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annotate Common/Drivers/STM32F4xx/Include/system_stm32f4xx.h @ 353:9c8e2e962f55 fix-merge-mess

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Added tag v1.5.0 release for changeset 143fe85f82a2 Signed-off-by: Jan Mulder <jlmulder@xs4all.nl>
author Jan Mulder <jlmulder@xs4all.nl>
date Tue, 08 Oct 2019 16:41:57 +0200
parents c78bcbd5deda
children 4e10a3e087a1
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1 /**
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2 ******************************************************************************
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3 * @file system_stm32f4xx.h
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4 * @author MCD Application Team
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5 * @brief CMSIS Cortex-M4 Device System Source File for STM32F4xx devices.
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6 ******************************************************************************
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7 * @attention
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8 *
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9 * <h2><center>&copy; COPYRIGHT(c) 2017 STMicroelectronics</center></h2>
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10 *
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11 * Redistribution and use in source and binary forms, with or without modification,
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12 * are permitted provided that the following conditions are met:
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13 * 1. Redistributions of source code must retain the above copyright notice,
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14 * this list of conditions and the following disclaimer.
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15 * 2. Redistributions in binary form must reproduce the above copyright notice,
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16 * this list of conditions and the following disclaimer in the documentation
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17 * and/or other materials provided with the distribution.
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18 * 3. Neither the name of STMicroelectronics nor the names of its contributors
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19 * may be used to endorse or promote products derived from this software
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20 * without specific prior written permission.
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21 *
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22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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23 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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25 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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28 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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29 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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32 *
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33 ******************************************************************************
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34 */
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35
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36 /** @addtogroup CMSIS
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37 * @{
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38 */
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39
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40 /** @addtogroup stm32f4xx_system
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41 * @{
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42 */
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43
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44 /**
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45 * @brief Define to prevent recursive inclusion
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46 */
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47 #ifndef __SYSTEM_STM32F4XX_H
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48 #define __SYSTEM_STM32F4XX_H
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49
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50 #ifdef __cplusplus
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51 extern "C" {
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52 #endif
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53
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54 /** @addtogroup STM32F4xx_System_Includes
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55 * @{
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56 */
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57
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58 /**
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59 * @}
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60 */
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61
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62
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63 /** @addtogroup STM32F4xx_System_Exported_types
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64 * @{
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65 */
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66 /* This variable is updated in three ways:
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67 1) by calling CMSIS function SystemCoreClockUpdate()
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68 2) by calling HAL API function HAL_RCC_GetSysClockFreq()
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69 3) each time HAL_RCC_ClockConfig() is called to configure the system clock frequency
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70 Note: If you use this function to configure the system clock; then there
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71 is no need to call the 2 first functions listed above, since SystemCoreClock
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72 variable is updated automatically.
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73 */
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74 extern uint32_t SystemCoreClock; /*!< System Clock Frequency (Core Clock) */
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75
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76 extern const uint8_t AHBPrescTable[16]; /*!< AHB prescalers table values */
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77 extern const uint8_t APBPrescTable[8]; /*!< APB prescalers table values */
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78
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79 /**
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80 * @}
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81 */
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82
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83 /** @addtogroup STM32F4xx_System_Exported_Constants
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84 * @{
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85 */
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86
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87 /**
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88 * @}
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89 */
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90
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91 /** @addtogroup STM32F4xx_System_Exported_Macros
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92 * @{
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93 */
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94
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95 /**
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96 * @}
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97 */
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98
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99 /** @addtogroup STM32F4xx_System_Exported_Functions
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100 * @{
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101 */
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102
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103 extern void SystemInit(void);
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104 extern void SystemCoreClockUpdate(void);
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105 /**
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106 * @}
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107 */
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108
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109 #ifdef __cplusplus
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110 }
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111 #endif
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112
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113 #endif /*__SYSTEM_STM32F4XX_H */
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114
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115 /**
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116 * @}
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117 */
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118
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119 /**
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120 * @}
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121 */
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122 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/