annotate Small_CPU/Inc/system_stm32f4xx.h @ 261:cc2406b835ff bm-3

Bugfix: do not reset saturation on surfacing Commit 822416168585 introduced a subtle bug. On surfacing, the value of saturation was reset to 0. This is prefect proof why global data is a dangerous thing, and subtle changes can introduce seemingly unrelated bugs. While it would be much better to factor out as much as possible global data, the fix here does not do that. Simply, the bug is fixed without touching the rather complex gTissue_nitrogen_bar/gTissue_helium_bar handling. Signed-off-by: Jan Mulder <jlmulder@xs4all.nl>
author Jan Mulder <jlmulder@xs4all.nl>
date Tue, 23 Apr 2019 13:05:20 +0200
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38
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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 * @version V1.0.0
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6 * @date 30-September-2011
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7 * @brief CMSIS Cortex-M4 Device System Source File for STM32F4xx devices.
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8 ******************************************************************************
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9 * @attention
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10 *
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11 * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
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12 * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
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13 * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
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14 * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
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15 * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
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16 * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
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17 *
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18 * <h2><center>&copy; COPYRIGHT 2011 STMicroelectronics</center></h2>
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19 ******************************************************************************
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20 */
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21
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22 /** @addtogroup CMSIS
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23 * @{
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24 */
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25
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26 /** @addtogroup stm32f4xx_system
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27 * @{
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28 */
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29
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30 /**
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31 * @brief Define to prevent recursive inclusion
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32 */
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33 #ifndef SYSTEM_STM32F4XX_H
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34 #define SYSTEM_STM32F4XX_H
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35
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36 #ifdef __cplusplus
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37 extern "C" {
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38 #endif
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39
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40 /** @addtogroup STM32F4xx_System_Includes
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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 * @}
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46 */
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47
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48
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49 /** @addtogroup STM32F4xx_System_Exported_types
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50 * @{
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51 */
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52
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53 extern uint32_t SystemCoreClock; /*!< System Clock Frequency (Core Clock) */
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54
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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 /** @addtogroup STM32F4xx_System_Exported_Constants
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61 * @{
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62 */
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63
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64 /**
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65 * @}
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66 */
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67
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68 /** @addtogroup STM32F4xx_System_Exported_Macros
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69 * @{
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70 */
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71
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72 /**
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73 * @}
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74 */
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75
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76 /** @addtogroup STM32F4xx_System_Exported_Functions
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77 * @{
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78 */
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79
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80 extern void SystemInit(void);
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81 extern void SystemCoreClockUpdate(void);
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82 /**
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83 * @}
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84 */
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85
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86 #ifdef __cplusplus
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87 }
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88 #endif
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89
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90 #endif /* SYSTEM_STM32F4XX_H */
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91
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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 /******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/