745 lines
23 KiB
C
745 lines
23 KiB
C
/**
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******************************************************************************
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* @file stm32f0xx_hal_comp.c
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* @author MCD Application Team
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* @brief COMP HAL module driver.
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* This file provides firmware functions to manage the following
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* functionalities of the COMP peripheral:
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* + Initialization/de-initialization functions
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* + I/O operation functions
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* + Peripheral Control functions
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* + Peripheral State functions
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*
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@verbatim
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================================================================================
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##### COMP Peripheral features #####
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================================================================================
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[..]
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The STM32F0xx device family integrates up to 2 analog comparators COMP1 and COMP2:
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(+) The non inverting input and inverting input can be set to GPIO pins.
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(+) The COMP output is available using HAL_COMP_GetOutputLevel()
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and can be set on GPIO pins.
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(+) The COMP output can be redirected to embedded timers (TIM1, TIM2 and TIM3).
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(+) The comparators COMP1 and COMP2 can be combined in window mode.
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(+) The comparators have interrupt capability with wake-up
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from Sleep and Stop modes (through the EXTI controller):
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(++) COMP1 is internally connected to EXTI Line 21
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(++) COMP2 is internally connected to EXTI Line 22
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(+) From the corresponding IRQ handler, the right interrupt source can be retrieved with the
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macros __HAL_COMP_COMP1_EXTI_GET_FLAG() and __HAL_COMP_COMP2_EXTI_GET_FLAG().
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##### How to use this driver #####
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================================================================================
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[..]
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This driver provides functions to configure and program the Comparators of STM32F05x, STM32F07x and STM32F09x devices.
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To use the comparator, perform the following steps:
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(#) Fill in the HAL_COMP_MspInit() to
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(++) Configure the comparator input in analog mode using HAL_GPIO_Init()
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(++) Configure the comparator output in alternate function mode using HAL_GPIO_Init() to map the comparator
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output to the GPIO pin
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(++) If required enable the COMP interrupt by configuring and enabling EXTI line in Interrupt mode and
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selecting the desired sensitivity level using HAL_GPIO_Init() function. After that enable the comparator
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interrupt vector using HAL_NVIC_EnableIRQ() function.
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(#) Configure the comparator using HAL_COMP_Init() function:
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(++) Select the inverting input (input minus)
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(++) Select the non inverting input (input plus)
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(++) Select the output polarity
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(++) Select the output redirection
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(++) Select the hysteresis level
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(++) Select the power mode
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(++) Select the event/interrupt mode
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(++) Select the window mode
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-@@- HAL_COMP_Init() calls internally __HAL_RCC_SYSCFG_CLK_ENABLE() in order
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to access the comparator(s) registers.
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(#) Enable the comparator using HAL_COMP_Start() function or HAL_COMP_Start_IT() function for interrupt mode.
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(#) Use HAL_COMP_TriggerCallback() and/or HAL_COMP_GetOutputLevel() functions
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to manage comparator outputs (event/interrupt triggered and output level).
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(#) Disable the comparator using HAL_COMP_Stop() or HAL_COMP_Stop_IT()
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function.
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(#) De-initialize the comparator using HAL_COMP_DeInit() function.
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(#) For safety purposes comparator(s) can be locked using HAL_COMP_Lock() function.
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Only a MCU reset can reset that protection.
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@endverbatim
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******************************************************************************
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* @attention
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*
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* <h2><center>© COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. Neither the name of STMicroelectronics nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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******************************************************************************
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*/
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/*
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Additional Tables:
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Table 1. COMP Inputs for the STM32F05x, STM32F07x and STM32F09x devices
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+--------------------------------------------------+
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| | | COMP1 | COMP2 |
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|-----------------|----------------|---------------|
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| | 1/4 VREFINT | OK | OK |
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| | 1/2 VREFINT | OK | OK |
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| | 3/4 VREFINT | OK | OK |
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| Inverting Input | VREFINT | OK | OK |
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| | DAC1 OUT (PA4) | OK | OK |
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| | DAC2 OUT (PA5) | OK | OK |
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| | IO1 | PA0 | PA2 |
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|-----------------|----------------|-------|-------|
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| Non Inverting | | PA1 | PA3 |
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| Input | | | |
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+--------------------------------------------------+
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Table 2. COMP Outputs for the STM32F05x, STM32F07x and STM32F09x devices
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+---------------+
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| COMP1 | COMP2 |
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|-------|-------|
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| PA0 | PA2 |
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| PA6 | PA7 |
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| PA11 | PA12 |
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+---------------+
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Table 3. COMP Outputs redirection to embedded timers for the STM32F05x, STM32F07x and STM32F09x devices
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+---------------------------------+
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| COMP1 | COMP2 |
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|----------------|----------------|
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| TIM1 BKIN | TIM1 BKIN |
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| | |
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| TIM1 OCREFCLR | TIM1 OCREFCLR |
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| | |
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| TIM1 IC1 | TIM1 IC1 |
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| | |
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| TIM2 IC4 | TIM2 IC4 |
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| | |
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| TIM2 OCREFCLR | TIM2 OCREFCLR |
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| | |
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| TIM3 IC1 | TIM3 IC1 |
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| | |
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| TIM3 OCREFCLR | TIM3 OCREFCLR |
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+---------------------------------+
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "stm32f0xx_hal.h"
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#ifdef HAL_COMP_MODULE_ENABLED
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#if defined(STM32F051x8) || defined(STM32F058xx) || \
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defined(STM32F071xB) || defined(STM32F072xB) || defined(STM32F078xx) || \
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defined(STM32F091xC) || defined (STM32F098xx)
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/** @addtogroup STM32F0xx_HAL_Driver
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* @{
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*/
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/** @defgroup COMP COMP
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* @brief COMP HAL module driver
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* @{
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*/
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/* Private typedef -----------------------------------------------------------*/
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/* Private define ------------------------------------------------------------*/
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/** @defgroup COMP_Private_Constants COMP Private Constants
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* @{
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*/
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/* Delay for COMP startup time. */
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/* Note: Delay required to reach propagation delay specification. */
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/* Literal set to maximum value (refer to device datasheet, */
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/* parameter "tSTART"). */
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/* Unit: us */
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#define COMP_DELAY_STARTUP_US (60U) /*!< Delay for COMP startup time */
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/* CSR register reset value */
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#define COMP_CSR_RESET_VALUE (0x00000000U)
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/* CSR register masks */
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#define COMP_CSR_RESET_PARAMETERS_MASK (0x00003FFFU)
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#define COMP_CSR_UPDATE_PARAMETERS_MASK (0x00003FFEU)
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/* CSR COMPx non inverting input mask */
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#define COMP_CSR_COMPxNONINSEL_MASK ((uint16_t)COMP_CSR_COMP1SW1)
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/* CSR COMP2 shift */
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#define COMP_CSR_COMP1_SHIFT 0U
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#define COMP_CSR_COMP2_SHIFT 16U
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/**
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* @}
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*/
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/* Private macro -------------------------------------------------------------*/
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/* Private variables ---------------------------------------------------------*/
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/* Private function prototypes -----------------------------------------------*/
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/* Private functions ---------------------------------------------------------*/
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/** @defgroup COMP_Exported_Functions COMP Exported Functions
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* @{
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*/
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/** @defgroup COMP_Exported_Functions_Group1 Initialization/de-initialization functions
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* @brief Initialization and Configuration functions
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*
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@verbatim
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===============================================================================
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##### Initialization and Configuration functions #####
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===============================================================================
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[..] This section provides functions to initialize and de-initialize comparators
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@endverbatim
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* @{
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*/
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/**
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* @brief Initializes the COMP according to the specified
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* parameters in the COMP_InitTypeDef and create the associated handle.
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* @note If the selected comparator is locked, initialization can't be performed.
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* To unlock the configuration, perform a system reset.
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* @param hcomp COMP handle
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* @retval HAL status
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*/
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HAL_StatusTypeDef HAL_COMP_Init(COMP_HandleTypeDef *hcomp)
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{
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HAL_StatusTypeDef status = HAL_OK;
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uint32_t regshift = COMP_CSR_COMP1_SHIFT;
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/* Check the COMP handle allocation and lock status */
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if((hcomp == NULL) || ((hcomp->State & COMP_STATE_BIT_LOCK) != RESET))
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{
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status = HAL_ERROR;
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}
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else
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{
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/* Check the parameter */
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assert_param(IS_COMP_ALL_INSTANCE(hcomp->Instance));
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assert_param(IS_COMP_INVERTINGINPUT(hcomp->Init.InvertingInput));
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assert_param(IS_COMP_NONINVERTINGINPUT(hcomp->Init.NonInvertingInput));
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assert_param(IS_COMP_OUTPUT(hcomp->Init.Output));
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assert_param(IS_COMP_OUTPUTPOL(hcomp->Init.OutputPol));
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assert_param(IS_COMP_HYSTERESIS(hcomp->Init.Hysteresis));
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assert_param(IS_COMP_MODE(hcomp->Init.Mode));
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if(hcomp->Init.NonInvertingInput == COMP_NONINVERTINGINPUT_DAC1SWITCHCLOSED)
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{
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assert_param(IS_COMP_DAC1SWITCH_INSTANCE(hcomp->Instance));
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}
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if(hcomp->Init.WindowMode != COMP_WINDOWMODE_DISABLE)
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{
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assert_param(IS_COMP_WINDOWMODE_INSTANCE(hcomp->Instance));
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}
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/* Init SYSCFG and the low level hardware to access comparators */
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__HAL_RCC_SYSCFG_CLK_ENABLE();
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/* Init the low level hardware : SYSCFG to access comparators */
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HAL_COMP_MspInit(hcomp);
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if(hcomp->State == HAL_COMP_STATE_RESET)
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{
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/* Allocate lock resource and initialize it */
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hcomp->Lock = HAL_UNLOCKED;
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}
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/* Change COMP peripheral state */
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hcomp->State = HAL_COMP_STATE_BUSY;
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/* Set COMP parameters */
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/* Set COMPxINSEL bits according to hcomp->Init.InvertingInput value */
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/* Set COMPxOUTSEL bits according to hcomp->Init.Output value */
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/* Set COMPxPOL bit according to hcomp->Init.OutputPol value */
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/* Set COMPxHYST bits according to hcomp->Init.Hysteresis value */
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/* Set COMPxMODE bits according to hcomp->Init.Mode value */
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if(hcomp->Instance == COMP2)
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{
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regshift = COMP_CSR_COMP2_SHIFT;
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}
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MODIFY_REG(COMP->CSR,
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(COMP_CSR_COMPxINSEL | COMP_CSR_COMPxNONINSEL_MASK | \
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COMP_CSR_COMPxOUTSEL | COMP_CSR_COMPxPOL | \
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COMP_CSR_COMPxHYST | COMP_CSR_COMPxMODE) << regshift,
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(hcomp->Init.InvertingInput | \
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hcomp->Init.NonInvertingInput | \
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hcomp->Init.Output | \
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hcomp->Init.OutputPol | \
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hcomp->Init.Hysteresis | \
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hcomp->Init.Mode) << regshift);
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if(hcomp->Init.WindowMode != COMP_WINDOWMODE_DISABLE)
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{
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COMP->CSR |= COMP_CSR_WNDWEN;
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}
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/* Initialize the COMP state*/
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hcomp->State = HAL_COMP_STATE_READY;
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}
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return status;
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}
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/**
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* @brief DeInitializes the COMP peripheral
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* @note Deinitialization can't be performed if the COMP configuration is locked.
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* To unlock the configuration, perform a system reset.
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* @param hcomp COMP handle
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* @retval HAL status
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*/
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HAL_StatusTypeDef HAL_COMP_DeInit(COMP_HandleTypeDef *hcomp)
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{
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HAL_StatusTypeDef status = HAL_OK;
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uint32_t regshift = COMP_CSR_COMP1_SHIFT;
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/* Check the COMP handle allocation and lock status */
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if((hcomp == NULL) || ((hcomp->State & COMP_STATE_BIT_LOCK) != RESET))
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{
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status = HAL_ERROR;
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}
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else
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{
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/* Check the parameter */
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assert_param(IS_COMP_ALL_INSTANCE(hcomp->Instance));
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/* Set COMP_CSR register to reset value for the corresponding COMP instance */
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if(hcomp->Instance == COMP2)
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{
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regshift = COMP_CSR_COMP2_SHIFT;
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}
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MODIFY_REG(COMP->CSR,
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COMP_CSR_RESET_PARAMETERS_MASK << regshift,
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COMP_CSR_RESET_VALUE << regshift);
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/* DeInit the low level hardware: SYSCFG, GPIO, CLOCK and NVIC */
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HAL_COMP_MspDeInit(hcomp);
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hcomp->State = HAL_COMP_STATE_RESET;
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/* Release Lock */
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__HAL_UNLOCK(hcomp);
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}
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return status;
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}
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/**
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* @brief Initializes the COMP MSP.
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* @param hcomp COMP handle
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* @retval None
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*/
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__weak void HAL_COMP_MspInit(COMP_HandleTypeDef *hcomp)
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{
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/* Prevent unused argument(s) compilation warning */
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UNUSED(hcomp);
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/* NOTE : This function Should not be modified, when the callback is needed,
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the HAL_COMP_MspInit could be implenetd in the user file
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*/
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}
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/**
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* @brief DeInitializes COMP MSP.
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* @param hcomp COMP handle
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* @retval None
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*/
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__weak void HAL_COMP_MspDeInit(COMP_HandleTypeDef *hcomp)
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{
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/* Prevent unused argument(s) compilation warning */
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UNUSED(hcomp);
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/* NOTE : This function Should not be modified, when the callback is needed,
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the HAL_COMP_MspDeInit could be implenetd in the user file
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*/
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}
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/**
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* @}
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*/
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/** @defgroup COMP_Exported_Functions_Group2 I/O operation functions
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* @brief Data transfers functions
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*
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@verbatim
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===============================================================================
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##### IO operation functions #####
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===============================================================================
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[..]
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This subsection provides a set of functions allowing to manage the COMP data
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transfers.
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@endverbatim
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* @{
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*/
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/**
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* @brief Start the comparator
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* @param hcomp COMP handle
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* @retval HAL status
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*/
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HAL_StatusTypeDef HAL_COMP_Start(COMP_HandleTypeDef *hcomp)
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{
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uint32_t wait_loop_index = 0U;
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HAL_StatusTypeDef status = HAL_OK;
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uint32_t regshift = COMP_CSR_COMP1_SHIFT;
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/* Check the COMP handle allocation and lock status */
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if((hcomp == NULL) || ((hcomp->State & COMP_STATE_BIT_LOCK) != RESET))
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{
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status = HAL_ERROR;
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}
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else
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{
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/* Check the parameter */
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assert_param(IS_COMP_ALL_INSTANCE(hcomp->Instance));
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if(hcomp->State == HAL_COMP_STATE_READY)
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{
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/* Enable the selected comparator */
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if(hcomp->Instance == COMP2)
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{
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regshift = COMP_CSR_COMP2_SHIFT;
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}
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SET_BIT(COMP->CSR, COMP_CSR_COMPxEN << regshift);
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/* Set HAL COMP handle state */
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hcomp->State = HAL_COMP_STATE_BUSY;
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/* Delay for COMP startup time */
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wait_loop_index = (COMP_DELAY_STARTUP_US * (SystemCoreClock / 1000000U));
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while(wait_loop_index != 0U)
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{
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wait_loop_index--;
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}
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}
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else
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{
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status = HAL_ERROR;
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}
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}
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return status;
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}
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/**
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* @brief Stop the comparator
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* @param hcomp COMP handle
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* @retval HAL status
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*/
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HAL_StatusTypeDef HAL_COMP_Stop(COMP_HandleTypeDef *hcomp)
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{
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HAL_StatusTypeDef status = HAL_OK;
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uint32_t regshift = COMP_CSR_COMP1_SHIFT;
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/* Check the COMP handle allocation and lock status */
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if((hcomp == NULL) || ((hcomp->State & COMP_STATE_BIT_LOCK) != RESET))
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{
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status = HAL_ERROR;
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}
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else
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{
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/* Check the parameter */
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assert_param(IS_COMP_ALL_INSTANCE(hcomp->Instance));
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if(hcomp->State == HAL_COMP_STATE_BUSY)
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{
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/* Disable the selected comparator */
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if(hcomp->Instance == COMP2)
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{
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regshift = COMP_CSR_COMP2_SHIFT;
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}
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CLEAR_BIT(COMP->CSR, COMP_CSR_COMPxEN << regshift);
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hcomp->State = HAL_COMP_STATE_READY;
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}
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else
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{
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status = HAL_ERROR;
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}
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}
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return status;
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}
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/**
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* @brief Enables the interrupt and starts the comparator
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* @param hcomp COMP handle
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* @retval HAL status.
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*/
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HAL_StatusTypeDef HAL_COMP_Start_IT(COMP_HandleTypeDef *hcomp)
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{
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HAL_StatusTypeDef status = HAL_OK;
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uint32_t extiline = 0U;
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/* Check the parameter */
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assert_param(IS_COMP_TRIGGERMODE(hcomp->Init.TriggerMode));
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status = HAL_COMP_Start(hcomp);
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if(status == HAL_OK)
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{
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/* Check the Exti Line output configuration */
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extiline = COMP_GET_EXTI_LINE(hcomp->Instance);
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/* Configure the rising edge */
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if((hcomp->Init.TriggerMode & COMP_TRIGGERMODE_IT_RISING) != RESET)
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{
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SET_BIT(EXTI->RTSR, extiline);
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}
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else
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{
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CLEAR_BIT(EXTI->RTSR, extiline);
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}
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/* Configure the falling edge */
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if((hcomp->Init.TriggerMode & COMP_TRIGGERMODE_IT_FALLING) != RESET)
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{
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SET_BIT(EXTI->FTSR, extiline);
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}
|
|
else
|
|
{
|
|
CLEAR_BIT(EXTI->FTSR, extiline);
|
|
}
|
|
|
|
/* Clear COMP EXTI pending bit */
|
|
WRITE_REG(EXTI->PR, extiline);
|
|
|
|
/* Enable Exti interrupt mode */
|
|
SET_BIT(EXTI->IMR, extiline);
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* @brief Disable the interrupt and Stop the comparator
|
|
* @param hcomp COMP handle
|
|
* @retval HAL status
|
|
*/
|
|
HAL_StatusTypeDef HAL_COMP_Stop_IT(COMP_HandleTypeDef *hcomp)
|
|
{
|
|
HAL_StatusTypeDef status = HAL_OK;
|
|
|
|
/* Disable the Exti Line interrupt mode */
|
|
CLEAR_BIT(EXTI->IMR, COMP_GET_EXTI_LINE(hcomp->Instance));
|
|
|
|
status = HAL_COMP_Stop(hcomp);
|
|
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* @brief Comparator IRQ Handler
|
|
* @param hcomp COMP handle
|
|
* @retval HAL status
|
|
*/
|
|
void HAL_COMP_IRQHandler(COMP_HandleTypeDef *hcomp)
|
|
{
|
|
uint32_t extiline = COMP_GET_EXTI_LINE(hcomp->Instance);
|
|
|
|
/* Check COMP Exti flag */
|
|
if(READ_BIT(EXTI->PR, extiline) != RESET)
|
|
{
|
|
/* Clear COMP Exti pending bit */
|
|
WRITE_REG(EXTI->PR, extiline);
|
|
|
|
/* COMP trigger user callback */
|
|
HAL_COMP_TriggerCallback(hcomp);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/** @defgroup COMP_Exported_Functions_Group3 Peripheral Control functions
|
|
* @brief management functions
|
|
*
|
|
@verbatim
|
|
===============================================================================
|
|
##### Peripheral Control functions #####
|
|
===============================================================================
|
|
[..]
|
|
This subsection provides a set of functions allowing to control the COMP data
|
|
transfers.
|
|
|
|
@endverbatim
|
|
* @{
|
|
*/
|
|
|
|
/**
|
|
* @brief Lock the selected comparator configuration.
|
|
* @param hcomp COMP handle
|
|
* @retval HAL status
|
|
*/
|
|
HAL_StatusTypeDef HAL_COMP_Lock(COMP_HandleTypeDef *hcomp)
|
|
{
|
|
HAL_StatusTypeDef status = HAL_OK;
|
|
uint32_t regshift = COMP_CSR_COMP1_SHIFT;
|
|
|
|
/* Check the COMP handle allocation and lock status */
|
|
if((hcomp == NULL) || ((hcomp->State & COMP_STATE_BIT_LOCK) != RESET))
|
|
{
|
|
status = HAL_ERROR;
|
|
}
|
|
else
|
|
{
|
|
/* Check the parameter */
|
|
assert_param(IS_COMP_ALL_INSTANCE(hcomp->Instance));
|
|
|
|
/* Set lock flag */
|
|
hcomp->State |= COMP_STATE_BIT_LOCK;
|
|
|
|
/* Set the lock bit corresponding to selected comparator */
|
|
if(hcomp->Instance == COMP2)
|
|
{
|
|
regshift = COMP_CSR_COMP2_SHIFT;
|
|
}
|
|
SET_BIT(COMP->CSR, COMP_CSR_COMPxLOCK << regshift);
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* @brief Return the output level (high or low) of the selected comparator.
|
|
* The output level depends on the selected polarity.
|
|
* If the polarity is not inverted:
|
|
* - Comparator output is low when the non-inverting input is at a lower
|
|
* voltage than the inverting input
|
|
* - Comparator output is high when the non-inverting input is at a higher
|
|
* voltage than the inverting input
|
|
* If the polarity is inverted:
|
|
* - Comparator output is high when the non-inverting input is at a lower
|
|
* voltage than the inverting input
|
|
* - Comparator output is low when the non-inverting input is at a higher
|
|
* voltage than the inverting input
|
|
* @param hcomp COMP handle
|
|
* @retval Returns the selected comparator output level: COMP_OUTPUTLEVEL_LOW or COMP_OUTPUTLEVEL_HIGH.
|
|
*
|
|
*/
|
|
uint32_t HAL_COMP_GetOutputLevel(COMP_HandleTypeDef *hcomp)
|
|
{
|
|
uint32_t level=0;
|
|
uint32_t regshift = COMP_CSR_COMP1_SHIFT;
|
|
|
|
/* Check the parameter */
|
|
assert_param(IS_COMP_ALL_INSTANCE(hcomp->Instance));
|
|
|
|
if(hcomp->Instance == COMP2)
|
|
{
|
|
regshift = COMP_CSR_COMP2_SHIFT;
|
|
}
|
|
level = READ_BIT(COMP->CSR, COMP_CSR_COMPxOUT << regshift);
|
|
|
|
if(level != 0U)
|
|
{
|
|
return(COMP_OUTPUTLEVEL_HIGH);
|
|
}
|
|
return(COMP_OUTPUTLEVEL_LOW);
|
|
}
|
|
|
|
/**
|
|
* @brief Comparator callback.
|
|
* @param hcomp COMP handle
|
|
* @retval None
|
|
*/
|
|
__weak void HAL_COMP_TriggerCallback(COMP_HandleTypeDef *hcomp)
|
|
{
|
|
/* Prevent unused argument(s) compilation warning */
|
|
UNUSED(hcomp);
|
|
|
|
/* NOTE : This function should not be modified, when the callback is needed,
|
|
the HAL_COMP_TriggerCallback should be implemented in the user file
|
|
*/
|
|
}
|
|
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/** @defgroup COMP_Exported_Functions_Group4 Peripheral State functions
|
|
* @brief Peripheral State functions
|
|
*
|
|
@verbatim
|
|
===============================================================================
|
|
##### Peripheral State functions #####
|
|
===============================================================================
|
|
[..]
|
|
This subsection permit to get in run-time the status of the peripheral
|
|
and the data flow.
|
|
|
|
@endverbatim
|
|
* @{
|
|
*/
|
|
|
|
/**
|
|
* @brief Return the COMP state
|
|
* @param hcomp COMP handle
|
|
* @retval HAL state
|
|
*/
|
|
uint32_t HAL_COMP_GetState(COMP_HandleTypeDef *hcomp)
|
|
{
|
|
/* Check the COMP handle allocation */
|
|
if(hcomp == NULL)
|
|
{
|
|
return HAL_COMP_STATE_RESET;
|
|
}
|
|
|
|
/* Check the parameter */
|
|
assert_param(IS_COMP_ALL_INSTANCE(hcomp->Instance));
|
|
|
|
return hcomp->State;
|
|
}
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
#endif /* STM32F051x8 || STM32F058xx || */
|
|
/* STM32F071xB || STM32F072xB || STM32F078xx || */
|
|
/* STM32F091xC || defined (STM32F098xx) */
|
|
|
|
#endif /* HAL_COMP_MODULE_ENABLED */
|
|
|
|
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
|