mbed library sources. Supersedes mbed-src.
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targets/TARGET_STM/TARGET_STM32F0/device/stm32f0xx_hal_comp.c@181:96ed750bd169, 2018-01-17 (annotated)
- Committer:
- Anna Bridge
- Date:
- Wed Jan 17 15:23:54 2018 +0000
- Revision:
- 181:96ed750bd169
- Parent:
- 156:95d6b41a828b
mbed-dev libray. Release version 158
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
<> | 144:ef7eb2e8f9f7 | 1 | /** |
<> | 144:ef7eb2e8f9f7 | 2 | ****************************************************************************** |
<> | 144:ef7eb2e8f9f7 | 3 | * @file stm32f0xx_hal_comp.c |
<> | 144:ef7eb2e8f9f7 | 4 | * @author MCD Application Team |
<> | 144:ef7eb2e8f9f7 | 5 | * @brief COMP HAL module driver. |
<> | 144:ef7eb2e8f9f7 | 6 | * This file provides firmware functions to manage the following |
<> | 144:ef7eb2e8f9f7 | 7 | * functionalities of the COMP peripheral: |
<> | 144:ef7eb2e8f9f7 | 8 | * + Initialization/de-initialization functions |
<> | 144:ef7eb2e8f9f7 | 9 | * + I/O operation functions |
<> | 144:ef7eb2e8f9f7 | 10 | * + Peripheral Control functions |
<> | 144:ef7eb2e8f9f7 | 11 | * + Peripheral State functions |
<> | 144:ef7eb2e8f9f7 | 12 | * |
<> | 144:ef7eb2e8f9f7 | 13 | @verbatim |
<> | 144:ef7eb2e8f9f7 | 14 | ================================================================================ |
<> | 144:ef7eb2e8f9f7 | 15 | ##### COMP Peripheral features ##### |
<> | 144:ef7eb2e8f9f7 | 16 | ================================================================================ |
<> | 144:ef7eb2e8f9f7 | 17 | |
<> | 144:ef7eb2e8f9f7 | 18 | [..] |
<> | 144:ef7eb2e8f9f7 | 19 | The STM32F0xx device family integrates up to 2 analog comparators COMP1 and COMP2: |
<> | 144:ef7eb2e8f9f7 | 20 | (+) The non inverting input and inverting input can be set to GPIO pins. |
<> | 144:ef7eb2e8f9f7 | 21 | |
<> | 144:ef7eb2e8f9f7 | 22 | (+) The COMP output is available using HAL_COMP_GetOutputLevel() |
<> | 144:ef7eb2e8f9f7 | 23 | and can be set on GPIO pins. |
<> | 144:ef7eb2e8f9f7 | 24 | |
<> | 144:ef7eb2e8f9f7 | 25 | (+) The COMP output can be redirected to embedded timers (TIM1, TIM2 and TIM3). |
<> | 144:ef7eb2e8f9f7 | 26 | |
<> | 144:ef7eb2e8f9f7 | 27 | (+) The comparators COMP1 and COMP2 can be combined in window mode. |
<> | 144:ef7eb2e8f9f7 | 28 | |
<> | 144:ef7eb2e8f9f7 | 29 | (+) The comparators have interrupt capability with wake-up |
<> | 144:ef7eb2e8f9f7 | 30 | from Sleep and Stop modes (through the EXTI controller): |
<> | 144:ef7eb2e8f9f7 | 31 | (++) COMP1 is internally connected to EXTI Line 21 |
<> | 144:ef7eb2e8f9f7 | 32 | (++) COMP2 is internally connected to EXTI Line 22 |
<> | 144:ef7eb2e8f9f7 | 33 | |
<> | 144:ef7eb2e8f9f7 | 34 | (+) From the corresponding IRQ handler, the right interrupt source can be retrieved with the |
<> | 144:ef7eb2e8f9f7 | 35 | macros __HAL_COMP_COMP1_EXTI_GET_FLAG() and __HAL_COMP_COMP2_EXTI_GET_FLAG(). |
<> | 144:ef7eb2e8f9f7 | 36 | |
<> | 144:ef7eb2e8f9f7 | 37 | |
<> | 144:ef7eb2e8f9f7 | 38 | ##### How to use this driver ##### |
<> | 144:ef7eb2e8f9f7 | 39 | ================================================================================ |
<> | 144:ef7eb2e8f9f7 | 40 | [..] |
<> | 144:ef7eb2e8f9f7 | 41 | This driver provides functions to configure and program the Comparators of STM32F05x, STM32F07x and STM32F09x devices. |
<> | 144:ef7eb2e8f9f7 | 42 | |
<> | 144:ef7eb2e8f9f7 | 43 | To use the comparator, perform the following steps: |
<> | 144:ef7eb2e8f9f7 | 44 | |
<> | 144:ef7eb2e8f9f7 | 45 | (#) Fill in the HAL_COMP_MspInit() to |
<> | 144:ef7eb2e8f9f7 | 46 | (++) Configure the comparator input in analog mode using HAL_GPIO_Init() |
<> | 144:ef7eb2e8f9f7 | 47 | (++) Configure the comparator output in alternate function mode using HAL_GPIO_Init() to map the comparator |
<> | 144:ef7eb2e8f9f7 | 48 | output to the GPIO pin |
<> | 144:ef7eb2e8f9f7 | 49 | (++) If required enable the COMP interrupt by configuring and enabling EXTI line in Interrupt mode and |
<> | 144:ef7eb2e8f9f7 | 50 | selecting the desired sensitivity level using HAL_GPIO_Init() function. After that enable the comparator |
<> | 144:ef7eb2e8f9f7 | 51 | interrupt vector using HAL_NVIC_EnableIRQ() function. |
<> | 144:ef7eb2e8f9f7 | 52 | |
<> | 144:ef7eb2e8f9f7 | 53 | (#) Configure the comparator using HAL_COMP_Init() function: |
<> | 144:ef7eb2e8f9f7 | 54 | (++) Select the inverting input (input minus) |
<> | 144:ef7eb2e8f9f7 | 55 | (++) Select the non inverting input (input plus) |
<> | 144:ef7eb2e8f9f7 | 56 | (++) Select the output polarity |
<> | 144:ef7eb2e8f9f7 | 57 | (++) Select the output redirection |
<> | 144:ef7eb2e8f9f7 | 58 | (++) Select the hysteresis level |
<> | 144:ef7eb2e8f9f7 | 59 | (++) Select the power mode |
<> | 144:ef7eb2e8f9f7 | 60 | (++) Select the event/interrupt mode |
<> | 144:ef7eb2e8f9f7 | 61 | (++) Select the window mode |
<> | 144:ef7eb2e8f9f7 | 62 | |
<> | 144:ef7eb2e8f9f7 | 63 | -@@- HAL_COMP_Init() calls internally __HAL_RCC_SYSCFG_CLK_ENABLE() in order |
<> | 144:ef7eb2e8f9f7 | 64 | to access the comparator(s) registers. |
<> | 144:ef7eb2e8f9f7 | 65 | |
<> | 144:ef7eb2e8f9f7 | 66 | (#) Enable the comparator using HAL_COMP_Start() function or HAL_COMP_Start_IT() function for interrupt mode. |
<> | 144:ef7eb2e8f9f7 | 67 | |
<> | 144:ef7eb2e8f9f7 | 68 | (#) Use HAL_COMP_TriggerCallback() and/or HAL_COMP_GetOutputLevel() functions |
<> | 144:ef7eb2e8f9f7 | 69 | to manage comparator outputs (event/interrupt triggered and output level). |
<> | 144:ef7eb2e8f9f7 | 70 | |
<> | 144:ef7eb2e8f9f7 | 71 | (#) Disable the comparator using HAL_COMP_Stop() or HAL_COMP_Stop_IT() |
<> | 144:ef7eb2e8f9f7 | 72 | function. |
<> | 144:ef7eb2e8f9f7 | 73 | |
<> | 144:ef7eb2e8f9f7 | 74 | (#) De-initialize the comparator using HAL_COMP_DeInit() function. |
<> | 144:ef7eb2e8f9f7 | 75 | |
<> | 144:ef7eb2e8f9f7 | 76 | (#) For safety purposes comparator(s) can be locked using HAL_COMP_Lock() function. |
<> | 144:ef7eb2e8f9f7 | 77 | Only a MCU reset can reset that protection. |
<> | 144:ef7eb2e8f9f7 | 78 | |
<> | 144:ef7eb2e8f9f7 | 79 | @endverbatim |
<> | 144:ef7eb2e8f9f7 | 80 | ****************************************************************************** |
<> | 144:ef7eb2e8f9f7 | 81 | * @attention |
<> | 144:ef7eb2e8f9f7 | 82 | * |
<> | 144:ef7eb2e8f9f7 | 83 | * <h2><center>© COPYRIGHT(c) 2016 STMicroelectronics</center></h2> |
<> | 144:ef7eb2e8f9f7 | 84 | * |
<> | 144:ef7eb2e8f9f7 | 85 | * Redistribution and use in source and binary forms, with or without modification, |
<> | 144:ef7eb2e8f9f7 | 86 | * are permitted provided that the following conditions are met: |
<> | 144:ef7eb2e8f9f7 | 87 | * 1. Redistributions of source code must retain the above copyright notice, |
<> | 144:ef7eb2e8f9f7 | 88 | * this list of conditions and the following disclaimer. |
<> | 144:ef7eb2e8f9f7 | 89 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
<> | 144:ef7eb2e8f9f7 | 90 | * this list of conditions and the following disclaimer in the documentation |
<> | 144:ef7eb2e8f9f7 | 91 | * and/or other materials provided with the distribution. |
<> | 144:ef7eb2e8f9f7 | 92 | * 3. Neither the name of STMicroelectronics nor the names of its contributors |
<> | 144:ef7eb2e8f9f7 | 93 | * may be used to endorse or promote products derived from this software |
<> | 144:ef7eb2e8f9f7 | 94 | * without specific prior written permission. |
<> | 144:ef7eb2e8f9f7 | 95 | * |
<> | 144:ef7eb2e8f9f7 | 96 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
<> | 144:ef7eb2e8f9f7 | 97 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
<> | 144:ef7eb2e8f9f7 | 98 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
<> | 144:ef7eb2e8f9f7 | 99 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
<> | 144:ef7eb2e8f9f7 | 100 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
<> | 144:ef7eb2e8f9f7 | 101 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
<> | 144:ef7eb2e8f9f7 | 102 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
<> | 144:ef7eb2e8f9f7 | 103 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
<> | 144:ef7eb2e8f9f7 | 104 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
<> | 144:ef7eb2e8f9f7 | 105 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
<> | 144:ef7eb2e8f9f7 | 106 | * |
<> | 144:ef7eb2e8f9f7 | 107 | ****************************************************************************** |
<> | 144:ef7eb2e8f9f7 | 108 | */ |
<> | 144:ef7eb2e8f9f7 | 109 | |
<> | 144:ef7eb2e8f9f7 | 110 | /* |
<> | 144:ef7eb2e8f9f7 | 111 | Additional Tables: |
<> | 144:ef7eb2e8f9f7 | 112 | |
<> | 144:ef7eb2e8f9f7 | 113 | Table 1. COMP Inputs for the STM32F05x, STM32F07x and STM32F09x devices |
<> | 144:ef7eb2e8f9f7 | 114 | +--------------------------------------------------+ |
<> | 144:ef7eb2e8f9f7 | 115 | | | | COMP1 | COMP2 | |
<> | 144:ef7eb2e8f9f7 | 116 | |-----------------|----------------|---------------| |
<> | 144:ef7eb2e8f9f7 | 117 | | | 1/4 VREFINT | OK | OK | |
<> | 144:ef7eb2e8f9f7 | 118 | | | 1/2 VREFINT | OK | OK | |
<> | 144:ef7eb2e8f9f7 | 119 | | | 3/4 VREFINT | OK | OK | |
<> | 144:ef7eb2e8f9f7 | 120 | | Inverting Input | VREFINT | OK | OK | |
<> | 144:ef7eb2e8f9f7 | 121 | | | DAC1 OUT (PA4) | OK | OK | |
<> | 144:ef7eb2e8f9f7 | 122 | | | DAC2 OUT (PA5) | OK | OK | |
<> | 144:ef7eb2e8f9f7 | 123 | | | IO1 | PA0 | PA2 | |
<> | 144:ef7eb2e8f9f7 | 124 | |-----------------|----------------|-------|-------| |
<> | 144:ef7eb2e8f9f7 | 125 | | Non Inverting | | PA1 | PA3 | |
<> | 144:ef7eb2e8f9f7 | 126 | | Input | | | | |
<> | 144:ef7eb2e8f9f7 | 127 | +--------------------------------------------------+ |
<> | 144:ef7eb2e8f9f7 | 128 | |
<> | 144:ef7eb2e8f9f7 | 129 | Table 2. COMP Outputs for the STM32F05x, STM32F07x and STM32F09x devices |
<> | 144:ef7eb2e8f9f7 | 130 | +---------------+ |
<> | 144:ef7eb2e8f9f7 | 131 | | COMP1 | COMP2 | |
<> | 144:ef7eb2e8f9f7 | 132 | |-------|-------| |
<> | 144:ef7eb2e8f9f7 | 133 | | PA0 | PA2 | |
<> | 144:ef7eb2e8f9f7 | 134 | | PA6 | PA7 | |
<> | 144:ef7eb2e8f9f7 | 135 | | PA11 | PA12 | |
<> | 144:ef7eb2e8f9f7 | 136 | +---------------+ |
<> | 144:ef7eb2e8f9f7 | 137 | |
<> | 144:ef7eb2e8f9f7 | 138 | Table 3. COMP Outputs redirection to embedded timers for the STM32F05x, STM32F07x and STM32F09x devices |
<> | 144:ef7eb2e8f9f7 | 139 | +---------------------------------+ |
<> | 144:ef7eb2e8f9f7 | 140 | | COMP1 | COMP2 | |
<> | 144:ef7eb2e8f9f7 | 141 | |----------------|----------------| |
<> | 144:ef7eb2e8f9f7 | 142 | | TIM1 BKIN | TIM1 BKIN | |
<> | 144:ef7eb2e8f9f7 | 143 | | | | |
<> | 144:ef7eb2e8f9f7 | 144 | | TIM1 OCREFCLR | TIM1 OCREFCLR | |
<> | 144:ef7eb2e8f9f7 | 145 | | | | |
<> | 144:ef7eb2e8f9f7 | 146 | | TIM1 IC1 | TIM1 IC1 | |
<> | 144:ef7eb2e8f9f7 | 147 | | | | |
<> | 144:ef7eb2e8f9f7 | 148 | | TIM2 IC4 | TIM2 IC4 | |
<> | 144:ef7eb2e8f9f7 | 149 | | | | |
<> | 144:ef7eb2e8f9f7 | 150 | | TIM2 OCREFCLR | TIM2 OCREFCLR | |
<> | 144:ef7eb2e8f9f7 | 151 | | | | |
<> | 144:ef7eb2e8f9f7 | 152 | | TIM3 IC1 | TIM3 IC1 | |
<> | 144:ef7eb2e8f9f7 | 153 | | | | |
<> | 144:ef7eb2e8f9f7 | 154 | | TIM3 OCREFCLR | TIM3 OCREFCLR | |
<> | 144:ef7eb2e8f9f7 | 155 | +---------------------------------+ |
<> | 144:ef7eb2e8f9f7 | 156 | |
<> | 144:ef7eb2e8f9f7 | 157 | */ |
<> | 144:ef7eb2e8f9f7 | 158 | |
<> | 144:ef7eb2e8f9f7 | 159 | /* Includes ------------------------------------------------------------------*/ |
<> | 144:ef7eb2e8f9f7 | 160 | #include "stm32f0xx_hal.h" |
<> | 144:ef7eb2e8f9f7 | 161 | |
<> | 144:ef7eb2e8f9f7 | 162 | #ifdef HAL_COMP_MODULE_ENABLED |
<> | 144:ef7eb2e8f9f7 | 163 | |
<> | 144:ef7eb2e8f9f7 | 164 | #if defined(STM32F051x8) || defined(STM32F058xx) || \ |
<> | 144:ef7eb2e8f9f7 | 165 | defined(STM32F071xB) || defined(STM32F072xB) || defined(STM32F078xx) || \ |
<> | 144:ef7eb2e8f9f7 | 166 | defined(STM32F091xC) || defined (STM32F098xx) |
<> | 144:ef7eb2e8f9f7 | 167 | |
<> | 144:ef7eb2e8f9f7 | 168 | /** @addtogroup STM32F0xx_HAL_Driver |
<> | 144:ef7eb2e8f9f7 | 169 | * @{ |
<> | 144:ef7eb2e8f9f7 | 170 | */ |
<> | 144:ef7eb2e8f9f7 | 171 | |
<> | 144:ef7eb2e8f9f7 | 172 | /** @defgroup COMP COMP |
<> | 144:ef7eb2e8f9f7 | 173 | * @brief COMP HAL module driver |
<> | 144:ef7eb2e8f9f7 | 174 | * @{ |
<> | 144:ef7eb2e8f9f7 | 175 | */ |
<> | 144:ef7eb2e8f9f7 | 176 | |
<> | 144:ef7eb2e8f9f7 | 177 | /* Private typedef -----------------------------------------------------------*/ |
<> | 144:ef7eb2e8f9f7 | 178 | /* Private define ------------------------------------------------------------*/ |
<> | 144:ef7eb2e8f9f7 | 179 | |
<> | 144:ef7eb2e8f9f7 | 180 | /** @defgroup COMP_Private_Constants COMP Private Constants |
<> | 144:ef7eb2e8f9f7 | 181 | * @{ |
<> | 144:ef7eb2e8f9f7 | 182 | */ |
<> | 144:ef7eb2e8f9f7 | 183 | |
<> | 144:ef7eb2e8f9f7 | 184 | /* Delay for COMP startup time. */ |
<> | 144:ef7eb2e8f9f7 | 185 | /* Note: Delay required to reach propagation delay specification. */ |
<> | 144:ef7eb2e8f9f7 | 186 | /* Literal set to maximum value (refer to device datasheet, */ |
<> | 144:ef7eb2e8f9f7 | 187 | /* parameter "tSTART"). */ |
<> | 144:ef7eb2e8f9f7 | 188 | /* Unit: us */ |
Anna Bridge |
181:96ed750bd169 | 189 | #define COMP_DELAY_STARTUP_US (60U) /*!< Delay for COMP startup time */ |
<> | 144:ef7eb2e8f9f7 | 190 | |
<> | 144:ef7eb2e8f9f7 | 191 | /* CSR register reset value */ |
<> | 156:95d6b41a828b | 192 | #define COMP_CSR_RESET_VALUE (0x00000000U) |
<> | 144:ef7eb2e8f9f7 | 193 | /* CSR register masks */ |
<> | 156:95d6b41a828b | 194 | #define COMP_CSR_RESET_PARAMETERS_MASK (0x00003FFFU) |
<> | 156:95d6b41a828b | 195 | #define COMP_CSR_UPDATE_PARAMETERS_MASK (0x00003FFEU) |
<> | 144:ef7eb2e8f9f7 | 196 | /* CSR COMPx non inverting input mask */ |
<> | 144:ef7eb2e8f9f7 | 197 | #define COMP_CSR_COMPxNONINSEL_MASK ((uint16_t)COMP_CSR_COMP1SW1) |
<> | 144:ef7eb2e8f9f7 | 198 | /* CSR COMP2 shift */ |
<> | 144:ef7eb2e8f9f7 | 199 | #define COMP_CSR_COMP1_SHIFT 0U |
<> | 144:ef7eb2e8f9f7 | 200 | #define COMP_CSR_COMP2_SHIFT 16U |
<> | 144:ef7eb2e8f9f7 | 201 | /** |
<> | 144:ef7eb2e8f9f7 | 202 | * @} |
<> | 144:ef7eb2e8f9f7 | 203 | */ |
<> | 144:ef7eb2e8f9f7 | 204 | /* Private macro -------------------------------------------------------------*/ |
<> | 144:ef7eb2e8f9f7 | 205 | /* Private variables ---------------------------------------------------------*/ |
<> | 144:ef7eb2e8f9f7 | 206 | /* Private function prototypes -----------------------------------------------*/ |
<> | 144:ef7eb2e8f9f7 | 207 | /* Private functions ---------------------------------------------------------*/ |
<> | 144:ef7eb2e8f9f7 | 208 | |
<> | 144:ef7eb2e8f9f7 | 209 | /** @defgroup COMP_Exported_Functions COMP Exported Functions |
<> | 144:ef7eb2e8f9f7 | 210 | * @{ |
<> | 144:ef7eb2e8f9f7 | 211 | */ |
<> | 144:ef7eb2e8f9f7 | 212 | |
<> | 144:ef7eb2e8f9f7 | 213 | /** @defgroup COMP_Exported_Functions_Group1 Initialization/de-initialization functions |
<> | 144:ef7eb2e8f9f7 | 214 | * @brief Initialization and Configuration functions |
<> | 144:ef7eb2e8f9f7 | 215 | * |
<> | 144:ef7eb2e8f9f7 | 216 | @verbatim |
<> | 144:ef7eb2e8f9f7 | 217 | =============================================================================== |
<> | 144:ef7eb2e8f9f7 | 218 | ##### Initialization and Configuration functions ##### |
<> | 144:ef7eb2e8f9f7 | 219 | =============================================================================== |
<> | 144:ef7eb2e8f9f7 | 220 | [..] This section provides functions to initialize and de-initialize comparators |
<> | 144:ef7eb2e8f9f7 | 221 | |
<> | 144:ef7eb2e8f9f7 | 222 | @endverbatim |
<> | 144:ef7eb2e8f9f7 | 223 | * @{ |
<> | 144:ef7eb2e8f9f7 | 224 | */ |
<> | 144:ef7eb2e8f9f7 | 225 | |
<> | 144:ef7eb2e8f9f7 | 226 | /** |
<> | 144:ef7eb2e8f9f7 | 227 | * @brief Initializes the COMP according to the specified |
<> | 144:ef7eb2e8f9f7 | 228 | * parameters in the COMP_InitTypeDef and create the associated handle. |
<> | 144:ef7eb2e8f9f7 | 229 | * @note If the selected comparator is locked, initialization can't be performed. |
<> | 144:ef7eb2e8f9f7 | 230 | * To unlock the configuration, perform a system reset. |
Anna Bridge |
181:96ed750bd169 | 231 | * @param hcomp COMP handle |
<> | 144:ef7eb2e8f9f7 | 232 | * @retval HAL status |
<> | 144:ef7eb2e8f9f7 | 233 | */ |
<> | 144:ef7eb2e8f9f7 | 234 | HAL_StatusTypeDef HAL_COMP_Init(COMP_HandleTypeDef *hcomp) |
<> | 144:ef7eb2e8f9f7 | 235 | { |
<> | 144:ef7eb2e8f9f7 | 236 | HAL_StatusTypeDef status = HAL_OK; |
<> | 144:ef7eb2e8f9f7 | 237 | uint32_t regshift = COMP_CSR_COMP1_SHIFT; |
<> | 144:ef7eb2e8f9f7 | 238 | |
<> | 144:ef7eb2e8f9f7 | 239 | /* Check the COMP handle allocation and lock status */ |
<> | 144:ef7eb2e8f9f7 | 240 | if((hcomp == NULL) || ((hcomp->State & COMP_STATE_BIT_LOCK) != RESET)) |
<> | 144:ef7eb2e8f9f7 | 241 | { |
<> | 144:ef7eb2e8f9f7 | 242 | status = HAL_ERROR; |
<> | 144:ef7eb2e8f9f7 | 243 | } |
<> | 144:ef7eb2e8f9f7 | 244 | else |
<> | 144:ef7eb2e8f9f7 | 245 | { |
<> | 144:ef7eb2e8f9f7 | 246 | /* Check the parameter */ |
<> | 144:ef7eb2e8f9f7 | 247 | assert_param(IS_COMP_ALL_INSTANCE(hcomp->Instance)); |
<> | 144:ef7eb2e8f9f7 | 248 | assert_param(IS_COMP_INVERTINGINPUT(hcomp->Init.InvertingInput)); |
<> | 144:ef7eb2e8f9f7 | 249 | assert_param(IS_COMP_NONINVERTINGINPUT(hcomp->Init.NonInvertingInput)); |
<> | 144:ef7eb2e8f9f7 | 250 | assert_param(IS_COMP_OUTPUT(hcomp->Init.Output)); |
<> | 144:ef7eb2e8f9f7 | 251 | assert_param(IS_COMP_OUTPUTPOL(hcomp->Init.OutputPol)); |
<> | 144:ef7eb2e8f9f7 | 252 | assert_param(IS_COMP_HYSTERESIS(hcomp->Init.Hysteresis)); |
<> | 144:ef7eb2e8f9f7 | 253 | assert_param(IS_COMP_MODE(hcomp->Init.Mode)); |
<> | 144:ef7eb2e8f9f7 | 254 | |
<> | 144:ef7eb2e8f9f7 | 255 | if(hcomp->Init.NonInvertingInput == COMP_NONINVERTINGINPUT_DAC1SWITCHCLOSED) |
<> | 144:ef7eb2e8f9f7 | 256 | { |
<> | 144:ef7eb2e8f9f7 | 257 | assert_param(IS_COMP_DAC1SWITCH_INSTANCE(hcomp->Instance)); |
<> | 144:ef7eb2e8f9f7 | 258 | } |
<> | 144:ef7eb2e8f9f7 | 259 | |
<> | 144:ef7eb2e8f9f7 | 260 | if(hcomp->Init.WindowMode != COMP_WINDOWMODE_DISABLE) |
<> | 144:ef7eb2e8f9f7 | 261 | { |
<> | 144:ef7eb2e8f9f7 | 262 | assert_param(IS_COMP_WINDOWMODE_INSTANCE(hcomp->Instance)); |
<> | 144:ef7eb2e8f9f7 | 263 | } |
<> | 144:ef7eb2e8f9f7 | 264 | |
<> | 144:ef7eb2e8f9f7 | 265 | /* Init SYSCFG and the low level hardware to access comparators */ |
<> | 144:ef7eb2e8f9f7 | 266 | __HAL_RCC_SYSCFG_CLK_ENABLE(); |
<> | 144:ef7eb2e8f9f7 | 267 | |
<> | 144:ef7eb2e8f9f7 | 268 | /* Init the low level hardware : SYSCFG to access comparators */ |
<> | 144:ef7eb2e8f9f7 | 269 | HAL_COMP_MspInit(hcomp); |
<> | 144:ef7eb2e8f9f7 | 270 | |
<> | 144:ef7eb2e8f9f7 | 271 | if(hcomp->State == HAL_COMP_STATE_RESET) |
<> | 144:ef7eb2e8f9f7 | 272 | { |
<> | 144:ef7eb2e8f9f7 | 273 | /* Allocate lock resource and initialize it */ |
<> | 144:ef7eb2e8f9f7 | 274 | hcomp->Lock = HAL_UNLOCKED; |
<> | 144:ef7eb2e8f9f7 | 275 | } |
<> | 144:ef7eb2e8f9f7 | 276 | |
<> | 144:ef7eb2e8f9f7 | 277 | /* Change COMP peripheral state */ |
<> | 144:ef7eb2e8f9f7 | 278 | hcomp->State = HAL_COMP_STATE_BUSY; |
<> | 144:ef7eb2e8f9f7 | 279 | |
<> | 144:ef7eb2e8f9f7 | 280 | /* Set COMP parameters */ |
<> | 144:ef7eb2e8f9f7 | 281 | /* Set COMPxINSEL bits according to hcomp->Init.InvertingInput value */ |
<> | 144:ef7eb2e8f9f7 | 282 | /* Set COMPxOUTSEL bits according to hcomp->Init.Output value */ |
<> | 144:ef7eb2e8f9f7 | 283 | /* Set COMPxPOL bit according to hcomp->Init.OutputPol value */ |
<> | 144:ef7eb2e8f9f7 | 284 | /* Set COMPxHYST bits according to hcomp->Init.Hysteresis value */ |
<> | 144:ef7eb2e8f9f7 | 285 | /* Set COMPxMODE bits according to hcomp->Init.Mode value */ |
<> | 144:ef7eb2e8f9f7 | 286 | if(hcomp->Instance == COMP2) |
<> | 144:ef7eb2e8f9f7 | 287 | { |
<> | 144:ef7eb2e8f9f7 | 288 | regshift = COMP_CSR_COMP2_SHIFT; |
<> | 144:ef7eb2e8f9f7 | 289 | } |
<> | 144:ef7eb2e8f9f7 | 290 | MODIFY_REG(COMP->CSR, |
<> | 144:ef7eb2e8f9f7 | 291 | (COMP_CSR_COMPxINSEL | COMP_CSR_COMPxNONINSEL_MASK | \ |
<> | 144:ef7eb2e8f9f7 | 292 | COMP_CSR_COMPxOUTSEL | COMP_CSR_COMPxPOL | \ |
<> | 144:ef7eb2e8f9f7 | 293 | COMP_CSR_COMPxHYST | COMP_CSR_COMPxMODE) << regshift, |
<> | 144:ef7eb2e8f9f7 | 294 | (hcomp->Init.InvertingInput | \ |
<> | 144:ef7eb2e8f9f7 | 295 | hcomp->Init.NonInvertingInput | \ |
<> | 144:ef7eb2e8f9f7 | 296 | hcomp->Init.Output | \ |
<> | 144:ef7eb2e8f9f7 | 297 | hcomp->Init.OutputPol | \ |
<> | 144:ef7eb2e8f9f7 | 298 | hcomp->Init.Hysteresis | \ |
<> | 144:ef7eb2e8f9f7 | 299 | hcomp->Init.Mode) << regshift); |
<> | 144:ef7eb2e8f9f7 | 300 | |
<> | 144:ef7eb2e8f9f7 | 301 | if(hcomp->Init.WindowMode != COMP_WINDOWMODE_DISABLE) |
<> | 144:ef7eb2e8f9f7 | 302 | { |
<> | 144:ef7eb2e8f9f7 | 303 | COMP->CSR |= COMP_CSR_WNDWEN; |
<> | 144:ef7eb2e8f9f7 | 304 | } |
<> | 144:ef7eb2e8f9f7 | 305 | |
<> | 144:ef7eb2e8f9f7 | 306 | /* Initialize the COMP state*/ |
<> | 144:ef7eb2e8f9f7 | 307 | hcomp->State = HAL_COMP_STATE_READY; |
<> | 144:ef7eb2e8f9f7 | 308 | } |
<> | 144:ef7eb2e8f9f7 | 309 | |
<> | 144:ef7eb2e8f9f7 | 310 | return status; |
<> | 144:ef7eb2e8f9f7 | 311 | } |
<> | 144:ef7eb2e8f9f7 | 312 | |
<> | 144:ef7eb2e8f9f7 | 313 | /** |
<> | 144:ef7eb2e8f9f7 | 314 | * @brief DeInitializes the COMP peripheral |
<> | 144:ef7eb2e8f9f7 | 315 | * @note Deinitialization can't be performed if the COMP configuration is locked. |
<> | 144:ef7eb2e8f9f7 | 316 | * To unlock the configuration, perform a system reset. |
Anna Bridge |
181:96ed750bd169 | 317 | * @param hcomp COMP handle |
<> | 144:ef7eb2e8f9f7 | 318 | * @retval HAL status |
<> | 144:ef7eb2e8f9f7 | 319 | */ |
<> | 144:ef7eb2e8f9f7 | 320 | HAL_StatusTypeDef HAL_COMP_DeInit(COMP_HandleTypeDef *hcomp) |
<> | 144:ef7eb2e8f9f7 | 321 | { |
<> | 144:ef7eb2e8f9f7 | 322 | HAL_StatusTypeDef status = HAL_OK; |
<> | 144:ef7eb2e8f9f7 | 323 | uint32_t regshift = COMP_CSR_COMP1_SHIFT; |
<> | 144:ef7eb2e8f9f7 | 324 | |
<> | 144:ef7eb2e8f9f7 | 325 | /* Check the COMP handle allocation and lock status */ |
<> | 144:ef7eb2e8f9f7 | 326 | if((hcomp == NULL) || ((hcomp->State & COMP_STATE_BIT_LOCK) != RESET)) |
<> | 144:ef7eb2e8f9f7 | 327 | { |
<> | 144:ef7eb2e8f9f7 | 328 | status = HAL_ERROR; |
<> | 144:ef7eb2e8f9f7 | 329 | } |
<> | 144:ef7eb2e8f9f7 | 330 | else |
<> | 144:ef7eb2e8f9f7 | 331 | { |
<> | 144:ef7eb2e8f9f7 | 332 | /* Check the parameter */ |
<> | 144:ef7eb2e8f9f7 | 333 | assert_param(IS_COMP_ALL_INSTANCE(hcomp->Instance)); |
<> | 144:ef7eb2e8f9f7 | 334 | |
<> | 144:ef7eb2e8f9f7 | 335 | /* Set COMP_CSR register to reset value for the corresponding COMP instance */ |
<> | 144:ef7eb2e8f9f7 | 336 | if(hcomp->Instance == COMP2) |
<> | 144:ef7eb2e8f9f7 | 337 | { |
<> | 144:ef7eb2e8f9f7 | 338 | regshift = COMP_CSR_COMP2_SHIFT; |
<> | 144:ef7eb2e8f9f7 | 339 | } |
<> | 144:ef7eb2e8f9f7 | 340 | MODIFY_REG(COMP->CSR, |
<> | 144:ef7eb2e8f9f7 | 341 | COMP_CSR_RESET_PARAMETERS_MASK << regshift, |
<> | 144:ef7eb2e8f9f7 | 342 | COMP_CSR_RESET_VALUE << regshift); |
<> | 144:ef7eb2e8f9f7 | 343 | |
<> | 144:ef7eb2e8f9f7 | 344 | /* DeInit the low level hardware: SYSCFG, GPIO, CLOCK and NVIC */ |
<> | 144:ef7eb2e8f9f7 | 345 | HAL_COMP_MspDeInit(hcomp); |
<> | 144:ef7eb2e8f9f7 | 346 | |
<> | 144:ef7eb2e8f9f7 | 347 | hcomp->State = HAL_COMP_STATE_RESET; |
<> | 144:ef7eb2e8f9f7 | 348 | |
<> | 144:ef7eb2e8f9f7 | 349 | /* Release Lock */ |
<> | 144:ef7eb2e8f9f7 | 350 | __HAL_UNLOCK(hcomp); |
<> | 144:ef7eb2e8f9f7 | 351 | } |
<> | 144:ef7eb2e8f9f7 | 352 | |
<> | 144:ef7eb2e8f9f7 | 353 | return status; |
<> | 144:ef7eb2e8f9f7 | 354 | } |
<> | 144:ef7eb2e8f9f7 | 355 | |
<> | 144:ef7eb2e8f9f7 | 356 | /** |
<> | 144:ef7eb2e8f9f7 | 357 | * @brief Initializes the COMP MSP. |
Anna Bridge |
181:96ed750bd169 | 358 | * @param hcomp COMP handle |
<> | 144:ef7eb2e8f9f7 | 359 | * @retval None |
<> | 144:ef7eb2e8f9f7 | 360 | */ |
<> | 144:ef7eb2e8f9f7 | 361 | __weak void HAL_COMP_MspInit(COMP_HandleTypeDef *hcomp) |
<> | 144:ef7eb2e8f9f7 | 362 | { |
<> | 144:ef7eb2e8f9f7 | 363 | /* Prevent unused argument(s) compilation warning */ |
<> | 144:ef7eb2e8f9f7 | 364 | UNUSED(hcomp); |
<> | 144:ef7eb2e8f9f7 | 365 | |
<> | 144:ef7eb2e8f9f7 | 366 | /* NOTE : This function Should not be modified, when the callback is needed, |
<> | 144:ef7eb2e8f9f7 | 367 | the HAL_COMP_MspInit could be implenetd in the user file |
<> | 144:ef7eb2e8f9f7 | 368 | */ |
<> | 144:ef7eb2e8f9f7 | 369 | } |
<> | 144:ef7eb2e8f9f7 | 370 | |
<> | 144:ef7eb2e8f9f7 | 371 | /** |
<> | 144:ef7eb2e8f9f7 | 372 | * @brief DeInitializes COMP MSP. |
Anna Bridge |
181:96ed750bd169 | 373 | * @param hcomp COMP handle |
<> | 144:ef7eb2e8f9f7 | 374 | * @retval None |
<> | 144:ef7eb2e8f9f7 | 375 | */ |
<> | 144:ef7eb2e8f9f7 | 376 | __weak void HAL_COMP_MspDeInit(COMP_HandleTypeDef *hcomp) |
<> | 144:ef7eb2e8f9f7 | 377 | { |
<> | 144:ef7eb2e8f9f7 | 378 | /* Prevent unused argument(s) compilation warning */ |
<> | 144:ef7eb2e8f9f7 | 379 | UNUSED(hcomp); |
<> | 144:ef7eb2e8f9f7 | 380 | |
<> | 144:ef7eb2e8f9f7 | 381 | /* NOTE : This function Should not be modified, when the callback is needed, |
<> | 144:ef7eb2e8f9f7 | 382 | the HAL_COMP_MspDeInit could be implenetd in the user file |
<> | 144:ef7eb2e8f9f7 | 383 | */ |
<> | 144:ef7eb2e8f9f7 | 384 | } |
<> | 144:ef7eb2e8f9f7 | 385 | |
<> | 144:ef7eb2e8f9f7 | 386 | /** |
<> | 144:ef7eb2e8f9f7 | 387 | * @} |
<> | 144:ef7eb2e8f9f7 | 388 | */ |
<> | 144:ef7eb2e8f9f7 | 389 | |
<> | 144:ef7eb2e8f9f7 | 390 | /** @defgroup COMP_Exported_Functions_Group2 I/O operation functions |
<> | 144:ef7eb2e8f9f7 | 391 | * @brief Data transfers functions |
<> | 144:ef7eb2e8f9f7 | 392 | * |
<> | 144:ef7eb2e8f9f7 | 393 | @verbatim |
<> | 144:ef7eb2e8f9f7 | 394 | =============================================================================== |
<> | 144:ef7eb2e8f9f7 | 395 | ##### IO operation functions ##### |
<> | 144:ef7eb2e8f9f7 | 396 | =============================================================================== |
<> | 144:ef7eb2e8f9f7 | 397 | [..] |
<> | 144:ef7eb2e8f9f7 | 398 | This subsection provides a set of functions allowing to manage the COMP data |
<> | 144:ef7eb2e8f9f7 | 399 | transfers. |
<> | 144:ef7eb2e8f9f7 | 400 | |
<> | 144:ef7eb2e8f9f7 | 401 | @endverbatim |
<> | 144:ef7eb2e8f9f7 | 402 | * @{ |
<> | 144:ef7eb2e8f9f7 | 403 | */ |
<> | 144:ef7eb2e8f9f7 | 404 | |
<> | 144:ef7eb2e8f9f7 | 405 | /** |
<> | 144:ef7eb2e8f9f7 | 406 | * @brief Start the comparator |
Anna Bridge |
181:96ed750bd169 | 407 | * @param hcomp COMP handle |
<> | 144:ef7eb2e8f9f7 | 408 | * @retval HAL status |
<> | 144:ef7eb2e8f9f7 | 409 | */ |
<> | 144:ef7eb2e8f9f7 | 410 | HAL_StatusTypeDef HAL_COMP_Start(COMP_HandleTypeDef *hcomp) |
<> | 144:ef7eb2e8f9f7 | 411 | { |
<> | 156:95d6b41a828b | 412 | uint32_t wait_loop_index = 0U; |
<> | 144:ef7eb2e8f9f7 | 413 | HAL_StatusTypeDef status = HAL_OK; |
<> | 144:ef7eb2e8f9f7 | 414 | uint32_t regshift = COMP_CSR_COMP1_SHIFT; |
<> | 144:ef7eb2e8f9f7 | 415 | |
<> | 144:ef7eb2e8f9f7 | 416 | /* Check the COMP handle allocation and lock status */ |
<> | 144:ef7eb2e8f9f7 | 417 | if((hcomp == NULL) || ((hcomp->State & COMP_STATE_BIT_LOCK) != RESET)) |
<> | 144:ef7eb2e8f9f7 | 418 | { |
<> | 144:ef7eb2e8f9f7 | 419 | status = HAL_ERROR; |
<> | 144:ef7eb2e8f9f7 | 420 | } |
<> | 144:ef7eb2e8f9f7 | 421 | else |
<> | 144:ef7eb2e8f9f7 | 422 | { |
<> | 144:ef7eb2e8f9f7 | 423 | /* Check the parameter */ |
<> | 144:ef7eb2e8f9f7 | 424 | assert_param(IS_COMP_ALL_INSTANCE(hcomp->Instance)); |
<> | 144:ef7eb2e8f9f7 | 425 | |
<> | 144:ef7eb2e8f9f7 | 426 | if(hcomp->State == HAL_COMP_STATE_READY) |
<> | 144:ef7eb2e8f9f7 | 427 | { |
<> | 144:ef7eb2e8f9f7 | 428 | /* Enable the selected comparator */ |
<> | 144:ef7eb2e8f9f7 | 429 | if(hcomp->Instance == COMP2) |
<> | 144:ef7eb2e8f9f7 | 430 | { |
<> | 144:ef7eb2e8f9f7 | 431 | regshift = COMP_CSR_COMP2_SHIFT; |
<> | 144:ef7eb2e8f9f7 | 432 | } |
<> | 144:ef7eb2e8f9f7 | 433 | SET_BIT(COMP->CSR, COMP_CSR_COMPxEN << regshift); |
<> | 144:ef7eb2e8f9f7 | 434 | |
<> | 144:ef7eb2e8f9f7 | 435 | /* Set HAL COMP handle state */ |
<> | 144:ef7eb2e8f9f7 | 436 | hcomp->State = HAL_COMP_STATE_BUSY; |
<> | 144:ef7eb2e8f9f7 | 437 | |
<> | 144:ef7eb2e8f9f7 | 438 | /* Delay for COMP startup time */ |
Anna Bridge |
181:96ed750bd169 | 439 | wait_loop_index = (COMP_DELAY_STARTUP_US * (SystemCoreClock / 1000000U)); |
<> | 156:95d6b41a828b | 440 | while(wait_loop_index != 0U) |
<> | 144:ef7eb2e8f9f7 | 441 | { |
<> | 144:ef7eb2e8f9f7 | 442 | wait_loop_index--; |
<> | 144:ef7eb2e8f9f7 | 443 | } |
<> | 144:ef7eb2e8f9f7 | 444 | } |
<> | 144:ef7eb2e8f9f7 | 445 | else |
<> | 144:ef7eb2e8f9f7 | 446 | { |
<> | 144:ef7eb2e8f9f7 | 447 | status = HAL_ERROR; |
<> | 144:ef7eb2e8f9f7 | 448 | } |
<> | 144:ef7eb2e8f9f7 | 449 | } |
<> | 144:ef7eb2e8f9f7 | 450 | |
<> | 144:ef7eb2e8f9f7 | 451 | return status; |
<> | 144:ef7eb2e8f9f7 | 452 | } |
<> | 144:ef7eb2e8f9f7 | 453 | |
<> | 144:ef7eb2e8f9f7 | 454 | /** |
<> | 144:ef7eb2e8f9f7 | 455 | * @brief Stop the comparator |
Anna Bridge |
181:96ed750bd169 | 456 | * @param hcomp COMP handle |
<> | 144:ef7eb2e8f9f7 | 457 | * @retval HAL status |
<> | 144:ef7eb2e8f9f7 | 458 | */ |
<> | 144:ef7eb2e8f9f7 | 459 | HAL_StatusTypeDef HAL_COMP_Stop(COMP_HandleTypeDef *hcomp) |
<> | 144:ef7eb2e8f9f7 | 460 | { |
<> | 144:ef7eb2e8f9f7 | 461 | HAL_StatusTypeDef status = HAL_OK; |
<> | 144:ef7eb2e8f9f7 | 462 | uint32_t regshift = COMP_CSR_COMP1_SHIFT; |
<> | 144:ef7eb2e8f9f7 | 463 | |
<> | 144:ef7eb2e8f9f7 | 464 | /* Check the COMP handle allocation and lock status */ |
<> | 144:ef7eb2e8f9f7 | 465 | if((hcomp == NULL) || ((hcomp->State & COMP_STATE_BIT_LOCK) != RESET)) |
<> | 144:ef7eb2e8f9f7 | 466 | { |
<> | 144:ef7eb2e8f9f7 | 467 | status = HAL_ERROR; |
<> | 144:ef7eb2e8f9f7 | 468 | } |
<> | 144:ef7eb2e8f9f7 | 469 | else |
<> | 144:ef7eb2e8f9f7 | 470 | { |
<> | 144:ef7eb2e8f9f7 | 471 | /* Check the parameter */ |
<> | 144:ef7eb2e8f9f7 | 472 | assert_param(IS_COMP_ALL_INSTANCE(hcomp->Instance)); |
<> | 144:ef7eb2e8f9f7 | 473 | |
<> | 144:ef7eb2e8f9f7 | 474 | if(hcomp->State == HAL_COMP_STATE_BUSY) |
<> | 144:ef7eb2e8f9f7 | 475 | { |
<> | 144:ef7eb2e8f9f7 | 476 | /* Disable the selected comparator */ |
<> | 144:ef7eb2e8f9f7 | 477 | if(hcomp->Instance == COMP2) |
<> | 144:ef7eb2e8f9f7 | 478 | { |
<> | 144:ef7eb2e8f9f7 | 479 | regshift = COMP_CSR_COMP2_SHIFT; |
<> | 144:ef7eb2e8f9f7 | 480 | } |
<> | 144:ef7eb2e8f9f7 | 481 | CLEAR_BIT(COMP->CSR, COMP_CSR_COMPxEN << regshift); |
<> | 144:ef7eb2e8f9f7 | 482 | |
<> | 144:ef7eb2e8f9f7 | 483 | hcomp->State = HAL_COMP_STATE_READY; |
<> | 144:ef7eb2e8f9f7 | 484 | } |
<> | 144:ef7eb2e8f9f7 | 485 | else |
<> | 144:ef7eb2e8f9f7 | 486 | { |
<> | 144:ef7eb2e8f9f7 | 487 | status = HAL_ERROR; |
<> | 144:ef7eb2e8f9f7 | 488 | } |
<> | 144:ef7eb2e8f9f7 | 489 | } |
<> | 144:ef7eb2e8f9f7 | 490 | |
<> | 144:ef7eb2e8f9f7 | 491 | return status; |
<> | 144:ef7eb2e8f9f7 | 492 | } |
<> | 144:ef7eb2e8f9f7 | 493 | |
<> | 144:ef7eb2e8f9f7 | 494 | /** |
<> | 144:ef7eb2e8f9f7 | 495 | * @brief Enables the interrupt and starts the comparator |
Anna Bridge |
181:96ed750bd169 | 496 | * @param hcomp COMP handle |
<> | 144:ef7eb2e8f9f7 | 497 | * @retval HAL status. |
<> | 144:ef7eb2e8f9f7 | 498 | */ |
<> | 144:ef7eb2e8f9f7 | 499 | HAL_StatusTypeDef HAL_COMP_Start_IT(COMP_HandleTypeDef *hcomp) |
<> | 144:ef7eb2e8f9f7 | 500 | { |
<> | 144:ef7eb2e8f9f7 | 501 | HAL_StatusTypeDef status = HAL_OK; |
<> | 156:95d6b41a828b | 502 | uint32_t extiline = 0U; |
<> | 144:ef7eb2e8f9f7 | 503 | |
<> | 144:ef7eb2e8f9f7 | 504 | /* Check the parameter */ |
<> | 144:ef7eb2e8f9f7 | 505 | assert_param(IS_COMP_TRIGGERMODE(hcomp->Init.TriggerMode)); |
<> | 144:ef7eb2e8f9f7 | 506 | |
<> | 144:ef7eb2e8f9f7 | 507 | status = HAL_COMP_Start(hcomp); |
<> | 144:ef7eb2e8f9f7 | 508 | if(status == HAL_OK) |
<> | 144:ef7eb2e8f9f7 | 509 | { |
<> | 144:ef7eb2e8f9f7 | 510 | /* Check the Exti Line output configuration */ |
<> | 144:ef7eb2e8f9f7 | 511 | extiline = COMP_GET_EXTI_LINE(hcomp->Instance); |
<> | 144:ef7eb2e8f9f7 | 512 | /* Configure the rising edge */ |
<> | 144:ef7eb2e8f9f7 | 513 | if((hcomp->Init.TriggerMode & COMP_TRIGGERMODE_IT_RISING) != RESET) |
<> | 144:ef7eb2e8f9f7 | 514 | { |
<> | 144:ef7eb2e8f9f7 | 515 | SET_BIT(EXTI->RTSR, extiline); |
<> | 144:ef7eb2e8f9f7 | 516 | } |
<> | 144:ef7eb2e8f9f7 | 517 | else |
<> | 144:ef7eb2e8f9f7 | 518 | { |
<> | 144:ef7eb2e8f9f7 | 519 | CLEAR_BIT(EXTI->RTSR, extiline); |
<> | 144:ef7eb2e8f9f7 | 520 | } |
<> | 144:ef7eb2e8f9f7 | 521 | /* Configure the falling edge */ |
<> | 144:ef7eb2e8f9f7 | 522 | if((hcomp->Init.TriggerMode & COMP_TRIGGERMODE_IT_FALLING) != RESET) |
<> | 144:ef7eb2e8f9f7 | 523 | { |
<> | 144:ef7eb2e8f9f7 | 524 | SET_BIT(EXTI->FTSR, extiline); |
<> | 144:ef7eb2e8f9f7 | 525 | } |
<> | 144:ef7eb2e8f9f7 | 526 | else |
<> | 144:ef7eb2e8f9f7 | 527 | { |
<> | 144:ef7eb2e8f9f7 | 528 | CLEAR_BIT(EXTI->FTSR, extiline); |
<> | 144:ef7eb2e8f9f7 | 529 | } |
<> | 144:ef7eb2e8f9f7 | 530 | |
<> | 144:ef7eb2e8f9f7 | 531 | /* Clear COMP EXTI pending bit */ |
<> | 144:ef7eb2e8f9f7 | 532 | WRITE_REG(EXTI->PR, extiline); |
<> | 144:ef7eb2e8f9f7 | 533 | |
<> | 144:ef7eb2e8f9f7 | 534 | /* Enable Exti interrupt mode */ |
<> | 144:ef7eb2e8f9f7 | 535 | SET_BIT(EXTI->IMR, extiline); |
<> | 144:ef7eb2e8f9f7 | 536 | } |
<> | 144:ef7eb2e8f9f7 | 537 | |
<> | 144:ef7eb2e8f9f7 | 538 | return status; |
<> | 144:ef7eb2e8f9f7 | 539 | } |
<> | 144:ef7eb2e8f9f7 | 540 | |
<> | 144:ef7eb2e8f9f7 | 541 | /** |
<> | 144:ef7eb2e8f9f7 | 542 | * @brief Disable the interrupt and Stop the comparator |
Anna Bridge |
181:96ed750bd169 | 543 | * @param hcomp COMP handle |
<> | 144:ef7eb2e8f9f7 | 544 | * @retval HAL status |
<> | 144:ef7eb2e8f9f7 | 545 | */ |
<> | 144:ef7eb2e8f9f7 | 546 | HAL_StatusTypeDef HAL_COMP_Stop_IT(COMP_HandleTypeDef *hcomp) |
<> | 144:ef7eb2e8f9f7 | 547 | { |
<> | 144:ef7eb2e8f9f7 | 548 | HAL_StatusTypeDef status = HAL_OK; |
<> | 144:ef7eb2e8f9f7 | 549 | |
<> | 144:ef7eb2e8f9f7 | 550 | /* Disable the Exti Line interrupt mode */ |
<> | 144:ef7eb2e8f9f7 | 551 | CLEAR_BIT(EXTI->IMR, COMP_GET_EXTI_LINE(hcomp->Instance)); |
<> | 144:ef7eb2e8f9f7 | 552 | |
<> | 144:ef7eb2e8f9f7 | 553 | status = HAL_COMP_Stop(hcomp); |
<> | 144:ef7eb2e8f9f7 | 554 | |
<> | 144:ef7eb2e8f9f7 | 555 | return status; |
<> | 144:ef7eb2e8f9f7 | 556 | } |
<> | 144:ef7eb2e8f9f7 | 557 | |
<> | 144:ef7eb2e8f9f7 | 558 | /** |
<> | 144:ef7eb2e8f9f7 | 559 | * @brief Comparator IRQ Handler |
Anna Bridge |
181:96ed750bd169 | 560 | * @param hcomp COMP handle |
<> | 144:ef7eb2e8f9f7 | 561 | * @retval HAL status |
<> | 144:ef7eb2e8f9f7 | 562 | */ |
<> | 144:ef7eb2e8f9f7 | 563 | void HAL_COMP_IRQHandler(COMP_HandleTypeDef *hcomp) |
<> | 144:ef7eb2e8f9f7 | 564 | { |
<> | 144:ef7eb2e8f9f7 | 565 | uint32_t extiline = COMP_GET_EXTI_LINE(hcomp->Instance); |
<> | 144:ef7eb2e8f9f7 | 566 | |
<> | 144:ef7eb2e8f9f7 | 567 | /* Check COMP Exti flag */ |
<> | 144:ef7eb2e8f9f7 | 568 | if(READ_BIT(EXTI->PR, extiline) != RESET) |
<> | 144:ef7eb2e8f9f7 | 569 | { |
<> | 144:ef7eb2e8f9f7 | 570 | /* Clear COMP Exti pending bit */ |
<> | 144:ef7eb2e8f9f7 | 571 | WRITE_REG(EXTI->PR, extiline); |
<> | 144:ef7eb2e8f9f7 | 572 | |
<> | 144:ef7eb2e8f9f7 | 573 | /* COMP trigger user callback */ |
<> | 144:ef7eb2e8f9f7 | 574 | HAL_COMP_TriggerCallback(hcomp); |
<> | 144:ef7eb2e8f9f7 | 575 | } |
<> | 144:ef7eb2e8f9f7 | 576 | } |
<> | 144:ef7eb2e8f9f7 | 577 | |
<> | 144:ef7eb2e8f9f7 | 578 | /** |
<> | 144:ef7eb2e8f9f7 | 579 | * @} |
<> | 144:ef7eb2e8f9f7 | 580 | */ |
<> | 144:ef7eb2e8f9f7 | 581 | |
<> | 144:ef7eb2e8f9f7 | 582 | /** @defgroup COMP_Exported_Functions_Group3 Peripheral Control functions |
<> | 144:ef7eb2e8f9f7 | 583 | * @brief management functions |
<> | 144:ef7eb2e8f9f7 | 584 | * |
<> | 144:ef7eb2e8f9f7 | 585 | @verbatim |
<> | 144:ef7eb2e8f9f7 | 586 | =============================================================================== |
<> | 144:ef7eb2e8f9f7 | 587 | ##### Peripheral Control functions ##### |
<> | 144:ef7eb2e8f9f7 | 588 | =============================================================================== |
<> | 144:ef7eb2e8f9f7 | 589 | [..] |
<> | 144:ef7eb2e8f9f7 | 590 | This subsection provides a set of functions allowing to control the COMP data |
<> | 144:ef7eb2e8f9f7 | 591 | transfers. |
<> | 144:ef7eb2e8f9f7 | 592 | |
<> | 144:ef7eb2e8f9f7 | 593 | @endverbatim |
<> | 144:ef7eb2e8f9f7 | 594 | * @{ |
<> | 144:ef7eb2e8f9f7 | 595 | */ |
<> | 144:ef7eb2e8f9f7 | 596 | |
<> | 144:ef7eb2e8f9f7 | 597 | /** |
<> | 144:ef7eb2e8f9f7 | 598 | * @brief Lock the selected comparator configuration. |
Anna Bridge |
181:96ed750bd169 | 599 | * @param hcomp COMP handle |
<> | 144:ef7eb2e8f9f7 | 600 | * @retval HAL status |
<> | 144:ef7eb2e8f9f7 | 601 | */ |
<> | 144:ef7eb2e8f9f7 | 602 | HAL_StatusTypeDef HAL_COMP_Lock(COMP_HandleTypeDef *hcomp) |
<> | 144:ef7eb2e8f9f7 | 603 | { |
<> | 144:ef7eb2e8f9f7 | 604 | HAL_StatusTypeDef status = HAL_OK; |
<> | 144:ef7eb2e8f9f7 | 605 | uint32_t regshift = COMP_CSR_COMP1_SHIFT; |
<> | 144:ef7eb2e8f9f7 | 606 | |
<> | 144:ef7eb2e8f9f7 | 607 | /* Check the COMP handle allocation and lock status */ |
<> | 144:ef7eb2e8f9f7 | 608 | if((hcomp == NULL) || ((hcomp->State & COMP_STATE_BIT_LOCK) != RESET)) |
<> | 144:ef7eb2e8f9f7 | 609 | { |
<> | 144:ef7eb2e8f9f7 | 610 | status = HAL_ERROR; |
<> | 144:ef7eb2e8f9f7 | 611 | } |
<> | 144:ef7eb2e8f9f7 | 612 | else |
<> | 144:ef7eb2e8f9f7 | 613 | { |
<> | 144:ef7eb2e8f9f7 | 614 | /* Check the parameter */ |
<> | 144:ef7eb2e8f9f7 | 615 | assert_param(IS_COMP_ALL_INSTANCE(hcomp->Instance)); |
<> | 144:ef7eb2e8f9f7 | 616 | |
<> | 144:ef7eb2e8f9f7 | 617 | /* Set lock flag */ |
<> | 144:ef7eb2e8f9f7 | 618 | hcomp->State |= COMP_STATE_BIT_LOCK; |
<> | 144:ef7eb2e8f9f7 | 619 | |
<> | 144:ef7eb2e8f9f7 | 620 | /* Set the lock bit corresponding to selected comparator */ |
<> | 144:ef7eb2e8f9f7 | 621 | if(hcomp->Instance == COMP2) |
<> | 144:ef7eb2e8f9f7 | 622 | { |
<> | 144:ef7eb2e8f9f7 | 623 | regshift = COMP_CSR_COMP2_SHIFT; |
<> | 144:ef7eb2e8f9f7 | 624 | } |
<> | 144:ef7eb2e8f9f7 | 625 | SET_BIT(COMP->CSR, COMP_CSR_COMPxLOCK << regshift); |
<> | 144:ef7eb2e8f9f7 | 626 | } |
<> | 144:ef7eb2e8f9f7 | 627 | |
<> | 144:ef7eb2e8f9f7 | 628 | return status; |
<> | 144:ef7eb2e8f9f7 | 629 | } |
<> | 144:ef7eb2e8f9f7 | 630 | |
<> | 144:ef7eb2e8f9f7 | 631 | /** |
<> | 144:ef7eb2e8f9f7 | 632 | * @brief Return the output level (high or low) of the selected comparator. |
<> | 144:ef7eb2e8f9f7 | 633 | * The output level depends on the selected polarity. |
<> | 144:ef7eb2e8f9f7 | 634 | * If the polarity is not inverted: |
<> | 144:ef7eb2e8f9f7 | 635 | * - Comparator output is low when the non-inverting input is at a lower |
<> | 144:ef7eb2e8f9f7 | 636 | * voltage than the inverting input |
<> | 144:ef7eb2e8f9f7 | 637 | * - Comparator output is high when the non-inverting input is at a higher |
<> | 144:ef7eb2e8f9f7 | 638 | * voltage than the inverting input |
<> | 144:ef7eb2e8f9f7 | 639 | * If the polarity is inverted: |
<> | 144:ef7eb2e8f9f7 | 640 | * - Comparator output is high when the non-inverting input is at a lower |
<> | 144:ef7eb2e8f9f7 | 641 | * voltage than the inverting input |
<> | 144:ef7eb2e8f9f7 | 642 | * - Comparator output is low when the non-inverting input is at a higher |
<> | 144:ef7eb2e8f9f7 | 643 | * voltage than the inverting input |
Anna Bridge |
181:96ed750bd169 | 644 | * @param hcomp COMP handle |
<> | 144:ef7eb2e8f9f7 | 645 | * @retval Returns the selected comparator output level: COMP_OUTPUTLEVEL_LOW or COMP_OUTPUTLEVEL_HIGH. |
<> | 144:ef7eb2e8f9f7 | 646 | * |
<> | 144:ef7eb2e8f9f7 | 647 | */ |
<> | 144:ef7eb2e8f9f7 | 648 | uint32_t HAL_COMP_GetOutputLevel(COMP_HandleTypeDef *hcomp) |
<> | 144:ef7eb2e8f9f7 | 649 | { |
<> | 144:ef7eb2e8f9f7 | 650 | uint32_t level=0; |
<> | 144:ef7eb2e8f9f7 | 651 | uint32_t regshift = COMP_CSR_COMP1_SHIFT; |
<> | 144:ef7eb2e8f9f7 | 652 | |
<> | 144:ef7eb2e8f9f7 | 653 | /* Check the parameter */ |
<> | 144:ef7eb2e8f9f7 | 654 | assert_param(IS_COMP_ALL_INSTANCE(hcomp->Instance)); |
<> | 144:ef7eb2e8f9f7 | 655 | |
<> | 144:ef7eb2e8f9f7 | 656 | if(hcomp->Instance == COMP2) |
<> | 144:ef7eb2e8f9f7 | 657 | { |
<> | 144:ef7eb2e8f9f7 | 658 | regshift = COMP_CSR_COMP2_SHIFT; |
<> | 144:ef7eb2e8f9f7 | 659 | } |
<> | 144:ef7eb2e8f9f7 | 660 | level = READ_BIT(COMP->CSR, COMP_CSR_COMPxOUT << regshift); |
<> | 144:ef7eb2e8f9f7 | 661 | |
<> | 156:95d6b41a828b | 662 | if(level != 0U) |
<> | 144:ef7eb2e8f9f7 | 663 | { |
<> | 144:ef7eb2e8f9f7 | 664 | return(COMP_OUTPUTLEVEL_HIGH); |
<> | 144:ef7eb2e8f9f7 | 665 | } |
<> | 144:ef7eb2e8f9f7 | 666 | return(COMP_OUTPUTLEVEL_LOW); |
<> | 144:ef7eb2e8f9f7 | 667 | } |
<> | 144:ef7eb2e8f9f7 | 668 | |
<> | 144:ef7eb2e8f9f7 | 669 | /** |
<> | 144:ef7eb2e8f9f7 | 670 | * @brief Comparator callback. |
Anna Bridge |
181:96ed750bd169 | 671 | * @param hcomp COMP handle |
<> | 144:ef7eb2e8f9f7 | 672 | * @retval None |
<> | 144:ef7eb2e8f9f7 | 673 | */ |
<> | 144:ef7eb2e8f9f7 | 674 | __weak void HAL_COMP_TriggerCallback(COMP_HandleTypeDef *hcomp) |
<> | 144:ef7eb2e8f9f7 | 675 | { |
<> | 144:ef7eb2e8f9f7 | 676 | /* Prevent unused argument(s) compilation warning */ |
<> | 144:ef7eb2e8f9f7 | 677 | UNUSED(hcomp); |
<> | 144:ef7eb2e8f9f7 | 678 | |
<> | 144:ef7eb2e8f9f7 | 679 | /* NOTE : This function should not be modified, when the callback is needed, |
<> | 144:ef7eb2e8f9f7 | 680 | the HAL_COMP_TriggerCallback should be implemented in the user file |
<> | 144:ef7eb2e8f9f7 | 681 | */ |
<> | 144:ef7eb2e8f9f7 | 682 | } |
<> | 144:ef7eb2e8f9f7 | 683 | |
<> | 144:ef7eb2e8f9f7 | 684 | |
<> | 144:ef7eb2e8f9f7 | 685 | /** |
<> | 144:ef7eb2e8f9f7 | 686 | * @} |
<> | 144:ef7eb2e8f9f7 | 687 | */ |
<> | 144:ef7eb2e8f9f7 | 688 | |
<> | 144:ef7eb2e8f9f7 | 689 | /** @defgroup COMP_Exported_Functions_Group4 Peripheral State functions |
<> | 144:ef7eb2e8f9f7 | 690 | * @brief Peripheral State functions |
<> | 144:ef7eb2e8f9f7 | 691 | * |
<> | 144:ef7eb2e8f9f7 | 692 | @verbatim |
<> | 144:ef7eb2e8f9f7 | 693 | =============================================================================== |
<> | 144:ef7eb2e8f9f7 | 694 | ##### Peripheral State functions ##### |
<> | 144:ef7eb2e8f9f7 | 695 | =============================================================================== |
<> | 144:ef7eb2e8f9f7 | 696 | [..] |
<> | 144:ef7eb2e8f9f7 | 697 | This subsection permit to get in run-time the status of the peripheral |
<> | 144:ef7eb2e8f9f7 | 698 | and the data flow. |
<> | 144:ef7eb2e8f9f7 | 699 | |
<> | 144:ef7eb2e8f9f7 | 700 | @endverbatim |
<> | 144:ef7eb2e8f9f7 | 701 | * @{ |
<> | 144:ef7eb2e8f9f7 | 702 | */ |
<> | 144:ef7eb2e8f9f7 | 703 | |
<> | 144:ef7eb2e8f9f7 | 704 | /** |
<> | 144:ef7eb2e8f9f7 | 705 | * @brief Return the COMP state |
Anna Bridge |
181:96ed750bd169 | 706 | * @param hcomp COMP handle |
<> | 144:ef7eb2e8f9f7 | 707 | * @retval HAL state |
<> | 144:ef7eb2e8f9f7 | 708 | */ |
<> | 144:ef7eb2e8f9f7 | 709 | uint32_t HAL_COMP_GetState(COMP_HandleTypeDef *hcomp) |
<> | 144:ef7eb2e8f9f7 | 710 | { |
<> | 144:ef7eb2e8f9f7 | 711 | /* Check the COMP handle allocation */ |
<> | 144:ef7eb2e8f9f7 | 712 | if(hcomp == NULL) |
<> | 144:ef7eb2e8f9f7 | 713 | { |
<> | 144:ef7eb2e8f9f7 | 714 | return HAL_COMP_STATE_RESET; |
<> | 144:ef7eb2e8f9f7 | 715 | } |
<> | 144:ef7eb2e8f9f7 | 716 | |
<> | 144:ef7eb2e8f9f7 | 717 | /* Check the parameter */ |
<> | 144:ef7eb2e8f9f7 | 718 | assert_param(IS_COMP_ALL_INSTANCE(hcomp->Instance)); |
<> | 144:ef7eb2e8f9f7 | 719 | |
<> | 144:ef7eb2e8f9f7 | 720 | return hcomp->State; |
<> | 144:ef7eb2e8f9f7 | 721 | } |
<> | 144:ef7eb2e8f9f7 | 722 | /** |
<> | 144:ef7eb2e8f9f7 | 723 | * @} |
<> | 144:ef7eb2e8f9f7 | 724 | */ |
<> | 144:ef7eb2e8f9f7 | 725 | |
<> | 144:ef7eb2e8f9f7 | 726 | /** |
<> | 144:ef7eb2e8f9f7 | 727 | * @} |
<> | 144:ef7eb2e8f9f7 | 728 | */ |
<> | 144:ef7eb2e8f9f7 | 729 | |
<> | 144:ef7eb2e8f9f7 | 730 | /** |
<> | 144:ef7eb2e8f9f7 | 731 | * @} |
<> | 144:ef7eb2e8f9f7 | 732 | */ |
<> | 144:ef7eb2e8f9f7 | 733 | |
<> | 144:ef7eb2e8f9f7 | 734 | /** |
<> | 144:ef7eb2e8f9f7 | 735 | * @} |
<> | 144:ef7eb2e8f9f7 | 736 | */ |
<> | 144:ef7eb2e8f9f7 | 737 | |
<> | 144:ef7eb2e8f9f7 | 738 | #endif /* STM32F051x8 || STM32F058xx || */ |
<> | 144:ef7eb2e8f9f7 | 739 | /* STM32F071xB || STM32F072xB || STM32F078xx || */ |
<> | 144:ef7eb2e8f9f7 | 740 | /* STM32F091xC || defined (STM32F098xx) */ |
<> | 144:ef7eb2e8f9f7 | 741 | |
<> | 144:ef7eb2e8f9f7 | 742 | #endif /* HAL_COMP_MODULE_ENABLED */ |
<> | 144:ef7eb2e8f9f7 | 743 | |
<> | 144:ef7eb2e8f9f7 | 744 | /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |