Johannes Stratmann / mbed-dev

added prescaler for 16 bit pwm in LPC1347 target

Fork of mbed-dev by mbed official

targets/cmsis/TARGET_STM/TARGET_STM32F7/stm32f7xx_hal_i2c_ex.c@147:ba84b7dc41a7, 2016-09-10 (annotated)

Committer:
JojoS
Date:
Sat Sep 10 15:32:04 2016 +0000
Revision:
147:ba84b7dc41a7
Parent:
144:ef7eb2e8f9f7 
added prescaler for 16 bit timers (solution as in LPC11xx), default prescaler 31 for max 28 ms period time

Who changed what in which revision?

UserRevisionLine numberNew contents of line
<> 144:ef7eb2e8f9f7 1 /**
<> 144:ef7eb2e8f9f7 2 ******************************************************************************
<> 144:ef7eb2e8f9f7 3 * @file stm32f7xx_hal_i2c_ex.c
<> 144:ef7eb2e8f9f7 4 * @author MCD Application Team
<> 144:ef7eb2e8f9f7 5 * @version V1.1.0
<> 144:ef7eb2e8f9f7 6 * @date 22-April-2016
<> 144:ef7eb2e8f9f7 7 * @brief I2C Extended HAL module driver.
<> 144:ef7eb2e8f9f7 8 * This file provides firmware functions to manage the following
<> 144:ef7eb2e8f9f7 9 * functionalities of I2C Extended peripheral:
<> 144:ef7eb2e8f9f7 10 * + Extended features functions
<> 144:ef7eb2e8f9f7 11 *
<> 144:ef7eb2e8f9f7 12 @verbatim
<> 144:ef7eb2e8f9f7 13 ==============================================================================
<> 144:ef7eb2e8f9f7 14 ##### I2C peripheral Extended features #####
<> 144:ef7eb2e8f9f7 15 ==============================================================================
<> 144:ef7eb2e8f9f7 16
<> 144:ef7eb2e8f9f7 17 [..] Comparing to other previous devices, the I2C interface for STM32F7XX
<> 144:ef7eb2e8f9f7 18 devices contains the following additional features
<> 144:ef7eb2e8f9f7 19
<> 144:ef7eb2e8f9f7 20 (+) Possibility to disable or enable Analog Noise Filter
<> 144:ef7eb2e8f9f7 21 (+) Use of a configured Digital Noise Filter
<> 144:ef7eb2e8f9f7 22 (+) Disable or enable Fast Mode Plus (available only for STM32F76xxx/STM32F77xxx
<> 144:ef7eb2e8f9f7 23 devices)
<> 144:ef7eb2e8f9f7 24
<> 144:ef7eb2e8f9f7 25 ##### How to use this driver #####
<> 144:ef7eb2e8f9f7 26 ==============================================================================
<> 144:ef7eb2e8f9f7 27 [..] This driver provides functions to:
<> 144:ef7eb2e8f9f7 28 (#) Configure I2C Analog noise filter using the function HAL_I2CEx_ConfigAnalogFilter()
<> 144:ef7eb2e8f9f7 29 (#) Configure I2C Digital noise filter using the function HAL_I2CEx_ConfigDigitalFilter()
<> 144:ef7eb2e8f9f7 30 (#) Configure the enable or disable of fast mode plus driving capability using the functions :
<> 144:ef7eb2e8f9f7 31 (++) HAL_I2CEx_EnableFastModePlus()
<> 144:ef7eb2e8f9f7 32 (++) HAL_I2CEx_DisbleFastModePlus()
<> 144:ef7eb2e8f9f7 33 @endverbatim
<> 144:ef7eb2e8f9f7 34 ******************************************************************************
<> 144:ef7eb2e8f9f7 35 * @attention
<> 144:ef7eb2e8f9f7 36 *
<> 144:ef7eb2e8f9f7 37 * <h2><center>&copy; COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
<> 144:ef7eb2e8f9f7 38 *
<> 144:ef7eb2e8f9f7 39 * Redistribution and use in source and binary forms, with or without modification,
<> 144:ef7eb2e8f9f7 40 * are permitted provided that the following conditions are met:
<> 144:ef7eb2e8f9f7 41 * 1. Redistributions of source code must retain the above copyright notice,
<> 144:ef7eb2e8f9f7 42 * this list of conditions and the following disclaimer.
<> 144:ef7eb2e8f9f7 43 * 2. Redistributions in binary form must reproduce the above copyright notice,
<> 144:ef7eb2e8f9f7 44 * this list of conditions and the following disclaimer in the documentation
<> 144:ef7eb2e8f9f7 45 * and/or other materials provided with the distribution.
<> 144:ef7eb2e8f9f7 46 * 3. Neither the name of STMicroelectronics nor the names of its contributors
<> 144:ef7eb2e8f9f7 47 * may be used to endorse or promote products derived from this software
<> 144:ef7eb2e8f9f7 48 * without specific prior written permission.
<> 144:ef7eb2e8f9f7 49 *
<> 144:ef7eb2e8f9f7 50 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
<> 144:ef7eb2e8f9f7 51 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
<> 144:ef7eb2e8f9f7 52 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
<> 144:ef7eb2e8f9f7 53 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
<> 144:ef7eb2e8f9f7 54 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
<> 144:ef7eb2e8f9f7 55 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
<> 144:ef7eb2e8f9f7 56 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
<> 144:ef7eb2e8f9f7 57 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
<> 144:ef7eb2e8f9f7 58 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
<> 144:ef7eb2e8f9f7 59 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
<> 144:ef7eb2e8f9f7 60 *
<> 144:ef7eb2e8f9f7 61 ******************************************************************************
<> 144:ef7eb2e8f9f7 62 */
<> 144:ef7eb2e8f9f7 63
<> 144:ef7eb2e8f9f7 64 /* Includes ------------------------------------------------------------------*/
<> 144:ef7eb2e8f9f7 65 #include "stm32f7xx_hal.h"
<> 144:ef7eb2e8f9f7 66
<> 144:ef7eb2e8f9f7 67 /** @addtogroup STM32F7xx_HAL_Driver
<> 144:ef7eb2e8f9f7 68 * @{
<> 144:ef7eb2e8f9f7 69 */
<> 144:ef7eb2e8f9f7 70
<> 144:ef7eb2e8f9f7 71 /** @defgroup I2CEx I2C Extended HAL module driver
<> 144:ef7eb2e8f9f7 72 * @brief I2C Extended HAL module driver
<> 144:ef7eb2e8f9f7 73 * @{
<> 144:ef7eb2e8f9f7 74 */
<> 144:ef7eb2e8f9f7 75
<> 144:ef7eb2e8f9f7 76 #ifdef HAL_I2C_MODULE_ENABLED
<> 144:ef7eb2e8f9f7 77
<> 144:ef7eb2e8f9f7 78 /* Private typedef -----------------------------------------------------------*/
<> 144:ef7eb2e8f9f7 79 /* Private define ------------------------------------------------------------*/
<> 144:ef7eb2e8f9f7 80 /* Private macro -------------------------------------------------------------*/
<> 144:ef7eb2e8f9f7 81 /* Private variables ---------------------------------------------------------*/
<> 144:ef7eb2e8f9f7 82 /* Private function prototypes -----------------------------------------------*/
<> 144:ef7eb2e8f9f7 83 /* Private functions ---------------------------------------------------------*/
<> 144:ef7eb2e8f9f7 84
<> 144:ef7eb2e8f9f7 85 /** @defgroup I2CEx_Exported_Functions I2C Extended Exported Functions
<> 144:ef7eb2e8f9f7 86 * @{
<> 144:ef7eb2e8f9f7 87 */
<> 144:ef7eb2e8f9f7 88
<> 144:ef7eb2e8f9f7 89 /** @defgroup I2CEx_Exported_Functions_Group1 Extended features functions
<> 144:ef7eb2e8f9f7 90 * @brief Extended features functions
<> 144:ef7eb2e8f9f7 91 *
<> 144:ef7eb2e8f9f7 92 @verbatim
<> 144:ef7eb2e8f9f7 93 ===============================================================================
<> 144:ef7eb2e8f9f7 94 ##### Extended features functions #####
<> 144:ef7eb2e8f9f7 95 ===============================================================================
<> 144:ef7eb2e8f9f7 96 [..] This section provides functions allowing to:
<> 144:ef7eb2e8f9f7 97 (+) Configure Noise Filters
<> 144:ef7eb2e8f9f7 98 (+) Configure Fast Mode Plus
<> 144:ef7eb2e8f9f7 99
<> 144:ef7eb2e8f9f7 100 @endverbatim
<> 144:ef7eb2e8f9f7 101 * @{
<> 144:ef7eb2e8f9f7 102 */
<> 144:ef7eb2e8f9f7 103
<> 144:ef7eb2e8f9f7 104 /**
<> 144:ef7eb2e8f9f7 105 * @brief Configure I2C Analog noise filter.
<> 144:ef7eb2e8f9f7 106 * @param hi2c: Pointer to a I2C_HandleTypeDef structure that contains
<> 144:ef7eb2e8f9f7 107 * the configuration information for the specified I2Cx peripheral.
<> 144:ef7eb2e8f9f7 108 * @param AnalogFilter: New state of the Analog filter.
<> 144:ef7eb2e8f9f7 109 * @retval HAL status
<> 144:ef7eb2e8f9f7 110 */
<> 144:ef7eb2e8f9f7 111 HAL_StatusTypeDef HAL_I2CEx_ConfigAnalogFilter(I2C_HandleTypeDef *hi2c, uint32_t AnalogFilter)
<> 144:ef7eb2e8f9f7 112 {
<> 144:ef7eb2e8f9f7 113 /* Check the parameters */
<> 144:ef7eb2e8f9f7 114 assert_param(IS_I2C_ALL_INSTANCE(hi2c->Instance));
<> 144:ef7eb2e8f9f7 115 assert_param(IS_I2C_ANALOG_FILTER(AnalogFilter));
<> 144:ef7eb2e8f9f7 116
<> 144:ef7eb2e8f9f7 117 if(hi2c->State == HAL_I2C_STATE_READY)
<> 144:ef7eb2e8f9f7 118 {
<> 144:ef7eb2e8f9f7 119 /* Process Locked */
<> 144:ef7eb2e8f9f7 120 __HAL_LOCK(hi2c);
<> 144:ef7eb2e8f9f7 121
<> 144:ef7eb2e8f9f7 122 hi2c->State = HAL_I2C_STATE_BUSY;
<> 144:ef7eb2e8f9f7 123
<> 144:ef7eb2e8f9f7 124 /* Disable the selected I2C peripheral */
<> 144:ef7eb2e8f9f7 125 __HAL_I2C_DISABLE(hi2c);
<> 144:ef7eb2e8f9f7 126
<> 144:ef7eb2e8f9f7 127 /* Reset I2Cx ANOFF bit */
<> 144:ef7eb2e8f9f7 128 hi2c->Instance->CR1 &= ~(I2C_CR1_ANFOFF);
<> 144:ef7eb2e8f9f7 129
<> 144:ef7eb2e8f9f7 130 /* Set analog filter bit*/
<> 144:ef7eb2e8f9f7 131 hi2c->Instance->CR1 |= AnalogFilter;
<> 144:ef7eb2e8f9f7 132
<> 144:ef7eb2e8f9f7 133 __HAL_I2C_ENABLE(hi2c);
<> 144:ef7eb2e8f9f7 134
<> 144:ef7eb2e8f9f7 135 hi2c->State = HAL_I2C_STATE_READY;
<> 144:ef7eb2e8f9f7 136
<> 144:ef7eb2e8f9f7 137 /* Process Unlocked */
<> 144:ef7eb2e8f9f7 138 __HAL_UNLOCK(hi2c);
<> 144:ef7eb2e8f9f7 139
<> 144:ef7eb2e8f9f7 140 return HAL_OK;
<> 144:ef7eb2e8f9f7 141 }
<> 144:ef7eb2e8f9f7 142 else
<> 144:ef7eb2e8f9f7 143 {
<> 144:ef7eb2e8f9f7 144 return HAL_BUSY;
<> 144:ef7eb2e8f9f7 145 }
<> 144:ef7eb2e8f9f7 146 }
<> 144:ef7eb2e8f9f7 147
<> 144:ef7eb2e8f9f7 148 /**
<> 144:ef7eb2e8f9f7 149 * @brief Configure I2C Digital noise filter.
<> 144:ef7eb2e8f9f7 150 * @param hi2c: Pointer to a I2C_HandleTypeDef structure that contains
<> 144:ef7eb2e8f9f7 151 * the configuration information for the specified I2Cx peripheral.
<> 144:ef7eb2e8f9f7 152 * @param DigitalFilter: Coefficient of digital noise filter between 0x00 and 0x0F.
<> 144:ef7eb2e8f9f7 153 * @retval HAL status
<> 144:ef7eb2e8f9f7 154 */
<> 144:ef7eb2e8f9f7 155 HAL_StatusTypeDef HAL_I2CEx_ConfigDigitalFilter(I2C_HandleTypeDef *hi2c, uint32_t DigitalFilter)
<> 144:ef7eb2e8f9f7 156 {
<> 144:ef7eb2e8f9f7 157 uint32_t tmpreg = 0;
<> 144:ef7eb2e8f9f7 158
<> 144:ef7eb2e8f9f7 159 /* Check the parameters */
<> 144:ef7eb2e8f9f7 160 assert_param(IS_I2C_ALL_INSTANCE(hi2c->Instance));
<> 144:ef7eb2e8f9f7 161 assert_param(IS_I2C_DIGITAL_FILTER(DigitalFilter));
<> 144:ef7eb2e8f9f7 162
<> 144:ef7eb2e8f9f7 163 if(hi2c->State == HAL_I2C_STATE_READY)
<> 144:ef7eb2e8f9f7 164 {
<> 144:ef7eb2e8f9f7 165 /* Process Locked */
<> 144:ef7eb2e8f9f7 166 __HAL_LOCK(hi2c);
<> 144:ef7eb2e8f9f7 167
<> 144:ef7eb2e8f9f7 168 hi2c->State = HAL_I2C_STATE_BUSY;
<> 144:ef7eb2e8f9f7 169
<> 144:ef7eb2e8f9f7 170 /* Disable the selected I2C peripheral */
<> 144:ef7eb2e8f9f7 171 __HAL_I2C_DISABLE(hi2c);
<> 144:ef7eb2e8f9f7 172
<> 144:ef7eb2e8f9f7 173 /* Get the old register value */
<> 144:ef7eb2e8f9f7 174 tmpreg = hi2c->Instance->CR1;
<> 144:ef7eb2e8f9f7 175
<> 144:ef7eb2e8f9f7 176 /* Reset I2Cx DNF bits [11:8] */
<> 144:ef7eb2e8f9f7 177 tmpreg &= ~(I2C_CR1_DNF);
<> 144:ef7eb2e8f9f7 178
<> 144:ef7eb2e8f9f7 179 /* Set I2Cx DNF coefficient */
<> 144:ef7eb2e8f9f7 180 tmpreg |= DigitalFilter << 8;
<> 144:ef7eb2e8f9f7 181
<> 144:ef7eb2e8f9f7 182 /* Store the new register value */
<> 144:ef7eb2e8f9f7 183 hi2c->Instance->CR1 = tmpreg;
<> 144:ef7eb2e8f9f7 184
<> 144:ef7eb2e8f9f7 185 __HAL_I2C_ENABLE(hi2c);
<> 144:ef7eb2e8f9f7 186
<> 144:ef7eb2e8f9f7 187 hi2c->State = HAL_I2C_STATE_READY;
<> 144:ef7eb2e8f9f7 188
<> 144:ef7eb2e8f9f7 189 /* Process Unlocked */
<> 144:ef7eb2e8f9f7 190 __HAL_UNLOCK(hi2c);
<> 144:ef7eb2e8f9f7 191
<> 144:ef7eb2e8f9f7 192 return HAL_OK;
<> 144:ef7eb2e8f9f7 193 }
<> 144:ef7eb2e8f9f7 194 else
<> 144:ef7eb2e8f9f7 195 {
<> 144:ef7eb2e8f9f7 196 return HAL_BUSY;
<> 144:ef7eb2e8f9f7 197 }
<> 144:ef7eb2e8f9f7 198 }
<> 144:ef7eb2e8f9f7 199
<> 144:ef7eb2e8f9f7 200 #if defined (STM32F765xx) || defined (STM32F767xx) || defined (STM32F769xx) || defined (STM32F777xx) || defined (STM32F779xx)
<> 144:ef7eb2e8f9f7 201 /**
<> 144:ef7eb2e8f9f7 202 * @brief Enable the I2C fast mode plus driving capability.
<> 144:ef7eb2e8f9f7 203 * @param ConfigFastModePlus: Selects the pin.
<> 144:ef7eb2e8f9f7 204 * This parameter can be one of the @ref I2CEx_FastModePlus values
<> 144:ef7eb2e8f9f7 205 * @retval None
<> 144:ef7eb2e8f9f7 206 */
<> 144:ef7eb2e8f9f7 207 void HAL_I2CEx_EnableFastModePlus(uint32_t ConfigFastModePlus)
<> 144:ef7eb2e8f9f7 208 {
<> 144:ef7eb2e8f9f7 209 /* Check the parameter */
<> 144:ef7eb2e8f9f7 210 assert_param(IS_I2C_FASTMODEPLUS(ConfigFastModePlus));
<> 144:ef7eb2e8f9f7 211
<> 144:ef7eb2e8f9f7 212 /* Enable SYSCFG clock */
<> 144:ef7eb2e8f9f7 213 __HAL_RCC_SYSCFG_CLK_ENABLE();
<> 144:ef7eb2e8f9f7 214
<> 144:ef7eb2e8f9f7 215 /* Enable fast mode plus driving capability for selected pin */
<> 144:ef7eb2e8f9f7 216 SET_BIT(SYSCFG->PMC, (uint32_t)ConfigFastModePlus);
<> 144:ef7eb2e8f9f7 217 }
<> 144:ef7eb2e8f9f7 218
<> 144:ef7eb2e8f9f7 219 /**
<> 144:ef7eb2e8f9f7 220 * @brief Disable the I2C fast mode plus driving capability.
<> 144:ef7eb2e8f9f7 221 * @param ConfigFastModePlus: Selects the pin.
<> 144:ef7eb2e8f9f7 222 * This parameter can be one of the @ref I2CEx_FastModePlus values
<> 144:ef7eb2e8f9f7 223 * @retval None
<> 144:ef7eb2e8f9f7 224 */
<> 144:ef7eb2e8f9f7 225 void HAL_I2CEx_DisableFastModePlus(uint32_t ConfigFastModePlus)
<> 144:ef7eb2e8f9f7 226 {
<> 144:ef7eb2e8f9f7 227 /* Check the parameter */
<> 144:ef7eb2e8f9f7 228 assert_param(IS_I2C_FASTMODEPLUS(ConfigFastModePlus));
<> 144:ef7eb2e8f9f7 229
<> 144:ef7eb2e8f9f7 230 /* Enable SYSCFG clock */
<> 144:ef7eb2e8f9f7 231 __HAL_RCC_SYSCFG_CLK_ENABLE();
<> 144:ef7eb2e8f9f7 232
<> 144:ef7eb2e8f9f7 233 /* Disable fast mode plus driving capability for selected pin */
<> 144:ef7eb2e8f9f7 234 CLEAR_BIT(SYSCFG->PMC, (uint32_t)ConfigFastModePlus);
<> 144:ef7eb2e8f9f7 235 }
<> 144:ef7eb2e8f9f7 236 #endif /* STM32F767xx || STM32F769xx || STM32F777xx || STM32F779xx */
<> 144:ef7eb2e8f9f7 237
<> 144:ef7eb2e8f9f7 238 /**
<> 144:ef7eb2e8f9f7 239 * @}
<> 144:ef7eb2e8f9f7 240 */
<> 144:ef7eb2e8f9f7 241
<> 144:ef7eb2e8f9f7 242 /**
<> 144:ef7eb2e8f9f7 243 * @}
<> 144:ef7eb2e8f9f7 244 */
<> 144:ef7eb2e8f9f7 245
<> 144:ef7eb2e8f9f7 246 #endif /* HAL_I2C_MODULE_ENABLED */
<> 144:ef7eb2e8f9f7 247 /**
<> 144:ef7eb2e8f9f7 248 * @}
<> 144:ef7eb2e8f9f7 249 */
<> 144:ef7eb2e8f9f7 250
<> 144:ef7eb2e8f9f7 251 /**
<> 144:ef7eb2e8f9f7 252 * @}
<> 144:ef7eb2e8f9f7 253 */
<> 144:ef7eb2e8f9f7 254
<> 144:ef7eb2e8f9f7 255 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/