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Diffstat (limited to 'tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F3/stm32f3xx_hal_comp.c')
-rw-r--r-- | tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F3/stm32f3xx_hal_comp.c | 709 |
1 files changed, 709 insertions, 0 deletions
diff --git a/tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F3/stm32f3xx_hal_comp.c b/tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F3/stm32f3xx_hal_comp.c new file mode 100644 index 0000000000..44be22d53e --- /dev/null +++ b/tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F3/stm32f3xx_hal_comp.c @@ -0,0 +1,709 @@ +/** + ****************************************************************************** + * @file stm32f3xx_hal_comp.c + * @author MCD Application Team + * @version V1.1.0 + * @date 12-Sept-2014 + * @brief COMP HAL module driver. + * + * This file provides firmware functions to manage the following + * functionalities of the COMP peripheral: + * + Initialization/de-initialization functions + * + I/O operation functions + * + Peripheral Control functions + * + Peripheral State functions + * + @verbatim +================================================================================ + ##### COMP Peripheral features ##### +================================================================================ + + [..] + The STM32F3xx device family integrates up to 7 analog comparators COMP1, COMP2...COMP7: + (#) The non inverting input and inverting input can be set to GPIO pins + as shown in table1. COMP Inputs below for STM32F303xB/STM32F303xC as example. + For other STM32F3xx devices please refer to the COMP peripheral section in corresponding + Reference Manual. + + (#) The COMP output is available using HAL_COMP_GetOutputLevel() + and can be set on GPIO pins. Refer to table 2. COMP Outputs below for STM32F303xB/STM32F303xC as example. + For other STM32F3xx devices please refer to the COMP peripheral section in corresponding + Reference Manual. + + (#) The COMP output can be redirected to embedded timers (TIM1, TIM2, TIM3...) + Refer to table 3. COMP Outputs redirection to embedded timers below for STM32F303xB/STM32F303xC as example. + For other STM32F3xx devices please refer to the COMP peripheral section in corresponding + Reference Manual. + + (#) The comparators COMP1 and COMP2, COMP3 and COMP4, COMP5 and COMP6 can be combined in window + mode and only COMP1, COMP3 and COMP5 non inverting input can be used as non-inverting input. + + (#) The seven comparators have interrupt capability with wake-up + from Sleep and Stop modes (through the EXTI controller): + (++) COMP1 is internally connected to EXTI Line 21 + (++) COMP2 is internally connected to EXTI Line 22 + (++) COMP3 is internally connected to EXTI Line 29 + (++) COMP4 is internally connected to EXTI Line 30 + (++) COMP5 is internally connected to EXTI Line 31 + (++) COMP6 is internally connected to EXTI Line 32 + (++) COMP7 is internally connected to EXTI Line 33 + From the corresponding IRQ handler, the right interrupt source can be retrieved with the + macro __HAL_COMP_EXTI_GET_FLAG(). Possible values are: + (++) COMP_EXTI_LINE_COMP1_EVENT + (++) COMP_EXTI_LINE_COMP2_EVENT + (++) COMP_EXTI_LINE_COMP3_EVENT + (++) COMP_EXTI_LINE_COMP4_EVENT + (++) COMP_EXTI_LINE_COMP5_EVENT + (++) COMP_EXTI_LINE_COMP6_EVENT + (++) COMP_EXTI_LINE_COMP7_EVENT + +[..] Table 1. COMP Inputs for the STM32F303xB/STM32F303xC/STM32F303xE devices + +------------------------------------------------------------------------------------------+ + | | | COMP1 | COMP2 | COMP3 | COMP4 | COMP5 | COMP6 | COMP7 | + |-----------------|----------------|---------------|---------------------------------------| + | | 1/4 VREFINT | OK | OK | OK | OK | OK | OK | OK | + | | 1/2 VREFINT | OK | OK | OK | OK | OK | OK | OK | + | | 3/4 VREFINT | OK | OK | OK | OK | OK | OK | OK | + | Inverting Input | VREFINT | OK | OK | OK | OK | OK | OK | OK | + | | DAC1 OUT (PA4) | OK | OK | OK | OK | OK | OK | OK | + | | DAC2 OUT (PA5) | OK | OK | OK | OK | OK | OK | OK | + | | IO1 | PA0 | PA2 | PD15 | PE8 | PD13 | PD10 | PC0 | + | | IO2 | --- | --- | PB12 | PB2 | PB10 | PB15 | --- | + |-----------------|----------------|-------|-------|-------|-------|-------|-------|-------| + | Non Inverting | IO1 | PA1 | PA7 | PB14 | PB0 | PD12 | PD11 | PA0 | + | Input | IO2 | --- | PA3 | PD14 | PE7 | PB13 | PB11 | PC1 | + +------------------------------------------------------------------------------------------+ + + [..] Table 2. COMP Outputs for the STM32F303xB/STM32F303xC/STM32F303xE devices + +-------------------------------------------------------+ + | COMP1 | COMP2 | COMP3 | COMP4 | COMP5 | COMP6 | COMP7 | + |-------|-------|-------|-------|-------|-------|-------| + | PA0 | PA2 | PB1 | PC8 | PC7 | PA10 | PC2 | + | PF4 | PA7 | --- | PA8 | PA9 | PC6 | --- | + | PA6 | PA12 | --- | --- | --- | --- | --- | + | PA11 | PB9 | --- | --- | --- | --- | --- | + | PB8 | --- | --- | --- | --- | --- | --- | + +-------------------------------------------------------+ + + [..] Table 3. COMP Outputs redirection to embedded timers for the STM32F303xB/STM32F303xC devices + +----------------------------------------------------------------------------------------------------------------------+ + | COMP1 | COMP2 | COMP3 | COMP4 | COMP5 | COMP6 | COMP7 | + |----------------|----------------|----------------|----------------|----------------|----------------|----------------| + | TIM1 BKIN | TIM1 BKIN | TIM1 BKIN | TIM1 BKIN | TIM1 BKIN | TIM1 BKIN | TIM1 BKIN | + | | | | | | | | + | TIM1 BKIN2 | TIM1 BKIN2 | TIM1 BKIN2 | TIM1 BKIN2 | TIM1 BKIN2 | TIM1 BKIN2 | TIM1 BKIN2 | + | | | | | | | | + | TIM8 BKIN | TIM8 BKIN | TIM8 BKIN | TIM8 BKIN | TIM8 BKIN | TIM8 BKIN | TIM8 BKIN | + | | | | | | | | + | TIM8 BKIN2 | TIM8 BKIN2 | TIM8 BKIN2 | TIM8 BKIN2 | TIM8 BKIN2 | TIM8 BKIN2 | TIM8 BKIN2 | + | | | | | | | | + | TIM1 BKIN2 | TIM1 BKIN2 | TIM1 BKIN2 | TIM1 BKIN2 | TIM1 BKIN2 | TIM1 BKIN2 | TIM1 BKIN2 | + | + | + | + | + | + | + | + | + | TIM8BKIN2 | TIM8BKIN2 | TIM8BKIN2 | TIM8BKIN2 | TIM8BKIN2 | TIM8BKIN2 | TIM8BKIN2 | + | | | | | | | | + | TIM1 OCREFCLR | TIM1 OCREFCLR | TIM1 OCREFCLR | TIM8 OCREFCLR | TIM8 OCREFCLR | TIM8 OCREFCLR | TIM1 OCREFCLR | + | | | | | | | | + | TIM1 IC1 | TIM1 IC1 | TIM2 OCREFCLR | TIM3 IC3 | TIM2 IC1 | TIM2 IC2 | TIM8 OCREFCLR | + | | | | | | | | + | TIM2 IC4 | TIM2 IC4 | TIM3 IC2 | TIM3 OCREFCLR | TIM3 OCREFCLR | TIM2 OCREFCLR | TIM2 IC3 | + | | | | | | | | + | TIM2 OCREFCLR | TIM2 OCREFCLR | TIM4 IC1 | TIM4 IC2 | TIM4 IC3 | TIM16 OCREFCLR| TIM1 IC2 | + | | | | | | | | + | TIM3 IC1 | TIM3 IC1 | TIM15 IC1 | TIM15 OCREFCLR| TIM16 BKIN | TIM16 IC1 | TIM17 OCREFCLR| + | | | | | | | | + | TIM3 OCREFCLR | TIM3 OCREFCLR | TIM15 BKIN | TIM15 IC2 | TIM17 IC1 | TIM4 IC4 | TIM17 BKIN | + +----------------------------------------------------------------------------------------------------------------------+ + + [..] Table 4. COMP Outputs redirection to embedded timers for the STM32F303xE devices + +----------------------------------------------------------------------------------------------------------------------+ + | COMP1 | COMP2 | COMP3 | COMP4 | COMP5 | COMP6 | COMP7 | + |----------------|----------------|----------------|----------------|----------------|----------------|----------------| + | TIM1 BKIN | TIM1 BKIN | TIM1 BKIN | TIM1 BKIN (1) | TIM1 BKIN | TIM1 BKIN | TIM1 BKIN (1) | + | | | | | | | | + | TIM1 BKIN2 | TIM1 BKIN2 | TIM1 BKIN2 | TIM1 BKIN2 | TIM1 BKIN2 | TIM1 BKIN2 | TIM1 BKIN2 | + | | | | | | | | + | TIM8 BKIN | TIM8 BKIN | TIM8 BKIN | TIM8 BKIN (1) | TIM8 BKIN | TIM8 BKIN | TIM8 BKIN (1) | + | | | | | | | | + | TIM8 BKIN2 | TIM8 BKIN2 | TIM8 BKIN2 | TIM8 BKIN2 | TIM8 BKIN2 | TIM8 BKIN2 | TIM8 BKIN2 | + | | | | | | | | + | TIM1 BKIN2 | TIM1 BKIN2 | TIM1 BKIN2 | TIM1 BKIN2 | TIM1 BKIN2 | TIM1 BKIN2 | TIM1 BKIN2 | + | + | + | + | + | + | + | + | + | TIM8BKIN2 | TIM8BKIN2 | TIM8BKIN2 | TIM8BKIN2 | TIM8BKIN2 | TIM8BKIN2 | TIM8BKIN2 | + | | | | | | | | + | TIM1 OCREFCLR | TIM1 OCREFCLR | TIM1 OCREFCLR | TIM8 OCREFCLR | TIM8 OCREFCLR | TIM8 OCREFCLR | TIM1 OCREFCLR | + | | | | | | | | + | TIM1 IC1 | TIM1 IC1 | TIM2 OCREFCLR | TIM3 IC3 | TIM2 IC1 | TIM2 IC2 | TIM8 OCREFCLR | + | | | | | | | | + | TIM2 IC4 | TIM2 IC4 | TIM3 IC2 | TIM3 OCREFCLR | TIM3 OCREFCLR | TIM2 OCREFCLR | TIM2 IC3 | + | | | | | | | | + | TIM2 OCREFCLR | TIM2 OCREFCLR | TIM4 IC1 | TIM4 IC2 | TIM4 IC3 | TIM16 OCREFCLR| TIM1 IC2 | + | | | | | | | | + | TIM3 IC1 | TIM3 IC1 | TIM15 IC1 | TIM15 OCREFCLR| TIM16 BKIN | TIM16 IC1 | TIM17 OCREFCLR| + | | | | | | | | + | TIM3 OCREFCLR | TIM3 OCREFCLR | TIM15 BKIN | TIM15 IC2 | TIM17 IC1 | TIM4 IC4 | TIM17 BKIN | + | | | | | | | | + | TIM20 BKIN | TIM20 BKIN | TIM20 BKIN | TIM20 BKIN (1)| TIM20 BKIN | TIM20 BKIN | TIM20 BKIN (1)| + | | | | | | | | + | TIM20 BKIN2 | TIM20 BKIN2 | TIM20 BKIN2 | TIM20 BKIN2 | TIM20 BKIN2 | TIM20 BKIN2 | TIM20 BKIN2 | + | | | | | | | | + | TIM1 BKIN2 | TIM1 BKIN2 | TIM1 BKIN2 | TIM1 BKIN2 | TIM1 BKIN2 | TIM1 BKIN2 | TIM1 BKIN2 | + | + | + | + | + | + | + | + | + | TIM8 BKIN2 | TIM8 BKIN2 | TIM8 BKIN2 | TIM8 BKIN2 | TIM8 BKIN2 | TIM8 BKIN2 | TIM8 BKIN2 | + | + | + | + | + | + | + | + | + | TIM20 BKIN2 | TIM20 BKIN2 | TIM20 BKIN2 | TIM20 BKIN2 | TIM20 BKIN2 | TIM20 BKIN2 | TIM20 BKIN2 | + | | | | | | | | + +----------------------------------------------------------------------------------------------------------------------+ + (1):This connection consists of connecting both GPIO and COMP output to TIM1/8/20 BRK input through an OR gate, instead + of connecting the GPIO to the TIM1/8/20 BRK input and the COMP output to the TIM1/8/20 BRK_ACTH input. The aim is to + add a digital filter (3 bits) on the COMP output. + + [..] Table 5. COMP Outputs blanking sources for the STM32F303xB/STM32F303xC/STM32F303xE devices + +----------------------------------------------------------------------------------------------------------------------+ + | COMP1 | COMP2 | COMP3 | COMP4 | COMP5 | COMP6 | COMP7 | + |----------------|----------------|----------------|----------------|----------------|----------------|----------------| + | TIM1 OC5 | TIM1 OC5 | TIM1 OC5 | TIM3 OC4 | -------- | TIM8 OC5 | TIM1 OC5 | + | | | | | | | | + | TIM2 OC3 | TIM2 OC3 | -------- | TIM8 OC5 | TIM3 OC3 | TIM2 OC4 | TIM8 OC5 | + | | | | | | | | + | TIM3 OC3 | TIM3 OC3 | TIM2 OC4 | TIM15 OC1 | TIM8 OC5 | TIM15 OC2 | TIM15 OC2 | + | | | | | | | | + +----------------------------------------------------------------------------------------------------------------------+ + + ##### How to use this driver ##### +================================================================================ + [..] + This driver provides functions to configure and program the Comparators of all STM32F3xx devices. + + To use the comparator, perform the following steps: + + (#) Fill in the HAL_COMP_MspInit() to + (++) Configure the comparator input in analog mode using HAL_GPIO_Init() + (++) Configure the comparator output in alternate function mode using HAL_GPIO_Init() to map the comparator + output to the GPIO pin + (++) If required enable the COMP interrupt by configuring and enabling EXTI line in Interrupt mode and + selecting the desired sensitivity level using HAL_GPIO_Init() function. After that enable the comparator + interrupt vector using HAL_NVIC_EnableIRQ() function. + + (#) Configure the comparator using HAL_COMP_Init() function: + (++) Select the inverting input + (++) Select the non-inverting input + (++) Select the output polarity + (++) Select the output redirection + (++) Select the hysteresis level + (++) Select the power mode + (++) Select the event/interrupt mode + + (#) Enable the comparator using HAL_COMP_Start() function or HAL_COMP_Start_IT() function for interrupt mode + + (#) Read the comparator output level with HAL_COMP_GetOutputLevel() + + @endverbatim + ****************************************************************************** + * @attention + * + * <h2><center>© COPYRIGHT(c) 2014 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. + * + ****************************************************************************** + */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f3xx_hal.h" + +/** @addtogroup STM32F3xx_HAL_Driver + * @{ + */ + +/** @defgroup COMP COMP HAL module driver + * @brief COMP HAL module driver + * @{ + */ + +#ifdef HAL_COMP_MODULE_ENABLED + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +/* Private function prototypes -----------------------------------------------*/ +/* Exported functions --------------------------------------------------------*/ + +/** @defgroup COMP_Exported_Functions COMP Exported Functions + * @{ + */ + +/** @defgroup COMP_Exported_Functions_Group1 Initialization and de-initialization functions + * @brief Initialization and Configuration functions + * +@verbatim + =============================================================================== + ##### Initialization/de-initialization functions ##### + =============================================================================== + [..] This section provides functions to initialize and de-initialize comparators + +@endverbatim + * @{ + */ + +/** + * @brief Initializes the COMP according to the specified + * parameters in the COMP_InitTypeDef and create the associated handle. + * @note If the selected comparator is locked, initialization can't be performed. + * To unlock the configuration, perform a system reset. + * @param hcomp: COMP handle + * @retval HAL status + */ +HAL_StatusTypeDef HAL_COMP_Init(COMP_HandleTypeDef *hcomp) +{ + HAL_StatusTypeDef status = HAL_OK; + + /* Check the COMP handle allocation and lock status */ + if((hcomp == HAL_NULL) || ((hcomp->State & COMP_STATE_BIT_LOCK) != RESET)) + { + status = HAL_ERROR; + } + else + { + /* Check the parameter */ + assert_param(IS_COMP_ALL_INSTANCE(hcomp->Instance)); + assert_param(IS_COMP_INVERTINGINPUT(hcomp->Init.InvertingInput)); + assert_param(IS_COMP_NONINVERTINGINPUT(hcomp->Init.NonInvertingInput)); + assert_param(IS_COMP_NONINVERTINGINPUT_INSTANCE(hcomp->Instance, hcomp->Init.NonInvertingInput)); + assert_param(IS_COMP_OUTPUT(hcomp->Init.Output)); + assert_param(IS_COMP_OUTPUTPOL(hcomp->Init.OutputPol)); + assert_param(IS_COMP_HYSTERESIS(hcomp->Init.Hysteresis)); + assert_param(IS_COMP_MODE(hcomp->Init.Mode)); + assert_param(IS_COMP_BLANKINGSRCE(hcomp->Init.BlankingSrce)); + assert_param(IS_COMP_BLANKINGSRCE_INSTANCE(hcomp->Instance, hcomp->Init.BlankingSrce)); + + if(hcomp->Init.WindowMode != COMP_WINDOWMODE_DISABLED) + { + assert_param(IS_COMP_WINDOWMODE_INSTANCE(hcomp->Instance)); + } + + if(hcomp->State == HAL_COMP_STATE_RESET) + { + /* Init SYSCFG and the low level hardware to access comparators */ + __SYSCFG_CLK_ENABLE(); + + HAL_COMP_MspInit(hcomp); + } + + /* Set COMP parameters */ + /* Set COMPxINSEL bits according to hcomp->Init.InvertingInput value */ + /* Set COMPxNONINSEL bits according to hcomp->Init.NonInvertingInput value */ + /* Set COMPxBLANKING bits according to hcomp->Init.BlankingSrce value */ + /* Set COMPxOUTSEL bits according to hcomp->Init.Output value */ + /* Set COMPxPOL bit according to hcomp->Init.OutputPol value */ + /* Set COMPxHYST bits according to hcomp->Init.Hysteresis value */ + /* Set COMPxMODE bits according to hcomp->Init.Mode value */ + COMP_INIT(hcomp); + + /* Initialize the COMP state*/ + if(hcomp->State == HAL_COMP_STATE_RESET) + { + hcomp->State = HAL_COMP_STATE_READY; + } + } + + return status; +} + +/** + * @brief DeInitializes the COMP peripheral + * @note Deinitialization can't be performed if the COMP configuration is locked. + * To unlock the configuration, perform a system reset. + * @param hcomp: COMP handle + * @retval HAL status + */ +HAL_StatusTypeDef HAL_COMP_DeInit(COMP_HandleTypeDef *hcomp) +{ + HAL_StatusTypeDef status = HAL_OK; + + /* Check the COMP handle allocation and lock status */ + if((hcomp == HAL_NULL) || ((hcomp->State & COMP_STATE_BIT_LOCK) != RESET)) + { + status = HAL_ERROR; + } + else + { + /* Check the parameter */ + assert_param(IS_COMP_ALL_INSTANCE(hcomp->Instance)); + + /* Set COMP_CSR register to reset value */ + COMP_DEINIT(hcomp); + + /* DeInit the low level hardware: SYSCFG, GPIO, CLOCK and NVIC */ + HAL_COMP_MspDeInit(hcomp); + + hcomp->State = HAL_COMP_STATE_RESET; + } + + return status; +} + +/** + * @brief Initializes the COMP MSP. + * @param hcomp: COMP handle + * @retval None + */ +__weak void HAL_COMP_MspInit(COMP_HandleTypeDef *hcomp) +{ + /* NOTE : This function Should not be modified, when the callback is needed, + the HAL_COMP_MspInit could be implemented in the user file + */ +} + +/** + * @brief DeInitializes COMP MSP. + * @param hcomp: COMP handle + * @retval None + */ +__weak void HAL_COMP_MspDeInit(COMP_HandleTypeDef *hcomp) +{ + /* NOTE : This function Should not be modified, when the callback is needed, + the HAL_COMP_MspDeInit could be implenetd in the user file + */ +} + +/** + * @} + */ + +/** @defgroup COMP_Exported_Functions_Group2 Input and Output operation functions + * @brief Data transfers functions + * +@verbatim + =============================================================================== + ##### IO operation functions ##### + =============================================================================== + [..] + This subsection provides a set of functions allowing to manage the COMP data + transfers. + +@endverbatim + * @{ + */ + +/** + * @brief Start the comparator + * @param hcomp: COMP handle + * @retval HAL status + */ +HAL_StatusTypeDef HAL_COMP_Start(COMP_HandleTypeDef *hcomp) +{ + HAL_StatusTypeDef status = HAL_OK; + + /* Check the COMP handle allocation and lock status */ + if((hcomp == HAL_NULL) || ((hcomp->State & COMP_STATE_BIT_LOCK) != RESET)) + { + status = HAL_ERROR; + } + else + { + /* Check the parameter */ + assert_param(IS_COMP_ALL_INSTANCE(hcomp->Instance)); + + if(hcomp->State == HAL_COMP_STATE_READY) + { + /* Enable the selected comparator */ + COMP_START(hcomp); + + hcomp->State = HAL_COMP_STATE_BUSY; + } + else + { + status = HAL_ERROR; + } + } + + return status; +} + +/** + * @brief Stop the comparator + * @param hcomp: COMP handle + * @retval HAL status + */ +HAL_StatusTypeDef HAL_COMP_Stop(COMP_HandleTypeDef *hcomp) +{ + HAL_StatusTypeDef status = HAL_OK; + + /* Check the COMP handle allocation and lock status */ + if((hcomp == HAL_NULL) || ((hcomp->State & COMP_STATE_BIT_LOCK) != RESET)) + { + status = HAL_ERROR; + } + else + { + /* Check the parameter */ + assert_param(IS_COMP_ALL_INSTANCE(hcomp->Instance)); + + if(hcomp->State == HAL_COMP_STATE_BUSY) + { + /* Disable the selected comparator */ + COMP_STOP(hcomp); + + hcomp->State = HAL_COMP_STATE_READY; + } + else + { + status = HAL_ERROR; + } + } + + return status; +} + +/** + * @brief Enables the interrupt and starts the comparator + * @param hcomp: COMP handle + * @retval HAL status. + */ +HAL_StatusTypeDef HAL_COMP_Start_IT(COMP_HandleTypeDef *hcomp) +{ + HAL_StatusTypeDef status = HAL_OK; + uint32_t extiline = 0; + + /* Check the parameter */ + assert_param(IS_COMP_TRIGGERMODE(hcomp->Init.TriggerMode)); + + status = HAL_COMP_Start(hcomp); + if(status == HAL_OK) + { + /* Check the Exti Line output configuration */ + extiline = __HAL_COMP_GET_EXTI_LINE(hcomp->Instance); + /* Configure the rising edge */ + if((hcomp->Init.TriggerMode & COMP_TRIGGERMODE_IT_RISING) != RESET) + { + __HAL_COMP_EXTI_RISING_IT_ENABLE(extiline); + } + else + { + __HAL_COMP_EXTI_RISING_IT_DISABLE(extiline); + } + /* Configure the falling edge */ + if((hcomp->Init.TriggerMode & COMP_TRIGGERMODE_IT_FALLING) != RESET) + { + __HAL_COMP_EXTI_FALLING_IT_ENABLE(extiline); + } + else + { + __HAL_COMP_EXTI_FALLING_IT_DISABLE(extiline); + } + /* Enable Exti interrupt mode */ + __HAL_COMP_EXTI_ENABLE_IT(extiline); + /* Clear COMP Exti pending bit */ + __HAL_COMP_EXTI_CLEAR_FLAG(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 */ + __HAL_COMP_EXTI_DISABLE_IT(__HAL_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 = __HAL_COMP_GET_EXTI_LINE(hcomp->Instance); + + /* Check COMP Exti flag */ + if(__HAL_COMP_EXTI_GET_FLAG(extiline) != RESET) + { + /* Clear COMP Exti pending bit */ + __HAL_COMP_EXTI_CLEAR_FLAG(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; + + /* Check the COMP handle allocation and lock status */ + if((hcomp == HAL_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 */ + COMP_LOCK(hcomp); + } + + 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; + + /* Check the parameter */ + assert_param(IS_COMP_ALL_INSTANCE(hcomp->Instance)); + + level = READ_BIT(hcomp->Instance->CSR, COMP_CSR_COMPxOUT); + + if(level != 0) + { + 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) +{ + /* 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 + */ +HAL_COMP_StateTypeDef HAL_COMP_GetState(COMP_HandleTypeDef *hcomp) +{ + /* Check the COMP handle allocation */ + if(hcomp == HAL_NULL) + { + return HAL_COMP_STATE_RESET; + } + + /* Check the parameter */ + assert_param(IS_COMP_ALL_INSTANCE(hcomp->Instance)); + + return hcomp->State; +} +/** + * @} + */ + +/** + * @} + */ + +#endif /* HAL_COMP_MODULE_ENABLED */ +/** + * @} + */ + +/** + * @} + */ + +/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |