Diff: targets/TARGET_STM/TARGET_STM32F0/device/stm32f0xx_ll_comp.c

Revision:

156:95d6b41a828b

Child:

180:96ed750bd169

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/targets/TARGET_STM/TARGET_STM32F0/device/stm32f0xx_ll_comp.c	Mon Jan 16 15:03:32 2017 +0000
@@ -0,0 +1,333 @@
+/**
+  ******************************************************************************
+  * @file    stm32f0xx_ll_comp.c
+  * @author  MCD Application Team
+  * @version V1.4.0
+  * @date    27-May-2016
+  * @brief   COMP LL module driver
+  ******************************************************************************
+  * @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.
+  *
+  ******************************************************************************
+  */
+#if defined(USE_FULL_LL_DRIVER)
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f0xx_ll_comp.h"
+
+#ifdef  USE_FULL_ASSERT
+  #include "stm32_assert.h"
+#else
+  #define assert_param(expr) ((void)0U)
+#endif
+
+/** @addtogroup STM32F0xx_LL_Driver
+  * @{
+  */
+
+#if defined (COMP1) || defined (COMP2)
+
+/** @addtogroup COMP_LL COMP
+  * @{
+  */
+
+/* Private types -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* Private constants ---------------------------------------------------------*/
+/* Private macros ------------------------------------------------------------*/
+
+/** @addtogroup COMP_LL_Private_Macros
+  * @{
+  */
+
+/* Check of parameters for configuration of COMP hierarchical scope:          */
+/* COMP instance.                                                             */
+
+#define IS_LL_COMP_POWER_MODE(__POWER_MODE__)                                  \
+  (   ((__POWER_MODE__) == LL_COMP_POWERMODE_HIGHSPEED)                        \
+   || ((__POWER_MODE__) == LL_COMP_POWERMODE_MEDIUMSPEED)                      \
+   || ((__POWER_MODE__) == LL_COMP_POWERMODE_LOWPOWER)                         \
+   || ((__POWER_MODE__) == LL_COMP_POWERMODE_ULTRALOWPOWER)                    \
+  )
+
+/* Note: On this STM32 serie, comparator input plus parameters are            */
+/*       the different depending on COMP instances.                           */
+#define IS_LL_COMP_INPUT_PLUS(__COMP_INSTANCE__, __INPUT_PLUS__)               \
+  (((__COMP_INSTANCE__) == COMP1)                                              \
+    ? (                                                                        \
+          ((__INPUT_PLUS__) == LL_COMP_INPUT_PLUS_IO1)                         \
+       || ((__INPUT_PLUS__) == LL_COMP_INPUT_PLUS_DAC1_CH1)                    \
+      )                                                                        \
+      :                                                                        \
+      (                                                                        \
+          ((__INPUT_PLUS__) == LL_COMP_INPUT_PLUS_IO1)                         \
+      )                                                                        \
+  )
+
+/* Note: On this STM32 serie, comparator input minus parameters are           */
+/*       the same on all COMP instances.                                      */
+/*       However, comparator instance kept as macro parameter for             */
+/*       compatibility with other STM32 families.                             */
+#define IS_LL_COMP_INPUT_MINUS(__COMP_INSTANCE__, __INPUT_MINUS__)             \
+  (   ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_1_4VREFINT)                    \
+   || ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_1_2VREFINT)                    \
+   || ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_3_4VREFINT)                    \
+   || ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_VREFINT)                       \
+   || ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_DAC1_CH1)                      \
+   || ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_DAC1_CH2)                      \
+   || ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_IO1)                           \
+  )
+
+#define IS_LL_COMP_INPUT_HYSTERESIS(__INPUT_HYSTERESIS__)                      \
+  (   ((__INPUT_HYSTERESIS__) == LL_COMP_HYSTERESIS_NONE)                      \
+   || ((__INPUT_HYSTERESIS__) == LL_COMP_HYSTERESIS_LOW)                       \
+   || ((__INPUT_HYSTERESIS__) == LL_COMP_HYSTERESIS_MEDIUM)                    \
+   || ((__INPUT_HYSTERESIS__) == LL_COMP_HYSTERESIS_HIGH)                      \
+  )
+
+#define IS_LL_COMP_OUTPUT_SELECTION(__OUTPUT_SELECTION__)                      \
+  (   ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_NONE)                          \
+   || ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM1_BKIN)                     \
+   || ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM1_IC1)                      \
+   || ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM1_OCCLR)                    \
+   || ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM2_IC4)                      \
+   || ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM2_OCCLR)                    \
+   || ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM3_IC1)                      \
+   || ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM3_OCCLR)                    \
+  )
+
+#define IS_LL_COMP_OUTPUT_POLARITY(__POLARITY__)                               \
+  (   ((__POLARITY__) == LL_COMP_OUTPUTPOL_NONINVERTED)                        \
+   || ((__POLARITY__) == LL_COMP_OUTPUTPOL_INVERTED)                           \
+  )
+
+/**
+  * @}
+  */
+
+
+/* Private function prototypes -----------------------------------------------*/
+
+/* Exported functions --------------------------------------------------------*/
+/** @addtogroup COMP_LL_Exported_Functions
+  * @{
+  */
+
+/** @addtogroup COMP_LL_EF_Init
+  * @{
+  */
+
+/**
+  * @brief  De-initialize registers of the selected COMP instance
+  *         to their default reset values.
+  * @note   If comparator is locked, de-initialization by software is
+  *         not possible.
+  *         The only way to unlock the comparator is a device hardware reset.
+  * @param  COMPx COMP instance
+  * @retval An ErrorStatus enumeration value:
+  *          - SUCCESS: COMP registers are de-initialized
+  *          - ERROR: COMP registers are not de-initialized
+  */
+ErrorStatus LL_COMP_DeInit(COMP_TypeDef *COMPx)
+{
+  ErrorStatus status = SUCCESS;
+  
+  /* Check the parameters */
+  assert_param(IS_COMP_ALL_INSTANCE(COMPx));
+  
+  /* Note: Hardware constraint (refer to description of this function):       */
+  /*       COMP instance must not be locked.                                  */
+  if(LL_COMP_IsLocked(COMPx) == 0U)
+  {
+    /* Note: Connection switch is applicable only to COMP instance COMP1,     */
+    /*       therefore is COMP2 is selected the equivalent bit is             */
+    /*       kept unmodified.                                                 */
+    if(COMPx == COMP1)
+    {
+      CLEAR_BIT(COMP->CSR,
+                (  COMP_CSR_COMP1MODE
+                 | COMP_CSR_COMP1INSEL
+                 | COMP_CSR_COMP1SW1
+                 | COMP_CSR_COMP1OUTSEL
+                 | COMP_CSR_COMP1HYST
+                 | COMP_CSR_COMP1POL
+                 | COMP_CSR_COMP1EN
+                ) << __COMP_BITOFFSET_INSTANCE(COMPx)
+               );
+    }
+    else
+    {
+      CLEAR_BIT(COMP->CSR,
+                (  COMP_CSR_COMP1MODE
+                 | COMP_CSR_COMP1INSEL
+                 | COMP_CSR_COMP1OUTSEL
+                 | COMP_CSR_COMP1HYST
+                 | COMP_CSR_COMP1POL
+                 | COMP_CSR_COMP1EN
+                ) << __COMP_BITOFFSET_INSTANCE(COMPx)
+               );
+    }
+    
+  }
+  else
+  {
+    /* Comparator instance is locked: de-initialization by software is         */
+    /* not possible.                                                           */
+    /* The only way to unlock the comparator is a device hardware reset.       */
+    status = ERROR;
+  }
+  
+  return status;
+}
+
+/**
+  * @brief  Initialize some features of COMP instance.
+  * @note   This function configures features of the selected COMP instance.
+  *         Some features are also available at scope COMP common instance
+  *         (common to several COMP instances).
+  *         Refer to functions having argument "COMPxy_COMMON" as parameter.
+  * @param  COMPx COMP instance
+  * @param  COMP_InitStruct Pointer to a @ref LL_COMP_InitTypeDef structure
+  * @retval An ErrorStatus enumeration value:
+  *          - SUCCESS: COMP registers are initialized
+  *          - ERROR: COMP registers are not initialized
+  */
+ErrorStatus LL_COMP_Init(COMP_TypeDef *COMPx, LL_COMP_InitTypeDef *COMP_InitStruct)
+{
+  ErrorStatus status = SUCCESS;
+  
+  /* Check the parameters */
+  assert_param(IS_COMP_ALL_INSTANCE(COMPx));
+  assert_param(IS_LL_COMP_POWER_MODE(COMP_InitStruct->PowerMode));
+  assert_param(IS_LL_COMP_INPUT_PLUS(COMPx, COMP_InitStruct->InputPlus));
+  assert_param(IS_LL_COMP_INPUT_MINUS(COMPx, COMP_InitStruct->InputMinus));
+  assert_param(IS_LL_COMP_INPUT_HYSTERESIS(COMP_InitStruct->InputHysteresis));
+  assert_param(IS_LL_COMP_OUTPUT_SELECTION(COMP_InitStruct->OutputSelection));
+  assert_param(IS_LL_COMP_OUTPUT_POLARITY(COMP_InitStruct->OutputPolarity));
+  
+  /* Note: Hardware constraint (refer to description of this function)        */
+  /*       COMP instance must not be locked.                                  */
+  if(LL_COMP_IsLocked(COMPx) == 0U)
+  {
+    /* Configuration of comparator instance :                                 */
+    /*  - PowerMode                                                           */
+    /*  - InputPlus                                                           */
+    /*  - InputMinus                                                          */
+    /*  - InputHysteresis                                                     */
+    /*  - OutputSelection                                                     */
+    /*  - OutputPolarity                                                      */
+    /* Note: Connection switch is applicable only to COMP instance COMP1,     */
+    /*       therefore is COMP2 is selected the equivalent bit is             */
+    /*       kept unmodified.                                                 */
+    if(COMPx == COMP1)
+    {
+      MODIFY_REG(COMP->CSR,
+                 (  COMP_CSR_COMP1MODE
+                  | COMP_CSR_COMP1INSEL
+                  | COMP_CSR_COMP1SW1
+                  | COMP_CSR_COMP1OUTSEL
+                  | COMP_CSR_COMP1HYST
+                  | COMP_CSR_COMP1POL
+                 ) << __COMP_BITOFFSET_INSTANCE(COMPx)
+                ,
+                 (  COMP_InitStruct->PowerMode
+                  | COMP_InitStruct->InputPlus
+                  | COMP_InitStruct->InputMinus
+                  | COMP_InitStruct->InputHysteresis
+                  | COMP_InitStruct->OutputSelection
+                  | COMP_InitStruct->OutputPolarity
+                 ) << __COMP_BITOFFSET_INSTANCE(COMPx)
+                );
+    }
+    else
+    {
+      MODIFY_REG(COMP->CSR,
+                 (  COMP_CSR_COMP1MODE
+                  | COMP_CSR_COMP1INSEL
+                  | COMP_CSR_COMP1OUTSEL
+                  | COMP_CSR_COMP1HYST
+                  | COMP_CSR_COMP1POL
+                 ) << __COMP_BITOFFSET_INSTANCE(COMPx)
+                ,
+                 (  COMP_InitStruct->PowerMode
+                  | COMP_InitStruct->InputPlus
+                  | COMP_InitStruct->InputMinus
+                  | COMP_InitStruct->InputHysteresis
+                  | COMP_InitStruct->OutputSelection
+                  | COMP_InitStruct->OutputPolarity
+                 ) << __COMP_BITOFFSET_INSTANCE(COMPx)
+                );
+    }
+    
+  }
+  else
+  {
+    /* Initialization error: COMP instance is locked.                         */
+    status = ERROR;
+  }
+  
+  return status;
+}
+
+/**
+  * @brief Set each @ref LL_COMP_InitTypeDef field to default value.
+  * @param COMP_InitStruct: pointer to a @ref LL_COMP_InitTypeDef structure
+  *                         whose fields will be set to default values.
+  * @retval None
+  */
+void LL_COMP_StructInit(LL_COMP_InitTypeDef *COMP_InitStruct)
+{
+  /* Set COMP_InitStruct fields to default values */
+  COMP_InitStruct->PowerMode            = LL_COMP_POWERMODE_ULTRALOWPOWER;
+  COMP_InitStruct->InputPlus            = LL_COMP_INPUT_PLUS_IO1;
+  COMP_InitStruct->InputMinus           = LL_COMP_INPUT_MINUS_VREFINT;
+  COMP_InitStruct->InputHysteresis      = LL_COMP_HYSTERESIS_NONE;
+  COMP_InitStruct->OutputSelection      = LL_COMP_OUTPUT_NONE;
+  COMP_InitStruct->OutputPolarity       = LL_COMP_OUTPUTPOL_NONINVERTED;
+}
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+#endif /* COMP1 || COMP2 */
+
+/**
+  * @}
+  */
+
+#endif /* USE_FULL_LL_DRIVER */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/