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targets/TARGET_STM32L475xG_SRAM2/device/system_stm32l4xx.h@0:8f0bb79ddd48, 2021-05-04 (annotated)

Committer:
leothedragon
Date:
Tue May 04 08:55:12 2021 +0000
Revision:
0:8f0bb79ddd48
nmn

Who changed what in which revision?

UserRevisionLine numberNew contents of line
leothedragon 0:8f0bb79ddd48 1 /**
leothedragon 0:8f0bb79ddd48 2 ******************************************************************************
leothedragon 0:8f0bb79ddd48 3 * @file system_stm32l4xx.h
leothedragon 0:8f0bb79ddd48 4 * @author MCD Application Team
leothedragon 0:8f0bb79ddd48 5 * @brief CMSIS Cortex-M4 Device System Source File for STM32L4xx devices.
leothedragon 0:8f0bb79ddd48 6 ******************************************************************************
leothedragon 0:8f0bb79ddd48 7 * @attention
leothedragon 0:8f0bb79ddd48 8 *
leothedragon 0:8f0bb79ddd48 9 * <h2><center>&copy; COPYRIGHT(c) 2017 STMicroelectronics</center></h2>
leothedragon 0:8f0bb79ddd48 10 *
leothedragon 0:8f0bb79ddd48 11 * Redistribution and use in source and binary forms, with or without modification,
leothedragon 0:8f0bb79ddd48 12 * are permitted provided that the following conditions are met:
leothedragon 0:8f0bb79ddd48 13 * 1. Redistributions of source code must retain the above copyright notice,
leothedragon 0:8f0bb79ddd48 14 * this list of conditions and the following disclaimer.
leothedragon 0:8f0bb79ddd48 15 * 2. Redistributions in binary form must reproduce the above copyright notice,
leothedragon 0:8f0bb79ddd48 16 * this list of conditions and the following disclaimer in the documentation
leothedragon 0:8f0bb79ddd48 17 * and/or other materials provided with the distribution.
leothedragon 0:8f0bb79ddd48 18 * 3. Neither the name of STMicroelectronics nor the names of its contributors
leothedragon 0:8f0bb79ddd48 19 * may be used to endorse or promote products derived from this software
leothedragon 0:8f0bb79ddd48 20 * without specific prior written permission.
leothedragon 0:8f0bb79ddd48 21 *
leothedragon 0:8f0bb79ddd48 22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
leothedragon 0:8f0bb79ddd48 23 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
leothedragon 0:8f0bb79ddd48 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
leothedragon 0:8f0bb79ddd48 25 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
leothedragon 0:8f0bb79ddd48 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
leothedragon 0:8f0bb79ddd48 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
leothedragon 0:8f0bb79ddd48 28 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
leothedragon 0:8f0bb79ddd48 29 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
leothedragon 0:8f0bb79ddd48 30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
leothedragon 0:8f0bb79ddd48 31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
leothedragon 0:8f0bb79ddd48 32 *
leothedragon 0:8f0bb79ddd48 33 ******************************************************************************
leothedragon 0:8f0bb79ddd48 34 */
leothedragon 0:8f0bb79ddd48 35
leothedragon 0:8f0bb79ddd48 36 /** @addtogroup CMSIS
leothedragon 0:8f0bb79ddd48 37 * @{
leothedragon 0:8f0bb79ddd48 38 */
leothedragon 0:8f0bb79ddd48 39
leothedragon 0:8f0bb79ddd48 40 /** @addtogroup stm32l4xx_system
leothedragon 0:8f0bb79ddd48 41 * @{
leothedragon 0:8f0bb79ddd48 42 */
leothedragon 0:8f0bb79ddd48 43
leothedragon 0:8f0bb79ddd48 44 /**
leothedragon 0:8f0bb79ddd48 45 * @brief Define to prevent recursive inclusion
leothedragon 0:8f0bb79ddd48 46 */
leothedragon 0:8f0bb79ddd48 47 #ifndef __SYSTEM_STM32L4XX_H
leothedragon 0:8f0bb79ddd48 48 #define __SYSTEM_STM32L4XX_H
leothedragon 0:8f0bb79ddd48 49
leothedragon 0:8f0bb79ddd48 50 #ifdef __cplusplus
leothedragon 0:8f0bb79ddd48 51 extern "C" {
leothedragon 0:8f0bb79ddd48 52 #endif
leothedragon 0:8f0bb79ddd48 53
leothedragon 0:8f0bb79ddd48 54 /** @addtogroup STM32L4xx_System_Includes
leothedragon 0:8f0bb79ddd48 55 * @{
leothedragon 0:8f0bb79ddd48 56 */
leothedragon 0:8f0bb79ddd48 57
leothedragon 0:8f0bb79ddd48 58 /**
leothedragon 0:8f0bb79ddd48 59 * @}
leothedragon 0:8f0bb79ddd48 60 */
leothedragon 0:8f0bb79ddd48 61
leothedragon 0:8f0bb79ddd48 62
leothedragon 0:8f0bb79ddd48 63 /** @addtogroup STM32L4xx_System_Exported_Variables
leothedragon 0:8f0bb79ddd48 64 * @{
leothedragon 0:8f0bb79ddd48 65 */
leothedragon 0:8f0bb79ddd48 66 /* The SystemCoreClock variable is updated in three ways:
leothedragon 0:8f0bb79ddd48 67 1) by calling CMSIS function SystemCoreClockUpdate()
leothedragon 0:8f0bb79ddd48 68 2) by calling HAL API function HAL_RCC_GetSysClockFreq()
leothedragon 0:8f0bb79ddd48 69 3) each time HAL_RCC_ClockConfig() is called to configure the system clock frequency
leothedragon 0:8f0bb79ddd48 70 Note: If you use this function to configure the system clock; then there
leothedragon 0:8f0bb79ddd48 71 is no need to call the 2 first functions listed above, since SystemCoreClock
leothedragon 0:8f0bb79ddd48 72 variable is updated automatically.
leothedragon 0:8f0bb79ddd48 73 */
leothedragon 0:8f0bb79ddd48 74 extern uint32_t SystemCoreClock; /*!< System Clock Frequency (Core Clock) */
leothedragon 0:8f0bb79ddd48 75
leothedragon 0:8f0bb79ddd48 76 extern const uint8_t AHBPrescTable[16]; /*!< AHB prescalers table values */
leothedragon 0:8f0bb79ddd48 77 extern const uint8_t APBPrescTable[8]; /*!< APB prescalers table values */
leothedragon 0:8f0bb79ddd48 78 extern const uint32_t MSIRangeTable[12]; /*!< MSI ranges table values */
leothedragon 0:8f0bb79ddd48 79
leothedragon 0:8f0bb79ddd48 80 /**
leothedragon 0:8f0bb79ddd48 81 * @}
leothedragon 0:8f0bb79ddd48 82 */
leothedragon 0:8f0bb79ddd48 83
leothedragon 0:8f0bb79ddd48 84 /** @addtogroup STM32L4xx_System_Exported_Constants
leothedragon 0:8f0bb79ddd48 85 * @{
leothedragon 0:8f0bb79ddd48 86 */
leothedragon 0:8f0bb79ddd48 87
leothedragon 0:8f0bb79ddd48 88 /**
leothedragon 0:8f0bb79ddd48 89 * @}
leothedragon 0:8f0bb79ddd48 90 */
leothedragon 0:8f0bb79ddd48 91
leothedragon 0:8f0bb79ddd48 92 /** @addtogroup STM32L4xx_System_Exported_Macros
leothedragon 0:8f0bb79ddd48 93 * @{
leothedragon 0:8f0bb79ddd48 94 */
leothedragon 0:8f0bb79ddd48 95
leothedragon 0:8f0bb79ddd48 96 /**
leothedragon 0:8f0bb79ddd48 97 * @}
leothedragon 0:8f0bb79ddd48 98 */
leothedragon 0:8f0bb79ddd48 99
leothedragon 0:8f0bb79ddd48 100 /** @addtogroup STM32L4xx_System_Exported_Functions
leothedragon 0:8f0bb79ddd48 101 * @{
leothedragon 0:8f0bb79ddd48 102 */
leothedragon 0:8f0bb79ddd48 103
leothedragon 0:8f0bb79ddd48 104 extern void SystemInit(void);
leothedragon 0:8f0bb79ddd48 105 extern void SystemCoreClockUpdate(void);
leothedragon 0:8f0bb79ddd48 106 extern void SetSysClock(void);
leothedragon 0:8f0bb79ddd48 107
leothedragon 0:8f0bb79ddd48 108 /**
leothedragon 0:8f0bb79ddd48 109 * @}
leothedragon 0:8f0bb79ddd48 110 */
leothedragon 0:8f0bb79ddd48 111
leothedragon 0:8f0bb79ddd48 112 #ifdef __cplusplus
leothedragon 0:8f0bb79ddd48 113 }
leothedragon 0:8f0bb79ddd48 114 #endif
leothedragon 0:8f0bb79ddd48 115
leothedragon 0:8f0bb79ddd48 116 #endif /*__SYSTEM_STM32L4XX_H */
leothedragon 0:8f0bb79ddd48 117
leothedragon 0:8f0bb79ddd48 118 /**
leothedragon 0:8f0bb79ddd48 119 * @}
leothedragon 0:8f0bb79ddd48 120 */
leothedragon 0:8f0bb79ddd48 121
leothedragon 0:8f0bb79ddd48 122 /**
leothedragon 0:8f0bb79ddd48 123 * @}
leothedragon 0:8f0bb79ddd48 124 */
leothedragon 0:8f0bb79ddd48 125 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/