system_stm32f7xx.h 3.7 KB

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  1. /**
  2. ******************************************************************************
  3. * @file system_stm32f7xx.h
  4. * @author MCD Application Team
  5. * @version V1.2.0
  6. * @date 30-December-2016
  7. * @brief CMSIS Cortex-M7 Device System Source File for STM32F7xx devices.
  8. ******************************************************************************
  9. * @attention
  10. *
  11. * <h2><center>&copy; COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
  12. *
  13. * Redistribution and use in source and binary forms, with or without modification,
  14. * are permitted provided that the following conditions are met:
  15. * 1. Redistributions of source code must retain the above copyright notice,
  16. * this list of conditions and the following disclaimer.
  17. * 2. Redistributions in binary form must reproduce the above copyright notice,
  18. * this list of conditions and the following disclaimer in the documentation
  19. * and/or other materials provided with the distribution.
  20. * 3. Neither the name of STMicroelectronics nor the names of its contributors
  21. * may be used to endorse or promote products derived from this software
  22. * without specific prior written permission.
  23. *
  24. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  25. * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  26. * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  27. * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  28. * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  29. * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  30. * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  31. * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  32. * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  33. * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  34. *
  35. ******************************************************************************
  36. */
  37. /** @addtogroup CMSIS
  38. * @{
  39. */
  40. /** @addtogroup stm32f7xx_system
  41. * @{
  42. */
  43. /**
  44. * @brief Define to prevent recursive inclusion
  45. */
  46. #ifndef __SYSTEM_STM32F7XX_H
  47. #define __SYSTEM_STM32F7XX_H
  48. #ifdef __cplusplus
  49. extern "C" {
  50. #endif
  51. /** @addtogroup STM32F7xx_System_Includes
  52. * @{
  53. */
  54. /**
  55. * @}
  56. */
  57. /** @addtogroup STM32F7xx_System_Exported_Variables
  58. * @{
  59. */
  60. /* The SystemCoreClock variable is updated in three ways:
  61. 1) by calling CMSIS function SystemCoreClockUpdate()
  62. 2) by calling HAL API function HAL_RCC_GetSysClockFreq()
  63. 3) each time HAL_RCC_ClockConfig() is called to configure the system clock frequency
  64. Note: If you use this function to configure the system clock; then there
  65. is no need to call the 2 first functions listed above, since SystemCoreClock
  66. variable is updated automatically.
  67. */
  68. extern volatile uint32_t SystemCoreClock; /*!< System Clock Frequency (Core Clock) */
  69. extern const uint8_t AHBPrescTable[16]; /*!< AHB prescalers table values */
  70. extern const uint8_t APBPrescTable[8]; /*!< APB prescalers table values */
  71. /**
  72. * @}
  73. */
  74. /** @addtogroup STM32F7xx_System_Exported_Constants
  75. * @{
  76. */
  77. /**
  78. * @}
  79. */
  80. /** @addtogroup STM32F7xx_System_Exported_Macros
  81. * @{
  82. */
  83. /**
  84. * @}
  85. */
  86. /** @addtogroup STM32F7xx_System_Exported_Functions
  87. * @{
  88. */
  89. extern void SystemInit(void);
  90. extern void SystemCoreClockUpdate(void);
  91. /**
  92. * @}
  93. */
  94. #ifdef __cplusplus
  95. }
  96. #endif
  97. #endif /*__SYSTEM_STM32F7XX_H */
  98. /**
  99. * @}
  100. */
  101. /**
  102. * @}
  103. */
  104. /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/