM32L162xE */
-
-#endif /* HAL_LCD_MODULE_ENABLED */
-
-/**
-  * @}
-  */
-
-/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
-
+/**
+  ******************************************************************************
+  * @file    stm32l1xx_hal_lcd.c
+  * @author  MCD Application Team
+  * @version V1.1.3
+  * @date    04-March-2016
+  * @brief   LCD Controller HAL module driver.
+  *          This file provides firmware functions to manage the following 
+  *          functionalities of the LCD Controller (LCD) peripheral:
+  *           + Initialization/de-initialization methods
+  *           + I/O operation methods
+  *           + Peripheral State methods
+  *           
+  @verbatim
+  ==============================================================================
+                        ##### How to use this driver #####
+  ==============================================================================   
+      [..] The LCD HAL driver can be used as follows:
+    
+      (#) Declare a LCD_HandleTypeDef handle structure.
+
+      (#) Initialize the LCD low level resources by implement the HAL_LCD_MspInit() API:
+          (##) Enable the LCDCLK (same as RTCCLK): to configure the RTCCLK/LCDCLK, proceed as follows:
+               (+++) Use RCC function HAL_RCCEx_PeriphCLKConfig in indicating RCC_PERIPHCLK_LCD and 
+                     selected clock source (HSE, LSI or LSE)
+               (+++) The frequency generator allows you to achieve various LCD frame rates 
+                     starting from an LCD input clock frequency (LCDCLK) which can vary 
+                     from 32 kHz up to 1 MHz.
+          (##) LCD pins configuration:
+               (+++) Enable the clock for the LCD GPIOs.
+               (+++) Configure these LCD pins as alternate function no-pull.
+          (##) Enable the LCD interface clock.
+
+      (#) Program the Prescaler, Divider, Blink mode, Blink Frequency Duty, Bias,
+           Voltage Source, Dead Time, Pulse On Duration and Contrast in the hlcd Init structure.
+
+      (#) Initialize the LCD registers by calling the HAL_LCD_Init() API.
+
+      -@- The HAL_LCD_Init() API configures also the low level Hardware GPIO, CLOCK, ...etc)
+          by calling the custumed HAL_LCD_MspInit() API.
+      -@- After calling the HAL_LCD_Init() the LCD RAM memory is cleared
+
+      (#) Optionally you can update the LCD configuration using these macros:
+          (++) LCD High Drive using the __HAL_LCD_HIGHDRIVER_ENABLE() and __HAL_LCD_HIGHDRIVER_DISABLE() macros
+          (++) LCD Pulse ON Duration using the __HAL_LCD_PULSEONDURATION_CONFIG() macro
+          (++) LCD Dead Time using the __HAL_LCD_DEADTIME_CONFIG() macro  
+          (++) The LCD Blink mode and frequency using the __HAL_LCD_BLINK_CONFIG() macro
+          (++) The LCD Contrast using the __HAL_LCD_CONTRAST_CONFIG() macro  
+
+      (#) Write to the LCD RAM memory using the HAL_LCD_Write() API, this API can be called
+          more time to update the different LCD RAM registers before calling 
+          HAL_LCD_UpdateDisplayRequest() API.
+
+      (#) The HAL_LCD_Clear() API can be used to clear the LCD RAM memory.
+
+      (#) When LCD RAM memory is updated enable the update display request using
+          the HAL_LCD_UpdateDisplayRequest() API.
+
+      [..] LCD and low power modes:
+           (#) The LCD remain active during STOP mode.
+
+  @endverbatim
+  ******************************************************************************
+  * @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 "stm32l1xx_hal.h"
+
+/** @addtogroup STM32L1xx_HAL_Driver
+  * @{
+  */
+
+#ifdef HAL_LCD_MODULE_ENABLED
+
+#if defined (STM32L100xB) || defined (STM32L100xBA) || defined (STM32L100xC) ||\
+    defined (STM32L152xB) || defined (STM32L152xBA) || defined (STM32L152xC) || defined (STM32L152xCA) || defined (STM32L152xD) || defined (STM32L152xE) || defined (STM32L152xDX) ||\
+    defined (STM32L162xC) || defined (STM32L162xCA) || defined (STM32L162xD) || defined (STM32L162xE) || defined (STM32L162xDX)
+
+/** @defgroup LCD LCD
+  * @brief LCD HAL module driver
+  * @{
+  */
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/** @defgroup LCD_Private_Defines LCD Private Defines
+  * @{
+  */
+
+#define LCD_TIMEOUT_VALUE             1000
+
+/**
+  * @}
+  */
+
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* Private function prototypes -----------------------------------------------*/
+/* Private functions ---------------------------------------------------------*/
+
+/** @defgroup LCD_Exported_Functions LCD Exported Functions
+  * @{
+  */
+
+/** @defgroup LCD_Exported_Functions_Group1 Initialization/de-initialization methods 
+  *  @brief    Initialization and Configuration functions 
+  *
+@verbatim    
+===============================================================================
+            ##### Initialization and Configuration functions #####
+ ===============================================================================  
+    [..]
+
+@endverbatim
+  * @{
+  */
+ 
+/**
+  * @brief  DeInitializes the LCD peripheral. 
+  * @param  hlcd: LCD handle
+  * @retval HAL status
+  */
+HAL_StatusTypeDef HAL_LCD_DeInit(LCD_HandleTypeDef *hlcd)
+{
+  /* Check the LCD handle allocation */
+  if(hlcd == NULL)
+  {
+    return HAL_ERROR;
+  }
+  
+  /* Check the parameters */
+  assert_param(IS_LCD_ALL_INSTANCE(hlcd->Instance));
+
+  /* Check the LCD peripheral state */
+  if(hlcd->State == HAL_LCD_STATE_BUSY)
+  {
+    return HAL_BUSY;
+  }
+
+  hlcd->State = HAL_LCD_STATE_BUSY;
+
+  /* Disable the peripheral */
+  __HAL_LCD_DISABLE(hlcd);
+
+  /*Disable Highdrive by default*/
+  __HAL_LCD_HIGHDRIVER_DISABLE(hlcd);
+  
+  /* DeInit the low level hardware */
+  HAL_LCD_MspDeInit(hlcd);
+  
+  hlcd->ErrorCode = HAL_LCD_ERROR_NONE;
+  hlcd->State = HAL_LCD_STATE_RESET;
+    
+  /* Release Lock */
+  __HAL_UNLOCK(hlcd);
+  
+  return HAL_OK;  
+}
+
+/**
+  * @brief  Initializes the LCD peripheral according to the specified parameters 
+  *         in the LCD_InitStruct.
+  * @note   This function can be used only when the LCD is disabled.  
+  *         The LCD HighDrive can be enabled/disabled using related macros up to user.
+  * @param  hlcd: LCD handle
+  * @retval None
+  */
+HAL_StatusTypeDef HAL_LCD_Init(LCD_HandleTypeDef *hlcd)
+{
+  uint32_t tickstart = 0x00;
+  uint8_t counter = 0;
+    
+  /* Check the LCD handle allocation */
+  if(hlcd == NULL)
+  {
+    return HAL_ERROR;
+  }
+  
+  /* Check function parameters */
+  assert_param(IS_LCD_ALL_INSTANCE(hlcd->Instance));
+  assert_param(IS_LCD_PRESCALER(hlcd->Init.Prescaler));
+  assert_param(IS_LCD_DIVIDER(hlcd->Init.Divider));
+  assert_param(IS_LCD_DUTY(hlcd->Init.Duty));
+  assert_param(IS_LCD_BIAS(hlcd->Init.Bias));  
+  assert_param(IS_LCD_VOLTAGE_SOURCE(hlcd->Init.VoltageSource));
+  assert_param(IS_LCD_PULSE_ON_DURATION(hlcd->Init.PulseOnDuration));
+  assert_param(IS_LCD_HIGHDRIVE(hlcd->Init.HighDrive));
+  assert_param(IS_LCD_DEAD_TIME(hlcd->Init.DeadTime));
+  assert_param(IS_LCD_CONTRAST(hlcd->Init.Contrast)); 
+  assert_param(IS_LCD_BLINK_FREQUENCY(hlcd->Init.BlinkFrequency)); 
+  assert_param(IS_LCD_BLINK_MODE(hlcd->Init.BlinkMode)); 
+  assert_param(IS_LCD_MUXSEGMENT(hlcd->Init.MuxSegment));
+  
+  if(hlcd->State == HAL_LCD_STATE_RESET)
+  {
+    /* Allocate lock resource and initialize it */
+    hlcd->Lock = HAL_UNLOCKED;
+
+    /* Initialize the low level hardware (MSP) */
+    HAL_LCD_MspInit(hlcd);
+  }
+  
+  hlcd->State = HAL_LCD_STATE_BUSY;
+  
+  /* Disable the peripheral */
+  __HAL_LCD_DISABLE(hlcd);
+  
+  /* Clear the LCD_RAM registers and enable the display request by setting the UDR bit
+     in the LCD_SR register */
+  for(counter = LCD_RAM_REGISTER0; counter <= LCD_RAM_REGISTER15; counter++)
+  {
+    hlcd->Instance->RAM[counter] = 0;
+  }
+  /* Enable the display request */
+  SET_BIT(hlcd->Instance->SR, LCD_SR_UDR);
+  
+  /* Configure the LCD Prescaler, Divider, Blink mode and Blink Frequency: 
+     Set PS[3:0] bits according to hlcd->Init.Prescaler value 
+     Set DIV[3:0] bits according to hlcd->Init.Divider value
+     Set BLINK[1:0] bits according to hlcd->Init.BlinkMode value
+     Set BLINKF[2:0] bits according to hlcd->Init.BlinkFrequency value
+     Set DEAD[2:0] bits according to hlcd->Init.DeadTime value
+     Set PON[2:0] bits according to hlcd->Init.PulseOnDuration value 
+     Set CC[2:0] bits according to hlcd->Init.Contrast value
+     Set HD[0] bit according to hlcd->Init.HighDrive value */
+   MODIFY_REG(hlcd->Instance->FCR, \
+      (LCD_FCR_PS | LCD_FCR_DIV | LCD_FCR_BLINK| LCD_FCR_BLINKF | \
+       LCD_FCR_DEAD | LCD_FCR_PON | LCD_FCR_CC), \
+      (hlcd->Init.Prescaler | hlcd->Init.Divider | hlcd->Init.BlinkMode | hlcd->Init.BlinkFrequency | \
+             hlcd->Init.DeadTime | hlcd->Init.PulseOnDuration | hlcd->Init.Contrast | hlcd->Init.HighDrive));
+
+  /* Wait until LCD Frame Control Register Synchronization flag (FCRSF) is set in the LCD_SR register 
+     This bit is set by hardware each time the LCD_FCR register is updated in the LCDCLK
+     domain. It is cleared by hardware when writing to the LCD_FCR register.*/
+  LCD_WaitForSynchro(hlcd);
+  
+  /* Configure the LCD Duty, Bias, Voltage Source, Dead Time:
+     Set DUTY[2:0] bits according to hlcd->Init.Duty value 
+     Set BIAS[1:0] bits according to hlcd->Init.Bias value
+     Set VSEL bit according to hlcd->Init.VoltageSource value
+     Set MUX_SEG bit according to hlcd->Init.MuxSegment value */
+  MODIFY_REG(hlcd->Instance->CR, \
+    (LCD_CR_DUTY | LCD_CR_BIAS | LCD_CR_VSEL | LCD_CR_MUX_SEG), \
+    (hlcd->Init.Duty | hlcd->Init.Bias | hlcd->Init.VoltageSource | hlcd->Init.MuxSegment));
+  
+  /* Enable the peripheral */
+  __HAL_LCD_ENABLE(hlcd);
+  
+  /* Get timeout */
+  tickstart = HAL_GetTick();
+      
+  /* Wait Until the LCD is enabled */
+  while(__HAL_LCD_GET_FLAG(hlcd, LCD_FLAG_ENS) == RESET)
+  {
+    if((HAL_GetTick() - tickstart ) > LCD_TIMEOUT_VALUE)
+    { 
+      hlcd->ErrorCode = HAL_LCD_ERROR_ENS;     
+      return HAL_TIMEOUT;
+    } 
+  }
+  
+  /* Get timeout */
+  tickstart = HAL_GetTick();
+  
+  /*!< Wait Until the LCD Booster is ready */
+  while(__HAL_LCD_GET_FLAG(hlcd, LCD_FLAG_RDY) == RESET)
+  {
+    if((HAL_GetTick() - tickstart ) > LCD_TIMEOUT_VALUE)
+    {   
+      hlcd->ErrorCode = HAL_LCD_ERROR_RDY;  
+      return HAL_TIMEOUT;
+    } 
+  }
+ 
+  /* Initialize the LCD state */
+  hlcd->ErrorCode = HAL_LCD_ERROR_NONE;
+  hlcd->State= HAL_LCD_STATE_READY;
+  
+  return HAL_OK;
+}
+
+/**
+  * @brief  LCD MSP DeInit.
+  * @param  hlcd: LCD handle
+  * @retval None
+  */
+ __weak void HAL_LCD_MspDeInit(LCD_HandleTypeDef *hlcd)
+{
+  /* Prevent unused argument(s) compilation warning */
+  UNUSED(hlcd);
+
+  /* NOTE: This function Should not be modified, when the callback is needed,
+           the HAL_LCD_MspDeInit could be implemented in the user file
+   */ 
+}
+
+/**
+  * @brief  LCD MSP Init.
+  * @param  hlcd: LCD handle
+  * @retval None
+  */
+ __weak void HAL_LCD_MspInit(LCD_HandleTypeDef *hlcd)
+{
+  /* Prevent unused argument(s) compilation warning */
+  UNUSED(hlcd);
+
+  /* NOTE: This function Should not be modified, when the callback is needed,
+           the HAL_LCD_MspInit could be implemented in the user file
+   */ 
+}
+
+/**
+  * @}
+  */
+
+/** @defgroup LCD_Exported_Functions_Group2 IO operation methods 
+  *  @brief LCD RAM functions 
+  *
+@verbatim   
+ ===============================================================================
+                      ##### IO operation functions #####
+ ===============================================================================  
+ [..] Using its double buffer memory the LCD controller ensures the coherency of the 
+ displayed information without having to use interrupts to control LCD_RAM 
+ modification.
+ (+)The application software can access the first buffer level (LCD_RAM) through 
+ the APB interface. Once it has modified the LCD_RAM using the HAL_LCD_Write() API,
+ it sets the UDR flag in the LCD_SR register using the HAL_LCD_UpdateDisplayRequest() API.
+ This UDR flag (update display request) requests the updated information to be 
+ moved into the second buffer level (LCD_DISPLAY).
+ (+)This operation is done synchronously with the frame (at the beginning of the 
+ next frame), until the update is completed, the LCD_RAM is write protected and 
+ the UDR flag stays high.
+ (+)Once the update is completed another flag (UDD - Update Display Done) is set and
+ generates an interrupt if the UDDIE bit in the LCD_FCR register is set.
+ The time it takes to update LCD_DISPLAY is, in the worst case, one odd and one 
+ even frame.
+ (+)The update will not occur (UDR = 1 and UDD = 0) until the display is 
+ enabled (LCDEN = 1).
+      
+@endverbatim
+  * @{
+  */
+
+/**
+  * @brief  Writes a word in the specific LCD RAM.
+  * @param  hlcd: LCD handle
+  * @param  RAMRegisterIndex: specifies the LCD RAM Register.
+  *   This parameter can be one of the following values:
+  *     @arg LCD_RAM_REGISTER0: LCD RAM Register 0
+  *     @arg LCD_RAM_REGISTER1: LCD RAM Register 1
+  *     @arg LCD_RAM_REGISTER2: LCD RAM Register 2
+  *     @arg LCD_RAM_REGISTER3: LCD RAM Register 3
+  *     @arg LCD_RAM_REGISTER4: LCD RAM Register 4
+  *     @arg LCD_RAM_REGISTER5: LCD RAM Register 5
+  *     @arg LCD_RAM_REGISTER6: LCD RAM Register 6 
+  *     @arg LCD_RAM_REGISTER7: LCD RAM Register 7  
+  *     @arg LCD_RAM_REGISTER8: LCD RAM Register 8
+  *     @arg LCD_RAM_REGISTER9: LCD RAM Register 9
+  *     @arg LCD_RAM_REGISTER10: LCD RAM Register 10
+  *     @arg LCD_RAM_REGISTER11: LCD RAM Register 11
+  *     @arg LCD_RAM_REGISTER12: LCD RAM Register 12 
+  *     @arg LCD_RAM_REGISTER13: LCD RAM Register 13 
+  *     @arg LCD_RAM_REGISTER14: LCD RAM Register 14 
+  *     @arg LCD_RAM_REGISTER15: LCD RAM Register 15
+  * @param  RAMRegisterMask: specifies the LCD RAM Register Data Mask.
+  * @param  Data: specifies LCD Data Value to be written.
+  * @retval None
+  */
+HAL_StatusTypeDef HAL_LCD_Write(LCD_HandleTypeDef *hlcd, uint32_t RAMRegisterIndex, uint32_t RAMRegisterMask, uint32_t Data)
+{
+  uint32_t tickstart = 0x00; 
+  
+  if((hlcd->State == HAL_LCD_STATE_READY) || (hlcd->State == HAL_LCD_STATE_BUSY))
+  {
+    /* Check the parameters */
+    assert_param(IS_LCD_RAM_REGISTER(RAMRegisterIndex));
+    
+    if(hlcd->State == HAL_LCD_STATE_READY)
+    {
+      /* Process Locked */
+      __HAL_LOCK(hlcd);
+      hlcd->State = HAL_LCD_STATE_BUSY;
+      
+      /* Get timeout */
+      tickstart = HAL_GetTick();
+      
+      /*!< Wait Until the LCD is ready */
+      while(__HAL_LCD_GET_FLAG(hlcd, LCD_FLAG_UDR) != RESET)
+      {
+        if((HAL_GetTick() - tickstart ) > LCD_TIMEOUT_VALUE)
+        { 
+          hlcd->ErrorCode = HAL_LCD_ERROR_UDR;
+          
+          /* Process Unlocked */
+          __HAL_UNLOCK(hlcd);
+          
+          return HAL_TIMEOUT;
+        } 
+      }
+    }
+    
+    /* Copy the new Data bytes to LCD RAM register */
+    MODIFY_REG(hlcd->Instance->RAM[RAMRegisterIndex], ~(RAMRegisterMask), Data);
+
+    return HAL_OK;
+  }
+  else
+  {
+    return HAL_ERROR;
+  }
+}
+
+/**
+  * @brief Clears the LCD RAM registers.
+  * @param hlcd: LCD handle
+  * @retval None
+  */
+HAL_StatusTypeDef HAL_LCD_Clear(LCD_HandleTypeDef *hlcd)
+{
+  uint32_t tickstart = 0x00; 
+  uint32_t counter = 0;
+  
+  if((hlcd->State == HAL_LCD_STATE_READY) || (hlcd->State == HAL_LCD_STATE_BUSY))
+  {
+    /* Process Locked */
+    __HAL_LOCK(hlcd);
+    
+    hlcd->State = HAL_LCD_STATE_BUSY;
+    
+    /* Get timeout */
+    tickstart = HAL_GetTick();
+    
+    /*!< Wait Until the LCD is ready */
+    while(__HAL_LCD_GET_FLAG(hlcd, LCD_FLAG_UDR) != RESET)
+    {
+      if((HAL_GetTick() - tickstart ) > LCD_TIMEOUT_VALUE)
+      { 
+        hlcd->ErrorCode = HAL_LCD_ERROR_UDR;
+        
+        /* Process Unlocked */
+        __HAL_UNLOCK(hlcd);
+        
+        return HAL_TIMEOUT;
+      } 
+    }
+    /* Clear the LCD_RAM registers */
+    for(counter = LCD_RAM_REGISTER0; counter <= LCD_RAM_REGISTER15; counter++)
+    {
+      hlcd->Instance->RAM[counter] = 0;
+    }
+    
+    /* Update the LCD display */
+    HAL_LCD_UpdateDisplayRequest(hlcd);     
+    
+    return HAL_OK;
+  }
+  else
+  {
+    return HAL_ERROR;
+  }
+}
+
+/**
+  * @brief  Enables the Update Display Request.
+  * @param  hlcd: LCD handle
+  * @note   Each time software modifies the LCD_RAM it must set the UDR bit to 
+  *         transfer the updated data to the second level buffer. 
+  *         The UDR bit stays set until the end of the update and during this 
+  *         time the LCD_RAM is write protected. 
+  * @note   When the display is disabled, the update is performed for all 
+  *         LCD_DISPLAY locations.
+  *         When the display is enabled, the update is performed only for locations 
+  *         for which commons are active (depending on DUTY). For example if 
+  *         DUTY = 1/2, only the LCD_DISPLAY of COM0 and COM1 will be updated.    
+  * @retval None
+  */
+HAL_StatusTypeDef HAL_LCD_UpdateDisplayRequest(LCD_HandleTypeDef *hlcd)
+{
+  uint32_t tickstart = 0x00;
+  
+  /* Clear the Update Display Done flag before starting the update display request */
+  __HAL_LCD_CLEAR_FLAG(hlcd, LCD_FLAG_UDD);
+  
+  /* Enable the display request */
+  hlcd->Instance->SR |= LCD_SR_UDR;
+  
+  /* Get timeout */
+  tickstart = HAL_GetTick();
+  
+  /*!< Wait Until the LCD display is done */
+  while(__HAL_LCD_GET_FLAG(hlcd, LCD_FLAG_UDD) == RESET)
+  {
+    if((HAL_GetTick() - tickstart ) > LCD_TIMEOUT_VALUE)
+    { 
+      hlcd->ErrorCode = HAL_LCD_ERROR_UDD;
+      
+      /* Process Unlocked */
+      __HAL_UNLOCK(hlcd);
+  
+      return HAL_TIMEOUT;
+    }
+  }
+
+  hlcd->State = HAL_LCD_STATE_READY;
+  
+  /* Process Unlocked */
+  __HAL_UNLOCK(hlcd);
+  
+  return HAL_OK;
+}
+
+/**
+  * @}
+  */
+
+/** @defgroup LCD_Exported_Functions_Group3 Peripheral State methods 
+  *  @brief   LCD State functions 
+  *
+@verbatim   
+ ===============================================================================
+                      ##### Peripheral State functions #####
+ ===============================================================================  
+    [..]
+     This subsection provides a set of functions allowing to control the LCD:
+      (+) HAL_LCD_GetState() API can be helpful to check in run-time the state of the LCD peripheral State. 
+      (+) HAL_LCD_GetError() API to return the LCD error code. 
+@endverbatim
+  * @{
+  */
+
+/**
+  * @brief Returns the LCD state.
+  * @param hlcd: LCD handle
+  * @retval HAL state
+  */
+HAL_LCD_StateTypeDef HAL_LCD_GetState(LCD_HandleTypeDef *hlcd)
+{
+  return hlcd->State;
+}
+
+/**
+  * @brief Return the LCD error code
+  * @param hlcd: LCD handle
+  * @retval LCD Error Code
+  */
+uint32_t HAL_LCD_GetError(LCD_HandleTypeDef *hlcd)
+{
+  return hlcd->ErrorCode;
+}
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+  
+/** @defgroup LCD_Private_Functions LCD Private Functions
+  * @{
+  */
+
+/**
+  * @brief  Waits until the LCD FCR register is synchronized in the LCDCLK domain.
+  *   This function must be called after any write operation to LCD_FCR register.
+  * @retval None
+  */
+HAL_StatusTypeDef LCD_WaitForSynchro(LCD_HandleTypeDef *hlcd)
+{
+  uint32_t tickstart = 0x00; 
+  
+  /* Get timeout */
+  tickstart = HAL_GetTick();
+
+  /* Loop until FCRSF flag is set */
+  while(__HAL_LCD_GET_FLAG(hlcd, LCD_FLAG_FCRSF) == RESET)
+  {
+    if((HAL_GetTick() - tickstart ) > LCD_TIMEOUT_VALUE)
+    {
+      hlcd->ErrorCode = HAL_LCD_ERROR_FCRSF;
+      return HAL_TIMEOUT;
+    }
+  }
+
+  return HAL_OK;
+}
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+#endif /* STM32L100xB || STM32L100xBA || STM32L100xC ||... || STM32L162xD || STM32L162xE || STM32L162xDX */
+
+#endif /* HAL_LCD_MODULE_ENABLED */
+
+/**
+  * @}
+  */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+