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annotate Common/Drivers/STM32F4xx/Include/system_stm32f4xx.h @ 307:b6436edfb2c0 cleanup-4

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cleanup: factor out unused stopwatch code Visually, this looks a bit of a dangerous cleanup, but its not :-) To explain this cleanup: stopwatch_seconds is never used, so assign to it is useless, and the variable can be removed. Now, stopwatch_start_at_this_dive_time_seconds is not used any more, so remove it as well. Now, look at the boolResetStopwatch code. It is used but only to reset itself. This makes the whole stopwatch block in data_exchange_main.c a useless thing. All the other cleanup is trivial. Signed-off-by: Jan Mulder <jlmulder@xs4all.nl>
author Jan Mulder <jlmulder@xs4all.nl>
date Wed, 22 May 2019 22:22:15 +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****/