en 129 / mbed-dev

fix LPC812 PWM

Dependents:   IR_LED_Send

Fork of mbed-dev by mbed official

targets/cmsis/TARGET_STM/TARGET_STM32F4/stm32f4xx_hal_i2c_ex.c@129:2e517c56bcfb, 2016-05-16 (annotated)

Committer:
nameless129
Date:
Mon May 16 16:50:30 2016 +0000
Revision:
129:2e517c56bcfb
Parent:
19:112740acecfa 
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 stm32f4xx_hal_i2c_ex.c
bogdanm 0:9b334a45a8ff 4 * @author MCD Application Team
mbed_official 19:112740acecfa 5 * @version V1.4.1
mbed_official 19:112740acecfa 6 * @date 09-October-2015
bogdanm 0:9b334a45a8ff 7 * @brief I2C Extension HAL module driver.
bogdanm 0:9b334a45a8ff 8 * This file provides firmware functions to manage the following
bogdanm 0:9b334a45a8ff 9 * functionalities of I2C extension peripheral:
bogdanm 0:9b334a45a8ff 10 * + Extension features functions
bogdanm 0:9b334a45a8ff 11 *
bogdanm 0:9b334a45a8ff 12 @verbatim
bogdanm 0:9b334a45a8ff 13 ==============================================================================
bogdanm 0:9b334a45a8ff 14 ##### I2C peripheral extension features #####
bogdanm 0:9b334a45a8ff 15 ==============================================================================
bogdanm 0:9b334a45a8ff 16
bogdanm 0:9b334a45a8ff 17 [..] Comparing to other previous devices, the I2C interface for STM32F427xx/437xx/
bogdanm 0:9b334a45a8ff 18 429xx/439xx devices contains the following additional features :
bogdanm 0:9b334a45a8ff 19
bogdanm 0:9b334a45a8ff 20 (+) Possibility to disable or enable Analog Noise Filter
bogdanm 0:9b334a45a8ff 21 (+) Use of a configured Digital Noise Filter
bogdanm 0:9b334a45a8ff 22
bogdanm 0:9b334a45a8ff 23 ##### How to use this driver #####
bogdanm 0:9b334a45a8ff 24 ==============================================================================
bogdanm 0:9b334a45a8ff 25 [..] This driver provides functions to configure Noise Filter
bogdanm 0:9b334a45a8ff 26 (#) Configure I2C Analog noise filter using the function HAL_I2C_AnalogFilter_Config()
bogdanm 0:9b334a45a8ff 27 (#) Configure I2C Digital noise filter using the function HAL_I2C_DigitalFilter_Config()
bogdanm 0:9b334a45a8ff 28
bogdanm 0:9b334a45a8ff 29 @endverbatim
bogdanm 0:9b334a45a8ff 30 ******************************************************************************
bogdanm 0:9b334a45a8ff 31 * @attention
bogdanm 0:9b334a45a8ff 32 *
bogdanm 0:9b334a45a8ff 33 * <h2><center>&copy; COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
bogdanm 0:9b334a45a8ff 34 *
bogdanm 0:9b334a45a8ff 35 * Redistribution and use in source and binary forms, with or without modification,
bogdanm 0:9b334a45a8ff 36 * are permitted provided that the following conditions are met:
bogdanm 0:9b334a45a8ff 37 * 1. Redistributions of source code must retain the above copyright notice,
bogdanm 0:9b334a45a8ff 38 * this list of conditions and the following disclaimer.
bogdanm 0:9b334a45a8ff 39 * 2. Redistributions in binary form must reproduce the above copyright notice,
bogdanm 0:9b334a45a8ff 40 * this list of conditions and the following disclaimer in the documentation
bogdanm 0:9b334a45a8ff 41 * and/or other materials provided with the distribution.
bogdanm 0:9b334a45a8ff 42 * 3. Neither the name of STMicroelectronics nor the names of its contributors
bogdanm 0:9b334a45a8ff 43 * may be used to endorse or promote products derived from this software
bogdanm 0:9b334a45a8ff 44 * without specific prior written permission.
bogdanm 0:9b334a45a8ff 45 *
bogdanm 0:9b334a45a8ff 46 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
bogdanm 0:9b334a45a8ff 47 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
bogdanm 0:9b334a45a8ff 48 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
bogdanm 0:9b334a45a8ff 49 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
bogdanm 0:9b334a45a8ff 50 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
bogdanm 0:9b334a45a8ff 51 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
bogdanm 0:9b334a45a8ff 52 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
bogdanm 0:9b334a45a8ff 53 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
bogdanm 0:9b334a45a8ff 54 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
bogdanm 0:9b334a45a8ff 55 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
bogdanm 0:9b334a45a8ff 56 *
bogdanm 0:9b334a45a8ff 57 ******************************************************************************
bogdanm 0:9b334a45a8ff 58 */
bogdanm 0:9b334a45a8ff 59
bogdanm 0:9b334a45a8ff 60 /* Includes ------------------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 61 #include "stm32f4xx_hal.h"
bogdanm 0:9b334a45a8ff 62
bogdanm 0:9b334a45a8ff 63 /** @addtogroup STM32F4xx_HAL_Driver
bogdanm 0:9b334a45a8ff 64 * @{
bogdanm 0:9b334a45a8ff 65 */
bogdanm 0:9b334a45a8ff 66
bogdanm 0:9b334a45a8ff 67 /** @defgroup I2CEx I2CEx
bogdanm 0:9b334a45a8ff 68 * @brief I2C HAL module driver
bogdanm 0:9b334a45a8ff 69 * @{
bogdanm 0:9b334a45a8ff 70 */
bogdanm 0:9b334a45a8ff 71
bogdanm 0:9b334a45a8ff 72 #ifdef HAL_I2C_MODULE_ENABLED
bogdanm 0:9b334a45a8ff 73
bogdanm 0:9b334a45a8ff 74 #if defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx) || defined(STM32F439xx) ||\
mbed_official 19:112740acecfa 75 defined(STM32F401xC) || defined(STM32F401xE) || defined(STM32F411xE) || defined(STM32F446xx) ||\
mbed_official 19:112740acecfa 76 defined(STM32F469xx) || defined(STM32F479xx)
bogdanm 0:9b334a45a8ff 77 /* Private typedef -----------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 78 /* Private define ------------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 79 /* Private macro -------------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 80 /* Private variables ---------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 81 /* Private function prototypes -----------------------------------------------*/
bogdanm 0:9b334a45a8ff 82 /* Exported functions --------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 83 /** @defgroup I2CEx_Exported_Functions I2C Exported Functions
bogdanm 0:9b334a45a8ff 84 * @{
bogdanm 0:9b334a45a8ff 85 */
bogdanm 0:9b334a45a8ff 86
bogdanm 0:9b334a45a8ff 87
bogdanm 0:9b334a45a8ff 88 /** @defgroup I2CEx_Exported_Functions_Group1 Extension features functions
bogdanm 0:9b334a45a8ff 89 * @brief Extension features functions
bogdanm 0:9b334a45a8ff 90 *
bogdanm 0:9b334a45a8ff 91 @verbatim
bogdanm 0:9b334a45a8ff 92 ===============================================================================
bogdanm 0:9b334a45a8ff 93 ##### Extension features functions #####
bogdanm 0:9b334a45a8ff 94 ===============================================================================
bogdanm 0:9b334a45a8ff 95 [..] This section provides functions allowing to:
bogdanm 0:9b334a45a8ff 96 (+) Configure Noise Filters
bogdanm 0:9b334a45a8ff 97
bogdanm 0:9b334a45a8ff 98 @endverbatim
bogdanm 0:9b334a45a8ff 99 * @{
bogdanm 0:9b334a45a8ff 100 */
bogdanm 0:9b334a45a8ff 101
bogdanm 0:9b334a45a8ff 102 /**
bogdanm 0:9b334a45a8ff 103 * @brief Configures I2C Analog noise filter.
bogdanm 0:9b334a45a8ff 104 * @param hi2c: pointer to a I2C_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 105 * the configuration information for the specified I2Cx peripheral.
bogdanm 0:9b334a45a8ff 106 * @param AnalogFilter: new state of the Analog filter.
bogdanm 0:9b334a45a8ff 107 * @retval HAL status
bogdanm 0:9b334a45a8ff 108 */
bogdanm 0:9b334a45a8ff 109 HAL_StatusTypeDef HAL_I2CEx_ConfigAnalogFilter(I2C_HandleTypeDef *hi2c, uint32_t AnalogFilter)
bogdanm 0:9b334a45a8ff 110 {
bogdanm 0:9b334a45a8ff 111 uint32_t tmp = 0;
bogdanm 0:9b334a45a8ff 112
bogdanm 0:9b334a45a8ff 113 /* Check the parameters */
bogdanm 0:9b334a45a8ff 114 assert_param(IS_I2C_ALL_INSTANCE(hi2c->Instance));
bogdanm 0:9b334a45a8ff 115 assert_param(IS_I2C_ANALOG_FILTER(AnalogFilter));
bogdanm 0:9b334a45a8ff 116
bogdanm 0:9b334a45a8ff 117 tmp = hi2c->State;
bogdanm 0:9b334a45a8ff 118 if((tmp == HAL_I2C_STATE_BUSY) || (tmp == HAL_I2C_STATE_BUSY_TX) || (tmp == HAL_I2C_STATE_BUSY_RX))
bogdanm 0:9b334a45a8ff 119 {
bogdanm 0:9b334a45a8ff 120 return HAL_BUSY;
bogdanm 0:9b334a45a8ff 121 }
bogdanm 0:9b334a45a8ff 122
bogdanm 0:9b334a45a8ff 123 hi2c->State = HAL_I2C_STATE_BUSY;
bogdanm 0:9b334a45a8ff 124
bogdanm 0:9b334a45a8ff 125 /* Disable the selected I2C peripheral */
bogdanm 0:9b334a45a8ff 126 __HAL_I2C_DISABLE(hi2c);
bogdanm 0:9b334a45a8ff 127
bogdanm 0:9b334a45a8ff 128 /* Reset I2Cx ANOFF bit */
bogdanm 0:9b334a45a8ff 129 hi2c->Instance->FLTR &= ~(I2C_FLTR_ANOFF);
bogdanm 0:9b334a45a8ff 130
bogdanm 0:9b334a45a8ff 131 /* Disable the analog filter */
bogdanm 0:9b334a45a8ff 132 hi2c->Instance->FLTR |= AnalogFilter;
bogdanm 0:9b334a45a8ff 133
bogdanm 0:9b334a45a8ff 134 __HAL_I2C_ENABLE(hi2c);
bogdanm 0:9b334a45a8ff 135
bogdanm 0:9b334a45a8ff 136 hi2c->State = HAL_I2C_STATE_READY;
bogdanm 0:9b334a45a8ff 137
bogdanm 0:9b334a45a8ff 138 return HAL_OK;
bogdanm 0:9b334a45a8ff 139 }
bogdanm 0:9b334a45a8ff 140
bogdanm 0:9b334a45a8ff 141 /**
bogdanm 0:9b334a45a8ff 142 * @brief Configures I2C Digital noise filter.
bogdanm 0:9b334a45a8ff 143 * @param hi2c: pointer to a I2C_HandleTypeDef structure that contains
bogdanm 0:9b334a45a8ff 144 * the configuration information for the specified I2Cx peripheral.
bogdanm 0:9b334a45a8ff 145 * @param DigitalFilter: Coefficient of digital noise filter between 0x00 and 0x0F.
bogdanm 0:9b334a45a8ff 146 * @retval HAL status
bogdanm 0:9b334a45a8ff 147 */
bogdanm 0:9b334a45a8ff 148 HAL_StatusTypeDef HAL_I2CEx_ConfigDigitalFilter(I2C_HandleTypeDef *hi2c, uint32_t DigitalFilter)
bogdanm 0:9b334a45a8ff 149 {
bogdanm 0:9b334a45a8ff 150 uint16_t tmpreg = 0;
bogdanm 0:9b334a45a8ff 151 uint32_t tmp = 0;
bogdanm 0:9b334a45a8ff 152
bogdanm 0:9b334a45a8ff 153 /* Check the parameters */
bogdanm 0:9b334a45a8ff 154 assert_param(IS_I2C_ALL_INSTANCE(hi2c->Instance));
bogdanm 0:9b334a45a8ff 155 assert_param(IS_I2C_DIGITAL_FILTER(DigitalFilter));
bogdanm 0:9b334a45a8ff 156
bogdanm 0:9b334a45a8ff 157 tmp = hi2c->State;
bogdanm 0:9b334a45a8ff 158 if((tmp == HAL_I2C_STATE_BUSY) || (tmp == HAL_I2C_STATE_BUSY_TX) || (tmp == HAL_I2C_STATE_BUSY_RX))
bogdanm 0:9b334a45a8ff 159 {
bogdanm 0:9b334a45a8ff 160 return HAL_BUSY;
bogdanm 0:9b334a45a8ff 161 }
bogdanm 0:9b334a45a8ff 162
bogdanm 0:9b334a45a8ff 163 hi2c->State = HAL_I2C_STATE_BUSY;
bogdanm 0:9b334a45a8ff 164
bogdanm 0:9b334a45a8ff 165 /* Disable the selected I2C peripheral */
bogdanm 0:9b334a45a8ff 166 __HAL_I2C_DISABLE(hi2c);
bogdanm 0:9b334a45a8ff 167
bogdanm 0:9b334a45a8ff 168 /* Get the old register value */
bogdanm 0:9b334a45a8ff 169 tmpreg = hi2c->Instance->FLTR;
bogdanm 0:9b334a45a8ff 170
bogdanm 0:9b334a45a8ff 171 /* Reset I2Cx DNF bit [3:0] */
bogdanm 0:9b334a45a8ff 172 tmpreg &= ~(I2C_FLTR_DNF);
bogdanm 0:9b334a45a8ff 173
bogdanm 0:9b334a45a8ff 174 /* Set I2Cx DNF coefficient */
bogdanm 0:9b334a45a8ff 175 tmpreg |= DigitalFilter;
bogdanm 0:9b334a45a8ff 176
bogdanm 0:9b334a45a8ff 177 /* Store the new register value */
bogdanm 0:9b334a45a8ff 178 hi2c->Instance->FLTR = tmpreg;
bogdanm 0:9b334a45a8ff 179
bogdanm 0:9b334a45a8ff 180 __HAL_I2C_ENABLE(hi2c);
bogdanm 0:9b334a45a8ff 181
bogdanm 0:9b334a45a8ff 182 hi2c->State = HAL_I2C_STATE_READY;
bogdanm 0:9b334a45a8ff 183
bogdanm 0:9b334a45a8ff 184 return HAL_OK;
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 */
mbed_official 19:112740acecfa 194 #endif /* STM32F427xx || STM32F429xx || STM32F437xx || STM32F439xx || STM32F401xC ||\
mbed_official 19:112740acecfa 195 STM32F401xE || STM32F446xx || STM32F469xx || STM32F479xx */
bogdanm 0:9b334a45a8ff 196
bogdanm 0:9b334a45a8ff 197 #endif /* HAL_I2C_MODULE_ENABLED */
bogdanm 0:9b334a45a8ff 198 /**
bogdanm 0:9b334a45a8ff 199 * @}
bogdanm 0:9b334a45a8ff 200 */
bogdanm 0:9b334a45a8ff 201
bogdanm 0:9b334a45a8ff 202 /**
bogdanm 0:9b334a45a8ff 203 * @}
bogdanm 0:9b334a45a8ff 204 */
bogdanm 0:9b334a45a8ff 205
bogdanm 0:9b334a45a8ff 206 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/