Diff: HAL_L476/stm32l4xx_ll_opamp.c

Revision:

1:d0dfbce63a89

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/HAL_L476/stm32l4xx_ll_opamp.c	Fri Feb 24 21:13:56 2017 +0000
@@ -0,0 +1,245 @@
+/**
+  ******************************************************************************
+  * @file    stm32l4xx_ll_opamp.c
+  * @author  MCD Application Team
+  * @version V1.5.1
+  * @date    31-May-2016
+  * @brief   OPAMP 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 "stm32l4xx_ll_opamp.h"
+
+#ifdef  USE_FULL_ASSERT
+  #include "stm32_assert.h"
+#else
+  #define assert_param(expr) ((void)0U)
+#endif
+
+/** @addtogroup STM32L4xx_LL_Driver
+  * @{
+  */
+
+#if defined (OPAMP1) || defined (OPAMP2)
+
+/** @addtogroup OPAMP_LL OPAMP
+  * @{
+  */
+
+/* Private types -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* Private constants ---------------------------------------------------------*/
+/* Private macros ------------------------------------------------------------*/
+
+/** @addtogroup OPAMP_LL_Private_Macros
+  * @{
+  */
+
+/* Check of parameters for configuration of OPAMP hierarchical scope:         */
+/* OPAMP instance.                                                            */
+
+#define IS_LL_OPAMP_POWER_MODE(__POWER_MODE__)                                 \
+  (   ((__POWER_MODE__) == LL_OPAMP_POWERMODE_NORMAL)                          \
+   || ((__POWER_MODE__) == LL_OPAMP_POWERMODE_LOWPOWER))
+
+#define IS_LL_OPAMP_FUNCTIONAL_MODE(__FUNCTIONAL_MODE__)                       \
+  (   ((__FUNCTIONAL_MODE__) == LL_OPAMP_MODE_STANDALONE)                      \
+   || ((__FUNCTIONAL_MODE__) == LL_OPAMP_MODE_FOLLOWER)                        \
+   || ((__FUNCTIONAL_MODE__) == LL_OPAMP_MODE_PGA)                             \
+  )
+
+/* Note: Comparator non-inverting inputs parameters are the same on all       */
+/*       OPAMP instances.                                                     */
+/*       However, comparator instance kept as macro parameter for             */
+/*       compatibility with other STM32 families.                             */
+#define IS_LL_OPAMP_INPUT_NONINVERTING(__OPAMPX__, __INPUT_NONINVERTING__)     \
+  (   ((__INPUT_NONINVERTING__) == LL_OPAMP_INPUT_NONINVERT_IO0)               \
+   || ((__INPUT_NONINVERTING__) == LL_OPAMP_INPUT_NONINVERT_DAC1_CH1)          \
+  )
+
+/* Note: Comparator non-inverting inputs parameters are the same on all       */
+/*       OPAMP instances.                                                     */
+/*       However, comparator instance kept as macro parameter for             */
+/*       compatibility with other STM32 families.                             */
+#define IS_LL_OPAMP_INPUT_INVERTING(__OPAMPX__, __INPUT_INVERTING__)           \
+  (   ((__INPUT_INVERTING__) == LL_OPAMP_INPUT_INVERT_IO0)                     \
+   || ((__INPUT_INVERTING__) == LL_OPAMP_INPUT_INVERT_IO1)                     \
+   || ((__INPUT_INVERTING__) == LL_OPAMP_INPUT_INVERT_CONNECT_NO)              \
+  )
+
+/**
+  * @}
+  */
+
+
+/* Private function prototypes -----------------------------------------------*/
+
+/* Exported functions --------------------------------------------------------*/
+/** @addtogroup OPAMP_LL_Exported_Functions
+  * @{
+  */
+
+/** @addtogroup OPAMP_LL_EF_Init
+  * @{
+  */
+
+/**
+  * @brief  De-initialize registers of the selected OPAMP instance
+  *         to their default reset values.
+  * @param  OPAMPx OPAMP instance
+  * @retval An ErrorStatus enumeration value:
+  *          - SUCCESS: OPAMP registers are de-initialized
+  *          - ERROR: OPAMP registers are not de-initialized
+  */
+ErrorStatus LL_OPAMP_DeInit(OPAMP_TypeDef* OPAMPx)
+{
+  ErrorStatus status = SUCCESS;
+  
+  /* Check the parameters */
+  assert_param(IS_OPAMP_ALL_INSTANCE(OPAMPx));
+  
+  LL_OPAMP_WriteReg(OPAMPx, CSR, 0x00000000U);
+
+  return status;
+}
+
+/**
+  * @brief  Initialize some features of OPAMP instance.
+  * @note   This function reset bit of calibration mode to ensure
+  *         to be in functional mode, in order to have OPAMP parameters
+  *         (inputs selection, ...) set with the corresponding OPAMP mode
+  *         to be effective.
+  * @note   This function configures features of the selected OPAMP instance.
+  *         Some features are also available at scope OPAMP common instance
+  *         (common to several OPAMP instances).
+  *         Refer to functions having argument "OPAMPxy_COMMON" as parameter.
+  * @param  OPAMPx OPAMP instance
+  * @param  OPAMP_InitStruct Pointer to a @ref LL_OPAMP_InitTypeDef structure
+  * @retval An ErrorStatus enumeration value:
+  *          - SUCCESS: OPAMP registers are initialized
+  *          - ERROR: OPAMP registers are not initialized
+  */
+ErrorStatus LL_OPAMP_Init(OPAMP_TypeDef *OPAMPx, LL_OPAMP_InitTypeDef *OPAMP_InitStruct)
+{
+  /* Check the parameters */
+  assert_param(IS_OPAMP_ALL_INSTANCE(OPAMPx));
+  assert_param(IS_LL_OPAMP_POWER_MODE(OPAMP_InitStruct->PowerMode));
+  assert_param(IS_LL_OPAMP_FUNCTIONAL_MODE(OPAMP_InitStruct->FunctionalMode));
+  assert_param(IS_LL_OPAMP_INPUT_NONINVERTING(OPAMPx, OPAMP_InitStruct->InputNonInverting));
+  
+  /* Note: OPAMP inverting input can be used with OPAMP in mode standalone    */
+  /*       or PGA with external capacitors for filtering circuit.             */
+  /*       Otherwise (OPAMP in mode follower), OPAMP inverting input is       */
+  /*       not used (not connected to GPIO pin).                              */
+  if(OPAMP_InitStruct->FunctionalMode != LL_OPAMP_MODE_FOLLOWER)
+  {
+    assert_param(IS_LL_OPAMP_INPUT_INVERTING(OPAMPx, OPAMP_InitStruct->InputInverting));
+  }
+  
+  /* Configuration of OPAMP instance :                                        */
+  /*  - PowerMode                                                             */
+  /*  - Functional mode                                                       */
+  /*  - Input non-inverting                                                   */
+  /*  - Input inverting                                                       */
+  /* Note: Bit OPAMP_CSR_CALON reset to ensure to be in functional mode.      */
+  if(OPAMP_InitStruct->FunctionalMode != LL_OPAMP_MODE_FOLLOWER)
+  {
+    MODIFY_REG(OPAMPx->CSR,
+                 OPAMP_CSR_OPALPM
+               | OPAMP_CSR_OPAMODE
+               | OPAMP_CSR_CALON
+               | OPAMP_CSR_VMSEL
+               | OPAMP_CSR_VPSEL
+              ,
+                 (OPAMP_InitStruct->PowerMode & OPAMP_POWERMODE_CSR_BIT_MASK)
+               | OPAMP_InitStruct->FunctionalMode
+               | OPAMP_InitStruct->InputNonInverting
+               | OPAMP_InitStruct->InputInverting
+              );
+  }
+  else
+  {
+    MODIFY_REG(OPAMPx->CSR,
+                 OPAMP_CSR_OPALPM
+               | OPAMP_CSR_OPAMODE
+               | OPAMP_CSR_CALON
+               | OPAMP_CSR_VMSEL
+               | OPAMP_CSR_VPSEL
+              ,
+                 (OPAMP_InitStruct->PowerMode & OPAMP_POWERMODE_CSR_BIT_MASK)
+               | LL_OPAMP_MODE_FOLLOWER
+               | OPAMP_InitStruct->InputNonInverting
+               | LL_OPAMP_INPUT_INVERT_CONNECT_NO
+              );
+  }
+  
+  return SUCCESS;
+}
+
+/**
+  * @brief Set each @ref LL_OPAMP_InitTypeDef field to default value.
+  * @param OPAMP_InitStruct pointer to a @ref LL_OPAMP_InitTypeDef structure
+  *                         whose fields will be set to default values.
+  * @retval None
+  */
+void LL_OPAMP_StructInit(LL_OPAMP_InitTypeDef *OPAMP_InitStruct)
+{
+  /* Set OPAMP_InitStruct fields to default values */
+  OPAMP_InitStruct->PowerMode         = LL_OPAMP_POWERMODE_NORMAL;
+  OPAMP_InitStruct->FunctionalMode    = LL_OPAMP_MODE_FOLLOWER;
+  OPAMP_InitStruct->InputNonInverting = LL_OPAMP_INPUT_NONINVERT_IO0;
+  /* Note: Parameter discarded if OPAMP in functional mode follower,          */
+  /*       set anyway to its default value.                                   */
+  OPAMP_InitStruct->InputInverting    = LL_OPAMP_INPUT_INVERT_CONNECT_NO;
+}
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+#endif /* OPAMP1 || OPAMP2 */
+
+/**
+  * @}
+  */
+
+#endif /* USE_FULL_LL_DRIVER */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/