system_stm32f4xx.h 2.1 KB

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  1. /**
  2. ******************************************************************************
  3. * @file system_stm32f4xx.h
  4. * @author MCD Application Team
  5. * @version V1.8.0
  6. * @date 09-November-2016
  7. * @brief CMSIS Cortex-M4 Device System Source File for STM32F4xx devices.
  8. ******************************************************************************
  9. * @attention
  10. *
  11. * <h2><center>&copy; COPYRIGHT 2016 STMicroelectronics</center></h2>
  12. *
  13. * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
  14. * You may not use this file except in compliance with the License.
  15. * You may obtain a copy of the License at:
  16. *
  17. * http://www.st.com/software_license_agreement_liberty_v2
  18. *
  19. * Unless required by applicable law or agreed to in writing, software
  20. * distributed under the License is distributed on an "AS IS" BASIS,
  21. * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  22. * See the License for the specific language governing permissions and
  23. * limitations under the License.
  24. *
  25. ******************************************************************************
  26. */
  27. /** @addtogroup CMSIS
  28. * @{
  29. */
  30. /** @addtogroup stm32f4xx_system
  31. * @{
  32. */
  33. /**
  34. * @brief Define to prevent recursive inclusion
  35. */
  36. #ifndef __SYSTEM_STM32F4XX_H
  37. #define __SYSTEM_STM32F4XX_H
  38. #ifdef __cplusplus
  39. extern "C" {
  40. #endif
  41. /** @addtogroup STM32F4xx_System_Includes
  42. * @{
  43. */
  44. /**
  45. * @}
  46. */
  47. /** @addtogroup STM32F4xx_System_Exported_types
  48. * @{
  49. */
  50. extern uint32_t SystemCoreClock; /*!< System Clock Frequency (Core Clock) */
  51. /**
  52. * @}
  53. */
  54. /** @addtogroup STM32F4xx_System_Exported_Constants
  55. * @{
  56. */
  57. /**
  58. * @}
  59. */
  60. /** @addtogroup STM32F4xx_System_Exported_Macros
  61. * @{
  62. */
  63. /**
  64. * @}
  65. */
  66. /** @addtogroup STM32F4xx_System_Exported_Functions
  67. * @{
  68. */
  69. extern void SystemInit(void);
  70. extern void SystemCoreClockUpdate(void);
  71. /**
  72. * @}
  73. */
  74. #ifdef __cplusplus
  75. }
  76. #endif
  77. #endif /*__SYSTEM_STM32F4XX_H */
  78. /**
  79. * @}
  80. */
  81. /**
  82. * @}
  83. */
  84. /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/