en 129 / mbed-dev

fix LPC812 PWM

Dependents:   IR_LED_Send

Fork of mbed-dev by mbed official

targets/cmsis/TARGET_STM/TARGET_STM32L0/stm32l0xx_hal_comp_ex.c@0:9b334a45a8ff, 2015-10-01 (annotated)

Committer:
bogdanm
Date:
Thu Oct 01 15:25:22 2015 +0300
Revision:
0:9b334a45a8ff
Child:
113:b3775bf36a83
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 stm32l0xx_hal_comp_ex.c
bogdanm 0:9b334a45a8ff 4 * @author MCD Application Team
bogdanm 0:9b334a45a8ff 5 * @version V1.2.0
bogdanm 0:9b334a45a8ff 6 * @date 06-February-2015
bogdanm 0:9b334a45a8ff 7 * @brief Extended COMP HAL module driver.
bogdanm 0:9b334a45a8ff 8 * @brief This file provides firmware functions to manage the VREFINT
bogdanm 0:9b334a45a8ff 9 * which can act as input to the comparator.
bogdanm 0:9b334a45a8ff 10 @verbatim
bogdanm 0:9b334a45a8ff 11 ==============================================================================
bogdanm 0:9b334a45a8ff 12 ##### COMP peripheral Extended features #####
bogdanm 0:9b334a45a8ff 13 ==============================================================================
bogdanm 0:9b334a45a8ff 14
bogdanm 0:9b334a45a8ff 15 [..] Comparing to other previous devices, the COMP interface for STM32L0XX
bogdanm 0:9b334a45a8ff 16 devices contains the following additional features
bogdanm 0:9b334a45a8ff 17
bogdanm 0:9b334a45a8ff 18 (+) Possibility to enable or disable the VREFINT which is used as input
bogdanm 0:9b334a45a8ff 19 to the comparator.
bogdanm 0:9b334a45a8ff 20
bogdanm 0:9b334a45a8ff 21
bogdanm 0:9b334a45a8ff 22 @endverbatim
bogdanm 0:9b334a45a8ff 23 ******************************************************************************
bogdanm 0:9b334a45a8ff 24 * @attention
bogdanm 0:9b334a45a8ff 25 *
bogdanm 0:9b334a45a8ff 26 * <h2><center>&copy; COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
bogdanm 0:9b334a45a8ff 27 *
bogdanm 0:9b334a45a8ff 28 * Redistribution and use in source and binary forms, with or without modification,
bogdanm 0:9b334a45a8ff 29 * are permitted provided that the following conditions are met:
bogdanm 0:9b334a45a8ff 30 * 1. Redistributions of source code must retain the above copyright notice,
bogdanm 0:9b334a45a8ff 31 * this list of conditions and the following disclaimer.
bogdanm 0:9b334a45a8ff 32 * 2. Redistributions in binary form must reproduce the above copyright notice,
bogdanm 0:9b334a45a8ff 33 * this list of conditions and the following disclaimer in the documentation
bogdanm 0:9b334a45a8ff 34 * and/or other materials provided with the distribution.
bogdanm 0:9b334a45a8ff 35 * 3. Neither the name of STMicroelectronics nor the names of its contributors
bogdanm 0:9b334a45a8ff 36 * may be used to endorse or promote products derived from this software
bogdanm 0:9b334a45a8ff 37 * without specific prior written permission.
bogdanm 0:9b334a45a8ff 38 *
bogdanm 0:9b334a45a8ff 39 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
bogdanm 0:9b334a45a8ff 40 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
bogdanm 0:9b334a45a8ff 41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
bogdanm 0:9b334a45a8ff 42 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
bogdanm 0:9b334a45a8ff 43 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
bogdanm 0:9b334a45a8ff 44 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
bogdanm 0:9b334a45a8ff 45 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
bogdanm 0:9b334a45a8ff 46 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
bogdanm 0:9b334a45a8ff 47 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
bogdanm 0:9b334a45a8ff 48 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
bogdanm 0:9b334a45a8ff 49 *
bogdanm 0:9b334a45a8ff 50 ******************************************************************************
bogdanm 0:9b334a45a8ff 51 */
bogdanm 0:9b334a45a8ff 52
bogdanm 0:9b334a45a8ff 53 /* Includes ------------------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 54 #include "stm32l0xx_hal.h"
bogdanm 0:9b334a45a8ff 55
bogdanm 0:9b334a45a8ff 56 /** @addtogroup STM32L0xx_HAL_Driver
bogdanm 0:9b334a45a8ff 57 * @{
bogdanm 0:9b334a45a8ff 58 */
bogdanm 0:9b334a45a8ff 59
bogdanm 0:9b334a45a8ff 60 /** @addtogroup COMPEx
bogdanm 0:9b334a45a8ff 61 * @brief Extended COMP HAL module driver
bogdanm 0:9b334a45a8ff 62 * @{
bogdanm 0:9b334a45a8ff 63 */
bogdanm 0:9b334a45a8ff 64
bogdanm 0:9b334a45a8ff 65 #ifdef HAL_COMP_MODULE_ENABLED
bogdanm 0:9b334a45a8ff 66
bogdanm 0:9b334a45a8ff 67
bogdanm 0:9b334a45a8ff 68 /** @addtogroup COMPEx_Exported_Functions
bogdanm 0:9b334a45a8ff 69 * @{
bogdanm 0:9b334a45a8ff 70 */
bogdanm 0:9b334a45a8ff 71
bogdanm 0:9b334a45a8ff 72 /** @addtogroup COMPEx_Exported_Functions_Group1
bogdanm 0:9b334a45a8ff 73 * @brief Extended functions to manage VREFINT for the comparator
bogdanm 0:9b334a45a8ff 74 *
bogdanm 0:9b334a45a8ff 75 * @{
bogdanm 0:9b334a45a8ff 76 */
bogdanm 0:9b334a45a8ff 77
bogdanm 0:9b334a45a8ff 78 /**
bogdanm 0:9b334a45a8ff 79 * @brief Enables the Buffer Vrefint for the COMP.
bogdanm 0:9b334a45a8ff 80 * @note This is functional only if the LOCK bit is not set
bogdanm 0:9b334a45a8ff 81
bogdanm 0:9b334a45a8ff 82 * @retval None
bogdanm 0:9b334a45a8ff 83 */
bogdanm 0:9b334a45a8ff 84 void HAL_COMPEx_EnableVREFINT(void)
bogdanm 0:9b334a45a8ff 85 {
bogdanm 0:9b334a45a8ff 86 /* Enable the Buffer for the COMP by setting EN_VREFINT bit and the ENBUFLP_VREFINT_COMP in the CFGR3 register */
bogdanm 0:9b334a45a8ff 87
bogdanm 0:9b334a45a8ff 88 SYSCFG->CFGR3 |= (SYSCFG_CFGR3_ENBUFLP_VREFINT_COMP | SYSCFG_CFGR3_EN_VREFINT);
bogdanm 0:9b334a45a8ff 89 }
bogdanm 0:9b334a45a8ff 90
bogdanm 0:9b334a45a8ff 91 /**
bogdanm 0:9b334a45a8ff 92 * @brief Disables the Buffer Vrefint for the COMP.
bogdanm 0:9b334a45a8ff 93 * @note This is functional only if the LOCK bit is not set
bogdanm 0:9b334a45a8ff 94 * @retval None
bogdanm 0:9b334a45a8ff 95 */
bogdanm 0:9b334a45a8ff 96 void HAL_COMPEx_DisableVREFINT(void)
bogdanm 0:9b334a45a8ff 97 {
bogdanm 0:9b334a45a8ff 98 /* Disable the Vrefint by resetting ENBUFLP_BGAP_COMP bit and the EN_VREFINT bit in the CFGR3 register */
bogdanm 0:9b334a45a8ff 99
bogdanm 0:9b334a45a8ff 100 SYSCFG->CFGR3 &= (uint32_t)~((uint32_t)(SYSCFG_CFGR3_ENBUFLP_VREFINT_COMP | SYSCFG_CFGR3_EN_VREFINT));
bogdanm 0:9b334a45a8ff 101 }
bogdanm 0:9b334a45a8ff 102
bogdanm 0:9b334a45a8ff 103 /**
bogdanm 0:9b334a45a8ff 104 * @}
bogdanm 0:9b334a45a8ff 105 */
bogdanm 0:9b334a45a8ff 106
bogdanm 0:9b334a45a8ff 107 /**
bogdanm 0:9b334a45a8ff 108 * @}
bogdanm 0:9b334a45a8ff 109 */
bogdanm 0:9b334a45a8ff 110
bogdanm 0:9b334a45a8ff 111
bogdanm 0:9b334a45a8ff 112 #endif /* HAL_COMP_MODULE_ENABLED */
bogdanm 0:9b334a45a8ff 113 /**
bogdanm 0:9b334a45a8ff 114 * @}
bogdanm 0:9b334a45a8ff 115 */
bogdanm 0:9b334a45a8ff 116
bogdanm 0:9b334a45a8ff 117 /**
bogdanm 0:9b334a45a8ff 118 * @}
bogdanm 0:9b334a45a8ff 119 */
bogdanm 0:9b334a45a8ff 120 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/