shao ziyang / mbed-src-kl05

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Dependents:   frdm_kl05z_gpio_test

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targets/cmsis/TARGET_STM/TARGET_NUCLEO_F103RB/stm32f10x_bkp.c@323:9e901b0a5aa1, 2014-09-13 (annotated)

Committer:
shaoziyang
Date:
Sat Sep 13 14:25:46 2014 +0000
Revision:
323:9e901b0a5aa1
Parent:
84:f54042cbc282 
test with CLOCK_SETUP = 0

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 52:a51c77007319 1 /**
mbed_official 52:a51c77007319 2 ******************************************************************************
mbed_official 52:a51c77007319 3 * @file stm32f10x_bkp.c
mbed_official 52:a51c77007319 4 * @author MCD Application Team
mbed_official 84:f54042cbc282 5 * @version V3.6.1
mbed_official 84:f54042cbc282 6 * @date 05-March-2012
mbed_official 52:a51c77007319 7 * @brief This file provides all the BKP firmware functions.
mbed_official 70:c1fbde68b492 8 *******************************************************************************
mbed_official 70:c1fbde68b492 9 * Copyright (c) 2014, STMicroelectronics
mbed_official 70:c1fbde68b492 10 * All rights reserved.
mbed_official 70:c1fbde68b492 11 *
mbed_official 70:c1fbde68b492 12 * Redistribution and use in source and binary forms, with or without
mbed_official 70:c1fbde68b492 13 * modification, are permitted provided that the following conditions are met:
mbed_official 70:c1fbde68b492 14 *
mbed_official 70:c1fbde68b492 15 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 70:c1fbde68b492 16 * this list of conditions and the following disclaimer.
mbed_official 70:c1fbde68b492 17 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 70:c1fbde68b492 18 * this list of conditions and the following disclaimer in the documentation
mbed_official 70:c1fbde68b492 19 * and/or other materials provided with the distribution.
mbed_official 70:c1fbde68b492 20 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 70:c1fbde68b492 21 * may be used to endorse or promote products derived from this software
mbed_official 70:c1fbde68b492 22 * without specific prior written permission.
mbed_official 70:c1fbde68b492 23 *
mbed_official 70:c1fbde68b492 24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 70:c1fbde68b492 25 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 70:c1fbde68b492 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 70:c1fbde68b492 27 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 70:c1fbde68b492 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 70:c1fbde68b492 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 70:c1fbde68b492 30 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 70:c1fbde68b492 31 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 70:c1fbde68b492 32 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 70:c1fbde68b492 33 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 70:c1fbde68b492 34 *******************************************************************************
mbed_official 70:c1fbde68b492 35 */
mbed_official 52:a51c77007319 36
mbed_official 52:a51c77007319 37 /* Includes ------------------------------------------------------------------*/
mbed_official 52:a51c77007319 38 #include "stm32f10x_bkp.h"
mbed_official 52:a51c77007319 39 #include "stm32f10x_rcc.h"
mbed_official 52:a51c77007319 40
mbed_official 52:a51c77007319 41 /** @addtogroup STM32F10x_StdPeriph_Driver
mbed_official 52:a51c77007319 42 * @{
mbed_official 52:a51c77007319 43 */
mbed_official 52:a51c77007319 44
mbed_official 52:a51c77007319 45 /** @defgroup BKP
mbed_official 52:a51c77007319 46 * @brief BKP driver modules
mbed_official 52:a51c77007319 47 * @{
mbed_official 52:a51c77007319 48 */
mbed_official 52:a51c77007319 49
mbed_official 52:a51c77007319 50 /** @defgroup BKP_Private_TypesDefinitions
mbed_official 52:a51c77007319 51 * @{
mbed_official 52:a51c77007319 52 */
mbed_official 52:a51c77007319 53
mbed_official 52:a51c77007319 54 /**
mbed_official 52:a51c77007319 55 * @}
mbed_official 52:a51c77007319 56 */
mbed_official 52:a51c77007319 57
mbed_official 52:a51c77007319 58 /** @defgroup BKP_Private_Defines
mbed_official 52:a51c77007319 59 * @{
mbed_official 52:a51c77007319 60 */
mbed_official 52:a51c77007319 61
mbed_official 52:a51c77007319 62 /* ------------ BKP registers bit address in the alias region --------------- */
mbed_official 52:a51c77007319 63 #define BKP_OFFSET (BKP_BASE - PERIPH_BASE)
mbed_official 52:a51c77007319 64
mbed_official 52:a51c77007319 65 /* --- CR Register ----*/
mbed_official 52:a51c77007319 66
mbed_official 52:a51c77007319 67 /* Alias word address of TPAL bit */
mbed_official 52:a51c77007319 68 #define CR_OFFSET (BKP_OFFSET + 0x30)
mbed_official 52:a51c77007319 69 #define TPAL_BitNumber 0x01
mbed_official 52:a51c77007319 70 #define CR_TPAL_BB (PERIPH_BB_BASE + (CR_OFFSET * 32) + (TPAL_BitNumber * 4))
mbed_official 52:a51c77007319 71
mbed_official 52:a51c77007319 72 /* Alias word address of TPE bit */
mbed_official 52:a51c77007319 73 #define TPE_BitNumber 0x00
mbed_official 52:a51c77007319 74 #define CR_TPE_BB (PERIPH_BB_BASE + (CR_OFFSET * 32) + (TPE_BitNumber * 4))
mbed_official 52:a51c77007319 75
mbed_official 52:a51c77007319 76 /* --- CSR Register ---*/
mbed_official 52:a51c77007319 77
mbed_official 52:a51c77007319 78 /* Alias word address of TPIE bit */
mbed_official 52:a51c77007319 79 #define CSR_OFFSET (BKP_OFFSET + 0x34)
mbed_official 52:a51c77007319 80 #define TPIE_BitNumber 0x02
mbed_official 52:a51c77007319 81 #define CSR_TPIE_BB (PERIPH_BB_BASE + (CSR_OFFSET * 32) + (TPIE_BitNumber * 4))
mbed_official 52:a51c77007319 82
mbed_official 52:a51c77007319 83 /* Alias word address of TIF bit */
mbed_official 52:a51c77007319 84 #define TIF_BitNumber 0x09
mbed_official 52:a51c77007319 85 #define CSR_TIF_BB (PERIPH_BB_BASE + (CSR_OFFSET * 32) + (TIF_BitNumber * 4))
mbed_official 52:a51c77007319 86
mbed_official 52:a51c77007319 87 /* Alias word address of TEF bit */
mbed_official 52:a51c77007319 88 #define TEF_BitNumber 0x08
mbed_official 52:a51c77007319 89 #define CSR_TEF_BB (PERIPH_BB_BASE + (CSR_OFFSET * 32) + (TEF_BitNumber * 4))
mbed_official 52:a51c77007319 90
mbed_official 52:a51c77007319 91 /* ---------------------- BKP registers bit mask ------------------------ */
mbed_official 52:a51c77007319 92
mbed_official 52:a51c77007319 93 /* RTCCR register bit mask */
mbed_official 52:a51c77007319 94 #define RTCCR_CAL_MASK ((uint16_t)0xFF80)
mbed_official 52:a51c77007319 95 #define RTCCR_MASK ((uint16_t)0xFC7F)
mbed_official 52:a51c77007319 96
mbed_official 52:a51c77007319 97 /**
mbed_official 52:a51c77007319 98 * @}
mbed_official 52:a51c77007319 99 */
mbed_official 52:a51c77007319 100
mbed_official 52:a51c77007319 101
mbed_official 52:a51c77007319 102 /** @defgroup BKP_Private_Macros
mbed_official 52:a51c77007319 103 * @{
mbed_official 52:a51c77007319 104 */
mbed_official 52:a51c77007319 105
mbed_official 52:a51c77007319 106 /**
mbed_official 52:a51c77007319 107 * @}
mbed_official 52:a51c77007319 108 */
mbed_official 52:a51c77007319 109
mbed_official 52:a51c77007319 110 /** @defgroup BKP_Private_Variables
mbed_official 52:a51c77007319 111 * @{
mbed_official 52:a51c77007319 112 */
mbed_official 52:a51c77007319 113
mbed_official 52:a51c77007319 114 /**
mbed_official 52:a51c77007319 115 * @}
mbed_official 52:a51c77007319 116 */
mbed_official 52:a51c77007319 117
mbed_official 52:a51c77007319 118 /** @defgroup BKP_Private_FunctionPrototypes
mbed_official 52:a51c77007319 119 * @{
mbed_official 52:a51c77007319 120 */
mbed_official 52:a51c77007319 121
mbed_official 52:a51c77007319 122 /**
mbed_official 52:a51c77007319 123 * @}
mbed_official 52:a51c77007319 124 */
mbed_official 52:a51c77007319 125
mbed_official 52:a51c77007319 126 /** @defgroup BKP_Private_Functions
mbed_official 52:a51c77007319 127 * @{
mbed_official 52:a51c77007319 128 */
mbed_official 52:a51c77007319 129
mbed_official 52:a51c77007319 130 /**
mbed_official 52:a51c77007319 131 * @brief Deinitializes the BKP peripheral registers to their default reset values.
mbed_official 52:a51c77007319 132 * @param None
mbed_official 52:a51c77007319 133 * @retval None
mbed_official 52:a51c77007319 134 */
mbed_official 52:a51c77007319 135 void BKP_DeInit(void)
mbed_official 52:a51c77007319 136 {
mbed_official 52:a51c77007319 137 RCC_BackupResetCmd(ENABLE);
mbed_official 52:a51c77007319 138 RCC_BackupResetCmd(DISABLE);
mbed_official 52:a51c77007319 139 }
mbed_official 52:a51c77007319 140
mbed_official 52:a51c77007319 141 /**
mbed_official 52:a51c77007319 142 * @brief Configures the Tamper Pin active level.
mbed_official 52:a51c77007319 143 * @param BKP_TamperPinLevel: specifies the Tamper Pin active level.
mbed_official 52:a51c77007319 144 * This parameter can be one of the following values:
mbed_official 52:a51c77007319 145 * @arg BKP_TamperPinLevel_High: Tamper pin active on high level
mbed_official 52:a51c77007319 146 * @arg BKP_TamperPinLevel_Low: Tamper pin active on low level
mbed_official 52:a51c77007319 147 * @retval None
mbed_official 52:a51c77007319 148 */
mbed_official 52:a51c77007319 149 void BKP_TamperPinLevelConfig(uint16_t BKP_TamperPinLevel)
mbed_official 52:a51c77007319 150 {
mbed_official 52:a51c77007319 151 /* Check the parameters */
mbed_official 52:a51c77007319 152 assert_param(IS_BKP_TAMPER_PIN_LEVEL(BKP_TamperPinLevel));
mbed_official 52:a51c77007319 153 *(__IO uint32_t *) CR_TPAL_BB = BKP_TamperPinLevel;
mbed_official 52:a51c77007319 154 }
mbed_official 52:a51c77007319 155
mbed_official 52:a51c77007319 156 /**
mbed_official 52:a51c77007319 157 * @brief Enables or disables the Tamper Pin activation.
mbed_official 52:a51c77007319 158 * @param NewState: new state of the Tamper Pin activation.
mbed_official 52:a51c77007319 159 * This parameter can be: ENABLE or DISABLE.
mbed_official 52:a51c77007319 160 * @retval None
mbed_official 52:a51c77007319 161 */
mbed_official 52:a51c77007319 162 void BKP_TamperPinCmd(FunctionalState NewState)
mbed_official 52:a51c77007319 163 {
mbed_official 52:a51c77007319 164 /* Check the parameters */
mbed_official 52:a51c77007319 165 assert_param(IS_FUNCTIONAL_STATE(NewState));
mbed_official 52:a51c77007319 166 *(__IO uint32_t *) CR_TPE_BB = (uint32_t)NewState;
mbed_official 52:a51c77007319 167 }
mbed_official 52:a51c77007319 168
mbed_official 52:a51c77007319 169 /**
mbed_official 52:a51c77007319 170 * @brief Enables or disables the Tamper Pin Interrupt.
mbed_official 52:a51c77007319 171 * @param NewState: new state of the Tamper Pin Interrupt.
mbed_official 52:a51c77007319 172 * This parameter can be: ENABLE or DISABLE.
mbed_official 52:a51c77007319 173 * @retval None
mbed_official 52:a51c77007319 174 */
mbed_official 52:a51c77007319 175 void BKP_ITConfig(FunctionalState NewState)
mbed_official 52:a51c77007319 176 {
mbed_official 52:a51c77007319 177 /* Check the parameters */
mbed_official 52:a51c77007319 178 assert_param(IS_FUNCTIONAL_STATE(NewState));
mbed_official 52:a51c77007319 179 *(__IO uint32_t *) CSR_TPIE_BB = (uint32_t)NewState;
mbed_official 52:a51c77007319 180 }
mbed_official 52:a51c77007319 181
mbed_official 52:a51c77007319 182 /**
mbed_official 52:a51c77007319 183 * @brief Select the RTC output source to output on the Tamper pin.
mbed_official 52:a51c77007319 184 * @param BKP_RTCOutputSource: specifies the RTC output source.
mbed_official 52:a51c77007319 185 * This parameter can be one of the following values:
mbed_official 52:a51c77007319 186 * @arg BKP_RTCOutputSource_None: no RTC output on the Tamper pin.
mbed_official 52:a51c77007319 187 * @arg BKP_RTCOutputSource_CalibClock: output the RTC clock with frequency
mbed_official 52:a51c77007319 188 * divided by 64 on the Tamper pin.
mbed_official 52:a51c77007319 189 * @arg BKP_RTCOutputSource_Alarm: output the RTC Alarm pulse signal on
mbed_official 52:a51c77007319 190 * the Tamper pin.
mbed_official 52:a51c77007319 191 * @arg BKP_RTCOutputSource_Second: output the RTC Second pulse signal on
mbed_official 52:a51c77007319 192 * the Tamper pin.
mbed_official 52:a51c77007319 193 * @retval None
mbed_official 52:a51c77007319 194 */
mbed_official 52:a51c77007319 195 void BKP_RTCOutputConfig(uint16_t BKP_RTCOutputSource)
mbed_official 52:a51c77007319 196 {
mbed_official 52:a51c77007319 197 uint16_t tmpreg = 0;
mbed_official 52:a51c77007319 198 /* Check the parameters */
mbed_official 52:a51c77007319 199 assert_param(IS_BKP_RTC_OUTPUT_SOURCE(BKP_RTCOutputSource));
mbed_official 52:a51c77007319 200 tmpreg = BKP->RTCCR;
mbed_official 52:a51c77007319 201 /* Clear CCO, ASOE and ASOS bits */
mbed_official 52:a51c77007319 202 tmpreg &= RTCCR_MASK;
mbed_official 52:a51c77007319 203
mbed_official 52:a51c77007319 204 /* Set CCO, ASOE and ASOS bits according to BKP_RTCOutputSource value */
mbed_official 52:a51c77007319 205 tmpreg |= BKP_RTCOutputSource;
mbed_official 52:a51c77007319 206 /* Store the new value */
mbed_official 52:a51c77007319 207 BKP->RTCCR = tmpreg;
mbed_official 52:a51c77007319 208 }
mbed_official 52:a51c77007319 209
mbed_official 52:a51c77007319 210 /**
mbed_official 52:a51c77007319 211 * @brief Sets RTC Clock Calibration value.
mbed_official 52:a51c77007319 212 * @param CalibrationValue: specifies the RTC Clock Calibration value.
mbed_official 52:a51c77007319 213 * This parameter must be a number between 0 and 0x7F.
mbed_official 52:a51c77007319 214 * @retval None
mbed_official 52:a51c77007319 215 */
mbed_official 52:a51c77007319 216 void BKP_SetRTCCalibrationValue(uint8_t CalibrationValue)
mbed_official 52:a51c77007319 217 {
mbed_official 52:a51c77007319 218 uint16_t tmpreg = 0;
mbed_official 52:a51c77007319 219 /* Check the parameters */
mbed_official 52:a51c77007319 220 assert_param(IS_BKP_CALIBRATION_VALUE(CalibrationValue));
mbed_official 52:a51c77007319 221 tmpreg = BKP->RTCCR;
mbed_official 52:a51c77007319 222 /* Clear CAL[6:0] bits */
mbed_official 52:a51c77007319 223 tmpreg &= RTCCR_CAL_MASK;
mbed_official 52:a51c77007319 224 /* Set CAL[6:0] bits according to CalibrationValue value */
mbed_official 52:a51c77007319 225 tmpreg |= CalibrationValue;
mbed_official 52:a51c77007319 226 /* Store the new value */
mbed_official 52:a51c77007319 227 BKP->RTCCR = tmpreg;
mbed_official 52:a51c77007319 228 }
mbed_official 52:a51c77007319 229
mbed_official 52:a51c77007319 230 /**
mbed_official 52:a51c77007319 231 * @brief Writes user data to the specified Data Backup Register.
mbed_official 52:a51c77007319 232 * @param BKP_DR: specifies the Data Backup Register.
mbed_official 52:a51c77007319 233 * This parameter can be BKP_DRx where x:[1, 42]
mbed_official 52:a51c77007319 234 * @param Data: data to write
mbed_official 52:a51c77007319 235 * @retval None
mbed_official 52:a51c77007319 236 */
mbed_official 52:a51c77007319 237 void BKP_WriteBackupRegister(uint16_t BKP_DR, uint16_t Data)
mbed_official 52:a51c77007319 238 {
mbed_official 52:a51c77007319 239 __IO uint32_t tmp = 0;
mbed_official 52:a51c77007319 240
mbed_official 52:a51c77007319 241 /* Check the parameters */
mbed_official 52:a51c77007319 242 assert_param(IS_BKP_DR(BKP_DR));
mbed_official 52:a51c77007319 243
mbed_official 52:a51c77007319 244 tmp = (uint32_t)BKP_BASE;
mbed_official 52:a51c77007319 245 tmp += BKP_DR;
mbed_official 52:a51c77007319 246
mbed_official 52:a51c77007319 247 *(__IO uint32_t *) tmp = Data;
mbed_official 52:a51c77007319 248 }
mbed_official 52:a51c77007319 249
mbed_official 52:a51c77007319 250 /**
mbed_official 52:a51c77007319 251 * @brief Reads data from the specified Data Backup Register.
mbed_official 52:a51c77007319 252 * @param BKP_DR: specifies the Data Backup Register.
mbed_official 52:a51c77007319 253 * This parameter can be BKP_DRx where x:[1, 42]
mbed_official 52:a51c77007319 254 * @retval The content of the specified Data Backup Register
mbed_official 52:a51c77007319 255 */
mbed_official 52:a51c77007319 256 uint16_t BKP_ReadBackupRegister(uint16_t BKP_DR)
mbed_official 52:a51c77007319 257 {
mbed_official 52:a51c77007319 258 __IO uint32_t tmp = 0;
mbed_official 52:a51c77007319 259
mbed_official 52:a51c77007319 260 /* Check the parameters */
mbed_official 52:a51c77007319 261 assert_param(IS_BKP_DR(BKP_DR));
mbed_official 52:a51c77007319 262
mbed_official 52:a51c77007319 263 tmp = (uint32_t)BKP_BASE;
mbed_official 52:a51c77007319 264 tmp += BKP_DR;
mbed_official 52:a51c77007319 265
mbed_official 52:a51c77007319 266 return (*(__IO uint16_t *) tmp);
mbed_official 52:a51c77007319 267 }
mbed_official 52:a51c77007319 268
mbed_official 52:a51c77007319 269 /**
mbed_official 52:a51c77007319 270 * @brief Checks whether the Tamper Pin Event flag is set or not.
mbed_official 52:a51c77007319 271 * @param None
mbed_official 52:a51c77007319 272 * @retval The new state of the Tamper Pin Event flag (SET or RESET).
mbed_official 52:a51c77007319 273 */
mbed_official 52:a51c77007319 274 FlagStatus BKP_GetFlagStatus(void)
mbed_official 52:a51c77007319 275 {
mbed_official 52:a51c77007319 276 return (FlagStatus)(*(__IO uint32_t *) CSR_TEF_BB);
mbed_official 52:a51c77007319 277 }
mbed_official 52:a51c77007319 278
mbed_official 52:a51c77007319 279 /**
mbed_official 52:a51c77007319 280 * @brief Clears Tamper Pin Event pending flag.
mbed_official 52:a51c77007319 281 * @param None
mbed_official 52:a51c77007319 282 * @retval None
mbed_official 52:a51c77007319 283 */
mbed_official 52:a51c77007319 284 void BKP_ClearFlag(void)
mbed_official 52:a51c77007319 285 {
mbed_official 52:a51c77007319 286 /* Set CTE bit to clear Tamper Pin Event flag */
mbed_official 52:a51c77007319 287 BKP->CSR |= BKP_CSR_CTE;
mbed_official 52:a51c77007319 288 }
mbed_official 52:a51c77007319 289
mbed_official 52:a51c77007319 290 /**
mbed_official 52:a51c77007319 291 * @brief Checks whether the Tamper Pin Interrupt has occurred or not.
mbed_official 52:a51c77007319 292 * @param None
mbed_official 52:a51c77007319 293 * @retval The new state of the Tamper Pin Interrupt (SET or RESET).
mbed_official 52:a51c77007319 294 */
mbed_official 52:a51c77007319 295 ITStatus BKP_GetITStatus(void)
mbed_official 52:a51c77007319 296 {
mbed_official 52:a51c77007319 297 return (ITStatus)(*(__IO uint32_t *) CSR_TIF_BB);
mbed_official 52:a51c77007319 298 }
mbed_official 52:a51c77007319 299
mbed_official 52:a51c77007319 300 /**
mbed_official 52:a51c77007319 301 * @brief Clears Tamper Pin Interrupt pending bit.
mbed_official 52:a51c77007319 302 * @param None
mbed_official 52:a51c77007319 303 * @retval None
mbed_official 52:a51c77007319 304 */
mbed_official 52:a51c77007319 305 void BKP_ClearITPendingBit(void)
mbed_official 52:a51c77007319 306 {
mbed_official 52:a51c77007319 307 /* Set CTI bit to clear Tamper Pin Interrupt pending bit */
mbed_official 52:a51c77007319 308 BKP->CSR |= BKP_CSR_CTI;
mbed_official 52:a51c77007319 309 }
mbed_official 52:a51c77007319 310
mbed_official 52:a51c77007319 311 /**
mbed_official 52:a51c77007319 312 * @}
mbed_official 52:a51c77007319 313 */
mbed_official 52:a51c77007319 314
mbed_official 52:a51c77007319 315 /**
mbed_official 52:a51c77007319 316 * @}
mbed_official 52:a51c77007319 317 */
mbed_official 52:a51c77007319 318
mbed_official 52:a51c77007319 319 /**
mbed_official 52:a51c77007319 320 * @}
mbed_official 52:a51c77007319 321 */
mbed_official 52:a51c77007319 322
mbed_official 84:f54042cbc282 323 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/