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fix LPC812 PWM

Dependents:   IR_LED_Send

Fork of mbed-dev by mbed official

targets/cmsis/TARGET_STM/TARGET_STM32L0/stm32l0xx_hal_uart_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_uart_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 UART HAL module driver.
bogdanm 0:9b334a45a8ff 8 *
bogdanm 0:9b334a45a8ff 9 * This file provides firmware functions to manage the following
bogdanm 0:9b334a45a8ff 10 * functionalities of the Inter Integrated Circuit (UART) peripheral:
bogdanm 0:9b334a45a8ff 11 * + Extended Control methods
bogdanm 0:9b334a45a8ff 12 *
bogdanm 0:9b334a45a8ff 13 @verbatim
bogdanm 0:9b334a45a8ff 14 ==============================================================================
bogdanm 0:9b334a45a8ff 15 ##### UART peripheral extended features #####
bogdanm 0:9b334a45a8ff 16 ==============================================================================
bogdanm 0:9b334a45a8ff 17
bogdanm 0:9b334a45a8ff 18 [..] Comparing to other previous devices, the UART interface for STM32L0XX
bogdanm 0:9b334a45a8ff 19 devices contains the following additional features
bogdanm 0:9b334a45a8ff 20
bogdanm 0:9b334a45a8ff 21 (+) Possibility to disable or enable Analog Noise Filter
bogdanm 0:9b334a45a8ff 22 (+) Use of a configured Digital Noise Filter
bogdanm 0:9b334a45a8ff 23 (+) Disable or enable wakeup from Stop mode
bogdanm 0:9b334a45a8ff 24
bogdanm 0:9b334a45a8ff 25 ##### How to use this driver #####
bogdanm 0:9b334a45a8ff 26 ==============================================================================
bogdanm 0:9b334a45a8ff 27 [..] This driver provides functions to configure Noise Filter
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 "stm32l0xx_hal.h"
bogdanm 0:9b334a45a8ff 62
bogdanm 0:9b334a45a8ff 63 /** @addtogroup STM32L0xx_HAL_Driver
bogdanm 0:9b334a45a8ff 64 * @{
bogdanm 0:9b334a45a8ff 65 */
bogdanm 0:9b334a45a8ff 66
bogdanm 0:9b334a45a8ff 67 /** @addtogroup UARTEx
bogdanm 0:9b334a45a8ff 68 * @brief UARTEx module driver
bogdanm 0:9b334a45a8ff 69 * @{
bogdanm 0:9b334a45a8ff 70 */
bogdanm 0:9b334a45a8ff 71
bogdanm 0:9b334a45a8ff 72 #ifdef HAL_UART_MODULE_ENABLED
bogdanm 0:9b334a45a8ff 73
bogdanm 0:9b334a45a8ff 74 /* Private typedef -----------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 75 /* Private define ------------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 76 #define UART_REACK_TIMEOUT ((uint32_t) 1000)
bogdanm 0:9b334a45a8ff 77 /* Private macro -------------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 78 /* Private variables ---------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 79 /* Private function prototypes -----------------------------------------------*/
bogdanm 0:9b334a45a8ff 80 static void UART_Wakeup_AddressConfig(UART_HandleTypeDef *huart, UART_WakeUpTypeDef WakeUpSelection);
bogdanm 0:9b334a45a8ff 81 /* Private functions ---------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 82
bogdanm 0:9b334a45a8ff 83 /** @addtogroup UARTEx_Exported_Functions
bogdanm 0:9b334a45a8ff 84 * @{
bogdanm 0:9b334a45a8ff 85 */
bogdanm 0:9b334a45a8ff 86
bogdanm 0:9b334a45a8ff 87 /** @addtogroup UARTEx_Exported_Functions_Group1
bogdanm 0:9b334a45a8ff 88 * @brief Extended Initialization and Configuration Functions
bogdanm 0:9b334a45a8ff 89
bogdanm 0:9b334a45a8ff 90 *
bogdanm 0:9b334a45a8ff 91 @verbatim
bogdanm 0:9b334a45a8ff 92 ===============================================================================
bogdanm 0:9b334a45a8ff 93 ##### Initialization and Configuration functions #####
bogdanm 0:9b334a45a8ff 94 ===============================================================================
bogdanm 0:9b334a45a8ff 95 [..]
bogdanm 0:9b334a45a8ff 96 The HAL_RS485Ex_Init() API follows respectively the UART RS485 mode
bogdanm 0:9b334a45a8ff 97 configuration procedures (details for the procedures are available in reference manual).
bogdanm 0:9b334a45a8ff 98
bogdanm 0:9b334a45a8ff 99 @endverbatim
bogdanm 0:9b334a45a8ff 100 * @{
bogdanm 0:9b334a45a8ff 101 */
bogdanm 0:9b334a45a8ff 102
bogdanm 0:9b334a45a8ff 103 /**
bogdanm 0:9b334a45a8ff 104 * @brief Initializes the RS485 Driver enable feature according to the specified
bogdanm 0:9b334a45a8ff 105 * parameters in the UART_InitTypeDef and creates the associated handle .
bogdanm 0:9b334a45a8ff 106 * @param huart: uart handle
bogdanm 0:9b334a45a8ff 107 * @param Polarity: select the driver enable polarity
bogdanm 0:9b334a45a8ff 108 * This parameter can be one of the following values:
bogdanm 0:9b334a45a8ff 109 * @arg UART_DE_POLARITY_HIGH: DE signal is active high
bogdanm 0:9b334a45a8ff 110 * @arg UART_DE_POLARITY_LOW: DE signal is active low
bogdanm 0:9b334a45a8ff 111 * @param AssertionTime: Driver Enable assertion time
bogdanm 0:9b334a45a8ff 112 * 5-bit value defining the time between the activation of the DE (Driver Enable)
bogdanm 0:9b334a45a8ff 113 * signal and the beginning of the start bit. It is expressed in sample time
bogdanm 0:9b334a45a8ff 114 * units (1/8 or 1/16 bit time, depending on the oversampling rate)
bogdanm 0:9b334a45a8ff 115 * @param DeassertionTime: Driver Enable deassertion time
bogdanm 0:9b334a45a8ff 116 * 5-bit value defining the time between the end of the last stop bit, in a
bogdanm 0:9b334a45a8ff 117 * transmitted message, and the de-activation of the DE (Driver Enable) signal.
bogdanm 0:9b334a45a8ff 118 * It is expressed in sample time units (1/8 or 1/16 bit time, depending on the
bogdanm 0:9b334a45a8ff 119 * oversampling rate).
bogdanm 0:9b334a45a8ff 120 * @retval HAL status
bogdanm 0:9b334a45a8ff 121 */
bogdanm 0:9b334a45a8ff 122 HAL_StatusTypeDef HAL_RS485Ex_Init(UART_HandleTypeDef *huart, uint32_t Polarity, uint32_t AssertionTime, uint32_t DeassertionTime)
bogdanm 0:9b334a45a8ff 123 {
bogdanm 0:9b334a45a8ff 124 uint32_t temp = 0x0;
bogdanm 0:9b334a45a8ff 125
bogdanm 0:9b334a45a8ff 126 /* Check the UART handle allocation */
bogdanm 0:9b334a45a8ff 127 if(huart == NULL)
bogdanm 0:9b334a45a8ff 128 {
bogdanm 0:9b334a45a8ff 129 return HAL_ERROR;
bogdanm 0:9b334a45a8ff 130 }
bogdanm 0:9b334a45a8ff 131
bogdanm 0:9b334a45a8ff 132 /* Check the Driver Enable polarity */
bogdanm 0:9b334a45a8ff 133 assert_param(IS_UART_DE_POLARITY(Polarity));
bogdanm 0:9b334a45a8ff 134
bogdanm 0:9b334a45a8ff 135 /* Check the Driver Enable assertion time */
bogdanm 0:9b334a45a8ff 136 assert_param(IS_UART_ASSERTIONTIME(AssertionTime));
bogdanm 0:9b334a45a8ff 137
bogdanm 0:9b334a45a8ff 138 /* Check the Driver Enable deassertion time */
bogdanm 0:9b334a45a8ff 139 assert_param(IS_UART_DEASSERTIONTIME(DeassertionTime));
bogdanm 0:9b334a45a8ff 140
bogdanm 0:9b334a45a8ff 141 if(huart->State == HAL_UART_STATE_RESET)
bogdanm 0:9b334a45a8ff 142 {
bogdanm 0:9b334a45a8ff 143 /* Init the low level hardware : GPIO, CLOCK, CORTEX */
bogdanm 0:9b334a45a8ff 144 HAL_UART_MspInit(huart);
bogdanm 0:9b334a45a8ff 145 }
bogdanm 0:9b334a45a8ff 146
bogdanm 0:9b334a45a8ff 147 huart->State = HAL_UART_STATE_BUSY;
bogdanm 0:9b334a45a8ff 148
bogdanm 0:9b334a45a8ff 149 /* Disable the Peripheral */
bogdanm 0:9b334a45a8ff 150 __HAL_UART_DISABLE(huart);
bogdanm 0:9b334a45a8ff 151
bogdanm 0:9b334a45a8ff 152 /* Set the UART Communication parameters */
bogdanm 0:9b334a45a8ff 153 UART_SetConfig(huart);
bogdanm 0:9b334a45a8ff 154
bogdanm 0:9b334a45a8ff 155 if(huart->AdvancedInit.AdvFeatureInit != UART_ADVFEATURE_NO_INIT)
bogdanm 0:9b334a45a8ff 156 {
bogdanm 0:9b334a45a8ff 157 UART_AdvFeatureConfig(huart);
bogdanm 0:9b334a45a8ff 158 }
bogdanm 0:9b334a45a8ff 159
bogdanm 0:9b334a45a8ff 160 /* Enable the Driver Enable mode by setting the DEM bit in the CR3 register */
bogdanm 0:9b334a45a8ff 161 huart->Instance->CR3 |= USART_CR3_DEM;
bogdanm 0:9b334a45a8ff 162
bogdanm 0:9b334a45a8ff 163 /* Set the Driver Enable polarity */
bogdanm 0:9b334a45a8ff 164 MODIFY_REG(huart->Instance->CR3, USART_CR3_DEP, Polarity);
bogdanm 0:9b334a45a8ff 165
bogdanm 0:9b334a45a8ff 166 /* Set the Driver Enable assertion and deassertion times */
bogdanm 0:9b334a45a8ff 167 temp = (AssertionTime << UART_CR1_DEAT_ADDRESS_LSB_POS);
bogdanm 0:9b334a45a8ff 168 temp |= (DeassertionTime << UART_CR1_DEDT_ADDRESS_LSB_POS);
bogdanm 0:9b334a45a8ff 169 MODIFY_REG(huart->Instance->CR1, (USART_CR1_DEDT|USART_CR1_DEAT), temp);
bogdanm 0:9b334a45a8ff 170
bogdanm 0:9b334a45a8ff 171 /* Enable the Peripheral */
bogdanm 0:9b334a45a8ff 172 __HAL_UART_ENABLE(huart);
bogdanm 0:9b334a45a8ff 173
bogdanm 0:9b334a45a8ff 174 /* TEACK and/or REACK to check before moving huart->State to Ready */
bogdanm 0:9b334a45a8ff 175 return (UART_CheckIdleState(huart));
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 /** @addtogroup UARTEx_Exported_Functions_Group2
bogdanm 0:9b334a45a8ff 184 * @brief management functions
bogdanm 0:9b334a45a8ff 185 *
bogdanm 0:9b334a45a8ff 186 @verbatim
bogdanm 0:9b334a45a8ff 187 ===============================================================================
bogdanm 0:9b334a45a8ff 188 ##### Peripheral Control funtions #####
bogdanm 0:9b334a45a8ff 189 ===============================================================================
bogdanm 0:9b334a45a8ff 190 [..] This section provides functions allowing to:
bogdanm 0:9b334a45a8ff 191 (+) UART_AdvFeatureConfig() API optionally configures the UART advanced features
bogdanm 0:9b334a45a8ff 192 (+) HAL_MultiProcessorEx_AddressLength_Set() API optionally sets the UART node address
bogdanm 0:9b334a45a8ff 193 detection length to more than 4 bits for multiprocessor address mark wake up.
bogdanm 0:9b334a45a8ff 194 (+) HAL_UARTEx_EnableStopMode() API enables the UART to wake up the MCU from stop mode
bogdanm 0:9b334a45a8ff 195 (+) HAL_UARTEx_DisableStopMode() API disables the above functionality
bogdanm 0:9b334a45a8ff 196 (+) HAL_UARTEx_EnableClockStopMode() API enables the UART HSI clock during stop mode
bogdanm 0:9b334a45a8ff 197 (+) HAL_UARTEx_DisableClockStopMode() API disables the above functionality
bogdanm 0:9b334a45a8ff 198 (+) UART_Wakeup_AddressConfig() API configures the wake-up from stop mode parameters
bogdanm 0:9b334a45a8ff 199
bogdanm 0:9b334a45a8ff 200 @endverbatim
bogdanm 0:9b334a45a8ff 201 * @{
bogdanm 0:9b334a45a8ff 202 */
bogdanm 0:9b334a45a8ff 203
bogdanm 0:9b334a45a8ff 204 /**
bogdanm 0:9b334a45a8ff 205 * @brief Enable UART Stop Mode
bogdanm 0:9b334a45a8ff 206 * The UART is able to wake up the MCU from Stop mode as long as UART clock is HSI or LSE
bogdanm 0:9b334a45a8ff 207 * @param huart: uart handle
bogdanm 0:9b334a45a8ff 208 * @retval HAL status
bogdanm 0:9b334a45a8ff 209 */
bogdanm 0:9b334a45a8ff 210 HAL_StatusTypeDef HAL_UARTEx_EnableStopMode(UART_HandleTypeDef *huart)
bogdanm 0:9b334a45a8ff 211 {
bogdanm 0:9b334a45a8ff 212 /* Process Locked */
bogdanm 0:9b334a45a8ff 213 __HAL_LOCK(huart);
bogdanm 0:9b334a45a8ff 214
bogdanm 0:9b334a45a8ff 215 huart->State = HAL_UART_STATE_BUSY;
bogdanm 0:9b334a45a8ff 216
bogdanm 0:9b334a45a8ff 217 /* Set the USART UESM bit */
bogdanm 0:9b334a45a8ff 218 huart->Instance->CR1 |= USART_CR1_UESM;
bogdanm 0:9b334a45a8ff 219
bogdanm 0:9b334a45a8ff 220 huart->State = HAL_UART_STATE_READY;
bogdanm 0:9b334a45a8ff 221
bogdanm 0:9b334a45a8ff 222 /* Process Unlocked */
bogdanm 0:9b334a45a8ff 223 __HAL_UNLOCK(huart);
bogdanm 0:9b334a45a8ff 224
bogdanm 0:9b334a45a8ff 225 return HAL_OK;
bogdanm 0:9b334a45a8ff 226 }
bogdanm 0:9b334a45a8ff 227
bogdanm 0:9b334a45a8ff 228 /**
bogdanm 0:9b334a45a8ff 229 * @brief Enable UART Clock in Stop Mode
bogdanm 0:9b334a45a8ff 230 * The UART keeps the Clock ON during Stop mode
bogdanm 0:9b334a45a8ff 231 * @param huart: uart handle
bogdanm 0:9b334a45a8ff 232 * @retval HAL status
bogdanm 0:9b334a45a8ff 233 */
bogdanm 0:9b334a45a8ff 234 HAL_StatusTypeDef HAL_UARTEx_EnableClockStopMode(UART_HandleTypeDef *huart)
bogdanm 0:9b334a45a8ff 235 {
bogdanm 0:9b334a45a8ff 236 /* Process Locked */
bogdanm 0:9b334a45a8ff 237 __HAL_LOCK(huart);
bogdanm 0:9b334a45a8ff 238
bogdanm 0:9b334a45a8ff 239 huart->State = HAL_UART_STATE_BUSY;
bogdanm 0:9b334a45a8ff 240
bogdanm 0:9b334a45a8ff 241 /* Set the USART UESM bit */
bogdanm 0:9b334a45a8ff 242 huart->Instance->CR3 |= USART_CR3_UCESM;
bogdanm 0:9b334a45a8ff 243
bogdanm 0:9b334a45a8ff 244 huart->State = HAL_UART_STATE_READY;
bogdanm 0:9b334a45a8ff 245
bogdanm 0:9b334a45a8ff 246 /* Process Unlocked */
bogdanm 0:9b334a45a8ff 247 __HAL_UNLOCK(huart);
bogdanm 0:9b334a45a8ff 248
bogdanm 0:9b334a45a8ff 249 return HAL_OK;
bogdanm 0:9b334a45a8ff 250 }
bogdanm 0:9b334a45a8ff 251
bogdanm 0:9b334a45a8ff 252 /**
bogdanm 0:9b334a45a8ff 253 * @brief Disable UART Stop Mode
bogdanm 0:9b334a45a8ff 254 * @param huart: uart handle
bogdanm 0:9b334a45a8ff 255 * @retval HAL status
bogdanm 0:9b334a45a8ff 256 */
bogdanm 0:9b334a45a8ff 257 HAL_StatusTypeDef HAL_UARTEx_DisableStopMode(UART_HandleTypeDef *huart)
bogdanm 0:9b334a45a8ff 258 {
bogdanm 0:9b334a45a8ff 259 /* Process Locked */
bogdanm 0:9b334a45a8ff 260 __HAL_LOCK(huart);
bogdanm 0:9b334a45a8ff 261
bogdanm 0:9b334a45a8ff 262 huart->State = HAL_UART_STATE_BUSY;
bogdanm 0:9b334a45a8ff 263
bogdanm 0:9b334a45a8ff 264 /* Clear USART UESM bit */
bogdanm 0:9b334a45a8ff 265 huart->Instance->CR1 &= ~(USART_CR1_UESM);
bogdanm 0:9b334a45a8ff 266
bogdanm 0:9b334a45a8ff 267 huart->State = HAL_UART_STATE_READY;
bogdanm 0:9b334a45a8ff 268
bogdanm 0:9b334a45a8ff 269 /* Process Unlocked */
bogdanm 0:9b334a45a8ff 270 __HAL_UNLOCK(huart);
bogdanm 0:9b334a45a8ff 271
bogdanm 0:9b334a45a8ff 272 return HAL_OK;
bogdanm 0:9b334a45a8ff 273 }
bogdanm 0:9b334a45a8ff 274
bogdanm 0:9b334a45a8ff 275 /**
bogdanm 0:9b334a45a8ff 276 * @brief Disable UART Clock in Stop Mode
bogdanm 0:9b334a45a8ff 277 * @param huart: uart handle
bogdanm 0:9b334a45a8ff 278 * @retval HAL status
bogdanm 0:9b334a45a8ff 279 */
bogdanm 0:9b334a45a8ff 280 HAL_StatusTypeDef HAL_UARTEx_DisableClockStopMode(UART_HandleTypeDef *huart)
bogdanm 0:9b334a45a8ff 281 {
bogdanm 0:9b334a45a8ff 282 /* Process Locked */
bogdanm 0:9b334a45a8ff 283 __HAL_LOCK(huart);
bogdanm 0:9b334a45a8ff 284
bogdanm 0:9b334a45a8ff 285 huart->State = HAL_UART_STATE_BUSY;
bogdanm 0:9b334a45a8ff 286
bogdanm 0:9b334a45a8ff 287 /* Clear USART UESM bit */
bogdanm 0:9b334a45a8ff 288 huart->Instance->CR3 &= ~(USART_CR3_UCESM);
bogdanm 0:9b334a45a8ff 289
bogdanm 0:9b334a45a8ff 290 huart->State = HAL_UART_STATE_READY;
bogdanm 0:9b334a45a8ff 291
bogdanm 0:9b334a45a8ff 292 /* Process Unlocked */
bogdanm 0:9b334a45a8ff 293 __HAL_UNLOCK(huart);
bogdanm 0:9b334a45a8ff 294
bogdanm 0:9b334a45a8ff 295 return HAL_OK;
bogdanm 0:9b334a45a8ff 296 }
bogdanm 0:9b334a45a8ff 297
bogdanm 0:9b334a45a8ff 298 /**
bogdanm 0:9b334a45a8ff 299 * @brief Set Wakeup from Stop mode interrupt flag selection
bogdanm 0:9b334a45a8ff 300 * @param huart: uart handle,
bogdanm 0:9b334a45a8ff 301 * @param WakeUpSelection: address match, Start Bit detection or RXNE bit status.
bogdanm 0:9b334a45a8ff 302 * This parameter can be one of the following values:
bogdanm 0:9b334a45a8ff 303 * @arg UART_WAKEUP_ON_ADDRESS
bogdanm 0:9b334a45a8ff 304 * @arg UART_WAKEUP_ON_STARTBIT
bogdanm 0:9b334a45a8ff 305 * @arg UART_WAKEUP_ON_READDATA_NONEMPTY
bogdanm 0:9b334a45a8ff 306 * @retval HAL status
bogdanm 0:9b334a45a8ff 307 */
bogdanm 0:9b334a45a8ff 308 HAL_StatusTypeDef HAL_UARTEx_StopModeWakeUpSourceConfig(UART_HandleTypeDef *huart, UART_WakeUpTypeDef WakeUpSelection)
bogdanm 0:9b334a45a8ff 309 {
bogdanm 0:9b334a45a8ff 310
bogdanm 0:9b334a45a8ff 311 /* check the wake-up from stop mode UART instance */
bogdanm 0:9b334a45a8ff 312 assert_param(IS_UART_WAKEUP_FROMSTOP_INSTANCE(huart->Instance));
bogdanm 0:9b334a45a8ff 313 /* Check the wake-up selection parameter */
bogdanm 0:9b334a45a8ff 314 assert_param(IS_UART_WAKEUP_SELECTION(WakeUpSelection.WakeUpEvent));
bogdanm 0:9b334a45a8ff 315
bogdanm 0:9b334a45a8ff 316 /* Process Locked */
bogdanm 0:9b334a45a8ff 317 __HAL_LOCK(huart);
bogdanm 0:9b334a45a8ff 318
bogdanm 0:9b334a45a8ff 319 huart->State = HAL_UART_STATE_BUSY;
bogdanm 0:9b334a45a8ff 320
bogdanm 0:9b334a45a8ff 321 /* Disable the Peripheral */
bogdanm 0:9b334a45a8ff 322 __HAL_UART_DISABLE(huart);
bogdanm 0:9b334a45a8ff 323
bogdanm 0:9b334a45a8ff 324 /* Set the wake-up selection scheme */
bogdanm 0:9b334a45a8ff 325 MODIFY_REG(huart->Instance->CR3, USART_CR3_WUS, WakeUpSelection.WakeUpEvent);
bogdanm 0:9b334a45a8ff 326
bogdanm 0:9b334a45a8ff 327 if(WakeUpSelection.WakeUpEvent == UART_WAKEUP_ON_ADDRESS)
bogdanm 0:9b334a45a8ff 328 {
bogdanm 0:9b334a45a8ff 329 UART_Wakeup_AddressConfig(huart, WakeUpSelection);
bogdanm 0:9b334a45a8ff 330 }
bogdanm 0:9b334a45a8ff 331
bogdanm 0:9b334a45a8ff 332 /* Enable the Peripheral */
bogdanm 0:9b334a45a8ff 333 __HAL_UART_ENABLE(huart);
bogdanm 0:9b334a45a8ff 334
bogdanm 0:9b334a45a8ff 335 /* Wait until REACK flag is set before moving huart->State to Ready */
bogdanm 0:9b334a45a8ff 336 if(UART_WaitOnFlagUntilTimeout(huart, USART_ISR_REACK, RESET, UART_REACK_TIMEOUT) != HAL_OK)
bogdanm 0:9b334a45a8ff 337 {
bogdanm 0:9b334a45a8ff 338 return HAL_TIMEOUT;
bogdanm 0:9b334a45a8ff 339 }
bogdanm 0:9b334a45a8ff 340
bogdanm 0:9b334a45a8ff 341 /* Process Unlocked */
bogdanm 0:9b334a45a8ff 342 __HAL_UNLOCK(huart);
bogdanm 0:9b334a45a8ff 343
bogdanm 0:9b334a45a8ff 344 /* Initialize the UART state*/
bogdanm 0:9b334a45a8ff 345 huart->ErrorCode = HAL_UART_ERROR_NONE;
bogdanm 0:9b334a45a8ff 346 huart->State= HAL_UART_STATE_READY;
bogdanm 0:9b334a45a8ff 347
bogdanm 0:9b334a45a8ff 348 return HAL_OK;
bogdanm 0:9b334a45a8ff 349 }
bogdanm 0:9b334a45a8ff 350 /**
bogdanm 0:9b334a45a8ff 351 * @brief By default in multiprocessor mode, when the wake up method is set
bogdanm 0:9b334a45a8ff 352 * to address mark, the UART handles only 4-bit long addresses detection.
bogdanm 0:9b334a45a8ff 353 * This API allows to enable longer addresses detection (6-, 7- or 8-bit
bogdanm 0:9b334a45a8ff 354 * long):
bogdanm 0:9b334a45a8ff 355 * - 6-bit address detection in 7-bit data mode
bogdanm 0:9b334a45a8ff 356 * - 7-bit address detection in 8-bit data mode
bogdanm 0:9b334a45a8ff 357 * - 8-bit address detection in 9-bit data mode
bogdanm 0:9b334a45a8ff 358 * @param huart: UART handle
bogdanm 0:9b334a45a8ff 359 * @param AddressLength: this parameter can be one of the following values:
bogdanm 0:9b334a45a8ff 360 * @arg UART_ADDRESS_DETECT_4B: 4-bit long address
bogdanm 0:9b334a45a8ff 361 * @arg UART_ADDRESS_DETECT_7B: 6-, 7- or 8-bit long address
bogdanm 0:9b334a45a8ff 362 * @retval HAL status
bogdanm 0:9b334a45a8ff 363 */
bogdanm 0:9b334a45a8ff 364 HAL_StatusTypeDef HAL_MultiProcessorEx_AddressLength_Set(UART_HandleTypeDef *huart, uint32_t AddressLength)
bogdanm 0:9b334a45a8ff 365 {
bogdanm 0:9b334a45a8ff 366 /* Check the UART handle allocation */
bogdanm 0:9b334a45a8ff 367 if(huart == NULL)
bogdanm 0:9b334a45a8ff 368 {
bogdanm 0:9b334a45a8ff 369 return HAL_ERROR;
bogdanm 0:9b334a45a8ff 370 }
bogdanm 0:9b334a45a8ff 371
bogdanm 0:9b334a45a8ff 372 /* Check the address length parameter */
bogdanm 0:9b334a45a8ff 373 assert_param(IS_UART_ADDRESSLENGTH_DETECT(AddressLength));
bogdanm 0:9b334a45a8ff 374
bogdanm 0:9b334a45a8ff 375 huart->State = HAL_UART_STATE_BUSY;
bogdanm 0:9b334a45a8ff 376
bogdanm 0:9b334a45a8ff 377 /* Disable the Peripheral */
bogdanm 0:9b334a45a8ff 378 __HAL_UART_DISABLE(huart);
bogdanm 0:9b334a45a8ff 379
bogdanm 0:9b334a45a8ff 380 /* Set the address length */
bogdanm 0:9b334a45a8ff 381 MODIFY_REG(huart->Instance->CR2, USART_CR2_ADDM7, AddressLength);
bogdanm 0:9b334a45a8ff 382
bogdanm 0:9b334a45a8ff 383 /* Enable the Peripheral */
bogdanm 0:9b334a45a8ff 384 __HAL_UART_ENABLE(huart);
bogdanm 0:9b334a45a8ff 385
bogdanm 0:9b334a45a8ff 386 /* TEACK and/or REACK to check before moving huart->State to Ready */
bogdanm 0:9b334a45a8ff 387 return (UART_CheckIdleState(huart));
bogdanm 0:9b334a45a8ff 388 }
bogdanm 0:9b334a45a8ff 389
bogdanm 0:9b334a45a8ff 390 /**
bogdanm 0:9b334a45a8ff 391 * @}
bogdanm 0:9b334a45a8ff 392 */
bogdanm 0:9b334a45a8ff 393
bogdanm 0:9b334a45a8ff 394 /**
bogdanm 0:9b334a45a8ff 395 * @brief Initializes the UART wake-up from stop mode parameters when triggered by address detection.
bogdanm 0:9b334a45a8ff 396 * @param huart: uart handle
bogdanm 0:9b334a45a8ff 397 * @param WakeUpSelection: UART wake up from stop mode parameters
bogdanm 0:9b334a45a8ff 398 * @retval HAL status
bogdanm 0:9b334a45a8ff 399 */
bogdanm 0:9b334a45a8ff 400 static void UART_Wakeup_AddressConfig(UART_HandleTypeDef *huart, UART_WakeUpTypeDef WakeUpSelection)
bogdanm 0:9b334a45a8ff 401 {
bogdanm 0:9b334a45a8ff 402 assert_param(IS_UART_ADDRESSLENGTH_DETECT(WakeUpSelection.AddressLength));
bogdanm 0:9b334a45a8ff 403 if(WakeUpSelection.AddressLength == UART_ADDRESS_DETECT_4B)
bogdanm 0:9b334a45a8ff 404 {
bogdanm 0:9b334a45a8ff 405 assert_param(IS_UART_4B_ADDRESS(WakeUpSelection.Address));
bogdanm 0:9b334a45a8ff 406 }
bogdanm 0:9b334a45a8ff 407 else
bogdanm 0:9b334a45a8ff 408 {
bogdanm 0:9b334a45a8ff 409 assert_param(IS_UART_7B_ADDRESS(WakeUpSelection.Address));
bogdanm 0:9b334a45a8ff 410 }
bogdanm 0:9b334a45a8ff 411
bogdanm 0:9b334a45a8ff 412 /* Set the USART address length */
bogdanm 0:9b334a45a8ff 413 MODIFY_REG(huart->Instance->CR2, USART_CR2_ADDM7, WakeUpSelection.AddressLength);
bogdanm 0:9b334a45a8ff 414
bogdanm 0:9b334a45a8ff 415 /* Set the USART address node */
bogdanm 0:9b334a45a8ff 416 MODIFY_REG(huart->Instance->CR2, USART_CR2_ADD, ((uint32_t)WakeUpSelection.Address << UART_CR2_ADDRESS_LSB_POS));
bogdanm 0:9b334a45a8ff 417 }
bogdanm 0:9b334a45a8ff 418
bogdanm 0:9b334a45a8ff 419 /**
bogdanm 0:9b334a45a8ff 420 * @brief UART wakeup from Stop mode callback
bogdanm 0:9b334a45a8ff 421 * @param huart: uart handle
bogdanm 0:9b334a45a8ff 422 * @retval None
bogdanm 0:9b334a45a8ff 423 */
bogdanm 0:9b334a45a8ff 424 __weak void HAL_UARTEx_WakeupCallback(UART_HandleTypeDef *huart)
bogdanm 0:9b334a45a8ff 425 {
bogdanm 0:9b334a45a8ff 426 /* NOTE : This function should not be modified, when the callback is needed,
bogdanm 0:9b334a45a8ff 427 the HAL_UART_WakeupCallback can be implemented in the user file
bogdanm 0:9b334a45a8ff 428 */
bogdanm 0:9b334a45a8ff 429 }
bogdanm 0:9b334a45a8ff 430
bogdanm 0:9b334a45a8ff 431 /**
bogdanm 0:9b334a45a8ff 432 * @}
bogdanm 0:9b334a45a8ff 433 */
bogdanm 0:9b334a45a8ff 434
bogdanm 0:9b334a45a8ff 435 #endif /* HAL_UART_MODULE_ENABLED */
bogdanm 0:9b334a45a8ff 436 /**
bogdanm 0:9b334a45a8ff 437 * @}
bogdanm 0:9b334a45a8ff 438 */
bogdanm 0:9b334a45a8ff 439
bogdanm 0:9b334a45a8ff 440 /**
bogdanm 0:9b334a45a8ff 441 * @}
bogdanm 0:9b334a45a8ff 442 */
bogdanm 0:9b334a45a8ff 443
bogdanm 0:9b334a45a8ff 444 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
bogdanm 0:9b334a45a8ff 445