en 129 / mbed-dev

fix LPC812 PWM

Dependents:   IR_LED_Send

Fork of mbed-dev by mbed official

targets/cmsis/TARGET_STM/TARGET_STM32F0/stm32f0xx_hal_adc_ex.c@129:2e517c56bcfb, 2016-05-16 (annotated)

Committer:
nameless129
Date:
Mon May 16 16:50:30 2016 +0000
Revision:
129:2e517c56bcfb
Parent:
0:9b334a45a8ff 
PWM Fix:Duty 0%??H???????????????

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_adc_ex.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 This file provides firmware functions to manage the following
bogdanm 0:9b334a45a8ff 8 * functionalities of the Analog to Digital Convertor (ADC)
bogdanm 0:9b334a45a8ff 9 * peripheral:
bogdanm 0:9b334a45a8ff 10 * + Operation functions
bogdanm 0:9b334a45a8ff 11 * ++ Calibration (ADC automatic self-calibration)
bogdanm 0:9b334a45a8ff 12 * Other functions (generic functions) are available in file
bogdanm 0:9b334a45a8ff 13 * "stm32l1xx_hal_adc.c".
bogdanm 0:9b334a45a8ff 14 *
bogdanm 0:9b334a45a8ff 15 @verbatim
bogdanm 0:9b334a45a8ff 16 [..]
bogdanm 0:9b334a45a8ff 17 (@) Sections "ADC peripheral features" and "How to use this driver" are
bogdanm 0:9b334a45a8ff 18 available in file of generic functions "stm32l1xx_hal_adc.c".
bogdanm 0:9b334a45a8ff 19 [..]
bogdanm 0:9b334a45a8ff 20 @endverbatim
bogdanm 0:9b334a45a8ff 21 ******************************************************************************
bogdanm 0:9b334a45a8ff 22 * @attention
bogdanm 0:9b334a45a8ff 23 *
bogdanm 0:9b334a45a8ff 24 * <h2><center>&copy; COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
bogdanm 0:9b334a45a8ff 25 *
bogdanm 0:9b334a45a8ff 26 * Redistribution and use in source and binary forms, with or without modification,
bogdanm 0:9b334a45a8ff 27 * are permitted provided that the following conditions are met:
bogdanm 0:9b334a45a8ff 28 * 1. Redistributions of source code must retain the above copyright notice,
bogdanm 0:9b334a45a8ff 29 * this list of conditions and the following disclaimer.
bogdanm 0:9b334a45a8ff 30 * 2. Redistributions in binary form must reproduce the above copyright notice,
bogdanm 0:9b334a45a8ff 31 * this list of conditions and the following disclaimer in the documentation
bogdanm 0:9b334a45a8ff 32 * and/or other materials provided with the distribution.
bogdanm 0:9b334a45a8ff 33 * 3. Neither the name of STMicroelectronics nor the names of its contributors
bogdanm 0:9b334a45a8ff 34 * may be used to endorse or promote products derived from this software
bogdanm 0:9b334a45a8ff 35 * without specific prior written permission.
bogdanm 0:9b334a45a8ff 36 *
bogdanm 0:9b334a45a8ff 37 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
bogdanm 0:9b334a45a8ff 38 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
bogdanm 0:9b334a45a8ff 39 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
bogdanm 0:9b334a45a8ff 40 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
bogdanm 0:9b334a45a8ff 41 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
bogdanm 0:9b334a45a8ff 42 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
bogdanm 0:9b334a45a8ff 43 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
bogdanm 0:9b334a45a8ff 44 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
bogdanm 0:9b334a45a8ff 45 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
bogdanm 0:9b334a45a8ff 46 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
bogdanm 0:9b334a45a8ff 47 *
bogdanm 0:9b334a45a8ff 48 ******************************************************************************
bogdanm 0:9b334a45a8ff 49 */
bogdanm 0:9b334a45a8ff 50
bogdanm 0:9b334a45a8ff 51 /* Includes ------------------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 52 #include "stm32f0xx_hal.h"
bogdanm 0:9b334a45a8ff 53
bogdanm 0:9b334a45a8ff 54 /** @addtogroup STM32F0xx_HAL_Driver
bogdanm 0:9b334a45a8ff 55 * @{
bogdanm 0:9b334a45a8ff 56 */
bogdanm 0:9b334a45a8ff 57
bogdanm 0:9b334a45a8ff 58 /** @defgroup ADCEx ADCEx
bogdanm 0:9b334a45a8ff 59 * @brief ADC HAL module driver
bogdanm 0:9b334a45a8ff 60 * @{
bogdanm 0:9b334a45a8ff 61 */
bogdanm 0:9b334a45a8ff 62
bogdanm 0:9b334a45a8ff 63 #ifdef HAL_ADC_MODULE_ENABLED
bogdanm 0:9b334a45a8ff 64
bogdanm 0:9b334a45a8ff 65 /* Private typedef -----------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 66 /* Private define ------------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 67 /** @defgroup ADCEx_Private_Constants ADCEx Private Constants
bogdanm 0:9b334a45a8ff 68 * @{
bogdanm 0:9b334a45a8ff 69 */
bogdanm 0:9b334a45a8ff 70
bogdanm 0:9b334a45a8ff 71 /* Fixed timeout values for ADC calibration, enable settling time, disable */
bogdanm 0:9b334a45a8ff 72 /* settling time. */
bogdanm 0:9b334a45a8ff 73 /* Values defined to be higher than worst cases: low clock frequency, */
bogdanm 0:9b334a45a8ff 74 /* maximum prescaler. */
bogdanm 0:9b334a45a8ff 75 /* Ex of profile low frequency : Clock source at 0.1 MHz, ADC clock */
bogdanm 0:9b334a45a8ff 76 /* prescaler 4. */
bogdanm 0:9b334a45a8ff 77 /* Unit: ms */
bogdanm 0:9b334a45a8ff 78 #define ADC_DISABLE_TIMEOUT 2
bogdanm 0:9b334a45a8ff 79 #define ADC_CALIBRATION_TIMEOUT 2
bogdanm 0:9b334a45a8ff 80 /**
bogdanm 0:9b334a45a8ff 81 * @}
bogdanm 0:9b334a45a8ff 82 */
bogdanm 0:9b334a45a8ff 83
bogdanm 0:9b334a45a8ff 84 /* Private macros -------------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 85 /* Private variables ---------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 86 /* Private function prototypes -----------------------------------------------*/
bogdanm 0:9b334a45a8ff 87 /* Private functions ---------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 88
bogdanm 0:9b334a45a8ff 89 /** @defgroup ADCEx_Exported_Functions ADCEx Exported Functions
bogdanm 0:9b334a45a8ff 90 * @{
bogdanm 0:9b334a45a8ff 91 */
bogdanm 0:9b334a45a8ff 92
bogdanm 0:9b334a45a8ff 93 /** @defgroup ADCEx_Exported_Functions_Group1 Extended Initialization/de-initialization functions
bogdanm 0:9b334a45a8ff 94 * @brief Extended Initialization and Configuration functions
bogdanm 0:9b334a45a8ff 95 *
bogdanm 0:9b334a45a8ff 96 @verbatim
bogdanm 0:9b334a45a8ff 97 ===============================================================================
bogdanm 0:9b334a45a8ff 98 ##### IO operation functions #####
bogdanm 0:9b334a45a8ff 99 ===============================================================================
bogdanm 0:9b334a45a8ff 100 [..] This section provides functions allowing to:
bogdanm 0:9b334a45a8ff 101 (+) Perform the ADC calibration.
bogdanm 0:9b334a45a8ff 102 @endverbatim
bogdanm 0:9b334a45a8ff 103 * @{
bogdanm 0:9b334a45a8ff 104 */
bogdanm 0:9b334a45a8ff 105
bogdanm 0:9b334a45a8ff 106 /**
bogdanm 0:9b334a45a8ff 107 * @brief Perform an ADC automatic self-calibration
bogdanm 0:9b334a45a8ff 108 * Calibration prerequisite: ADC must be disabled (execute this
bogdanm 0:9b334a45a8ff 109 * function before HAL_ADC_Start() or after HAL_ADC_Stop() ).
bogdanm 0:9b334a45a8ff 110 * @note Calibration factor can be read after calibration, using function
bogdanm 0:9b334a45a8ff 111 * HAL_ADC_GetValue() (value on 7 bits: from DR[6;0]).
bogdanm 0:9b334a45a8ff 112 * @param hadc: ADC handle
bogdanm 0:9b334a45a8ff 113 * @retval HAL status
bogdanm 0:9b334a45a8ff 114 */
bogdanm 0:9b334a45a8ff 115 HAL_StatusTypeDef HAL_ADCEx_Calibration_Start(ADC_HandleTypeDef* hadc)
bogdanm 0:9b334a45a8ff 116 {
bogdanm 0:9b334a45a8ff 117 HAL_StatusTypeDef tmp_hal_status = HAL_OK;
bogdanm 0:9b334a45a8ff 118 uint32_t tickstart=0;
bogdanm 0:9b334a45a8ff 119
bogdanm 0:9b334a45a8ff 120 /* Check the parameters */
bogdanm 0:9b334a45a8ff 121 assert_param(IS_ADC_ALL_INSTANCE(hadc->Instance));
bogdanm 0:9b334a45a8ff 122
bogdanm 0:9b334a45a8ff 123 /* Process locked */
bogdanm 0:9b334a45a8ff 124 __HAL_LOCK(hadc);
bogdanm 0:9b334a45a8ff 125
bogdanm 0:9b334a45a8ff 126 /* Calibration prerequisite: ADC must be disabled. */
bogdanm 0:9b334a45a8ff 127 if (ADC_IS_ENABLE(hadc) == RESET)
bogdanm 0:9b334a45a8ff 128 {
bogdanm 0:9b334a45a8ff 129 /* Set ADC state */
bogdanm 0:9b334a45a8ff 130 ADC_STATE_CLR_SET(hadc->State,
bogdanm 0:9b334a45a8ff 131 HAL_ADC_STATE_REG_BUSY,
bogdanm 0:9b334a45a8ff 132 HAL_ADC_STATE_BUSY_INTERNAL);
bogdanm 0:9b334a45a8ff 133
bogdanm 0:9b334a45a8ff 134 /* Start ADC calibration */
bogdanm 0:9b334a45a8ff 135 hadc->Instance->CR |= ADC_CR_ADCAL;
bogdanm 0:9b334a45a8ff 136
bogdanm 0:9b334a45a8ff 137 tickstart = HAL_GetTick();
bogdanm 0:9b334a45a8ff 138
bogdanm 0:9b334a45a8ff 139 /* Wait for calibration completion */
bogdanm 0:9b334a45a8ff 140 while(HAL_IS_BIT_SET(hadc->Instance->CR, ADC_CR_ADCAL))
bogdanm 0:9b334a45a8ff 141 {
bogdanm 0:9b334a45a8ff 142 if((HAL_GetTick() - tickstart) > ADC_CALIBRATION_TIMEOUT)
bogdanm 0:9b334a45a8ff 143 {
bogdanm 0:9b334a45a8ff 144 /* Update ADC state machine to error */
bogdanm 0:9b334a45a8ff 145 ADC_STATE_CLR_SET(hadc->State,
bogdanm 0:9b334a45a8ff 146 HAL_ADC_STATE_BUSY_INTERNAL,
bogdanm 0:9b334a45a8ff 147 HAL_ADC_STATE_ERROR_INTERNAL);
bogdanm 0:9b334a45a8ff 148
bogdanm 0:9b334a45a8ff 149 /* Process unlocked */
bogdanm 0:9b334a45a8ff 150 __HAL_UNLOCK(hadc);
bogdanm 0:9b334a45a8ff 151
bogdanm 0:9b334a45a8ff 152 return HAL_ERROR;
bogdanm 0:9b334a45a8ff 153 }
bogdanm 0:9b334a45a8ff 154 }
bogdanm 0:9b334a45a8ff 155
bogdanm 0:9b334a45a8ff 156 /* Set ADC state */
bogdanm 0:9b334a45a8ff 157 ADC_STATE_CLR_SET(hadc->State,
bogdanm 0:9b334a45a8ff 158 HAL_ADC_STATE_BUSY_INTERNAL,
bogdanm 0:9b334a45a8ff 159 HAL_ADC_STATE_READY);
bogdanm 0:9b334a45a8ff 160 }
bogdanm 0:9b334a45a8ff 161 else
bogdanm 0:9b334a45a8ff 162 {
bogdanm 0:9b334a45a8ff 163 /* Update ADC state machine to error */
bogdanm 0:9b334a45a8ff 164 SET_BIT(hadc->State, HAL_ADC_STATE_ERROR_CONFIG);
bogdanm 0:9b334a45a8ff 165
bogdanm 0:9b334a45a8ff 166 tmp_hal_status = HAL_ERROR;
bogdanm 0:9b334a45a8ff 167 }
bogdanm 0:9b334a45a8ff 168
bogdanm 0:9b334a45a8ff 169 /* Process unlocked */
bogdanm 0:9b334a45a8ff 170 __HAL_UNLOCK(hadc);
bogdanm 0:9b334a45a8ff 171
bogdanm 0:9b334a45a8ff 172 /* Return function status */
bogdanm 0:9b334a45a8ff 173 return tmp_hal_status;
bogdanm 0:9b334a45a8ff 174 }
bogdanm 0:9b334a45a8ff 175
bogdanm 0:9b334a45a8ff 176 /**
bogdanm 0:9b334a45a8ff 177 * @}
bogdanm 0:9b334a45a8ff 178 */
bogdanm 0:9b334a45a8ff 179
bogdanm 0:9b334a45a8ff 180 /**
bogdanm 0:9b334a45a8ff 181 * @}
bogdanm 0:9b334a45a8ff 182 */
bogdanm 0:9b334a45a8ff 183
bogdanm 0:9b334a45a8ff 184 #endif /* HAL_ADC_MODULE_ENABLED */
bogdanm 0:9b334a45a8ff 185 /**
bogdanm 0:9b334a45a8ff 186 * @}
bogdanm 0:9b334a45a8ff 187 */
bogdanm 0:9b334a45a8ff 188
bogdanm 0:9b334a45a8ff 189 /**
bogdanm 0:9b334a45a8ff 190 * @}
bogdanm 0:9b334a45a8ff 191 */
bogdanm 0:9b334a45a8ff 192
bogdanm 0:9b334a45a8ff 193 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/