mbed library sources
Dependents: frdm_kl05z_gpio_test
Fork of mbed-src by
targets/cmsis/TARGET_STM/TARGET_DISCO_F100RB/stm32f10x_iwdg.c@323:9e901b0a5aa1, 2014-09-13 (annotated)
- Committer:
- shaoziyang
- Date:
- Sat Sep 13 14:25:46 2014 +0000
- Revision:
- 323:9e901b0a5aa1
- Parent:
- 126:549ba18ddd81
test with CLOCK_SETUP = 0
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
mbed_official | 126:549ba18ddd81 | 1 | /** |
mbed_official | 126:549ba18ddd81 | 2 | ****************************************************************************** |
mbed_official | 126:549ba18ddd81 | 3 | * @file stm32f10x_iwdg.c |
mbed_official | 126:549ba18ddd81 | 4 | * @author MCD Application Team |
mbed_official | 126:549ba18ddd81 | 5 | * @version V3.6.1 |
mbed_official | 126:549ba18ddd81 | 6 | * @date 05-March-2012 |
mbed_official | 126:549ba18ddd81 | 7 | * @brief This file provides all the IWDG firmware functions. |
mbed_official | 126:549ba18ddd81 | 8 | ******************************************************************************* |
mbed_official | 126:549ba18ddd81 | 9 | * Copyright (c) 2014, STMicroelectronics |
mbed_official | 126:549ba18ddd81 | 10 | * All rights reserved. |
mbed_official | 126:549ba18ddd81 | 11 | * |
mbed_official | 126:549ba18ddd81 | 12 | * Redistribution and use in source and binary forms, with or without |
mbed_official | 126:549ba18ddd81 | 13 | * modification, are permitted provided that the following conditions are met: |
mbed_official | 126:549ba18ddd81 | 14 | * |
mbed_official | 126:549ba18ddd81 | 15 | * 1. Redistributions of source code must retain the above copyright notice, |
mbed_official | 126:549ba18ddd81 | 16 | * this list of conditions and the following disclaimer. |
mbed_official | 126:549ba18ddd81 | 17 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
mbed_official | 126:549ba18ddd81 | 18 | * this list of conditions and the following disclaimer in the documentation |
mbed_official | 126:549ba18ddd81 | 19 | * and/or other materials provided with the distribution. |
mbed_official | 126:549ba18ddd81 | 20 | * 3. Neither the name of STMicroelectronics nor the names of its contributors |
mbed_official | 126:549ba18ddd81 | 21 | * may be used to endorse or promote products derived from this software |
mbed_official | 126:549ba18ddd81 | 22 | * without specific prior written permission. |
mbed_official | 126:549ba18ddd81 | 23 | * |
mbed_official | 126:549ba18ddd81 | 24 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
mbed_official | 126:549ba18ddd81 | 25 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
mbed_official | 126:549ba18ddd81 | 26 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
mbed_official | 126:549ba18ddd81 | 27 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
mbed_official | 126:549ba18ddd81 | 28 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
mbed_official | 126:549ba18ddd81 | 29 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
mbed_official | 126:549ba18ddd81 | 30 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
mbed_official | 126:549ba18ddd81 | 31 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
mbed_official | 126:549ba18ddd81 | 32 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
mbed_official | 126:549ba18ddd81 | 33 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
mbed_official | 126:549ba18ddd81 | 34 | ******************************************************************************* |
mbed_official | 126:549ba18ddd81 | 35 | */ |
mbed_official | 126:549ba18ddd81 | 36 | |
mbed_official | 126:549ba18ddd81 | 37 | /* Includes ------------------------------------------------------------------*/ |
mbed_official | 126:549ba18ddd81 | 38 | #include "stm32f10x_iwdg.h" |
mbed_official | 126:549ba18ddd81 | 39 | |
mbed_official | 126:549ba18ddd81 | 40 | /** @addtogroup STM32F10x_StdPeriph_Driver |
mbed_official | 126:549ba18ddd81 | 41 | * @{ |
mbed_official | 126:549ba18ddd81 | 42 | */ |
mbed_official | 126:549ba18ddd81 | 43 | |
mbed_official | 126:549ba18ddd81 | 44 | /** @defgroup IWDG |
mbed_official | 126:549ba18ddd81 | 45 | * @brief IWDG driver modules |
mbed_official | 126:549ba18ddd81 | 46 | * @{ |
mbed_official | 126:549ba18ddd81 | 47 | */ |
mbed_official | 126:549ba18ddd81 | 48 | |
mbed_official | 126:549ba18ddd81 | 49 | /** @defgroup IWDG_Private_TypesDefinitions |
mbed_official | 126:549ba18ddd81 | 50 | * @{ |
mbed_official | 126:549ba18ddd81 | 51 | */ |
mbed_official | 126:549ba18ddd81 | 52 | |
mbed_official | 126:549ba18ddd81 | 53 | /** |
mbed_official | 126:549ba18ddd81 | 54 | * @} |
mbed_official | 126:549ba18ddd81 | 55 | */ |
mbed_official | 126:549ba18ddd81 | 56 | |
mbed_official | 126:549ba18ddd81 | 57 | /** @defgroup IWDG_Private_Defines |
mbed_official | 126:549ba18ddd81 | 58 | * @{ |
mbed_official | 126:549ba18ddd81 | 59 | */ |
mbed_official | 126:549ba18ddd81 | 60 | |
mbed_official | 126:549ba18ddd81 | 61 | /* ---------------------- IWDG registers bit mask ----------------------------*/ |
mbed_official | 126:549ba18ddd81 | 62 | |
mbed_official | 126:549ba18ddd81 | 63 | /* KR register bit mask */ |
mbed_official | 126:549ba18ddd81 | 64 | #define KR_KEY_Reload ((uint16_t)0xAAAA) |
mbed_official | 126:549ba18ddd81 | 65 | #define KR_KEY_Enable ((uint16_t)0xCCCC) |
mbed_official | 126:549ba18ddd81 | 66 | |
mbed_official | 126:549ba18ddd81 | 67 | /** |
mbed_official | 126:549ba18ddd81 | 68 | * @} |
mbed_official | 126:549ba18ddd81 | 69 | */ |
mbed_official | 126:549ba18ddd81 | 70 | |
mbed_official | 126:549ba18ddd81 | 71 | /** @defgroup IWDG_Private_Macros |
mbed_official | 126:549ba18ddd81 | 72 | * @{ |
mbed_official | 126:549ba18ddd81 | 73 | */ |
mbed_official | 126:549ba18ddd81 | 74 | |
mbed_official | 126:549ba18ddd81 | 75 | /** |
mbed_official | 126:549ba18ddd81 | 76 | * @} |
mbed_official | 126:549ba18ddd81 | 77 | */ |
mbed_official | 126:549ba18ddd81 | 78 | |
mbed_official | 126:549ba18ddd81 | 79 | /** @defgroup IWDG_Private_Variables |
mbed_official | 126:549ba18ddd81 | 80 | * @{ |
mbed_official | 126:549ba18ddd81 | 81 | */ |
mbed_official | 126:549ba18ddd81 | 82 | |
mbed_official | 126:549ba18ddd81 | 83 | /** |
mbed_official | 126:549ba18ddd81 | 84 | * @} |
mbed_official | 126:549ba18ddd81 | 85 | */ |
mbed_official | 126:549ba18ddd81 | 86 | |
mbed_official | 126:549ba18ddd81 | 87 | /** @defgroup IWDG_Private_FunctionPrototypes |
mbed_official | 126:549ba18ddd81 | 88 | * @{ |
mbed_official | 126:549ba18ddd81 | 89 | */ |
mbed_official | 126:549ba18ddd81 | 90 | |
mbed_official | 126:549ba18ddd81 | 91 | /** |
mbed_official | 126:549ba18ddd81 | 92 | * @} |
mbed_official | 126:549ba18ddd81 | 93 | */ |
mbed_official | 126:549ba18ddd81 | 94 | |
mbed_official | 126:549ba18ddd81 | 95 | /** @defgroup IWDG_Private_Functions |
mbed_official | 126:549ba18ddd81 | 96 | * @{ |
mbed_official | 126:549ba18ddd81 | 97 | */ |
mbed_official | 126:549ba18ddd81 | 98 | |
mbed_official | 126:549ba18ddd81 | 99 | /** |
mbed_official | 126:549ba18ddd81 | 100 | * @brief Enables or disables write access to IWDG_PR and IWDG_RLR registers. |
mbed_official | 126:549ba18ddd81 | 101 | * @param IWDG_WriteAccess: new state of write access to IWDG_PR and IWDG_RLR registers. |
mbed_official | 126:549ba18ddd81 | 102 | * This parameter can be one of the following values: |
mbed_official | 126:549ba18ddd81 | 103 | * @arg IWDG_WriteAccess_Enable: Enable write access to IWDG_PR and IWDG_RLR registers |
mbed_official | 126:549ba18ddd81 | 104 | * @arg IWDG_WriteAccess_Disable: Disable write access to IWDG_PR and IWDG_RLR registers |
mbed_official | 126:549ba18ddd81 | 105 | * @retval None |
mbed_official | 126:549ba18ddd81 | 106 | */ |
mbed_official | 126:549ba18ddd81 | 107 | void IWDG_WriteAccessCmd(uint16_t IWDG_WriteAccess) |
mbed_official | 126:549ba18ddd81 | 108 | { |
mbed_official | 126:549ba18ddd81 | 109 | /* Check the parameters */ |
mbed_official | 126:549ba18ddd81 | 110 | assert_param(IS_IWDG_WRITE_ACCESS(IWDG_WriteAccess)); |
mbed_official | 126:549ba18ddd81 | 111 | IWDG->KR = IWDG_WriteAccess; |
mbed_official | 126:549ba18ddd81 | 112 | } |
mbed_official | 126:549ba18ddd81 | 113 | |
mbed_official | 126:549ba18ddd81 | 114 | /** |
mbed_official | 126:549ba18ddd81 | 115 | * @brief Sets IWDG Prescaler value. |
mbed_official | 126:549ba18ddd81 | 116 | * @param IWDG_Prescaler: specifies the IWDG Prescaler value. |
mbed_official | 126:549ba18ddd81 | 117 | * This parameter can be one of the following values: |
mbed_official | 126:549ba18ddd81 | 118 | * @arg IWDG_Prescaler_4: IWDG prescaler set to 4 |
mbed_official | 126:549ba18ddd81 | 119 | * @arg IWDG_Prescaler_8: IWDG prescaler set to 8 |
mbed_official | 126:549ba18ddd81 | 120 | * @arg IWDG_Prescaler_16: IWDG prescaler set to 16 |
mbed_official | 126:549ba18ddd81 | 121 | * @arg IWDG_Prescaler_32: IWDG prescaler set to 32 |
mbed_official | 126:549ba18ddd81 | 122 | * @arg IWDG_Prescaler_64: IWDG prescaler set to 64 |
mbed_official | 126:549ba18ddd81 | 123 | * @arg IWDG_Prescaler_128: IWDG prescaler set to 128 |
mbed_official | 126:549ba18ddd81 | 124 | * @arg IWDG_Prescaler_256: IWDG prescaler set to 256 |
mbed_official | 126:549ba18ddd81 | 125 | * @retval None |
mbed_official | 126:549ba18ddd81 | 126 | */ |
mbed_official | 126:549ba18ddd81 | 127 | void IWDG_SetPrescaler(uint8_t IWDG_Prescaler) |
mbed_official | 126:549ba18ddd81 | 128 | { |
mbed_official | 126:549ba18ddd81 | 129 | /* Check the parameters */ |
mbed_official | 126:549ba18ddd81 | 130 | assert_param(IS_IWDG_PRESCALER(IWDG_Prescaler)); |
mbed_official | 126:549ba18ddd81 | 131 | IWDG->PR = IWDG_Prescaler; |
mbed_official | 126:549ba18ddd81 | 132 | } |
mbed_official | 126:549ba18ddd81 | 133 | |
mbed_official | 126:549ba18ddd81 | 134 | /** |
mbed_official | 126:549ba18ddd81 | 135 | * @brief Sets IWDG Reload value. |
mbed_official | 126:549ba18ddd81 | 136 | * @param Reload: specifies the IWDG Reload value. |
mbed_official | 126:549ba18ddd81 | 137 | * This parameter must be a number between 0 and 0x0FFF. |
mbed_official | 126:549ba18ddd81 | 138 | * @retval None |
mbed_official | 126:549ba18ddd81 | 139 | */ |
mbed_official | 126:549ba18ddd81 | 140 | void IWDG_SetReload(uint16_t Reload) |
mbed_official | 126:549ba18ddd81 | 141 | { |
mbed_official | 126:549ba18ddd81 | 142 | /* Check the parameters */ |
mbed_official | 126:549ba18ddd81 | 143 | assert_param(IS_IWDG_RELOAD(Reload)); |
mbed_official | 126:549ba18ddd81 | 144 | IWDG->RLR = Reload; |
mbed_official | 126:549ba18ddd81 | 145 | } |
mbed_official | 126:549ba18ddd81 | 146 | |
mbed_official | 126:549ba18ddd81 | 147 | /** |
mbed_official | 126:549ba18ddd81 | 148 | * @brief Reloads IWDG counter with value defined in the reload register |
mbed_official | 126:549ba18ddd81 | 149 | * (write access to IWDG_PR and IWDG_RLR registers disabled). |
mbed_official | 126:549ba18ddd81 | 150 | * @param None |
mbed_official | 126:549ba18ddd81 | 151 | * @retval None |
mbed_official | 126:549ba18ddd81 | 152 | */ |
mbed_official | 126:549ba18ddd81 | 153 | void IWDG_ReloadCounter(void) |
mbed_official | 126:549ba18ddd81 | 154 | { |
mbed_official | 126:549ba18ddd81 | 155 | IWDG->KR = KR_KEY_Reload; |
mbed_official | 126:549ba18ddd81 | 156 | } |
mbed_official | 126:549ba18ddd81 | 157 | |
mbed_official | 126:549ba18ddd81 | 158 | /** |
mbed_official | 126:549ba18ddd81 | 159 | * @brief Enables IWDG (write access to IWDG_PR and IWDG_RLR registers disabled). |
mbed_official | 126:549ba18ddd81 | 160 | * @param None |
mbed_official | 126:549ba18ddd81 | 161 | * @retval None |
mbed_official | 126:549ba18ddd81 | 162 | */ |
mbed_official | 126:549ba18ddd81 | 163 | void IWDG_Enable(void) |
mbed_official | 126:549ba18ddd81 | 164 | { |
mbed_official | 126:549ba18ddd81 | 165 | IWDG->KR = KR_KEY_Enable; |
mbed_official | 126:549ba18ddd81 | 166 | } |
mbed_official | 126:549ba18ddd81 | 167 | |
mbed_official | 126:549ba18ddd81 | 168 | /** |
mbed_official | 126:549ba18ddd81 | 169 | * @brief Checks whether the specified IWDG flag is set or not. |
mbed_official | 126:549ba18ddd81 | 170 | * @param IWDG_FLAG: specifies the flag to check. |
mbed_official | 126:549ba18ddd81 | 171 | * This parameter can be one of the following values: |
mbed_official | 126:549ba18ddd81 | 172 | * @arg IWDG_FLAG_PVU: Prescaler Value Update on going |
mbed_official | 126:549ba18ddd81 | 173 | * @arg IWDG_FLAG_RVU: Reload Value Update on going |
mbed_official | 126:549ba18ddd81 | 174 | * @retval The new state of IWDG_FLAG (SET or RESET). |
mbed_official | 126:549ba18ddd81 | 175 | */ |
mbed_official | 126:549ba18ddd81 | 176 | FlagStatus IWDG_GetFlagStatus(uint16_t IWDG_FLAG) |
mbed_official | 126:549ba18ddd81 | 177 | { |
mbed_official | 126:549ba18ddd81 | 178 | FlagStatus bitstatus = RESET; |
mbed_official | 126:549ba18ddd81 | 179 | /* Check the parameters */ |
mbed_official | 126:549ba18ddd81 | 180 | assert_param(IS_IWDG_FLAG(IWDG_FLAG)); |
mbed_official | 126:549ba18ddd81 | 181 | if ((IWDG->SR & IWDG_FLAG) != (uint32_t)RESET) |
mbed_official | 126:549ba18ddd81 | 182 | { |
mbed_official | 126:549ba18ddd81 | 183 | bitstatus = SET; |
mbed_official | 126:549ba18ddd81 | 184 | } |
mbed_official | 126:549ba18ddd81 | 185 | else |
mbed_official | 126:549ba18ddd81 | 186 | { |
mbed_official | 126:549ba18ddd81 | 187 | bitstatus = RESET; |
mbed_official | 126:549ba18ddd81 | 188 | } |
mbed_official | 126:549ba18ddd81 | 189 | /* Return the flag status */ |
mbed_official | 126:549ba18ddd81 | 190 | return bitstatus; |
mbed_official | 126:549ba18ddd81 | 191 | } |
mbed_official | 126:549ba18ddd81 | 192 | |
mbed_official | 126:549ba18ddd81 | 193 | /** |
mbed_official | 126:549ba18ddd81 | 194 | * @} |
mbed_official | 126:549ba18ddd81 | 195 | */ |
mbed_official | 126:549ba18ddd81 | 196 | |
mbed_official | 126:549ba18ddd81 | 197 | /** |
mbed_official | 126:549ba18ddd81 | 198 | * @} |
mbed_official | 126:549ba18ddd81 | 199 | */ |
mbed_official | 126:549ba18ddd81 | 200 | |
mbed_official | 126:549ba18ddd81 | 201 | /** |
mbed_official | 126:549ba18ddd81 | 202 | * @} |
mbed_official | 126:549ba18ddd81 | 203 | */ |
mbed_official | 126:549ba18ddd81 | 204 | |
mbed_official | 126:549ba18ddd81 | 205 | /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |