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diff --git a/thirdparty/STM32_USB-FS-Device_Lib_V4.0.0/Libraries/STM32L1xx_StdPeriph_Driver/src/stm32l1xx_opamp.c b/thirdparty/STM32_USB-FS-Device_Lib_V4.0.0/Libraries/STM32L1xx_StdPeriph_Driver/src/stm32l1xx_opamp.c
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+/**
+ ******************************************************************************
+ * @file stm32l1xx_opamp.c
+ * @author MCD Application Team
+ * @version V1.1.1
+ * @date 05-March-2012
+ * @brief This file provides firmware functions to manage the following
+ * functionalities of the operational amplifiers (opamp) peripheral:
+ * + Initialization and configuration
+ * + Calibration management
+ *
+ * @verbatim
+ ==============================================================================
+ ##### How to use this driver #####
+ ==============================================================================
+ [..] The device integrates three independent rail-to-rail operational amplifiers
+ OPAMP1, OPAMP2 and OPAMP3:
+ (+) Internal connections to the ADC.
+ (+) Internal connections to the DAC.
+ (+) Internal connection to COMP1 (only OPAMP3).
+ (+) Internal connection for unity gain (voltage follower) configuration.
+ (+) Calibration capability.
+ (+) Selectable gain-bandwidth (2MHz in normal mode, 500KHz in low power mode).
+ [..]
+ (#) COMP AHB clock must be enabled to get write access
+ to OPAMP registers using
+ (#) RCC_APB1PeriphClockCmd(RCC_APB1Periph_COMP, ENABLE)
+
+ (#) Configure the corresponding GPIO to OPAMPx INP, OPAMPx_INN (if used)
+ and OPAMPx_OUT in analog mode.
+
+ (#) Configure (close/open) the OPAMP switches using OPAMP_SwitchCmd()
+
+ (#) Enable the OPAMP peripheral using OPAMP_Cmd()
+
+ -@- In order to use OPAMP outputs as ADC inputs, the opamps must be enabled
+ and the ADC must use the OPAMP output channel number:
+ (+@) OPAMP1 output is connected to ADC channel 3.
+ (+@) OPAMP2 output is connected to ADC channel 8.
+ (+@) OPAMP3 output is connected to ADC channel 13 (SW1 switch must be closed).
+
+ * @endverbatim
+ *
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
+ *
+ * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+ * You may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.st.com/software_license_agreement_liberty_v2
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ ******************************************************************************
+ */
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32l1xx_opamp.h"
+
+
+/** @addtogroup STM32L1xx_StdPeriph_Driver
+ * @{
+ */
+
+/** @defgroup OPAMP
+ * @brief OPAMP driver modules
+ * @{
+ */
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* Private function prototypes -----------------------------------------------*/
+/* Private functions ---------------------------------------------------------*/
+
+/** @defgroup OPAMP_Private_Functions
+ * @{
+ */
+
+/** @defgroup OPAMP_Group1 Initialization and configuration
+ * @brief Initialization and configuration
+ *
+@verbatim
+ ===============================================================================
+ ##### Initialization and configuration #####
+ ===============================================================================
+
+@endverbatim
+ * @{
+ */
+
+/**
+ * @brief Deinitialize the OPAMPs register to its default reset value.
+ * @note At startup, OTR and LPOTR registers are set to factory programmed values.
+ * @param None.
+ * @retval None.
+ */
+void OPAMP_DeInit(void)
+{
+ /*!< Set OPAMP_CSR register to reset value */
+ OPAMP->CSR = 0x00010101;
+ /*!< Set OPAMP_OTR register to reset value */
+ OPAMP->OTR = (uint32_t)(* (uint32_t*)FLASH_R_BASE + 0x00000038);
+ /*!< Set OPAMP_LPOTR register to reset value */
+ OPAMP->LPOTR = (uint32_t)(* (uint32_t*)FLASH_R_BASE + 0x0000003C);
+}
+
+/**
+ * @brief Close or Open the OPAMP switches.
+ * @param OPAMP_OPAMPxSwitchy: selects the OPAMPx switch.
+ * This parameter can be any combinations of the following values:
+ * @arg OPAMP_OPAMP1Switch3: used to connect internally OPAMP1 output to
+ * OPAMP1 negative input (internal follower)
+ * @arg OPAMP_OPAMP1Switch4: used to connect PA2 to OPAMP1 negative input
+ * @arg OPAMP_OPAMP1Switch5: used to connect PA1 to OPAMP1 positive input
+ * @arg OPAMP_OPAMP1Switch6: used to connect DAC_OUT1 to OPAMP1 positive input
+ * @arg OPAMP_OPAMP1SwitchANA: used to meet 1 nA input leakage
+ * @arg OPAMP_OPAMP2Switch3: used to connect internally OPAMP2 output to
+ * OPAMP2 negative input (internal follower)
+ * @arg OPAMP_OPAMP2Switch4: used to connect PA7 to OPAMP2 negative input
+ * @arg OPAMP_OPAMP2Switch5: used to connect PA6 to OPAMP2 positive input
+ * @arg OPAMP_OPAMP2Switch6: used to connect DAC_OUT1 to OPAMP2 positive input
+ * @arg OPAMP_OPAMP2Switch7: used to connect DAC_OUT2 to OPAMP2 positive input
+ * @arg OPAMP_OPAMP2SwitchANA: used to meet 1 nA input leakage
+ * @arg OPAMP_OPAMP3Switch3: used to connect internally OPAMP3 output to
+ * OPAMP3 negative input (internal follower)
+ * @arg OPAMP_OPAMP3Switch4: used to connect PC2 to OPAMP3 negative input
+ * @arg OPAMP_OPAMP3Switch5: used to connect PC1 to OPAMP3 positive input
+ * @arg OPAMP_OPAMP3Switch6: used to connect DAC_OUT1 to OPAMP3 positive input
+ * @arg OPAMP_OPAMP3SwitchANA: used to meet 1 nA input leakage on negative input
+ *
+ * @param NewState: New state of the OPAMP switch.
+ * This parameter can be:
+ * ENABLE to close the OPAMP switch
+ * or DISABLE to open the OPAMP switch
+ * @note OPAMP_OPAMP2Switch6 and OPAMP_OPAMP2Switch7 mustn't be closed together.
+ * @retval None
+ */
+void OPAMP_SwitchCmd(uint32_t OPAMP_OPAMPxSwitchy, FunctionalState NewState)
+{
+ /* Check the parameter */
+ assert_param(IS_OPAMP_SWITCH(OPAMP_OPAMPxSwitchy));
+ assert_param(IS_FUNCTIONAL_STATE(NewState));
+
+ if (NewState != DISABLE)
+ {
+ /* Close the selected switches */
+ OPAMP->CSR |= (uint32_t) OPAMP_OPAMPxSwitchy;
+ }
+ else
+ {
+ /* Open the selected switches */
+ OPAMP->CSR &= (~(uint32_t)OPAMP_OPAMPxSwitchy);
+ }
+}
+
+/**
+ * @brief Enable or disable the OPAMP peripheral.
+ * @param OPAMP_Selection: the selected OPAMP.
+ * This parameter can be one of the following values:
+ * @arg OPAMP_Selection_OPAMP1: OPAMP1 is selected
+ * @arg OPAMP_Selection_OPAMP2: OPAMP2 is selected
+ * @arg OPAMP_Selection_OPAMP3: OPAMP3 is selected
+ * @param NewState: new state of the selected OPAMP peripheral.
+ * This parameter can be: ENABLE or DISABLE.
+ * @retval None
+ */
+void OPAMP_Cmd(uint32_t OPAMP_Selection, FunctionalState NewState)
+{
+ /* Check the parameter */
+ assert_param(IS_OPAMP_ALL_PERIPH(OPAMP_Selection));
+ assert_param(IS_FUNCTIONAL_STATE(NewState));
+
+ if (NewState != DISABLE)
+ {
+ /* Enable the selected OPAMP */
+ OPAMP->CSR &= (~(uint32_t) OPAMP_Selection);
+ }
+ else
+ {
+ /* Disable the selected OPAMP */
+ OPAMP->CSR |= (uint32_t) OPAMP_Selection;
+ }
+}
+
+/**
+ * @brief Enable or disable the low power mode for OPAMP peripheral.
+ * @param OPAMP_Selection: the selected OPAMP.
+ * This parameter can be one of the following values:
+ * @arg OPAMP_Selection_OPAMP1: OPAMP1 selected
+ * @arg OPAMP_Selection_OPAMP2: OPAMP2 selected
+ * @arg OPAMP_Selection_OPAMP3: OPAMP3 selected
+ * @param NewState: new low power state of the selected OPAMP peripheral.
+ * This parameter can be: ENABLE or DISABLE.
+ * @retval None
+ */
+void OPAMP_LowPowerCmd(uint32_t OPAMP_Selection, FunctionalState NewState)
+{
+ /* Check the parameter */
+ assert_param(IS_OPAMP_ALL_PERIPH(OPAMP_Selection));
+ assert_param(IS_FUNCTIONAL_STATE(NewState));
+
+ if (NewState != DISABLE)
+ {
+ /* Set the selected OPAMP in low power mode */
+ OPAMP->CSR |= (uint32_t) (OPAMP_Selection << 7);
+ }
+ else
+ {
+ /* Disable the low power mode for the selected OPAMP */
+ OPAMP->CSR &= (~(uint32_t) (OPAMP_Selection << 7));
+ }
+}
+
+/**
+ * @brief Select the OPAMP power range.
+ * @note The OPAMP power range selection must be performed while OPAMPs are powered down.
+ * @param OPAMP_Range: the selected OPAMP power range.
+ * This parameter can be one of the following values:
+ * @arg OPAMP_PowerRange_Low: Low power range is selected (VDDA is lower than 2.4V).
+ * @arg OPAMP_PowerRange_High: High power range is selected (VDDA is higher than 2.4V).
+ * @retval None
+ */
+void OPAMP_PowerRangeSelect(uint32_t OPAMP_PowerRange)
+{
+ /* Check the parameter */
+ assert_param(IS_OPAMP_RANGE(OPAMP_PowerRange));
+
+ /* Reset the OPAMP range bit */
+ OPAMP->CSR &= (~(uint32_t) (OPAMP_CSR_AOP_RANGE));
+
+ /* Select the OPAMP power range */
+ OPAMP->CSR |= OPAMP_PowerRange;
+}
+
+/**
+ * @}
+ */
+
+/** @defgroup OPAMP_Group2 Calibration functions
+ * @brief Calibration functions
+ *
+@verbatim
+ ===============================================================================
+ ##### Calibration functions #####
+ ===============================================================================
+
+@endverbatim
+ * @{
+ */
+
+/**
+ * @brief Select the trimming mode.
+ * @param OffsetTrimming: the selected offset trimming mode.
+ * This parameter can be one of the following values:
+ * @arg OffsetTrimming_Factory: factory trimming values are used for offset
+ * calibration.
+ * @arg OffsetTrimming_User: user trimming values are used for offset
+ * calibration.
+ * @note When OffsetTrimming_User is selected, use OPAMP_OffsetTrimConfig()
+ * function or OPAMP_OffsetTrimLowPowerConfig() function to adjust
+ * trimming value.
+ * @retval None
+ */
+void OPAMP_OffsetTrimmingModeSelect(uint32_t OPAMP_Trimming)
+{
+ /* Check the parameter */
+ assert_param(IS_OPAMP_TRIMMING(OPAMP_Trimming));
+
+ /* Reset the OPAMP_OTR range bit */
+ OPAMP->CSR &= (~(uint32_t) (OPAMP_OTR_OT_USER));
+
+ /* Select the OPAMP offset trimming */
+ OPAMP->CSR |= OPAMP_Trimming;
+
+}
+
+/**
+ * @brief Configure the trimming value of OPAMPs in normal mode.
+ * @param OPAMP_Selection: the selected OPAMP.
+ * This parameter can be one of the following values:
+ * @arg OPAMP_Selection_OPAMP1: OPAMP1 is selected to configure the trimming value.
+ * @arg OPAMP_Selection_OPAMP2: OPAMP2 is selected to configure the trimming value.
+ * @arg OPAMP_Selection_OPAMP3: OPAMP3 is selected to configure the trimming value.
+ * @param OPAMP_Input: the selected OPAMP input.
+ * This parameter can be one of the following values:
+ * @arg OPAMP_Input_NMOS: NMOS input is selected to configure the trimming value.
+ * @arg OPAMP_Input_PMOS: PMOS input is selected to configure the trimming value.
+ * @param OPAMP_TrimValue: the trimming value. This parameter can be any value lower
+ * or equal to 0x0000001F.
+ * @retval None
+ */
+void OPAMP_OffsetTrimConfig(uint32_t OPAMP_Selection, uint32_t OPAMP_Input, uint32_t OPAMP_TrimValue)
+{
+ uint32_t tmpreg = 0;
+
+ /* Check the parameter */
+ assert_param(IS_OPAMP_ALL_PERIPH(OPAMP_Selection));
+ assert_param(IS_OPAMP_INPUT(OPAMP_Input));
+ assert_param(IS_OPAMP_TRIMMINGVALUE(OPAMP_TrimValue));
+
+ /* Get the OPAMP_OTR value */
+ tmpreg = OPAMP->OTR;
+
+ if(OPAMP_Selection == OPAMP_Selection_OPAMP1)
+ {
+ /* Reset the OPAMP inputs selection */
+ tmpreg &= (uint32_t)~(OPAMP_CSR_OPA1CAL_L | OPAMP_CSR_OPA1CAL_H);
+ /* Select the OPAMP input */
+ tmpreg |= OPAMP_Input;
+
+ if(OPAMP_Input == OPAMP_Input_PMOS)
+ {
+ /* Reset the trimming value corresponding to OPAMP1 PMOS input */
+ tmpreg &= (0xFFFFFFE0);
+ /* Set the new trimming value corresponding to OPAMP1 PMOS input */
+ tmpreg |= (OPAMP_TrimValue);
+ }
+ else
+ {
+ /* Reset the trimming value corresponding to OPAMP1 NMOS input */
+ tmpreg &= (0xFFFFFC1F);
+ /* Set the new trimming value corresponding to OPAMP1 NMOS input */
+ tmpreg |= (OPAMP_TrimValue<<5);
+ }
+ }
+ else if (OPAMP_Selection == OPAMP_Selection_OPAMP2)
+ {
+ /* Reset the OPAMP inputs selection */
+ tmpreg &= (uint32_t)~(OPAMP_CSR_OPA2CAL_L | OPAMP_CSR_OPA2CAL_H);
+ /* Select the OPAMP input */
+ tmpreg |= (uint32_t)(OPAMP_Input<<8);
+
+ if(OPAMP_Input == OPAMP_Input_PMOS)
+ {
+ /* Reset the trimming value corresponding to OPAMP2 PMOS input */
+ tmpreg &= (0xFFFF83FF);
+ /* Set the new trimming value corresponding to OPAMP2 PMOS input */
+ tmpreg |= (OPAMP_TrimValue<<10);
+ }
+ else
+ {
+ /* Reset the trimming value corresponding to OPAMP2 NMOS input */
+ tmpreg &= (0xFFF07FFF);
+ /* Set the new trimming value corresponding to OPAMP2 NMOS input */
+ tmpreg |= (OPAMP_TrimValue<<15);
+ }
+ }
+ else
+ {
+ /* Reset the OPAMP inputs selection */
+ tmpreg &= (uint32_t)~(OPAMP_CSR_OPA3CAL_L | OPAMP_CSR_OPA3CAL_H);
+ /* Select the OPAMP input */
+ tmpreg |= (uint32_t)(OPAMP_Input<<16);
+
+ if(OPAMP_Input == OPAMP_Input_PMOS)
+ {
+ /* Reset the trimming value corresponding to OPAMP3 PMOS input */
+ tmpreg &= (0xFE0FFFFF);
+ /* Set the new trimming value corresponding to OPAMP3 PMOS input */
+ tmpreg |= (OPAMP_TrimValue<<20);
+ }
+ else
+ {
+ /* Reset the trimming value corresponding to OPAMP3 NMOS input */
+ tmpreg &= (0xC1FFFFFF);
+ /* Set the new trimming value corresponding to OPAMP3 NMOS input */
+ tmpreg |= (OPAMP_TrimValue<<25);
+ }
+ }
+
+ /* Set the OPAMP_OTR register */
+ OPAMP->OTR = tmpreg;
+}
+
+/**
+ * @brief Configure the trimming value of OPAMPs in low power mode.
+ * @param OPAMP_Selection: the selected OPAMP.
+ * This parameter can be one of the following values:
+ * @arg OPAMP_Selection_OPAMP1: OPAMP1 is selected to configure the trimming value.
+ * @arg OPAMP_Selection_OPAMP2: OPAMP2 is selected to configure the trimming value.
+ * @arg OPAMP_Selection_OPAMP3: OPAMP3 is selected to configure the trimming value.
+ * @param OPAMP_Input: the selected OPAMP input.
+ * This parameter can be one of the following values:
+ * @arg OPAMP_Input_NMOS: NMOS input is selected to configure the trimming value.
+ * @arg OPAMP_Input_PMOS: PMOS input is selected to configure the trimming value.
+ * @param OPAMP_TrimValue: the trimming value.
+ * This parameter can be any value lower or equal to 0x0000001F.
+ * @retval None
+ */
+void OPAMP_OffsetTrimLowPowerConfig(uint32_t OPAMP_Selection, uint32_t OPAMP_Input, uint32_t OPAMP_TrimValue)
+{
+ uint32_t tmpreg = 0;
+
+ /* Check the parameter */
+ assert_param(IS_OPAMP_ALL_PERIPH(OPAMP_Selection));
+ assert_param(IS_OPAMP_INPUT(OPAMP_Input));
+ assert_param(IS_OPAMP_TRIMMINGVALUE(OPAMP_TrimValue));
+
+ /* Get the OPAMP_LPOTR value */
+ tmpreg = OPAMP->LPOTR;
+
+ if(OPAMP_Selection == OPAMP_Selection_OPAMP1)
+ {
+ /* Reset the OPAMP inputs selection */
+ tmpreg &= (uint32_t)~(OPAMP_CSR_OPA1CAL_L | OPAMP_CSR_OPA1CAL_H);
+ /* Select the OPAMP input */
+ tmpreg |= OPAMP_Input;
+
+ if(OPAMP_Input == OPAMP_Input_PMOS)
+ {
+ /* Reset the trimming value corresponding to OPAMP1 PMOS input */
+ tmpreg &= (0xFFFFFFE0);
+ /* Set the new trimming value corresponding to OPAMP1 PMOS input */
+ tmpreg |= (OPAMP_TrimValue);
+ }
+ else
+ {
+ /* Reset the trimming value corresponding to OPAMP1 NMOS input */
+ tmpreg &= (0xFFFFFC1F);
+ /* Set the new trimming value corresponding to OPAMP1 NMOS input */
+ tmpreg |= (OPAMP_TrimValue<<5);
+ }
+ }
+ else if (OPAMP_Selection == OPAMP_Selection_OPAMP2)
+ {
+ /* Reset the OPAMP inputs selection */
+ tmpreg &= (uint32_t)~(OPAMP_CSR_OPA2CAL_L | OPAMP_CSR_OPA2CAL_H);
+ /* Select the OPAMP input */
+ tmpreg |= (uint32_t)(OPAMP_Input<<8);
+
+ if(OPAMP_Input == OPAMP_Input_PMOS)
+ {
+ /* Reset the trimming value corresponding to OPAMP2 PMOS input */
+ tmpreg &= (0xFFFF83FF);
+ /* Set the new trimming value corresponding to OPAMP2 PMOS input */
+ tmpreg |= (OPAMP_TrimValue<<10);
+ }
+ else
+ {
+ /* Reset the trimming value corresponding to OPAMP2 NMOS input */
+ tmpreg &= (0xFFF07FFF);
+ /* Set the new trimming value corresponding to OPAMP2 NMOS input */
+ tmpreg |= (OPAMP_TrimValue<<15);
+ }
+ }
+ else
+ {
+ /* Reset the OPAMP inputs selection */
+ tmpreg &= (uint32_t)~(OPAMP_CSR_OPA3CAL_L | OPAMP_CSR_OPA3CAL_H);
+ /* Select the OPAMP input */
+ tmpreg |= (uint32_t)(OPAMP_Input<<16);
+
+ if(OPAMP_Input == OPAMP_Input_PMOS)
+ {
+ /* Reset the trimming value corresponding to OPAMP3 PMOS input */
+ tmpreg &= (0xFE0FFFFF);
+ /* Set the new trimming value corresponding to OPAMP3 PMOS input */
+ tmpreg |= (OPAMP_TrimValue<<20);
+ }
+ else
+ {
+ /* Reset the trimming value corresponding to OPAMP3 NMOS input */
+ tmpreg &= (0xC1FFFFFF);
+ /* Set the new trimming value corresponding to OPAMP3 NMOS input */
+ tmpreg |= (OPAMP_TrimValue<<25);
+ }
+ }
+
+ /* Set the OPAMP_LPOTR register */
+ OPAMP->LPOTR = tmpreg;
+}
+
+/**
+ * @brief Checks whether the specified OPAMP calibration flag is set or not.
+ * @note User should wait until calibration flag change the value when changing
+ * the trimming value.
+ * @param OPAMP_Selection: the selected OPAMP.
+ * This parameter can be one of the following values:
+ * @arg OPAMP_Selection_OPAMP1: OPAMP1 is selected.
+ * @arg OPAMP_Selection_OPAMP2: OPAMP2 is selected.
+ * @arg OPAMP_Selection_OPAMP3: OPAMP3 is selected.
+ * @retval The new state of the OPAMP calibration flag (SET or RESET).
+ */
+FlagStatus OPAMP_GetFlagStatus(uint32_t OPAMP_Selection)
+{
+ FlagStatus bitstatus = RESET;
+ uint32_t tmpreg = 0;
+
+ /* Check the parameter */
+ assert_param(IS_OPAMP_ALL_PERIPH(OPAMP_Selection));
+
+ /* Get the CSR register value */
+ tmpreg = OPAMP->CSR;
+
+ /* Check if OPAMP1 is selected */
+ if(OPAMP_Selection == OPAMP_Selection_OPAMP1)
+ {
+ /* Check OPAMP1 CAL bit status */
+ if ((tmpreg & OPAMP_CSR_OPA1CALOUT) != (uint32_t)RESET)
+ {
+ bitstatus = SET;
+ }
+ else
+ {
+ bitstatus = RESET;
+ }
+ }
+ /* Check if OPAMP2 is selected */
+ else if(OPAMP_Selection == OPAMP_Selection_OPAMP2)
+ {
+ /* Check OPAMP2 CAL bit status */
+ if ((tmpreg & OPAMP_CSR_OPA2CALOUT) != (uint32_t)RESET)
+ {
+ bitstatus = SET;
+ }
+ else
+ {
+ bitstatus = RESET;
+ }
+ }
+ else
+ {
+ /* Check OPAMP3 CAL bit status */
+ if ((tmpreg & OPAMP_CSR_OPA3CALOUT) != (uint32_t)RESET)
+ {
+ bitstatus = SET;
+ }
+ else
+ {
+ bitstatus = RESET;
+ }
+ }
+ return bitstatus;
+}
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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