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fix LPC812 PWM

Dependents:   IR_LED_Send

Fork of mbed-dev by mbed official

targets/cmsis/TARGET_STM/TARGET_STM32F0/stm32f0xx_hal_comp.c@0:9b334a45a8ff, 2015-10-01 (annotated)

Committer:
bogdanm
Date:
Thu Oct 01 15:25:22 2015 +0300
Revision:
0:9b334a45a8ff
Initial commit on mbed-dev



Replaces mbed-src (now inactive)

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bogdanm 0:9b334a45a8ff 1 /**
bogdanm 0:9b334a45a8ff 2 ******************************************************************************
bogdanm 0:9b334a45a8ff 3 * @file stm32f0xx_hal_comp.c
bogdanm 0:9b334a45a8ff 4 * @author MCD Application Team
bogdanm 0:9b334a45a8ff 5 * @version V1.3.0
bogdanm 0:9b334a45a8ff 6 * @date 26-June-2015
bogdanm 0:9b334a45a8ff 7 * @brief COMP HAL module driver.
bogdanm 0:9b334a45a8ff 8 * This file provides firmware functions to manage the following
bogdanm 0:9b334a45a8ff 9 * functionalities of the COMP peripheral:
bogdanm 0:9b334a45a8ff 10 * + Initialization/de-initialization functions
bogdanm 0:9b334a45a8ff 11 * + I/O operation functions
bogdanm 0:9b334a45a8ff 12 * + Peripheral Control functions
bogdanm 0:9b334a45a8ff 13 * + Peripheral State functions
bogdanm 0:9b334a45a8ff 14 *
bogdanm 0:9b334a45a8ff 15 @verbatim
bogdanm 0:9b334a45a8ff 16 ================================================================================
bogdanm 0:9b334a45a8ff 17 ##### COMP Peripheral features #####
bogdanm 0:9b334a45a8ff 18 ================================================================================
bogdanm 0:9b334a45a8ff 19
bogdanm 0:9b334a45a8ff 20 [..]
bogdanm 0:9b334a45a8ff 21 The STM32F0xx device family integrates up to 2 analog comparators COMP1 and COMP2:
bogdanm 0:9b334a45a8ff 22 (+) The non inverting input and inverting input can be set to GPIO pins
bogdanm 0:9b334a45a8ff 23 as shown in table1. COMP Inputs below.
bogdanm 0:9b334a45a8ff 24
bogdanm 0:9b334a45a8ff 25 (+) The COMP output is available using HAL_COMP_GetOutputLevel()
bogdanm 0:9b334a45a8ff 26 and can be set on GPIO pins. Refer to table 2. COMP Outputs below.
bogdanm 0:9b334a45a8ff 27
bogdanm 0:9b334a45a8ff 28 (+) The COMP output can be redirected to embedded timers (TIM1, TIM2 and TIM3)
bogdanm 0:9b334a45a8ff 29 Refer to table 3. COMP Outputs redirection to embedded timers below.
bogdanm 0:9b334a45a8ff 30
bogdanm 0:9b334a45a8ff 31 (+) The comparators COMP1 and COMP2 can be combined in window mode.
bogdanm 0:9b334a45a8ff 32
bogdanm 0:9b334a45a8ff 33 (+) The comparators have interrupt capability with wake-up
bogdanm 0:9b334a45a8ff 34 from Sleep and Stop modes (through the EXTI controller):
bogdanm 0:9b334a45a8ff 35 (++) COMP1 is internally connected to EXTI Line 21
bogdanm 0:9b334a45a8ff 36 (++) COMP2 is internally connected to EXTI Line 22
bogdanm 0:9b334a45a8ff 37
bogdanm 0:9b334a45a8ff 38 (+) From the corresponding IRQ handler, the right interrupt source can be retrieved with the
bogdanm 0:9b334a45a8ff 39 macros __HAL_COMP_COMP1_EXTI_GET_FLAG() and __HAL_COMP_COMP2_EXTI_GET_FLAG().
bogdanm 0:9b334a45a8ff 40
bogdanm 0:9b334a45a8ff 41
bogdanm 0:9b334a45a8ff 42 [..] Table 1. COMP Inputs for the STM32F05x, STM32F07x and STM32F09x devices
bogdanm 0:9b334a45a8ff 43 +--------------------------------------------------+
bogdanm 0:9b334a45a8ff 44 | | | COMP1 | COMP2 |
bogdanm 0:9b334a45a8ff 45 |-----------------|----------------|---------------|
bogdanm 0:9b334a45a8ff 46 | | 1/4 VREFINT | OK | OK |
bogdanm 0:9b334a45a8ff 47 | | 1/2 VREFINT | OK | OK |
bogdanm 0:9b334a45a8ff 48 | | 3/4 VREFINT | OK | OK |
bogdanm 0:9b334a45a8ff 49 | Inverting Input | VREFINT | OK | OK |
bogdanm 0:9b334a45a8ff 50 | | DAC1 OUT (PA4) | OK | OK |
bogdanm 0:9b334a45a8ff 51 | | DAC2 OUT (PA5) | OK | OK |
bogdanm 0:9b334a45a8ff 52 | | IO1 | PA0 | PA2 |
bogdanm 0:9b334a45a8ff 53 |-----------------|----------------|-------|-------|
bogdanm 0:9b334a45a8ff 54 | Non Inverting | | PA1 | PA3 |
bogdanm 0:9b334a45a8ff 55 | Input | | | |
bogdanm 0:9b334a45a8ff 56 +--------------------------------------------------+
bogdanm 0:9b334a45a8ff 57
bogdanm 0:9b334a45a8ff 58 [..] Table 2. COMP Outputs for the STM32F05x, STM32F07x and STM32F09x devices
bogdanm 0:9b334a45a8ff 59 +---------------+
bogdanm 0:9b334a45a8ff 60 | COMP1 | COMP2 |
bogdanm 0:9b334a45a8ff 61 |-------|-------|
bogdanm 0:9b334a45a8ff 62 | PA0 | PA2 |
bogdanm 0:9b334a45a8ff 63 | PA6 | PA7 |
bogdanm 0:9b334a45a8ff 64 | PA11 | PA12 |
bogdanm 0:9b334a45a8ff 65 +---------------+
bogdanm 0:9b334a45a8ff 66
bogdanm 0:9b334a45a8ff 67 [..] Table 3. COMP Outputs redirection to embedded timers for the STM32F05x, STM32F07x and STM32F09x devices
bogdanm 0:9b334a45a8ff 68 +---------------------------------+
bogdanm 0:9b334a45a8ff 69 | COMP1 | COMP2 |
bogdanm 0:9b334a45a8ff 70 |----------------|----------------|
bogdanm 0:9b334a45a8ff 71 | TIM1 BKIN | TIM1 BKIN |
bogdanm 0:9b334a45a8ff 72 | | |
bogdanm 0:9b334a45a8ff 73 | TIM1 OCREFCLR | TIM1 OCREFCLR |
bogdanm 0:9b334a45a8ff 74 | | |
bogdanm 0:9b334a45a8ff 75 | TIM1 IC1 | TIM1 IC1 |
bogdanm 0:9b334a45a8ff 76 | | |
bogdanm 0:9b334a45a8ff 77 | TIM2 IC4 | TIM2 IC4 |
bogdanm 0:9b334a45a8ff 78 | | |
bogdanm 0:9b334a45a8ff 79 | TIM2 OCREFCLR | TIM2 OCREFCLR |
bogdanm 0:9b334a45a8ff 80 | | |
bogdanm 0:9b334a45a8ff 81 | TIM3 IC1 | TIM3 IC1 |
bogdanm 0:9b334a45a8ff 82 | | |
bogdanm 0:9b334a45a8ff 83 | TIM3 OCREFCLR | TIM3 OCREFCLR |
bogdanm 0:9b334a45a8ff 84 +---------------------------------+
bogdanm 0:9b334a45a8ff 85
bogdanm 0:9b334a45a8ff 86 ##### How to use this driver #####
bogdanm 0:9b334a45a8ff 87 ================================================================================
bogdanm 0:9b334a45a8ff 88 [..]
bogdanm 0:9b334a45a8ff 89 This driver provides functions to configure and program the Comparators of STM32F05x, STM32F07x and STM32F09x devices.
bogdanm 0:9b334a45a8ff 90
bogdanm 0:9b334a45a8ff 91 To use the comparator, perform the following steps:
bogdanm 0:9b334a45a8ff 92
bogdanm 0:9b334a45a8ff 93 (#) Fill in the HAL_COMP_MspInit() to
bogdanm 0:9b334a45a8ff 94 (++) Configure the comparator input in analog mode using HAL_GPIO_Init()
bogdanm 0:9b334a45a8ff 95 (++) Configure the comparator output in alternate function mode using HAL_GPIO_Init() to map the comparator
bogdanm 0:9b334a45a8ff 96 output to the GPIO pin
bogdanm 0:9b334a45a8ff 97 (++) If required enable the COMP interrupt by configuring and enabling EXTI line in Interrupt mode and
bogdanm 0:9b334a45a8ff 98 selecting the desired sensitivity level using HAL_GPIO_Init() function. After that enable the comparator
bogdanm 0:9b334a45a8ff 99 interrupt vector using HAL_NVIC_EnableIRQ() function.
bogdanm 0:9b334a45a8ff 100
bogdanm 0:9b334a45a8ff 101 (#) Configure the comparator using HAL_COMP_Init() function:
bogdanm 0:9b334a45a8ff 102 (++) Select the inverting input (input minus)
bogdanm 0:9b334a45a8ff 103 (++) Select the non inverting input (input plus)
bogdanm 0:9b334a45a8ff 104 (++) Select the output polarity
bogdanm 0:9b334a45a8ff 105 (++) Select the output redirection
bogdanm 0:9b334a45a8ff 106 (++) Select the hysteresis level
bogdanm 0:9b334a45a8ff 107 (++) Select the power mode
bogdanm 0:9b334a45a8ff 108 (++) Select the event/interrupt mode
bogdanm 0:9b334a45a8ff 109 (++) Select the window mode
bogdanm 0:9b334a45a8ff 110
bogdanm 0:9b334a45a8ff 111 -@@- HAL_COMP_Init() calls internally __HAL_RCC_SYSCFG_CLK_ENABLE() in order
bogdanm 0:9b334a45a8ff 112 to access the comparator(s) registers.
bogdanm 0:9b334a45a8ff 113
bogdanm 0:9b334a45a8ff 114 (#) Enable the comparator using HAL_COMP_Start() function or HAL_COMP_Start_IT() function for interrupt mode.
bogdanm 0:9b334a45a8ff 115
bogdanm 0:9b334a45a8ff 116 (#) Use HAL_COMP_TriggerCallback() and/or HAL_COMP_GetOutputLevel() functions
bogdanm 0:9b334a45a8ff 117 to manage comparator outputs (event/interrupt triggered and output level).
bogdanm 0:9b334a45a8ff 118
bogdanm 0:9b334a45a8ff 119 (#) Disable the comparator using HAL_COMP_Stop() or HAL_COMP_Stop_IT()
bogdanm 0:9b334a45a8ff 120 function.
bogdanm 0:9b334a45a8ff 121
bogdanm 0:9b334a45a8ff 122 (#) De-initialize the comparator using HAL_COMP_DeInit() function.
bogdanm 0:9b334a45a8ff 123
bogdanm 0:9b334a45a8ff 124 (#) For safety purposes comparator(s) can be locked using HAL_COMP_Lock() function.
bogdanm 0:9b334a45a8ff 125 Only a MCU reset can reset that protection.
bogdanm 0:9b334a45a8ff 126
bogdanm 0:9b334a45a8ff 127 @endverbatim
bogdanm 0:9b334a45a8ff 128 ******************************************************************************
bogdanm 0:9b334a45a8ff 129 * @attention
bogdanm 0:9b334a45a8ff 130 *
bogdanm 0:9b334a45a8ff 131 * <h2><center>&copy; COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
bogdanm 0:9b334a45a8ff 132 *
bogdanm 0:9b334a45a8ff 133 * Redistribution and use in source and binary forms, with or without modification,
bogdanm 0:9b334a45a8ff 134 * are permitted provided that the following conditions are met:
bogdanm 0:9b334a45a8ff 135 * 1. Redistributions of source code must retain the above copyright notice,
bogdanm 0:9b334a45a8ff 136 * this list of conditions and the following disclaimer.
bogdanm 0:9b334a45a8ff 137 * 2. Redistributions in binary form must reproduce the above copyright notice,
bogdanm 0:9b334a45a8ff 138 * this list of conditions and the following disclaimer in the documentation
bogdanm 0:9b334a45a8ff 139 * and/or other materials provided with the distribution.
bogdanm 0:9b334a45a8ff 140 * 3. Neither the name of STMicroelectronics nor the names of its contributors
bogdanm 0:9b334a45a8ff 141 * may be used to endorse or promote products derived from this software
bogdanm 0:9b334a45a8ff 142 * without specific prior written permission.
bogdanm 0:9b334a45a8ff 143 *
bogdanm 0:9b334a45a8ff 144 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
bogdanm 0:9b334a45a8ff 145 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
bogdanm 0:9b334a45a8ff 146 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
bogdanm 0:9b334a45a8ff 147 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
bogdanm 0:9b334a45a8ff 148 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
bogdanm 0:9b334a45a8ff 149 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
bogdanm 0:9b334a45a8ff 150 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
bogdanm 0:9b334a45a8ff 151 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
bogdanm 0:9b334a45a8ff 152 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
bogdanm 0:9b334a45a8ff 153 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
bogdanm 0:9b334a45a8ff 154 *
bogdanm 0:9b334a45a8ff 155 ******************************************************************************
bogdanm 0:9b334a45a8ff 156 */
bogdanm 0:9b334a45a8ff 157
bogdanm 0:9b334a45a8ff 158 /* Includes ------------------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 159 #include "stm32f0xx_hal.h"
bogdanm 0:9b334a45a8ff 160
bogdanm 0:9b334a45a8ff 161 #ifdef HAL_COMP_MODULE_ENABLED
bogdanm 0:9b334a45a8ff 162
bogdanm 0:9b334a45a8ff 163 #if defined(STM32F051x8) || defined(STM32F058xx) || \
bogdanm 0:9b334a45a8ff 164 defined(STM32F071xB) || defined(STM32F072xB) || defined(STM32F078xx) || \
bogdanm 0:9b334a45a8ff 165 defined(STM32F091xC) || defined (STM32F098xx)
bogdanm 0:9b334a45a8ff 166
bogdanm 0:9b334a45a8ff 167 /** @addtogroup STM32F0xx_HAL_Driver
bogdanm 0:9b334a45a8ff 168 * @{
bogdanm 0:9b334a45a8ff 169 */
bogdanm 0:9b334a45a8ff 170
bogdanm 0:9b334a45a8ff 171 /** @defgroup COMP COMP
bogdanm 0:9b334a45a8ff 172 * @brief COMP HAL module driver
bogdanm 0:9b334a45a8ff 173 * @{
bogdanm 0:9b334a45a8ff 174 */
bogdanm 0:9b334a45a8ff 175
bogdanm 0:9b334a45a8ff 176 /* Private typedef -----------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 177 /* Private define ------------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 178 /** @defgroup COMP_Private_Constants COMP Private Constants
bogdanm 0:9b334a45a8ff 179 * @{
bogdanm 0:9b334a45a8ff 180 */
bogdanm 0:9b334a45a8ff 181 /* CSR register reset value */
bogdanm 0:9b334a45a8ff 182 #define COMP_CSR_RESET_VALUE ((uint32_t)0x00000000)
bogdanm 0:9b334a45a8ff 183 /* CSR register masks */
bogdanm 0:9b334a45a8ff 184 #define COMP_CSR_RESET_PARAMETERS_MASK ((uint32_t)0x00003FFF)
bogdanm 0:9b334a45a8ff 185 #define COMP_CSR_UPDATE_PARAMETERS_MASK ((uint32_t)0x00003FFE)
bogdanm 0:9b334a45a8ff 186 /* CSR COMPx non inverting input mask */
bogdanm 0:9b334a45a8ff 187 #define COMP_CSR_COMPxNONINSEL_MASK ((uint16_t)COMP_CSR_COMP1SW1)
bogdanm 0:9b334a45a8ff 188 /* CSR COMP2 shift */
bogdanm 0:9b334a45a8ff 189 #define COMP_CSR_COMP1_SHIFT 0U
bogdanm 0:9b334a45a8ff 190 #define COMP_CSR_COMP2_SHIFT 16U
bogdanm 0:9b334a45a8ff 191 /**
bogdanm 0:9b334a45a8ff 192 * @}
bogdanm 0:9b334a45a8ff 193 */
bogdanm 0:9b334a45a8ff 194 /* Private macro -------------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 195 /* Private variables ---------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 196 /* Private function prototypes -----------------------------------------------*/
bogdanm 0:9b334a45a8ff 197 /* Private functions ---------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 198
bogdanm 0:9b334a45a8ff 199 /** @defgroup COMP_Exported_Functions COMP Exported Functions
bogdanm 0:9b334a45a8ff 200 * @{
bogdanm 0:9b334a45a8ff 201 */
bogdanm 0:9b334a45a8ff 202
bogdanm 0:9b334a45a8ff 203 /** @defgroup COMP_Exported_Functions_Group1 Initialization/de-initialization functions
bogdanm 0:9b334a45a8ff 204 * @brief Initialization and Configuration functions
bogdanm 0:9b334a45a8ff 205 *
bogdanm 0:9b334a45a8ff 206 @verbatim
bogdanm 0:9b334a45a8ff 207 ===============================================================================
bogdanm 0:9b334a45a8ff 208 ##### Initialization and Configuration functions #####
bogdanm 0:9b334a45a8ff 209 ===============================================================================
bogdanm 0:9b334a45a8ff 210 [..] This section provides functions to initialize and de-initialize comparators
bogdanm 0:9b334a45a8ff 211
bogdanm 0:9b334a45a8ff 212 @endverbatim
bogdanm 0:9b334a45a8ff 213 * @{
bogdanm 0:9b334a45a8ff 214 */
bogdanm 0:9b334a45a8ff 215
bogdanm 0:9b334a45a8ff 216 /**
bogdanm 0:9b334a45a8ff 217 * @brief Initializes the COMP according to the specified
bogdanm 0:9b334a45a8ff 218 * parameters in the COMP_InitTypeDef and create the associated handle.
bogdanm 0:9b334a45a8ff 219 * @note If the selected comparator is locked, initialization can't be performed.
bogdanm 0:9b334a45a8ff 220 * To unlock the configuration, perform a system reset.
bogdanm 0:9b334a45a8ff 221 * @param hcomp: COMP handle
bogdanm 0:9b334a45a8ff 222 * @retval HAL status
bogdanm 0:9b334a45a8ff 223 */
bogdanm 0:9b334a45a8ff 224 HAL_StatusTypeDef HAL_COMP_Init(COMP_HandleTypeDef *hcomp)
bogdanm 0:9b334a45a8ff 225 {
bogdanm 0:9b334a45a8ff 226 HAL_StatusTypeDef status = HAL_OK;
bogdanm 0:9b334a45a8ff 227 uint32_t regshift = COMP_CSR_COMP1_SHIFT;
bogdanm 0:9b334a45a8ff 228
bogdanm 0:9b334a45a8ff 229 /* Check the COMP handle allocation and lock status */
bogdanm 0:9b334a45a8ff 230 if((hcomp == NULL) || ((hcomp->State & COMP_STATE_BIT_LOCK) != RESET))
bogdanm 0:9b334a45a8ff 231 {
bogdanm 0:9b334a45a8ff 232 status = HAL_ERROR;
bogdanm 0:9b334a45a8ff 233 }
bogdanm 0:9b334a45a8ff 234 else
bogdanm 0:9b334a45a8ff 235 {
bogdanm 0:9b334a45a8ff 236 /* Check the parameter */
bogdanm 0:9b334a45a8ff 237 assert_param(IS_COMP_ALL_INSTANCE(hcomp->Instance));
bogdanm 0:9b334a45a8ff 238 assert_param(IS_COMP_INVERTINGINPUT(hcomp->Init.InvertingInput));
bogdanm 0:9b334a45a8ff 239 assert_param(IS_COMP_NONINVERTINGINPUT(hcomp->Init.NonInvertingInput));
bogdanm 0:9b334a45a8ff 240 assert_param(IS_COMP_OUTPUT(hcomp->Init.Output));
bogdanm 0:9b334a45a8ff 241 assert_param(IS_COMP_OUTPUTPOL(hcomp->Init.OutputPol));
bogdanm 0:9b334a45a8ff 242 assert_param(IS_COMP_HYSTERESIS(hcomp->Init.Hysteresis));
bogdanm 0:9b334a45a8ff 243 assert_param(IS_COMP_MODE(hcomp->Init.Mode));
bogdanm 0:9b334a45a8ff 244
bogdanm 0:9b334a45a8ff 245 if(hcomp->Init.NonInvertingInput == COMP_NONINVERTINGINPUT_DAC1SWITCHCLOSED)
bogdanm 0:9b334a45a8ff 246 {
bogdanm 0:9b334a45a8ff 247 assert_param(IS_COMP_DAC1SWITCH_INSTANCE(hcomp->Instance));
bogdanm 0:9b334a45a8ff 248 }
bogdanm 0:9b334a45a8ff 249
bogdanm 0:9b334a45a8ff 250 if(hcomp->Init.WindowMode != COMP_WINDOWMODE_DISABLE)
bogdanm 0:9b334a45a8ff 251 {
bogdanm 0:9b334a45a8ff 252 assert_param(IS_COMP_WINDOWMODE_INSTANCE(hcomp->Instance));
bogdanm 0:9b334a45a8ff 253 }
bogdanm 0:9b334a45a8ff 254
bogdanm 0:9b334a45a8ff 255 /* Init SYSCFG and the low level hardware to access comparators */
bogdanm 0:9b334a45a8ff 256 __HAL_RCC_SYSCFG_CLK_ENABLE();
bogdanm 0:9b334a45a8ff 257
bogdanm 0:9b334a45a8ff 258 /* Init the low level hardware : SYSCFG to access comparators */
bogdanm 0:9b334a45a8ff 259 HAL_COMP_MspInit(hcomp);
bogdanm 0:9b334a45a8ff 260
bogdanm 0:9b334a45a8ff 261 if(hcomp->State == HAL_COMP_STATE_RESET)
bogdanm 0:9b334a45a8ff 262 {
bogdanm 0:9b334a45a8ff 263 /* Allocate lock resource and initialize it */
bogdanm 0:9b334a45a8ff 264 hcomp->Lock = HAL_UNLOCKED;
bogdanm 0:9b334a45a8ff 265 }
bogdanm 0:9b334a45a8ff 266
bogdanm 0:9b334a45a8ff 267 /* Change COMP peripheral state */
bogdanm 0:9b334a45a8ff 268 hcomp->State = HAL_COMP_STATE_BUSY;
bogdanm 0:9b334a45a8ff 269
bogdanm 0:9b334a45a8ff 270 /* Set COMP parameters */
bogdanm 0:9b334a45a8ff 271 /* Set COMPxINSEL bits according to hcomp->Init.InvertingInput value */
bogdanm 0:9b334a45a8ff 272 /* Set COMPxOUTSEL bits according to hcomp->Init.Output value */
bogdanm 0:9b334a45a8ff 273 /* Set COMPxPOL bit according to hcomp->Init.OutputPol value */
bogdanm 0:9b334a45a8ff 274 /* Set COMPxHYST bits according to hcomp->Init.Hysteresis value */
bogdanm 0:9b334a45a8ff 275 /* Set COMPxMODE bits according to hcomp->Init.Mode value */
bogdanm 0:9b334a45a8ff 276 if(hcomp->Instance == COMP2)
bogdanm 0:9b334a45a8ff 277 {
bogdanm 0:9b334a45a8ff 278 regshift = COMP_CSR_COMP2_SHIFT;
bogdanm 0:9b334a45a8ff 279 }
bogdanm 0:9b334a45a8ff 280 MODIFY_REG(COMP->CSR,
bogdanm 0:9b334a45a8ff 281 (COMP_CSR_COMPxINSEL | COMP_CSR_COMPxNONINSEL_MASK | \
bogdanm 0:9b334a45a8ff 282 COMP_CSR_COMPxOUTSEL | COMP_CSR_COMPxPOL | \
bogdanm 0:9b334a45a8ff 283 COMP_CSR_COMPxHYST | COMP_CSR_COMPxMODE) << regshift,
bogdanm 0:9b334a45a8ff 284 (hcomp->Init.InvertingInput | \
bogdanm 0:9b334a45a8ff 285 hcomp->Init.NonInvertingInput | \
bogdanm 0:9b334a45a8ff 286 hcomp->Init.Output | \
bogdanm 0:9b334a45a8ff 287 hcomp->Init.OutputPol | \
bogdanm 0:9b334a45a8ff 288 hcomp->Init.Hysteresis | \
bogdanm 0:9b334a45a8ff 289 hcomp->Init.Mode) << regshift);
bogdanm 0:9b334a45a8ff 290
bogdanm 0:9b334a45a8ff 291 if(hcomp->Init.WindowMode != COMP_WINDOWMODE_DISABLE)
bogdanm 0:9b334a45a8ff 292 {
bogdanm 0:9b334a45a8ff 293 COMP->CSR |= COMP_CSR_WNDWEN;
bogdanm 0:9b334a45a8ff 294 }
bogdanm 0:9b334a45a8ff 295
bogdanm 0:9b334a45a8ff 296 /* Initialize the COMP state*/
bogdanm 0:9b334a45a8ff 297 hcomp->State = HAL_COMP_STATE_READY;
bogdanm 0:9b334a45a8ff 298 }
bogdanm 0:9b334a45a8ff 299
bogdanm 0:9b334a45a8ff 300 return status;
bogdanm 0:9b334a45a8ff 301 }
bogdanm 0:9b334a45a8ff 302
bogdanm 0:9b334a45a8ff 303 /**
bogdanm 0:9b334a45a8ff 304 * @brief DeInitializes the COMP peripheral
bogdanm 0:9b334a45a8ff 305 * @note Deinitialization can't be performed if the COMP configuration is locked.
bogdanm 0:9b334a45a8ff 306 * To unlock the configuration, perform a system reset.
bogdanm 0:9b334a45a8ff 307 * @param hcomp: COMP handle
bogdanm 0:9b334a45a8ff 308 * @retval HAL status
bogdanm 0:9b334a45a8ff 309 */
bogdanm 0:9b334a45a8ff 310 HAL_StatusTypeDef HAL_COMP_DeInit(COMP_HandleTypeDef *hcomp)
bogdanm 0:9b334a45a8ff 311 {
bogdanm 0:9b334a45a8ff 312 HAL_StatusTypeDef status = HAL_OK;
bogdanm 0:9b334a45a8ff 313 uint32_t regshift = COMP_CSR_COMP1_SHIFT;
bogdanm 0:9b334a45a8ff 314
bogdanm 0:9b334a45a8ff 315 /* Check the COMP handle allocation and lock status */
bogdanm 0:9b334a45a8ff 316 if((hcomp == NULL) || ((hcomp->State & COMP_STATE_BIT_LOCK) != RESET))
bogdanm 0:9b334a45a8ff 317 {
bogdanm 0:9b334a45a8ff 318 status = HAL_ERROR;
bogdanm 0:9b334a45a8ff 319 }
bogdanm 0:9b334a45a8ff 320 else
bogdanm 0:9b334a45a8ff 321 {
bogdanm 0:9b334a45a8ff 322 /* Check the parameter */
bogdanm 0:9b334a45a8ff 323 assert_param(IS_COMP_ALL_INSTANCE(hcomp->Instance));
bogdanm 0:9b334a45a8ff 324
bogdanm 0:9b334a45a8ff 325 /* Set COMP_CSR register to reset value for the corresponding COMP instance */
bogdanm 0:9b334a45a8ff 326 if(hcomp->Instance == COMP2)
bogdanm 0:9b334a45a8ff 327 {
bogdanm 0:9b334a45a8ff 328 regshift = COMP_CSR_COMP2_SHIFT;
bogdanm 0:9b334a45a8ff 329 }
bogdanm 0:9b334a45a8ff 330 MODIFY_REG(COMP->CSR,
bogdanm 0:9b334a45a8ff 331 COMP_CSR_RESET_PARAMETERS_MASK << regshift,
bogdanm 0:9b334a45a8ff 332 COMP_CSR_RESET_VALUE << regshift);
bogdanm 0:9b334a45a8ff 333
bogdanm 0:9b334a45a8ff 334 /* DeInit the low level hardware: SYSCFG, GPIO, CLOCK and NVIC */
bogdanm 0:9b334a45a8ff 335 HAL_COMP_MspDeInit(hcomp);
bogdanm 0:9b334a45a8ff 336
bogdanm 0:9b334a45a8ff 337 hcomp->State = HAL_COMP_STATE_RESET;
bogdanm 0:9b334a45a8ff 338
bogdanm 0:9b334a45a8ff 339 /* Release Lock */
bogdanm 0:9b334a45a8ff 340 __HAL_UNLOCK(hcomp);
bogdanm 0:9b334a45a8ff 341 }
bogdanm 0:9b334a45a8ff 342
bogdanm 0:9b334a45a8ff 343 return status;
bogdanm 0:9b334a45a8ff 344 }
bogdanm 0:9b334a45a8ff 345
bogdanm 0:9b334a45a8ff 346 /**
bogdanm 0:9b334a45a8ff 347 * @brief Initializes the COMP MSP.
bogdanm 0:9b334a45a8ff 348 * @param hcomp: COMP handle
bogdanm 0:9b334a45a8ff 349 * @retval None
bogdanm 0:9b334a45a8ff 350 */
bogdanm 0:9b334a45a8ff 351 __weak void HAL_COMP_MspInit(COMP_HandleTypeDef *hcomp)
bogdanm 0:9b334a45a8ff 352 {
bogdanm 0:9b334a45a8ff 353 /* NOTE : This function Should not be modified, when the callback is needed,
bogdanm 0:9b334a45a8ff 354 the HAL_COMP_MspInit could be implenetd in the user file
bogdanm 0:9b334a45a8ff 355 */
bogdanm 0:9b334a45a8ff 356 }
bogdanm 0:9b334a45a8ff 357
bogdanm 0:9b334a45a8ff 358 /**
bogdanm 0:9b334a45a8ff 359 * @brief DeInitializes COMP MSP.
bogdanm 0:9b334a45a8ff 360 * @param hcomp: COMP handle
bogdanm 0:9b334a45a8ff 361 * @retval None
bogdanm 0:9b334a45a8ff 362 */
bogdanm 0:9b334a45a8ff 363 __weak void HAL_COMP_MspDeInit(COMP_HandleTypeDef *hcomp)
bogdanm 0:9b334a45a8ff 364 {
bogdanm 0:9b334a45a8ff 365 /* NOTE : This function Should not be modified, when the callback is needed,
bogdanm 0:9b334a45a8ff 366 the HAL_COMP_MspDeInit could be implenetd in the user file
bogdanm 0:9b334a45a8ff 367 */
bogdanm 0:9b334a45a8ff 368 }
bogdanm 0:9b334a45a8ff 369
bogdanm 0:9b334a45a8ff 370 /**
bogdanm 0:9b334a45a8ff 371 * @}
bogdanm 0:9b334a45a8ff 372 */
bogdanm 0:9b334a45a8ff 373
bogdanm 0:9b334a45a8ff 374 /** @defgroup COMP_Exported_Functions_Group2 I/O operation functions
bogdanm 0:9b334a45a8ff 375 * @brief Data transfers functions
bogdanm 0:9b334a45a8ff 376 *
bogdanm 0:9b334a45a8ff 377 @verbatim
bogdanm 0:9b334a45a8ff 378 ===============================================================================
bogdanm 0:9b334a45a8ff 379 ##### IO operation functions #####
bogdanm 0:9b334a45a8ff 380 ===============================================================================
bogdanm 0:9b334a45a8ff 381 [..]
bogdanm 0:9b334a45a8ff 382 This subsection provides a set of functions allowing to manage the COMP data
bogdanm 0:9b334a45a8ff 383 transfers.
bogdanm 0:9b334a45a8ff 384
bogdanm 0:9b334a45a8ff 385 @endverbatim
bogdanm 0:9b334a45a8ff 386 * @{
bogdanm 0:9b334a45a8ff 387 */
bogdanm 0:9b334a45a8ff 388
bogdanm 0:9b334a45a8ff 389 /**
bogdanm 0:9b334a45a8ff 390 * @brief Start the comparator
bogdanm 0:9b334a45a8ff 391 * @param hcomp: COMP handle
bogdanm 0:9b334a45a8ff 392 * @retval HAL status
bogdanm 0:9b334a45a8ff 393 */
bogdanm 0:9b334a45a8ff 394 HAL_StatusTypeDef HAL_COMP_Start(COMP_HandleTypeDef *hcomp)
bogdanm 0:9b334a45a8ff 395 {
bogdanm 0:9b334a45a8ff 396 HAL_StatusTypeDef status = HAL_OK;
bogdanm 0:9b334a45a8ff 397 uint32_t regshift = COMP_CSR_COMP1_SHIFT;
bogdanm 0:9b334a45a8ff 398
bogdanm 0:9b334a45a8ff 399 /* Check the COMP handle allocation and lock status */
bogdanm 0:9b334a45a8ff 400 if((hcomp == NULL) || ((hcomp->State & COMP_STATE_BIT_LOCK) != RESET))
bogdanm 0:9b334a45a8ff 401 {
bogdanm 0:9b334a45a8ff 402 status = HAL_ERROR;
bogdanm 0:9b334a45a8ff 403 }
bogdanm 0:9b334a45a8ff 404 else
bogdanm 0:9b334a45a8ff 405 {
bogdanm 0:9b334a45a8ff 406 /* Check the parameter */
bogdanm 0:9b334a45a8ff 407 assert_param(IS_COMP_ALL_INSTANCE(hcomp->Instance));
bogdanm 0:9b334a45a8ff 408
bogdanm 0:9b334a45a8ff 409 if(hcomp->State == HAL_COMP_STATE_READY)
bogdanm 0:9b334a45a8ff 410 {
bogdanm 0:9b334a45a8ff 411 /* Enable the selected comparator */
bogdanm 0:9b334a45a8ff 412 if(hcomp->Instance == COMP2)
bogdanm 0:9b334a45a8ff 413 {
bogdanm 0:9b334a45a8ff 414 regshift = COMP_CSR_COMP2_SHIFT;
bogdanm 0:9b334a45a8ff 415 }
bogdanm 0:9b334a45a8ff 416 SET_BIT(COMP->CSR, COMP_CSR_COMPxEN << regshift);
bogdanm 0:9b334a45a8ff 417
bogdanm 0:9b334a45a8ff 418 hcomp->State = HAL_COMP_STATE_BUSY;
bogdanm 0:9b334a45a8ff 419 }
bogdanm 0:9b334a45a8ff 420 else
bogdanm 0:9b334a45a8ff 421 {
bogdanm 0:9b334a45a8ff 422 status = HAL_ERROR;
bogdanm 0:9b334a45a8ff 423 }
bogdanm 0:9b334a45a8ff 424 }
bogdanm 0:9b334a45a8ff 425
bogdanm 0:9b334a45a8ff 426 return status;
bogdanm 0:9b334a45a8ff 427 }
bogdanm 0:9b334a45a8ff 428
bogdanm 0:9b334a45a8ff 429 /**
bogdanm 0:9b334a45a8ff 430 * @brief Stop the comparator
bogdanm 0:9b334a45a8ff 431 * @param hcomp: COMP handle
bogdanm 0:9b334a45a8ff 432 * @retval HAL status
bogdanm 0:9b334a45a8ff 433 */
bogdanm 0:9b334a45a8ff 434 HAL_StatusTypeDef HAL_COMP_Stop(COMP_HandleTypeDef *hcomp)
bogdanm 0:9b334a45a8ff 435 {
bogdanm 0:9b334a45a8ff 436 HAL_StatusTypeDef status = HAL_OK;
bogdanm 0:9b334a45a8ff 437 uint32_t regshift = COMP_CSR_COMP1_SHIFT;
bogdanm 0:9b334a45a8ff 438
bogdanm 0:9b334a45a8ff 439 /* Check the COMP handle allocation and lock status */
bogdanm 0:9b334a45a8ff 440 if((hcomp == NULL) || ((hcomp->State & COMP_STATE_BIT_LOCK) != RESET))
bogdanm 0:9b334a45a8ff 441 {
bogdanm 0:9b334a45a8ff 442 status = HAL_ERROR;
bogdanm 0:9b334a45a8ff 443 }
bogdanm 0:9b334a45a8ff 444 else
bogdanm 0:9b334a45a8ff 445 {
bogdanm 0:9b334a45a8ff 446 /* Check the parameter */
bogdanm 0:9b334a45a8ff 447 assert_param(IS_COMP_ALL_INSTANCE(hcomp->Instance));
bogdanm 0:9b334a45a8ff 448
bogdanm 0:9b334a45a8ff 449 if(hcomp->State == HAL_COMP_STATE_BUSY)
bogdanm 0:9b334a45a8ff 450 {
bogdanm 0:9b334a45a8ff 451 /* Disable the selected comparator */
bogdanm 0:9b334a45a8ff 452 if(hcomp->Instance == COMP2)
bogdanm 0:9b334a45a8ff 453 {
bogdanm 0:9b334a45a8ff 454 regshift = COMP_CSR_COMP2_SHIFT;
bogdanm 0:9b334a45a8ff 455 }
bogdanm 0:9b334a45a8ff 456 CLEAR_BIT(COMP->CSR, COMP_CSR_COMPxEN << regshift);
bogdanm 0:9b334a45a8ff 457
bogdanm 0:9b334a45a8ff 458 hcomp->State = HAL_COMP_STATE_READY;
bogdanm 0:9b334a45a8ff 459 }
bogdanm 0:9b334a45a8ff 460 else
bogdanm 0:9b334a45a8ff 461 {
bogdanm 0:9b334a45a8ff 462 status = HAL_ERROR;
bogdanm 0:9b334a45a8ff 463 }
bogdanm 0:9b334a45a8ff 464 }
bogdanm 0:9b334a45a8ff 465
bogdanm 0:9b334a45a8ff 466 return status;
bogdanm 0:9b334a45a8ff 467 }
bogdanm 0:9b334a45a8ff 468
bogdanm 0:9b334a45a8ff 469 /**
bogdanm 0:9b334a45a8ff 470 * @brief Enables the interrupt and starts the comparator
bogdanm 0:9b334a45a8ff 471 * @param hcomp: COMP handle
bogdanm 0:9b334a45a8ff 472 * @retval HAL status.
bogdanm 0:9b334a45a8ff 473 */
bogdanm 0:9b334a45a8ff 474 HAL_StatusTypeDef HAL_COMP_Start_IT(COMP_HandleTypeDef *hcomp)
bogdanm 0:9b334a45a8ff 475 {
bogdanm 0:9b334a45a8ff 476 HAL_StatusTypeDef status = HAL_OK;
bogdanm 0:9b334a45a8ff 477 uint32_t extiline = 0;
bogdanm 0:9b334a45a8ff 478
bogdanm 0:9b334a45a8ff 479 /* Check the parameter */
bogdanm 0:9b334a45a8ff 480 assert_param(IS_COMP_TRIGGERMODE(hcomp->Init.TriggerMode));
bogdanm 0:9b334a45a8ff 481
bogdanm 0:9b334a45a8ff 482 status = HAL_COMP_Start(hcomp);
bogdanm 0:9b334a45a8ff 483 if(status == HAL_OK)
bogdanm 0:9b334a45a8ff 484 {
bogdanm 0:9b334a45a8ff 485 /* Check the Exti Line output configuration */
bogdanm 0:9b334a45a8ff 486 extiline = COMP_GET_EXTI_LINE(hcomp->Instance);
bogdanm 0:9b334a45a8ff 487 /* Configure the rising edge */
bogdanm 0:9b334a45a8ff 488 if((hcomp->Init.TriggerMode & COMP_TRIGGERMODE_IT_RISING) != RESET)
bogdanm 0:9b334a45a8ff 489 {
bogdanm 0:9b334a45a8ff 490 SET_BIT(EXTI->RTSR, extiline);
bogdanm 0:9b334a45a8ff 491 }
bogdanm 0:9b334a45a8ff 492 else
bogdanm 0:9b334a45a8ff 493 {
bogdanm 0:9b334a45a8ff 494 CLEAR_BIT(EXTI->RTSR, extiline);
bogdanm 0:9b334a45a8ff 495 }
bogdanm 0:9b334a45a8ff 496 /* Configure the falling edge */
bogdanm 0:9b334a45a8ff 497 if((hcomp->Init.TriggerMode & COMP_TRIGGERMODE_IT_FALLING) != RESET)
bogdanm 0:9b334a45a8ff 498 {
bogdanm 0:9b334a45a8ff 499 SET_BIT(EXTI->FTSR, extiline);
bogdanm 0:9b334a45a8ff 500 }
bogdanm 0:9b334a45a8ff 501 else
bogdanm 0:9b334a45a8ff 502 {
bogdanm 0:9b334a45a8ff 503 CLEAR_BIT(EXTI->FTSR, extiline);
bogdanm 0:9b334a45a8ff 504 }
bogdanm 0:9b334a45a8ff 505
bogdanm 0:9b334a45a8ff 506 /* Clear COMP EXTI pending bit */
bogdanm 0:9b334a45a8ff 507 WRITE_REG(EXTI->PR, extiline);
bogdanm 0:9b334a45a8ff 508
bogdanm 0:9b334a45a8ff 509 /* Enable Exti interrupt mode */
bogdanm 0:9b334a45a8ff 510 SET_BIT(EXTI->IMR, extiline);
bogdanm 0:9b334a45a8ff 511 }
bogdanm 0:9b334a45a8ff 512
bogdanm 0:9b334a45a8ff 513 return status;
bogdanm 0:9b334a45a8ff 514 }
bogdanm 0:9b334a45a8ff 515
bogdanm 0:9b334a45a8ff 516 /**
bogdanm 0:9b334a45a8ff 517 * @brief Disable the interrupt and Stop the comparator
bogdanm 0:9b334a45a8ff 518 * @param hcomp: COMP handle
bogdanm 0:9b334a45a8ff 519 * @retval HAL status
bogdanm 0:9b334a45a8ff 520 */
bogdanm 0:9b334a45a8ff 521 HAL_StatusTypeDef HAL_COMP_Stop_IT(COMP_HandleTypeDef *hcomp)
bogdanm 0:9b334a45a8ff 522 {
bogdanm 0:9b334a45a8ff 523 HAL_StatusTypeDef status = HAL_OK;
bogdanm 0:9b334a45a8ff 524
bogdanm 0:9b334a45a8ff 525 /* Disable the Exti Line interrupt mode */
bogdanm 0:9b334a45a8ff 526 CLEAR_BIT(EXTI->IMR, COMP_GET_EXTI_LINE(hcomp->Instance));
bogdanm 0:9b334a45a8ff 527
bogdanm 0:9b334a45a8ff 528 status = HAL_COMP_Stop(hcomp);
bogdanm 0:9b334a45a8ff 529
bogdanm 0:9b334a45a8ff 530 return status;
bogdanm 0:9b334a45a8ff 531 }
bogdanm 0:9b334a45a8ff 532
bogdanm 0:9b334a45a8ff 533 /**
bogdanm 0:9b334a45a8ff 534 * @brief Comparator IRQ Handler
bogdanm 0:9b334a45a8ff 535 * @param hcomp: COMP handle
bogdanm 0:9b334a45a8ff 536 * @retval HAL status
bogdanm 0:9b334a45a8ff 537 */
bogdanm 0:9b334a45a8ff 538 void HAL_COMP_IRQHandler(COMP_HandleTypeDef *hcomp)
bogdanm 0:9b334a45a8ff 539 {
bogdanm 0:9b334a45a8ff 540 uint32_t extiline = COMP_GET_EXTI_LINE(hcomp->Instance);
bogdanm 0:9b334a45a8ff 541
bogdanm 0:9b334a45a8ff 542 /* Check COMP Exti flag */
bogdanm 0:9b334a45a8ff 543 if(READ_BIT(EXTI->PR, extiline) != RESET)
bogdanm 0:9b334a45a8ff 544 {
bogdanm 0:9b334a45a8ff 545 /* Clear COMP Exti pending bit */
bogdanm 0:9b334a45a8ff 546 WRITE_REG(EXTI->PR, extiline);
bogdanm 0:9b334a45a8ff 547
bogdanm 0:9b334a45a8ff 548 /* COMP trigger user callback */
bogdanm 0:9b334a45a8ff 549 HAL_COMP_TriggerCallback(hcomp);
bogdanm 0:9b334a45a8ff 550 }
bogdanm 0:9b334a45a8ff 551 }
bogdanm 0:9b334a45a8ff 552
bogdanm 0:9b334a45a8ff 553 /**
bogdanm 0:9b334a45a8ff 554 * @}
bogdanm 0:9b334a45a8ff 555 */
bogdanm 0:9b334a45a8ff 556
bogdanm 0:9b334a45a8ff 557 /** @defgroup COMP_Exported_Functions_Group3 Peripheral Control functions
bogdanm 0:9b334a45a8ff 558 * @brief management functions
bogdanm 0:9b334a45a8ff 559 *
bogdanm 0:9b334a45a8ff 560 @verbatim
bogdanm 0:9b334a45a8ff 561 ===============================================================================
bogdanm 0:9b334a45a8ff 562 ##### Peripheral Control functions #####
bogdanm 0:9b334a45a8ff 563 ===============================================================================
bogdanm 0:9b334a45a8ff 564 [..]
bogdanm 0:9b334a45a8ff 565 This subsection provides a set of functions allowing to control the COMP data
bogdanm 0:9b334a45a8ff 566 transfers.
bogdanm 0:9b334a45a8ff 567
bogdanm 0:9b334a45a8ff 568 @endverbatim
bogdanm 0:9b334a45a8ff 569 * @{
bogdanm 0:9b334a45a8ff 570 */
bogdanm 0:9b334a45a8ff 571
bogdanm 0:9b334a45a8ff 572 /**
bogdanm 0:9b334a45a8ff 573 * @brief Lock the selected comparator configuration.
bogdanm 0:9b334a45a8ff 574 * @param hcomp: COMP handle
bogdanm 0:9b334a45a8ff 575 * @retval HAL status
bogdanm 0:9b334a45a8ff 576 */
bogdanm 0:9b334a45a8ff 577 HAL_StatusTypeDef HAL_COMP_Lock(COMP_HandleTypeDef *hcomp)
bogdanm 0:9b334a45a8ff 578 {
bogdanm 0:9b334a45a8ff 579 HAL_StatusTypeDef status = HAL_OK;
bogdanm 0:9b334a45a8ff 580 uint32_t regshift = COMP_CSR_COMP1_SHIFT;
bogdanm 0:9b334a45a8ff 581
bogdanm 0:9b334a45a8ff 582 /* Check the COMP handle allocation and lock status */
bogdanm 0:9b334a45a8ff 583 if((hcomp == NULL) || ((hcomp->State & COMP_STATE_BIT_LOCK) != RESET))
bogdanm 0:9b334a45a8ff 584 {
bogdanm 0:9b334a45a8ff 585 status = HAL_ERROR;
bogdanm 0:9b334a45a8ff 586 }
bogdanm 0:9b334a45a8ff 587 else
bogdanm 0:9b334a45a8ff 588 {
bogdanm 0:9b334a45a8ff 589 /* Check the parameter */
bogdanm 0:9b334a45a8ff 590 assert_param(IS_COMP_ALL_INSTANCE(hcomp->Instance));
bogdanm 0:9b334a45a8ff 591
bogdanm 0:9b334a45a8ff 592 /* Set lock flag */
bogdanm 0:9b334a45a8ff 593 hcomp->State |= COMP_STATE_BIT_LOCK;
bogdanm 0:9b334a45a8ff 594
bogdanm 0:9b334a45a8ff 595 /* Set the lock bit corresponding to selected comparator */
bogdanm 0:9b334a45a8ff 596 if(hcomp->Instance == COMP2)
bogdanm 0:9b334a45a8ff 597 {
bogdanm 0:9b334a45a8ff 598 regshift = COMP_CSR_COMP2_SHIFT;
bogdanm 0:9b334a45a8ff 599 }
bogdanm 0:9b334a45a8ff 600 SET_BIT(COMP->CSR, COMP_CSR_COMPxLOCK << regshift);
bogdanm 0:9b334a45a8ff 601 }
bogdanm 0:9b334a45a8ff 602
bogdanm 0:9b334a45a8ff 603 return status;
bogdanm 0:9b334a45a8ff 604 }
bogdanm 0:9b334a45a8ff 605
bogdanm 0:9b334a45a8ff 606 /**
bogdanm 0:9b334a45a8ff 607 * @brief Return the output level (high or low) of the selected comparator.
bogdanm 0:9b334a45a8ff 608 * The output level depends on the selected polarity.
bogdanm 0:9b334a45a8ff 609 * If the polarity is not inverted:
bogdanm 0:9b334a45a8ff 610 * - Comparator output is low when the non-inverting input is at a lower
bogdanm 0:9b334a45a8ff 611 * voltage than the inverting input
bogdanm 0:9b334a45a8ff 612 * - Comparator output is high when the non-inverting input is at a higher
bogdanm 0:9b334a45a8ff 613 * voltage than the inverting input
bogdanm 0:9b334a45a8ff 614 * If the polarity is inverted:
bogdanm 0:9b334a45a8ff 615 * - Comparator output is high when the non-inverting input is at a lower
bogdanm 0:9b334a45a8ff 616 * voltage than the inverting input
bogdanm 0:9b334a45a8ff 617 * - Comparator output is low when the non-inverting input is at a higher
bogdanm 0:9b334a45a8ff 618 * voltage than the inverting input
bogdanm 0:9b334a45a8ff 619 * @param hcomp: COMP handle
bogdanm 0:9b334a45a8ff 620 * @retval Returns the selected comparator output level: COMP_OUTPUTLEVEL_LOW or COMP_OUTPUTLEVEL_HIGH.
bogdanm 0:9b334a45a8ff 621 *
bogdanm 0:9b334a45a8ff 622 */
bogdanm 0:9b334a45a8ff 623 uint32_t HAL_COMP_GetOutputLevel(COMP_HandleTypeDef *hcomp)
bogdanm 0:9b334a45a8ff 624 {
bogdanm 0:9b334a45a8ff 625 uint32_t level=0;
bogdanm 0:9b334a45a8ff 626 uint32_t regshift = COMP_CSR_COMP1_SHIFT;
bogdanm 0:9b334a45a8ff 627
bogdanm 0:9b334a45a8ff 628 /* Check the parameter */
bogdanm 0:9b334a45a8ff 629 assert_param(IS_COMP_ALL_INSTANCE(hcomp->Instance));
bogdanm 0:9b334a45a8ff 630
bogdanm 0:9b334a45a8ff 631 if(hcomp->Instance == COMP2)
bogdanm 0:9b334a45a8ff 632 {
bogdanm 0:9b334a45a8ff 633 regshift = COMP_CSR_COMP2_SHIFT;
bogdanm 0:9b334a45a8ff 634 }
bogdanm 0:9b334a45a8ff 635 level = READ_BIT(COMP->CSR, COMP_CSR_COMPxOUT << regshift);
bogdanm 0:9b334a45a8ff 636
bogdanm 0:9b334a45a8ff 637 if(level != 0)
bogdanm 0:9b334a45a8ff 638 {
bogdanm 0:9b334a45a8ff 639 return(COMP_OUTPUTLEVEL_HIGH);
bogdanm 0:9b334a45a8ff 640 }
bogdanm 0:9b334a45a8ff 641 return(COMP_OUTPUTLEVEL_LOW);
bogdanm 0:9b334a45a8ff 642 }
bogdanm 0:9b334a45a8ff 643
bogdanm 0:9b334a45a8ff 644 /**
bogdanm 0:9b334a45a8ff 645 * @brief Comparator callback.
bogdanm 0:9b334a45a8ff 646 * @param hcomp: COMP handle
bogdanm 0:9b334a45a8ff 647 * @retval None
bogdanm 0:9b334a45a8ff 648 */
bogdanm 0:9b334a45a8ff 649 __weak void HAL_COMP_TriggerCallback(COMP_HandleTypeDef *hcomp)
bogdanm 0:9b334a45a8ff 650 {
bogdanm 0:9b334a45a8ff 651 /* NOTE : This function should not be modified, when the callback is needed,
bogdanm 0:9b334a45a8ff 652 the HAL_COMP_TriggerCallback should be implemented in the user file
bogdanm 0:9b334a45a8ff 653 */
bogdanm 0:9b334a45a8ff 654 }
bogdanm 0:9b334a45a8ff 655
bogdanm 0:9b334a45a8ff 656
bogdanm 0:9b334a45a8ff 657 /**
bogdanm 0:9b334a45a8ff 658 * @}
bogdanm 0:9b334a45a8ff 659 */
bogdanm 0:9b334a45a8ff 660
bogdanm 0:9b334a45a8ff 661 /** @defgroup COMP_Exported_Functions_Group4 Peripheral State functions
bogdanm 0:9b334a45a8ff 662 * @brief Peripheral State functions
bogdanm 0:9b334a45a8ff 663 *
bogdanm 0:9b334a45a8ff 664 @verbatim
bogdanm 0:9b334a45a8ff 665 ===============================================================================
bogdanm 0:9b334a45a8ff 666 ##### Peripheral State functions #####
bogdanm 0:9b334a45a8ff 667 ===============================================================================
bogdanm 0:9b334a45a8ff 668 [..]
bogdanm 0:9b334a45a8ff 669 This subsection permit to get in run-time the status of the peripheral
bogdanm 0:9b334a45a8ff 670 and the data flow.
bogdanm 0:9b334a45a8ff 671
bogdanm 0:9b334a45a8ff 672 @endverbatim
bogdanm 0:9b334a45a8ff 673 * @{
bogdanm 0:9b334a45a8ff 674 */
bogdanm 0:9b334a45a8ff 675
bogdanm 0:9b334a45a8ff 676 /**
bogdanm 0:9b334a45a8ff 677 * @brief Return the COMP state
bogdanm 0:9b334a45a8ff 678 * @param hcomp : COMP handle
bogdanm 0:9b334a45a8ff 679 * @retval HAL state
bogdanm 0:9b334a45a8ff 680 */
bogdanm 0:9b334a45a8ff 681 uint32_t HAL_COMP_GetState(COMP_HandleTypeDef *hcomp)
bogdanm 0:9b334a45a8ff 682 {
bogdanm 0:9b334a45a8ff 683 /* Check the COMP handle allocation */
bogdanm 0:9b334a45a8ff 684 if(hcomp == NULL)
bogdanm 0:9b334a45a8ff 685 {
bogdanm 0:9b334a45a8ff 686 return HAL_COMP_STATE_RESET;
bogdanm 0:9b334a45a8ff 687 }
bogdanm 0:9b334a45a8ff 688
bogdanm 0:9b334a45a8ff 689 /* Check the parameter */
bogdanm 0:9b334a45a8ff 690 assert_param(IS_COMP_ALL_INSTANCE(hcomp->Instance));
bogdanm 0:9b334a45a8ff 691
bogdanm 0:9b334a45a8ff 692 return hcomp->State;
bogdanm 0:9b334a45a8ff 693 }
bogdanm 0:9b334a45a8ff 694 /**
bogdanm 0:9b334a45a8ff 695 * @}
bogdanm 0:9b334a45a8ff 696 */
bogdanm 0:9b334a45a8ff 697
bogdanm 0:9b334a45a8ff 698 /**
bogdanm 0:9b334a45a8ff 699 * @}
bogdanm 0:9b334a45a8ff 700 */
bogdanm 0:9b334a45a8ff 701
bogdanm 0:9b334a45a8ff 702 /**
bogdanm 0:9b334a45a8ff 703 * @}
bogdanm 0:9b334a45a8ff 704 */
bogdanm 0:9b334a45a8ff 705
bogdanm 0:9b334a45a8ff 706 /**
bogdanm 0:9b334a45a8ff 707 * @}
bogdanm 0:9b334a45a8ff 708 */
bogdanm 0:9b334a45a8ff 709
bogdanm 0:9b334a45a8ff 710 #endif /* STM32F051x8 || STM32F058xx || */
bogdanm 0:9b334a45a8ff 711 /* STM32F071xB || STM32F072xB || STM32F078xx || */
bogdanm 0:9b334a45a8ff 712 /* STM32F091xC || defined (STM32F098xx) */
bogdanm 0:9b334a45a8ff 713
bogdanm 0:9b334a45a8ff 714 #endif /* HAL_COMP_MODULE_ENABLED */
bogdanm 0:9b334a45a8ff 715
bogdanm 0:9b334a45a8ff 716 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/