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Dependents: frdm_kl05z_gpio_test
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targets/cmsis/TARGET_STM/TARGET_NUCLEO_L053R8/stm32l0xx_hal_comp.c@323:9e901b0a5aa1, 2014-09-13 (annotated)
- Committer:
- shaoziyang
- Date:
- Sat Sep 13 14:25:46 2014 +0000
- Revision:
- 323:9e901b0a5aa1
- Parent:
- 181:a4cbdfbbd2f4
test with CLOCK_SETUP = 0
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
mbed_official | 181:a4cbdfbbd2f4 | 1 | /** |
mbed_official | 181:a4cbdfbbd2f4 | 2 | ****************************************************************************** |
mbed_official | 181:a4cbdfbbd2f4 | 3 | * @file stm32l0xx_hal_comp.c |
mbed_official | 181:a4cbdfbbd2f4 | 4 | * @author MCD Application Team |
mbed_official | 181:a4cbdfbbd2f4 | 5 | * @version V1.0.0 |
mbed_official | 181:a4cbdfbbd2f4 | 6 | * @date 22-April-2014 |
mbed_official | 181:a4cbdfbbd2f4 | 7 | * @brief COMP HAL module driver. |
mbed_official | 181:a4cbdfbbd2f4 | 8 | * |
mbed_official | 181:a4cbdfbbd2f4 | 9 | * This file provides firmware functions to manage the following |
mbed_official | 181:a4cbdfbbd2f4 | 10 | * functionalities of the COMP peripheral: |
mbed_official | 181:a4cbdfbbd2f4 | 11 | * + Initialization/de-initialization functions |
mbed_official | 181:a4cbdfbbd2f4 | 12 | * + I/O operation functions |
mbed_official | 181:a4cbdfbbd2f4 | 13 | * + Peripheral Control functions |
mbed_official | 181:a4cbdfbbd2f4 | 14 | * + Peripheral State functions |
mbed_official | 181:a4cbdfbbd2f4 | 15 | * |
mbed_official | 181:a4cbdfbbd2f4 | 16 | @verbatim |
mbed_official | 181:a4cbdfbbd2f4 | 17 | ================================================================================ |
mbed_official | 181:a4cbdfbbd2f4 | 18 | ##### COMP Peripheral features ##### |
mbed_official | 181:a4cbdfbbd2f4 | 19 | ================================================================================ |
mbed_official | 181:a4cbdfbbd2f4 | 20 | |
mbed_official | 181:a4cbdfbbd2f4 | 21 | [..] |
mbed_official | 181:a4cbdfbbd2f4 | 22 | The STM32L0xx device family integrates 2 analog comparators COMP1 and COMP2: |
mbed_official | 181:a4cbdfbbd2f4 | 23 | (#) The non inverting input and inverting input can be set to GPIO pins |
mbed_official | 181:a4cbdfbbd2f4 | 24 | as shown in table1. COMP Inputs below. |
mbed_official | 181:a4cbdfbbd2f4 | 25 | |
mbed_official | 181:a4cbdfbbd2f4 | 26 | (#) The COMP output is available using HAL_COMP_GetOutputLevel() |
mbed_official | 181:a4cbdfbbd2f4 | 27 | and can be set on GPIO pins. Refer to table 2. COMP Outputs below. |
mbed_official | 181:a4cbdfbbd2f4 | 28 | |
mbed_official | 181:a4cbdfbbd2f4 | 29 | (#) The COMP output can be redirected to embedded timers (TIM2, TIM21, TIM22...) and LPTIM |
mbed_official | 181:a4cbdfbbd2f4 | 30 | Refer to TIM and LPTIM drivers. |
mbed_official | 181:a4cbdfbbd2f4 | 31 | |
mbed_official | 181:a4cbdfbbd2f4 | 32 | (#) The comparators COMP1 and COMP2 can be combined in window mode and only COMP2 non inverting input can be used as non-inverting input. |
mbed_official | 181:a4cbdfbbd2f4 | 33 | |
mbed_official | 181:a4cbdfbbd2f4 | 34 | (#) The 2 comparators have interrupt capability with wake-up |
mbed_official | 181:a4cbdfbbd2f4 | 35 | from Sleep and Stop modes (through the EXTI controller): |
mbed_official | 181:a4cbdfbbd2f4 | 36 | (++) COMP1 is internally connected to EXTI Line 21 |
mbed_official | 181:a4cbdfbbd2f4 | 37 | (++) COMP2 is internally connected to EXTI Line 22 |
mbed_official | 181:a4cbdfbbd2f4 | 38 | |
mbed_official | 181:a4cbdfbbd2f4 | 39 | From the corresponding IRQ handler, the right interrupt source can be retrieved with the |
mbed_official | 181:a4cbdfbbd2f4 | 40 | macro __HAL_COMP_EXTI_GET_FLAG(). Possible values are: |
mbed_official | 181:a4cbdfbbd2f4 | 41 | (++) COMP_EXTI_LINE_COMP1_EVENT |
mbed_official | 181:a4cbdfbbd2f4 | 42 | (++) COMP_EXTI_LINE_COMP2_EVENT |
mbed_official | 181:a4cbdfbbd2f4 | 43 | |
mbed_official | 181:a4cbdfbbd2f4 | 44 | |
mbed_official | 181:a4cbdfbbd2f4 | 45 | [..] Table 1. COMP Inputs for the STM32L0xx devices |
mbed_official | 181:a4cbdfbbd2f4 | 46 | +--------------------------------------------------+ |
mbed_official | 181:a4cbdfbbd2f4 | 47 | | | | COMP1 | COMP2 | |
mbed_official | 181:a4cbdfbbd2f4 | 48 | |-----------------|----------------|---------------| |
mbed_official | 181:a4cbdfbbd2f4 | 49 | | | 1/4 VREFINT | -- | OK | |
mbed_official | 181:a4cbdfbbd2f4 | 50 | | | 1/2 VREFINT | -- | OK | |
mbed_official | 181:a4cbdfbbd2f4 | 51 | | | 3/4 VREFINT | -- | OK | |
mbed_official | 181:a4cbdfbbd2f4 | 52 | | Inverting Input | VREFINT | OK | OK | |
mbed_official | 181:a4cbdfbbd2f4 | 53 | | | DAC OUT (PA4) | OK | OK | |
mbed_official | 181:a4cbdfbbd2f4 | 54 | | | IO1 | PA0 | PA2 | |
mbed_official | 181:a4cbdfbbd2f4 | 55 | | | IO2 | PA5 | PA5 | |
mbed_official | 181:a4cbdfbbd2f4 | 56 | | | IO3 | --- | PB3 | |
mbed_official | 181:a4cbdfbbd2f4 | 57 | |-----------------|----------------|-------|-------| |
mbed_official | 181:a4cbdfbbd2f4 | 58 | | Non Inverting | IO1 | PA1 | PA3 | |
mbed_official | 181:a4cbdfbbd2f4 | 59 | | Input | IO2 | --- | PB4 | |
mbed_official | 181:a4cbdfbbd2f4 | 60 | | | IO3 | --- | PB5 | |
mbed_official | 181:a4cbdfbbd2f4 | 61 | | | IO4 | --- | PB6 | |
mbed_official | 181:a4cbdfbbd2f4 | 62 | | | IO5 | --- | PB7 | |
mbed_official | 181:a4cbdfbbd2f4 | 63 | +--------------------------------------------------+ |
mbed_official | 181:a4cbdfbbd2f4 | 64 | |
mbed_official | 181:a4cbdfbbd2f4 | 65 | [..] Table 2. COMP Outputs for the STM32L0xx devices |
mbed_official | 181:a4cbdfbbd2f4 | 66 | +---------------+ |
mbed_official | 181:a4cbdfbbd2f4 | 67 | | COMP1 | COMP2 | |
mbed_official | 181:a4cbdfbbd2f4 | 68 | |-------|-------| |
mbed_official | 181:a4cbdfbbd2f4 | 69 | | PA0 | PA2 | |
mbed_official | 181:a4cbdfbbd2f4 | 70 | | PA6 | PA7 | |
mbed_official | 181:a4cbdfbbd2f4 | 71 | | PA11 | PA12 | |
mbed_official | 181:a4cbdfbbd2f4 | 72 | +---------------+ |
mbed_official | 181:a4cbdfbbd2f4 | 73 | |
mbed_official | 181:a4cbdfbbd2f4 | 74 | |
mbed_official | 181:a4cbdfbbd2f4 | 75 | ##### How to use this driver ##### |
mbed_official | 181:a4cbdfbbd2f4 | 76 | ================================================================================ |
mbed_official | 181:a4cbdfbbd2f4 | 77 | [..] |
mbed_official | 181:a4cbdfbbd2f4 | 78 | This driver provides functions to configure and program the Comparators of all STM32L0xx devices. |
mbed_official | 181:a4cbdfbbd2f4 | 79 | |
mbed_official | 181:a4cbdfbbd2f4 | 80 | To use the comparator, perform the following steps: |
mbed_official | 181:a4cbdfbbd2f4 | 81 | |
mbed_official | 181:a4cbdfbbd2f4 | 82 | (#) Initialize the COMP low level resources by implementing the HAL_COMP_MspInit(). |
mbed_official | 181:a4cbdfbbd2f4 | 83 | (++) Enable the SYSCFG APB clock to get write access to comparator register using __SYSCFG_CLK_ENABLE(). |
mbed_official | 181:a4cbdfbbd2f4 | 84 | (++) Configure the comparator input in analog mode using HAL_GPIO_Init(). |
mbed_official | 181:a4cbdfbbd2f4 | 85 | (++) Configure the comparator output in alternate function mode using HAL_GPIO_Init() to map the comparator |
mbed_official | 181:a4cbdfbbd2f4 | 86 | output to the GPIO pin. |
mbed_official | 181:a4cbdfbbd2f4 | 87 | (++) If required enable the VREFINT reference using HAL_VREFINT_Cmd() and HAL_COMP_EnableBuffer_Cmd(). |
mbed_official | 181:a4cbdfbbd2f4 | 88 | (++) If required enable the COMP interrupt by configuring and enabling EXTI line in Interrupt mode and |
mbed_official | 181:a4cbdfbbd2f4 | 89 | selecting the desired sensitivity level using HAL_GPIO_Init() function. After that enable the comparator |
mbed_official | 181:a4cbdfbbd2f4 | 90 | interrupt vector using HAL_NVIC_EnableIRQ() function. |
mbed_official | 181:a4cbdfbbd2f4 | 91 | |
mbed_official | 181:a4cbdfbbd2f4 | 92 | (#) Configure the comparator using HAL_COMP_Init() function: |
mbed_official | 181:a4cbdfbbd2f4 | 93 | (++) Select the inverting input |
mbed_official | 181:a4cbdfbbd2f4 | 94 | (++) Select the non-inverting input |
mbed_official | 181:a4cbdfbbd2f4 | 95 | (++) Select the output polarity |
mbed_official | 181:a4cbdfbbd2f4 | 96 | (++) Select the power mode |
mbed_official | 181:a4cbdfbbd2f4 | 97 | (++) Select the window mode |
mbed_official | 181:a4cbdfbbd2f4 | 98 | |
mbed_official | 181:a4cbdfbbd2f4 | 99 | (#) Enable the comparator using HAL_COMP_Start() function |
mbed_official | 181:a4cbdfbbd2f4 | 100 | |
mbed_official | 181:a4cbdfbbd2f4 | 101 | @endverbatim |
mbed_official | 181:a4cbdfbbd2f4 | 102 | ****************************************************************************** |
mbed_official | 181:a4cbdfbbd2f4 | 103 | * @attention |
mbed_official | 181:a4cbdfbbd2f4 | 104 | * |
mbed_official | 181:a4cbdfbbd2f4 | 105 | * <h2><center>© COPYRIGHT(c) 2014 STMicroelectronics</center></h2> |
mbed_official | 181:a4cbdfbbd2f4 | 106 | * |
mbed_official | 181:a4cbdfbbd2f4 | 107 | * Redistribution and use in source and binary forms, with or without modification, |
mbed_official | 181:a4cbdfbbd2f4 | 108 | * are permitted provided that the following conditions are met: |
mbed_official | 181:a4cbdfbbd2f4 | 109 | * 1. Redistributions of source code must retain the above copyright notice, |
mbed_official | 181:a4cbdfbbd2f4 | 110 | * this list of conditions and the following disclaimer. |
mbed_official | 181:a4cbdfbbd2f4 | 111 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
mbed_official | 181:a4cbdfbbd2f4 | 112 | * this list of conditions and the following disclaimer in the documentation |
mbed_official | 181:a4cbdfbbd2f4 | 113 | * and/or other materials provided with the distribution. |
mbed_official | 181:a4cbdfbbd2f4 | 114 | * 3. Neither the name of STMicroelectronics nor the names of its contributors |
mbed_official | 181:a4cbdfbbd2f4 | 115 | * may be used to endorse or promote products derived from this software |
mbed_official | 181:a4cbdfbbd2f4 | 116 | * without specific prior written permission. |
mbed_official | 181:a4cbdfbbd2f4 | 117 | * |
mbed_official | 181:a4cbdfbbd2f4 | 118 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
mbed_official | 181:a4cbdfbbd2f4 | 119 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
mbed_official | 181:a4cbdfbbd2f4 | 120 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
mbed_official | 181:a4cbdfbbd2f4 | 121 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
mbed_official | 181:a4cbdfbbd2f4 | 122 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
mbed_official | 181:a4cbdfbbd2f4 | 123 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
mbed_official | 181:a4cbdfbbd2f4 | 124 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
mbed_official | 181:a4cbdfbbd2f4 | 125 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
mbed_official | 181:a4cbdfbbd2f4 | 126 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
mbed_official | 181:a4cbdfbbd2f4 | 127 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
mbed_official | 181:a4cbdfbbd2f4 | 128 | * |
mbed_official | 181:a4cbdfbbd2f4 | 129 | ****************************************************************************** |
mbed_official | 181:a4cbdfbbd2f4 | 130 | */ |
mbed_official | 181:a4cbdfbbd2f4 | 131 | |
mbed_official | 181:a4cbdfbbd2f4 | 132 | /* Includes ------------------------------------------------------------------*/ |
mbed_official | 181:a4cbdfbbd2f4 | 133 | #include "stm32l0xx_hal.h" |
mbed_official | 181:a4cbdfbbd2f4 | 134 | |
mbed_official | 181:a4cbdfbbd2f4 | 135 | /** @addtogroup STM32L0xx_HAL_Driver |
mbed_official | 181:a4cbdfbbd2f4 | 136 | * @{ |
mbed_official | 181:a4cbdfbbd2f4 | 137 | */ |
mbed_official | 181:a4cbdfbbd2f4 | 138 | |
mbed_official | 181:a4cbdfbbd2f4 | 139 | /** @defgroup COMP |
mbed_official | 181:a4cbdfbbd2f4 | 140 | * @brief COMP HAL module driver |
mbed_official | 181:a4cbdfbbd2f4 | 141 | * @{ |
mbed_official | 181:a4cbdfbbd2f4 | 142 | */ |
mbed_official | 181:a4cbdfbbd2f4 | 143 | |
mbed_official | 181:a4cbdfbbd2f4 | 144 | #ifdef HAL_COMP_MODULE_ENABLED |
mbed_official | 181:a4cbdfbbd2f4 | 145 | |
mbed_official | 181:a4cbdfbbd2f4 | 146 | /* Private typedef -----------------------------------------------------------*/ |
mbed_official | 181:a4cbdfbbd2f4 | 147 | /* Private define ------------------------------------------------------------*/ |
mbed_official | 181:a4cbdfbbd2f4 | 148 | /* CSR register reset value */ |
mbed_official | 181:a4cbdfbbd2f4 | 149 | #define COMP_CSR_RESET_VALUE ((uint32_t)0x00000000) |
mbed_official | 181:a4cbdfbbd2f4 | 150 | |
mbed_official | 181:a4cbdfbbd2f4 | 151 | /* Private macro -------------------------------------------------------------*/ |
mbed_official | 181:a4cbdfbbd2f4 | 152 | /* Private variables ---------------------------------------------------------*/ |
mbed_official | 181:a4cbdfbbd2f4 | 153 | /* Private function prototypes -----------------------------------------------*/ |
mbed_official | 181:a4cbdfbbd2f4 | 154 | /* Private functions ---------------------------------------------------------*/ |
mbed_official | 181:a4cbdfbbd2f4 | 155 | |
mbed_official | 181:a4cbdfbbd2f4 | 156 | /** @defgroup COMP_Private_Functions |
mbed_official | 181:a4cbdfbbd2f4 | 157 | * @{ |
mbed_official | 181:a4cbdfbbd2f4 | 158 | */ |
mbed_official | 181:a4cbdfbbd2f4 | 159 | |
mbed_official | 181:a4cbdfbbd2f4 | 160 | /** @defgroup HAL_COMP_Group1 Initialization/de-initialization functions |
mbed_official | 181:a4cbdfbbd2f4 | 161 | * @brief Initialization and Configuration functions |
mbed_official | 181:a4cbdfbbd2f4 | 162 | * |
mbed_official | 181:a4cbdfbbd2f4 | 163 | @verbatim |
mbed_official | 181:a4cbdfbbd2f4 | 164 | =============================================================================== |
mbed_official | 181:a4cbdfbbd2f4 | 165 | ##### Initialization/de-initialization functions ##### |
mbed_official | 181:a4cbdfbbd2f4 | 166 | =============================================================================== |
mbed_official | 181:a4cbdfbbd2f4 | 167 | [..] This section provides functions to initialize and de-initialize comparators |
mbed_official | 181:a4cbdfbbd2f4 | 168 | |
mbed_official | 181:a4cbdfbbd2f4 | 169 | @endverbatim |
mbed_official | 181:a4cbdfbbd2f4 | 170 | * @{ |
mbed_official | 181:a4cbdfbbd2f4 | 171 | */ |
mbed_official | 181:a4cbdfbbd2f4 | 172 | |
mbed_official | 181:a4cbdfbbd2f4 | 173 | /** |
mbed_official | 181:a4cbdfbbd2f4 | 174 | * @brief Initializes the COMP according to the specified |
mbed_official | 181:a4cbdfbbd2f4 | 175 | * parameters in the COMP_InitTypeDef and create the associated handle. |
mbed_official | 181:a4cbdfbbd2f4 | 176 | * @note If the selected comparator is locked, initialization can't be performed. |
mbed_official | 181:a4cbdfbbd2f4 | 177 | * To unlock the configuration, perform a system reset. |
mbed_official | 181:a4cbdfbbd2f4 | 178 | * @param hcomp: COMP handle |
mbed_official | 181:a4cbdfbbd2f4 | 179 | * @retval HAL status |
mbed_official | 181:a4cbdfbbd2f4 | 180 | */ |
mbed_official | 181:a4cbdfbbd2f4 | 181 | HAL_StatusTypeDef HAL_COMP_Init(COMP_HandleTypeDef *hcomp) |
mbed_official | 181:a4cbdfbbd2f4 | 182 | { |
mbed_official | 181:a4cbdfbbd2f4 | 183 | HAL_StatusTypeDef status = HAL_OK; |
mbed_official | 181:a4cbdfbbd2f4 | 184 | |
mbed_official | 181:a4cbdfbbd2f4 | 185 | /* Check the COMP handle allocation and lock status */ |
mbed_official | 181:a4cbdfbbd2f4 | 186 | if((hcomp == NULL) || ((hcomp->State & COMP_STATE_BIT_LOCK) != 0x00)) |
mbed_official | 181:a4cbdfbbd2f4 | 187 | { |
mbed_official | 181:a4cbdfbbd2f4 | 188 | status = HAL_ERROR; |
mbed_official | 181:a4cbdfbbd2f4 | 189 | } |
mbed_official | 181:a4cbdfbbd2f4 | 190 | else |
mbed_official | 181:a4cbdfbbd2f4 | 191 | { |
mbed_official | 181:a4cbdfbbd2f4 | 192 | /* Check the parameter */ |
mbed_official | 181:a4cbdfbbd2f4 | 193 | assert_param(IS_COMP_ALL_INSTANCE(hcomp->Instance)); |
mbed_official | 181:a4cbdfbbd2f4 | 194 | assert_param(IS_COMP_INVERTINGINPUT(hcomp->Init.InvertingInput)); |
mbed_official | 181:a4cbdfbbd2f4 | 195 | assert_param(IS_COMP_NONINVERTINGINPUT(hcomp->Init.NonInvertingInput)); |
mbed_official | 181:a4cbdfbbd2f4 | 196 | assert_param(IS_COMP_OUTPUTPOL(hcomp->Init.OutputPol)); |
mbed_official | 181:a4cbdfbbd2f4 | 197 | assert_param(IS_COMP_MODE(hcomp->Init.Mode)); |
mbed_official | 181:a4cbdfbbd2f4 | 198 | |
mbed_official | 181:a4cbdfbbd2f4 | 199 | if(hcomp->Init.WindowMode != COMP_WINDOWMODE_DISABLED) |
mbed_official | 181:a4cbdfbbd2f4 | 200 | { |
mbed_official | 181:a4cbdfbbd2f4 | 201 | assert_param(IS_COMP_WINDOWMODE_INSTANCE(hcomp->Instance)); |
mbed_official | 181:a4cbdfbbd2f4 | 202 | assert_param(IS_COMP_WINDOWMODE(hcomp->Init.WindowMode)); |
mbed_official | 181:a4cbdfbbd2f4 | 203 | } |
mbed_official | 181:a4cbdfbbd2f4 | 204 | |
mbed_official | 181:a4cbdfbbd2f4 | 205 | if(hcomp->State == HAL_COMP_STATE_RESET) |
mbed_official | 181:a4cbdfbbd2f4 | 206 | { |
mbed_official | 181:a4cbdfbbd2f4 | 207 | /* Init the low level hardware : SYSCFG to access comparators */ |
mbed_official | 181:a4cbdfbbd2f4 | 208 | HAL_COMP_MspInit(hcomp); |
mbed_official | 181:a4cbdfbbd2f4 | 209 | } |
mbed_official | 181:a4cbdfbbd2f4 | 210 | |
mbed_official | 181:a4cbdfbbd2f4 | 211 | /* Change COMP peripheral state */ |
mbed_official | 181:a4cbdfbbd2f4 | 212 | hcomp->State = HAL_COMP_STATE_BUSY; |
mbed_official | 181:a4cbdfbbd2f4 | 213 | |
mbed_official | 181:a4cbdfbbd2f4 | 214 | /* Set COMP parameters */ |
mbed_official | 181:a4cbdfbbd2f4 | 215 | /* Set COMPxINSEL bits according to hcomp->Init.InvertingInput value */ |
mbed_official | 181:a4cbdfbbd2f4 | 216 | /* Set COMPxNONINSEL bits according to hcomp->Init.NonInvertingInput value */ |
mbed_official | 181:a4cbdfbbd2f4 | 217 | /* Set COMPxPOL bit according to hcomp->Init.OutputPol value */ |
mbed_official | 181:a4cbdfbbd2f4 | 218 | /* Set COMPxMODE bits according to hcomp->Init.Mode value */ |
mbed_official | 181:a4cbdfbbd2f4 | 219 | /* Set COMP1WM bit according to hcomp->Init.WindowMode value */ |
mbed_official | 181:a4cbdfbbd2f4 | 220 | MODIFY_REG(hcomp->Instance->CSR, COMP_CSR_UPDATE_PARAMETERS_MASK, \ |
mbed_official | 181:a4cbdfbbd2f4 | 221 | hcomp->Init.InvertingInput | \ |
mbed_official | 181:a4cbdfbbd2f4 | 222 | hcomp->Init.NonInvertingInput | \ |
mbed_official | 181:a4cbdfbbd2f4 | 223 | hcomp->Init.OutputPol | \ |
mbed_official | 181:a4cbdfbbd2f4 | 224 | hcomp->Init.Mode | \ |
mbed_official | 181:a4cbdfbbd2f4 | 225 | hcomp->Init.WindowMode); |
mbed_official | 181:a4cbdfbbd2f4 | 226 | |
mbed_official | 181:a4cbdfbbd2f4 | 227 | |
mbed_official | 181:a4cbdfbbd2f4 | 228 | /* Initialize the COMP state*/ |
mbed_official | 181:a4cbdfbbd2f4 | 229 | hcomp->State = HAL_COMP_STATE_READY; |
mbed_official | 181:a4cbdfbbd2f4 | 230 | |
mbed_official | 181:a4cbdfbbd2f4 | 231 | } |
mbed_official | 181:a4cbdfbbd2f4 | 232 | |
mbed_official | 181:a4cbdfbbd2f4 | 233 | return status; |
mbed_official | 181:a4cbdfbbd2f4 | 234 | } |
mbed_official | 181:a4cbdfbbd2f4 | 235 | |
mbed_official | 181:a4cbdfbbd2f4 | 236 | /** |
mbed_official | 181:a4cbdfbbd2f4 | 237 | * @brief DeInitializes the COMP peripheral |
mbed_official | 181:a4cbdfbbd2f4 | 238 | * @note Deinitialization can't be performed if the COMP configuration is locked. |
mbed_official | 181:a4cbdfbbd2f4 | 239 | * To unlock the configuration, perform a system reset. |
mbed_official | 181:a4cbdfbbd2f4 | 240 | * @param hcomp: COMP handle |
mbed_official | 181:a4cbdfbbd2f4 | 241 | * @retval HAL status |
mbed_official | 181:a4cbdfbbd2f4 | 242 | */ |
mbed_official | 181:a4cbdfbbd2f4 | 243 | HAL_StatusTypeDef HAL_COMP_DeInit(COMP_HandleTypeDef *hcomp) |
mbed_official | 181:a4cbdfbbd2f4 | 244 | { |
mbed_official | 181:a4cbdfbbd2f4 | 245 | HAL_StatusTypeDef status = HAL_OK; |
mbed_official | 181:a4cbdfbbd2f4 | 246 | |
mbed_official | 181:a4cbdfbbd2f4 | 247 | /* Check the COMP handle allocation and lock status */ |
mbed_official | 181:a4cbdfbbd2f4 | 248 | if((hcomp == NULL) || ((hcomp->State & COMP_STATE_BIT_LOCK) != 0x00)) |
mbed_official | 181:a4cbdfbbd2f4 | 249 | { |
mbed_official | 181:a4cbdfbbd2f4 | 250 | status = HAL_ERROR; |
mbed_official | 181:a4cbdfbbd2f4 | 251 | } |
mbed_official | 181:a4cbdfbbd2f4 | 252 | else |
mbed_official | 181:a4cbdfbbd2f4 | 253 | { |
mbed_official | 181:a4cbdfbbd2f4 | 254 | /* Check the parameter */ |
mbed_official | 181:a4cbdfbbd2f4 | 255 | assert_param(IS_COMP_ALL_INSTANCE(hcomp->Instance)); |
mbed_official | 181:a4cbdfbbd2f4 | 256 | |
mbed_official | 181:a4cbdfbbd2f4 | 257 | /* Set COMP_CSR register to reset value */ |
mbed_official | 181:a4cbdfbbd2f4 | 258 | WRITE_REG(hcomp->Instance->CSR, COMP_CSR_RESET_VALUE); |
mbed_official | 181:a4cbdfbbd2f4 | 259 | |
mbed_official | 181:a4cbdfbbd2f4 | 260 | /* DeInit the low level hardware: SYSCFG, GPIO, CLOCK and NVIC */ |
mbed_official | 181:a4cbdfbbd2f4 | 261 | HAL_COMP_MspDeInit(hcomp); |
mbed_official | 181:a4cbdfbbd2f4 | 262 | |
mbed_official | 181:a4cbdfbbd2f4 | 263 | hcomp->State = HAL_COMP_STATE_RESET; |
mbed_official | 181:a4cbdfbbd2f4 | 264 | |
mbed_official | 181:a4cbdfbbd2f4 | 265 | /* Release Lock */ |
mbed_official | 181:a4cbdfbbd2f4 | 266 | __HAL_UNLOCK(hcomp); |
mbed_official | 181:a4cbdfbbd2f4 | 267 | } |
mbed_official | 181:a4cbdfbbd2f4 | 268 | |
mbed_official | 181:a4cbdfbbd2f4 | 269 | return status; |
mbed_official | 181:a4cbdfbbd2f4 | 270 | } |
mbed_official | 181:a4cbdfbbd2f4 | 271 | |
mbed_official | 181:a4cbdfbbd2f4 | 272 | /** |
mbed_official | 181:a4cbdfbbd2f4 | 273 | * @brief Initializes the COMP MSP. |
mbed_official | 181:a4cbdfbbd2f4 | 274 | * @param hcomp: COMP handle |
mbed_official | 181:a4cbdfbbd2f4 | 275 | * @retval None |
mbed_official | 181:a4cbdfbbd2f4 | 276 | */ |
mbed_official | 181:a4cbdfbbd2f4 | 277 | __weak void HAL_COMP_MspInit(COMP_HandleTypeDef *hcomp) |
mbed_official | 181:a4cbdfbbd2f4 | 278 | { |
mbed_official | 181:a4cbdfbbd2f4 | 279 | /* NOTE : This function Should not be modified, when the callback is needed, |
mbed_official | 181:a4cbdfbbd2f4 | 280 | the HAL_COMP_MspInit could be implenetd in the user file |
mbed_official | 181:a4cbdfbbd2f4 | 281 | */ |
mbed_official | 181:a4cbdfbbd2f4 | 282 | } |
mbed_official | 181:a4cbdfbbd2f4 | 283 | |
mbed_official | 181:a4cbdfbbd2f4 | 284 | /** |
mbed_official | 181:a4cbdfbbd2f4 | 285 | * @brief DeInitializes COMP MSP. |
mbed_official | 181:a4cbdfbbd2f4 | 286 | * @param hcomp: COMP handle |
mbed_official | 181:a4cbdfbbd2f4 | 287 | * @retval None |
mbed_official | 181:a4cbdfbbd2f4 | 288 | */ |
mbed_official | 181:a4cbdfbbd2f4 | 289 | __weak void HAL_COMP_MspDeInit(COMP_HandleTypeDef *hcomp) |
mbed_official | 181:a4cbdfbbd2f4 | 290 | { |
mbed_official | 181:a4cbdfbbd2f4 | 291 | /* NOTE : This function Should not be modified, when the callback is needed, |
mbed_official | 181:a4cbdfbbd2f4 | 292 | the HAL_COMP_MspDeInit could be implenetd in the user file |
mbed_official | 181:a4cbdfbbd2f4 | 293 | */ |
mbed_official | 181:a4cbdfbbd2f4 | 294 | } |
mbed_official | 181:a4cbdfbbd2f4 | 295 | |
mbed_official | 181:a4cbdfbbd2f4 | 296 | /** |
mbed_official | 181:a4cbdfbbd2f4 | 297 | * @} |
mbed_official | 181:a4cbdfbbd2f4 | 298 | */ |
mbed_official | 181:a4cbdfbbd2f4 | 299 | |
mbed_official | 181:a4cbdfbbd2f4 | 300 | /** @defgroup HAL_COMP_Group2 I/O operation functions |
mbed_official | 181:a4cbdfbbd2f4 | 301 | * @brief Data transfers functions |
mbed_official | 181:a4cbdfbbd2f4 | 302 | * |
mbed_official | 181:a4cbdfbbd2f4 | 303 | @verbatim |
mbed_official | 181:a4cbdfbbd2f4 | 304 | =============================================================================== |
mbed_official | 181:a4cbdfbbd2f4 | 305 | ##### IO operation functions ##### |
mbed_official | 181:a4cbdfbbd2f4 | 306 | =============================================================================== |
mbed_official | 181:a4cbdfbbd2f4 | 307 | [..] |
mbed_official | 181:a4cbdfbbd2f4 | 308 | This subsection provides a set of functions allowing to manage the COMP data |
mbed_official | 181:a4cbdfbbd2f4 | 309 | transfers. |
mbed_official | 181:a4cbdfbbd2f4 | 310 | |
mbed_official | 181:a4cbdfbbd2f4 | 311 | @endverbatim |
mbed_official | 181:a4cbdfbbd2f4 | 312 | * @{ |
mbed_official | 181:a4cbdfbbd2f4 | 313 | */ |
mbed_official | 181:a4cbdfbbd2f4 | 314 | |
mbed_official | 181:a4cbdfbbd2f4 | 315 | /** |
mbed_official | 181:a4cbdfbbd2f4 | 316 | * @brief Start the comparator |
mbed_official | 181:a4cbdfbbd2f4 | 317 | * @param hcomp: COMP handle |
mbed_official | 181:a4cbdfbbd2f4 | 318 | * @retval HAL status |
mbed_official | 181:a4cbdfbbd2f4 | 319 | */ |
mbed_official | 181:a4cbdfbbd2f4 | 320 | HAL_StatusTypeDef HAL_COMP_Start(COMP_HandleTypeDef *hcomp) |
mbed_official | 181:a4cbdfbbd2f4 | 321 | { |
mbed_official | 181:a4cbdfbbd2f4 | 322 | HAL_StatusTypeDef status = HAL_OK; |
mbed_official | 181:a4cbdfbbd2f4 | 323 | |
mbed_official | 181:a4cbdfbbd2f4 | 324 | /* Check the COMP handle allocation and lock status */ |
mbed_official | 181:a4cbdfbbd2f4 | 325 | if((hcomp == NULL) || ((hcomp->State & COMP_STATE_BIT_LOCK) != 0x00)) |
mbed_official | 181:a4cbdfbbd2f4 | 326 | { |
mbed_official | 181:a4cbdfbbd2f4 | 327 | status = HAL_ERROR; |
mbed_official | 181:a4cbdfbbd2f4 | 328 | } |
mbed_official | 181:a4cbdfbbd2f4 | 329 | else |
mbed_official | 181:a4cbdfbbd2f4 | 330 | { |
mbed_official | 181:a4cbdfbbd2f4 | 331 | /* Check the parameter */ |
mbed_official | 181:a4cbdfbbd2f4 | 332 | assert_param(IS_COMP_ALL_INSTANCE(hcomp->Instance)); |
mbed_official | 181:a4cbdfbbd2f4 | 333 | |
mbed_official | 181:a4cbdfbbd2f4 | 334 | if(hcomp->State == HAL_COMP_STATE_READY) |
mbed_official | 181:a4cbdfbbd2f4 | 335 | { |
mbed_official | 181:a4cbdfbbd2f4 | 336 | /* Enable the selected comparator */ |
mbed_official | 181:a4cbdfbbd2f4 | 337 | __HAL_COMP_ENABLE(hcomp); |
mbed_official | 181:a4cbdfbbd2f4 | 338 | |
mbed_official | 181:a4cbdfbbd2f4 | 339 | hcomp->State = HAL_COMP_STATE_BUSY; |
mbed_official | 181:a4cbdfbbd2f4 | 340 | } |
mbed_official | 181:a4cbdfbbd2f4 | 341 | else |
mbed_official | 181:a4cbdfbbd2f4 | 342 | { |
mbed_official | 181:a4cbdfbbd2f4 | 343 | status = HAL_ERROR; |
mbed_official | 181:a4cbdfbbd2f4 | 344 | } |
mbed_official | 181:a4cbdfbbd2f4 | 345 | } |
mbed_official | 181:a4cbdfbbd2f4 | 346 | |
mbed_official | 181:a4cbdfbbd2f4 | 347 | return status; |
mbed_official | 181:a4cbdfbbd2f4 | 348 | } |
mbed_official | 181:a4cbdfbbd2f4 | 349 | |
mbed_official | 181:a4cbdfbbd2f4 | 350 | /** |
mbed_official | 181:a4cbdfbbd2f4 | 351 | * @brief Stop the comparator |
mbed_official | 181:a4cbdfbbd2f4 | 352 | * @param hcomp: COMP handle |
mbed_official | 181:a4cbdfbbd2f4 | 353 | * @retval HAL status |
mbed_official | 181:a4cbdfbbd2f4 | 354 | */ |
mbed_official | 181:a4cbdfbbd2f4 | 355 | HAL_StatusTypeDef HAL_COMP_Stop(COMP_HandleTypeDef *hcomp) |
mbed_official | 181:a4cbdfbbd2f4 | 356 | { |
mbed_official | 181:a4cbdfbbd2f4 | 357 | HAL_StatusTypeDef status = HAL_OK; |
mbed_official | 181:a4cbdfbbd2f4 | 358 | |
mbed_official | 181:a4cbdfbbd2f4 | 359 | /* Check the COMP handle allocation and lock status */ |
mbed_official | 181:a4cbdfbbd2f4 | 360 | if((hcomp == NULL) || ((hcomp->State & COMP_STATE_BIT_LOCK) != 0x00)) |
mbed_official | 181:a4cbdfbbd2f4 | 361 | { |
mbed_official | 181:a4cbdfbbd2f4 | 362 | status = HAL_ERROR; |
mbed_official | 181:a4cbdfbbd2f4 | 363 | } |
mbed_official | 181:a4cbdfbbd2f4 | 364 | else |
mbed_official | 181:a4cbdfbbd2f4 | 365 | { |
mbed_official | 181:a4cbdfbbd2f4 | 366 | /* Check the parameter */ |
mbed_official | 181:a4cbdfbbd2f4 | 367 | assert_param(IS_COMP_ALL_INSTANCE(hcomp->Instance)); |
mbed_official | 181:a4cbdfbbd2f4 | 368 | |
mbed_official | 181:a4cbdfbbd2f4 | 369 | if(hcomp->State == HAL_COMP_STATE_BUSY) |
mbed_official | 181:a4cbdfbbd2f4 | 370 | { |
mbed_official | 181:a4cbdfbbd2f4 | 371 | /* Disable the selected comparator */ |
mbed_official | 181:a4cbdfbbd2f4 | 372 | __HAL_COMP_DISABLE(hcomp); |
mbed_official | 181:a4cbdfbbd2f4 | 373 | |
mbed_official | 181:a4cbdfbbd2f4 | 374 | hcomp->State = HAL_COMP_STATE_READY; |
mbed_official | 181:a4cbdfbbd2f4 | 375 | } |
mbed_official | 181:a4cbdfbbd2f4 | 376 | else |
mbed_official | 181:a4cbdfbbd2f4 | 377 | { |
mbed_official | 181:a4cbdfbbd2f4 | 378 | status = HAL_ERROR; |
mbed_official | 181:a4cbdfbbd2f4 | 379 | } |
mbed_official | 181:a4cbdfbbd2f4 | 380 | } |
mbed_official | 181:a4cbdfbbd2f4 | 381 | |
mbed_official | 181:a4cbdfbbd2f4 | 382 | return status; |
mbed_official | 181:a4cbdfbbd2f4 | 383 | } |
mbed_official | 181:a4cbdfbbd2f4 | 384 | |
mbed_official | 181:a4cbdfbbd2f4 | 385 | /** |
mbed_official | 181:a4cbdfbbd2f4 | 386 | * @brief Enables the interrupt and starts the comparator |
mbed_official | 181:a4cbdfbbd2f4 | 387 | * @param hcomp: COMP handle |
mbed_official | 181:a4cbdfbbd2f4 | 388 | * @param mode: IT trigger mode: a value of @ref COMP_TriggerMode |
mbed_official | 181:a4cbdfbbd2f4 | 389 | * @retval HAL status. |
mbed_official | 181:a4cbdfbbd2f4 | 390 | */ |
mbed_official | 181:a4cbdfbbd2f4 | 391 | HAL_StatusTypeDef HAL_COMP_Start_IT(COMP_HandleTypeDef *hcomp) |
mbed_official | 181:a4cbdfbbd2f4 | 392 | { |
mbed_official | 181:a4cbdfbbd2f4 | 393 | HAL_StatusTypeDef status = HAL_OK; |
mbed_official | 181:a4cbdfbbd2f4 | 394 | uint32_t extiline = 0; |
mbed_official | 181:a4cbdfbbd2f4 | 395 | |
mbed_official | 181:a4cbdfbbd2f4 | 396 | status = HAL_COMP_Start(hcomp); |
mbed_official | 181:a4cbdfbbd2f4 | 397 | if(status == HAL_OK) |
mbed_official | 181:a4cbdfbbd2f4 | 398 | { |
mbed_official | 181:a4cbdfbbd2f4 | 399 | /* Check the Exti Line output configuration */ |
mbed_official | 181:a4cbdfbbd2f4 | 400 | extiline = __HAL_COMP_GET_EXTI_LINE(hcomp->Instance); |
mbed_official | 181:a4cbdfbbd2f4 | 401 | |
mbed_official | 181:a4cbdfbbd2f4 | 402 | /* Configure the rising edge */ |
mbed_official | 181:a4cbdfbbd2f4 | 403 | if((hcomp->Init.TriggerMode & COMP_TRIGGERMODE_IT_RISING) != 0x00) |
mbed_official | 181:a4cbdfbbd2f4 | 404 | { |
mbed_official | 181:a4cbdfbbd2f4 | 405 | __HAL_COMP_EXTI_RISING_IT_ENABLE(extiline); |
mbed_official | 181:a4cbdfbbd2f4 | 406 | } |
mbed_official | 181:a4cbdfbbd2f4 | 407 | else |
mbed_official | 181:a4cbdfbbd2f4 | 408 | { |
mbed_official | 181:a4cbdfbbd2f4 | 409 | __HAL_COMP_EXTI_RISING_IT_DISABLE(extiline); |
mbed_official | 181:a4cbdfbbd2f4 | 410 | } |
mbed_official | 181:a4cbdfbbd2f4 | 411 | |
mbed_official | 181:a4cbdfbbd2f4 | 412 | /* Configure the falling edge */ |
mbed_official | 181:a4cbdfbbd2f4 | 413 | if((hcomp->Init.TriggerMode & COMP_TRIGGERMODE_IT_FALLING) != 0x00) |
mbed_official | 181:a4cbdfbbd2f4 | 414 | { |
mbed_official | 181:a4cbdfbbd2f4 | 415 | __HAL_COMP_EXTI_FALLING_IT_ENABLE(extiline); |
mbed_official | 181:a4cbdfbbd2f4 | 416 | } |
mbed_official | 181:a4cbdfbbd2f4 | 417 | else |
mbed_official | 181:a4cbdfbbd2f4 | 418 | { |
mbed_official | 181:a4cbdfbbd2f4 | 419 | __HAL_COMP_EXTI_FALLING_IT_DISABLE(extiline); |
mbed_official | 181:a4cbdfbbd2f4 | 420 | } |
mbed_official | 181:a4cbdfbbd2f4 | 421 | |
mbed_official | 181:a4cbdfbbd2f4 | 422 | /* Enable Exti interrupt mode */ |
mbed_official | 181:a4cbdfbbd2f4 | 423 | __HAL_COMP_EXTI_ENABLE_IT(extiline); |
mbed_official | 181:a4cbdfbbd2f4 | 424 | |
mbed_official | 181:a4cbdfbbd2f4 | 425 | /* Clear COMP Exti pending bit */ |
mbed_official | 181:a4cbdfbbd2f4 | 426 | __HAL_COMP_EXTI_CLEAR_FLAG(extiline); |
mbed_official | 181:a4cbdfbbd2f4 | 427 | } |
mbed_official | 181:a4cbdfbbd2f4 | 428 | |
mbed_official | 181:a4cbdfbbd2f4 | 429 | return status; |
mbed_official | 181:a4cbdfbbd2f4 | 430 | } |
mbed_official | 181:a4cbdfbbd2f4 | 431 | |
mbed_official | 181:a4cbdfbbd2f4 | 432 | /** |
mbed_official | 181:a4cbdfbbd2f4 | 433 | * @brief Disable the interrupt and Stop the comparator |
mbed_official | 181:a4cbdfbbd2f4 | 434 | * @param hcomp: COMP handle |
mbed_official | 181:a4cbdfbbd2f4 | 435 | * @retval HAL status |
mbed_official | 181:a4cbdfbbd2f4 | 436 | */ |
mbed_official | 181:a4cbdfbbd2f4 | 437 | HAL_StatusTypeDef HAL_COMP_Stop_IT(COMP_HandleTypeDef *hcomp) |
mbed_official | 181:a4cbdfbbd2f4 | 438 | { |
mbed_official | 181:a4cbdfbbd2f4 | 439 | HAL_StatusTypeDef status = HAL_OK; |
mbed_official | 181:a4cbdfbbd2f4 | 440 | |
mbed_official | 181:a4cbdfbbd2f4 | 441 | /* Disable the Exti Line interrupt mode */ |
mbed_official | 181:a4cbdfbbd2f4 | 442 | __HAL_COMP_EXTI_DISABLE_IT(__HAL_COMP_GET_EXTI_LINE(hcomp->Instance)); |
mbed_official | 181:a4cbdfbbd2f4 | 443 | |
mbed_official | 181:a4cbdfbbd2f4 | 444 | status = HAL_COMP_Stop(hcomp); |
mbed_official | 181:a4cbdfbbd2f4 | 445 | |
mbed_official | 181:a4cbdfbbd2f4 | 446 | return status; |
mbed_official | 181:a4cbdfbbd2f4 | 447 | } |
mbed_official | 181:a4cbdfbbd2f4 | 448 | |
mbed_official | 181:a4cbdfbbd2f4 | 449 | /** |
mbed_official | 181:a4cbdfbbd2f4 | 450 | * @brief Comparator IRQ Handler |
mbed_official | 181:a4cbdfbbd2f4 | 451 | * @param hcomp: COMP handle |
mbed_official | 181:a4cbdfbbd2f4 | 452 | * @retval HAL status |
mbed_official | 181:a4cbdfbbd2f4 | 453 | */ |
mbed_official | 181:a4cbdfbbd2f4 | 454 | void HAL_COMP_IRQHandler(COMP_HandleTypeDef *hcomp) |
mbed_official | 181:a4cbdfbbd2f4 | 455 | { |
mbed_official | 181:a4cbdfbbd2f4 | 456 | uint32_t extiline = __HAL_COMP_GET_EXTI_LINE(hcomp->Instance); |
mbed_official | 181:a4cbdfbbd2f4 | 457 | |
mbed_official | 181:a4cbdfbbd2f4 | 458 | /* Check COMP Exti flag */ |
mbed_official | 181:a4cbdfbbd2f4 | 459 | if(__HAL_COMP_EXTI_GET_FLAG(extiline) != RESET) |
mbed_official | 181:a4cbdfbbd2f4 | 460 | { |
mbed_official | 181:a4cbdfbbd2f4 | 461 | /* Clear COMP Exti pending bit */ |
mbed_official | 181:a4cbdfbbd2f4 | 462 | __HAL_COMP_EXTI_CLEAR_FLAG(extiline); |
mbed_official | 181:a4cbdfbbd2f4 | 463 | } |
mbed_official | 181:a4cbdfbbd2f4 | 464 | |
mbed_official | 181:a4cbdfbbd2f4 | 465 | /* COMP trigger user callback */ |
mbed_official | 181:a4cbdfbbd2f4 | 466 | HAL_COMP_TriggerCallback(hcomp); |
mbed_official | 181:a4cbdfbbd2f4 | 467 | } |
mbed_official | 181:a4cbdfbbd2f4 | 468 | |
mbed_official | 181:a4cbdfbbd2f4 | 469 | /** |
mbed_official | 181:a4cbdfbbd2f4 | 470 | * @} |
mbed_official | 181:a4cbdfbbd2f4 | 471 | */ |
mbed_official | 181:a4cbdfbbd2f4 | 472 | |
mbed_official | 181:a4cbdfbbd2f4 | 473 | /** @defgroup HAL_COMP_Group3 Peripheral Control functions |
mbed_official | 181:a4cbdfbbd2f4 | 474 | * @brief management functions |
mbed_official | 181:a4cbdfbbd2f4 | 475 | * |
mbed_official | 181:a4cbdfbbd2f4 | 476 | @verbatim |
mbed_official | 181:a4cbdfbbd2f4 | 477 | =============================================================================== |
mbed_official | 181:a4cbdfbbd2f4 | 478 | ##### Peripheral Control functions ##### |
mbed_official | 181:a4cbdfbbd2f4 | 479 | =============================================================================== |
mbed_official | 181:a4cbdfbbd2f4 | 480 | [..] |
mbed_official | 181:a4cbdfbbd2f4 | 481 | This subsection provides a set of functions allowing to control the COMP data |
mbed_official | 181:a4cbdfbbd2f4 | 482 | transfers. |
mbed_official | 181:a4cbdfbbd2f4 | 483 | |
mbed_official | 181:a4cbdfbbd2f4 | 484 | @endverbatim |
mbed_official | 181:a4cbdfbbd2f4 | 485 | * @{ |
mbed_official | 181:a4cbdfbbd2f4 | 486 | */ |
mbed_official | 181:a4cbdfbbd2f4 | 487 | |
mbed_official | 181:a4cbdfbbd2f4 | 488 | /** |
mbed_official | 181:a4cbdfbbd2f4 | 489 | * @brief Lock the selected comparator configuration. |
mbed_official | 181:a4cbdfbbd2f4 | 490 | * @param hcomp: COMP handle |
mbed_official | 181:a4cbdfbbd2f4 | 491 | * @retval HAL status |
mbed_official | 181:a4cbdfbbd2f4 | 492 | */ |
mbed_official | 181:a4cbdfbbd2f4 | 493 | HAL_StatusTypeDef HAL_COMP_Lock(COMP_HandleTypeDef *hcomp) |
mbed_official | 181:a4cbdfbbd2f4 | 494 | { |
mbed_official | 181:a4cbdfbbd2f4 | 495 | HAL_StatusTypeDef status = HAL_OK; |
mbed_official | 181:a4cbdfbbd2f4 | 496 | |
mbed_official | 181:a4cbdfbbd2f4 | 497 | /* Check the COMP handle allocation and lock status */ |
mbed_official | 181:a4cbdfbbd2f4 | 498 | if((hcomp == NULL) || ((hcomp->State & COMP_STATE_BIT_LOCK) != 0x00)) |
mbed_official | 181:a4cbdfbbd2f4 | 499 | { |
mbed_official | 181:a4cbdfbbd2f4 | 500 | status = HAL_ERROR; |
mbed_official | 181:a4cbdfbbd2f4 | 501 | } |
mbed_official | 181:a4cbdfbbd2f4 | 502 | else |
mbed_official | 181:a4cbdfbbd2f4 | 503 | { |
mbed_official | 181:a4cbdfbbd2f4 | 504 | /* Check the parameter */ |
mbed_official | 181:a4cbdfbbd2f4 | 505 | assert_param(IS_COMP_ALL_INSTANCE(hcomp->Instance)); |
mbed_official | 181:a4cbdfbbd2f4 | 506 | |
mbed_official | 181:a4cbdfbbd2f4 | 507 | /* Set lock flag */ |
mbed_official | 181:a4cbdfbbd2f4 | 508 | hcomp->State |= COMP_STATE_BIT_LOCK; |
mbed_official | 181:a4cbdfbbd2f4 | 509 | |
mbed_official | 181:a4cbdfbbd2f4 | 510 | /* Set the lock bit corresponding to selected comparator */ |
mbed_official | 181:a4cbdfbbd2f4 | 511 | __HAL_COMP_LOCK(hcomp); |
mbed_official | 181:a4cbdfbbd2f4 | 512 | } |
mbed_official | 181:a4cbdfbbd2f4 | 513 | |
mbed_official | 181:a4cbdfbbd2f4 | 514 | return status; |
mbed_official | 181:a4cbdfbbd2f4 | 515 | } |
mbed_official | 181:a4cbdfbbd2f4 | 516 | |
mbed_official | 181:a4cbdfbbd2f4 | 517 | /** |
mbed_official | 181:a4cbdfbbd2f4 | 518 | * @brief Return the output level (high or low) of the selected comparator. |
mbed_official | 181:a4cbdfbbd2f4 | 519 | * The output level depends on the selected polarity. |
mbed_official | 181:a4cbdfbbd2f4 | 520 | * If the polarity is not inverted: |
mbed_official | 181:a4cbdfbbd2f4 | 521 | * - Comparator output is low when the non-inverting input is at a lower |
mbed_official | 181:a4cbdfbbd2f4 | 522 | * voltage than the inverting input |
mbed_official | 181:a4cbdfbbd2f4 | 523 | * - Comparator output is high when the non-inverting input is at a higher |
mbed_official | 181:a4cbdfbbd2f4 | 524 | * voltage than the inverting input |
mbed_official | 181:a4cbdfbbd2f4 | 525 | * If the polarity is inverted: |
mbed_official | 181:a4cbdfbbd2f4 | 526 | * - Comparator output is high when the non-inverting input is at a lower |
mbed_official | 181:a4cbdfbbd2f4 | 527 | * voltage than the inverting input |
mbed_official | 181:a4cbdfbbd2f4 | 528 | * - Comparator output is low when the non-inverting input is at a higher |
mbed_official | 181:a4cbdfbbd2f4 | 529 | * voltage than the inverting input |
mbed_official | 181:a4cbdfbbd2f4 | 530 | * @param hcomp: COMP handle |
mbed_official | 181:a4cbdfbbd2f4 | 531 | * @retval Returns the selected comparator output level: COMP_OUTPUTLEVEL_LOW or COMP_OUTPUTLEVEL_HIGH. |
mbed_official | 181:a4cbdfbbd2f4 | 532 | * |
mbed_official | 181:a4cbdfbbd2f4 | 533 | */ |
mbed_official | 181:a4cbdfbbd2f4 | 534 | uint32_t HAL_COMP_GetOutputLevel(COMP_HandleTypeDef *hcomp) |
mbed_official | 181:a4cbdfbbd2f4 | 535 | { |
mbed_official | 181:a4cbdfbbd2f4 | 536 | /* Check the parameter */ |
mbed_official | 181:a4cbdfbbd2f4 | 537 | assert_param(IS_COMP_ALL_INSTANCE(hcomp->Instance)); |
mbed_official | 181:a4cbdfbbd2f4 | 538 | |
mbed_official | 181:a4cbdfbbd2f4 | 539 | return((uint32_t)(hcomp->Instance->CSR & COMP_OUTPUTLEVEL_HIGH)); |
mbed_official | 181:a4cbdfbbd2f4 | 540 | } |
mbed_official | 181:a4cbdfbbd2f4 | 541 | |
mbed_official | 181:a4cbdfbbd2f4 | 542 | /** |
mbed_official | 181:a4cbdfbbd2f4 | 543 | * @brief Comparator callback. |
mbed_official | 181:a4cbdfbbd2f4 | 544 | * @param hcomp: COMP handle |
mbed_official | 181:a4cbdfbbd2f4 | 545 | * @retval None |
mbed_official | 181:a4cbdfbbd2f4 | 546 | */ |
mbed_official | 181:a4cbdfbbd2f4 | 547 | __weak void HAL_COMP_TriggerCallback(COMP_HandleTypeDef *hcomp) |
mbed_official | 181:a4cbdfbbd2f4 | 548 | { |
mbed_official | 181:a4cbdfbbd2f4 | 549 | /* NOTE : This function should not be modified, when the callback is needed, |
mbed_official | 181:a4cbdfbbd2f4 | 550 | the HAL_COMP_TriggerCallback should be implemented in the user file |
mbed_official | 181:a4cbdfbbd2f4 | 551 | */ |
mbed_official | 181:a4cbdfbbd2f4 | 552 | } |
mbed_official | 181:a4cbdfbbd2f4 | 553 | |
mbed_official | 181:a4cbdfbbd2f4 | 554 | |
mbed_official | 181:a4cbdfbbd2f4 | 555 | /** |
mbed_official | 181:a4cbdfbbd2f4 | 556 | * @} |
mbed_official | 181:a4cbdfbbd2f4 | 557 | */ |
mbed_official | 181:a4cbdfbbd2f4 | 558 | |
mbed_official | 181:a4cbdfbbd2f4 | 559 | /** @defgroup HAL_COMP_Group4 Peripheral State functions |
mbed_official | 181:a4cbdfbbd2f4 | 560 | * @brief Peripheral State functions |
mbed_official | 181:a4cbdfbbd2f4 | 561 | * |
mbed_official | 181:a4cbdfbbd2f4 | 562 | @verbatim |
mbed_official | 181:a4cbdfbbd2f4 | 563 | =============================================================================== |
mbed_official | 181:a4cbdfbbd2f4 | 564 | ##### Peripheral State functions ##### |
mbed_official | 181:a4cbdfbbd2f4 | 565 | =============================================================================== |
mbed_official | 181:a4cbdfbbd2f4 | 566 | [..] |
mbed_official | 181:a4cbdfbbd2f4 | 567 | This subsection permit to get in run-time the status of the peripheral |
mbed_official | 181:a4cbdfbbd2f4 | 568 | and the data flow. |
mbed_official | 181:a4cbdfbbd2f4 | 569 | |
mbed_official | 181:a4cbdfbbd2f4 | 570 | @endverbatim |
mbed_official | 181:a4cbdfbbd2f4 | 571 | * @{ |
mbed_official | 181:a4cbdfbbd2f4 | 572 | */ |
mbed_official | 181:a4cbdfbbd2f4 | 573 | |
mbed_official | 181:a4cbdfbbd2f4 | 574 | /** |
mbed_official | 181:a4cbdfbbd2f4 | 575 | * @brief Return the COMP state |
mbed_official | 181:a4cbdfbbd2f4 | 576 | * @param hcomp : COMP handle |
mbed_official | 181:a4cbdfbbd2f4 | 577 | * @retval HAL state |
mbed_official | 181:a4cbdfbbd2f4 | 578 | */ |
mbed_official | 181:a4cbdfbbd2f4 | 579 | HAL_COMP_StateTypeDef HAL_COMP_GetState(COMP_HandleTypeDef *hcomp) |
mbed_official | 181:a4cbdfbbd2f4 | 580 | { |
mbed_official | 181:a4cbdfbbd2f4 | 581 | /* Check the COMP handle allocation */ |
mbed_official | 181:a4cbdfbbd2f4 | 582 | if(hcomp == NULL) |
mbed_official | 181:a4cbdfbbd2f4 | 583 | { |
mbed_official | 181:a4cbdfbbd2f4 | 584 | return HAL_COMP_STATE_RESET; |
mbed_official | 181:a4cbdfbbd2f4 | 585 | } |
mbed_official | 181:a4cbdfbbd2f4 | 586 | |
mbed_official | 181:a4cbdfbbd2f4 | 587 | /* Check the parameter */ |
mbed_official | 181:a4cbdfbbd2f4 | 588 | assert_param(IS_COMP_ALL_INSTANCE(hcomp->Instance)); |
mbed_official | 181:a4cbdfbbd2f4 | 589 | |
mbed_official | 181:a4cbdfbbd2f4 | 590 | return hcomp->State; |
mbed_official | 181:a4cbdfbbd2f4 | 591 | } |
mbed_official | 181:a4cbdfbbd2f4 | 592 | /** |
mbed_official | 181:a4cbdfbbd2f4 | 593 | * @} |
mbed_official | 181:a4cbdfbbd2f4 | 594 | */ |
mbed_official | 181:a4cbdfbbd2f4 | 595 | |
mbed_official | 181:a4cbdfbbd2f4 | 596 | /** |
mbed_official | 181:a4cbdfbbd2f4 | 597 | * @} |
mbed_official | 181:a4cbdfbbd2f4 | 598 | */ |
mbed_official | 181:a4cbdfbbd2f4 | 599 | |
mbed_official | 181:a4cbdfbbd2f4 | 600 | #endif /* HAL_COMP_MODULE_ENABLED */ |
mbed_official | 181:a4cbdfbbd2f4 | 601 | /** |
mbed_official | 181:a4cbdfbbd2f4 | 602 | * @} |
mbed_official | 181:a4cbdfbbd2f4 | 603 | */ |
mbed_official | 181:a4cbdfbbd2f4 | 604 | |
mbed_official | 181:a4cbdfbbd2f4 | 605 | /** |
mbed_official | 181:a4cbdfbbd2f4 | 606 | * @} |
mbed_official | 181:a4cbdfbbd2f4 | 607 | */ |
mbed_official | 181:a4cbdfbbd2f4 | 608 | |
mbed_official | 181:a4cbdfbbd2f4 | 609 | /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |