diff options
Diffstat (limited to 'bsps/arm/stm32h7/hal/stm32h7xx_ll_opamp.c')
| -rw-r--r-- | bsps/arm/stm32h7/hal/stm32h7xx_ll_opamp.c | 230 |
1 files changed, 230 insertions, 0 deletions
diff --git a/bsps/arm/stm32h7/hal/stm32h7xx_ll_opamp.c b/bsps/arm/stm32h7/hal/stm32h7xx_ll_opamp.c new file mode 100644 index 0000000000..559da513f1 --- /dev/null +++ b/bsps/arm/stm32h7/hal/stm32h7xx_ll_opamp.c @@ -0,0 +1,230 @@ +/**
+ ******************************************************************************
+ * @file stm32h7xx_ll_opamp.c
+ * @author MCD Application Team
+ * @brief OPAMP LL module driver
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>© Copyright (c) 2017 STMicroelectronics.
+ * All rights reserved.</center></h2>
+ *
+ * This software component is licensed by ST under BSD 3-Clause license,
+ * the "License"; You may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ * opensource.org/licenses/BSD-3-Clause
+ *
+ ******************************************************************************
+ */
+#if defined(USE_FULL_LL_DRIVER)
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32h7xx_ll_opamp.h"
+
+#ifdef USE_FULL_ASSERT
+ #include "stm32_assert.h"
+#else
+ #define assert_param(expr) ((void)0U)
+#endif
+
+/** @addtogroup STM32H7xx_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_HIGHSPEED))
+
+#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) \
+ || ((__FUNCTIONAL_MODE__) == LL_OPAMP_MODE_PGA_IO0) \
+ || ((__FUNCTIONAL_MODE__) == LL_OPAMP_MODE_PGA_IO0_BIAS) \
+ || ((__FUNCTIONAL_MODE__) == LL_OPAMP_MODE_PGA_IO0_IO1_BIAS) \
+ )
+
+#if defined(DAC2)
+#define IS_LL_OPAMP_INPUT_NONINVERTING(__INPUT_NONINVERTING__) \
+ ( ((__INPUT_NONINVERTING__) == LL_OPAMP_INPUT_NONINVERT_IO0) \
+ || ((__INPUT_NONINVERTING__) == LL_OPAMP_INPUT_NONINVERT_DAC) \
+ || ((__INPUT_NONINVERTING__) == LL_OPAMP_INPUT_NONINVERT_DAC2) \
+ )
+#else
+#define IS_LL_OPAMP_INPUT_NONINVERTING(__INPUT_NONINVERTING__) \
+ ( ((__INPUT_NONINVERTING__) == LL_OPAMP_INPUT_NONINVERT_IO0) \
+ || ((__INPUT_NONINVERTING__) == LL_OPAMP_INPUT_NONINVERT_DAC) \
+ )
+#endif /* DAC2 */
+
+
+#define IS_LL_OPAMP_INPUT_INVERTING(__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.
+ * @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 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.
+ * @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)
+{
+ ErrorStatus status = SUCCESS;
+
+ /* 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(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(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_OPAHSM
+ | OPAMP_CSR_CALON
+ | OPAMP_CSR_VMSEL
+ | OPAMP_CSR_VPSEL
+ | OPAMP_CSR_PGGAIN_2 | OPAMP_CSR_PGGAIN_1
+ ,
+ (OPAMP_InitStruct->PowerMode & OPAMP_POWERMODE_CSR_BIT_MASK)
+ | OPAMP_InitStruct->FunctionalMode
+ | OPAMP_InitStruct->InputNonInverting
+ | OPAMP_InitStruct->InputInverting
+ );
+ }
+ else
+ {
+ MODIFY_REG(OPAMPx->CSR,
+ OPAMP_CSR_OPAHSM
+ | OPAMP_CSR_CALON
+ | OPAMP_CSR_VMSEL
+ | OPAMP_CSR_VPSEL
+ | OPAMP_CSR_PGGAIN_2 | OPAMP_CSR_PGGAIN_1
+ ,
+ (OPAMP_InitStruct->PowerMode & OPAMP_POWERMODE_CSR_BIT_MASK)
+ | LL_OPAMP_MODE_FOLLOWER
+ | OPAMP_InitStruct->InputNonInverting
+ );
+ }
+
+ return status;
+}
+
+/**
+ * @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****/
|