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| 30 | mjames | 1 | /** |
| 2 | ****************************************************************************** |
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| 3 | * @file system_stm32l1xx.h |
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| 4 | * @author MCD Application Team |
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| 5 | * @version V2.2.0 |
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| 6 | * @date 01-July-2016 |
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| 7 | * @brief CMSIS Cortex-M3 Device System Source File for STM32L1xx devices. |
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| 8 | ****************************************************************************** |
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| 9 | * @attention |
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| 10 | * |
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| 11 | * <h2><center>© COPYRIGHT(c) 2016 STMicroelectronics</center></h2> |
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| 12 | * |
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| 13 | * Redistribution and use in source and binary forms, with or without modification, |
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| 14 | * are permitted provided that the following conditions are met: |
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| 15 | * 1. Redistributions of source code must retain the above copyright notice, |
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| 16 | * this list of conditions and the following disclaimer. |
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| 17 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
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| 18 | * this list of conditions and the following disclaimer in the documentation |
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| 19 | * and/or other materials provided with the distribution. |
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| 20 | * 3. Neither the name of STMicroelectronics nor the names of its contributors |
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| 21 | * may be used to endorse or promote products derived from this software |
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| 22 | * without specific prior written permission. |
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| 23 | * |
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| 24 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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| 25 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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| 26 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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| 27 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
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| 28 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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| 29 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
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| 30 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
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| 31 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
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| 32 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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| 33 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 34 | * |
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| 35 | ****************************************************************************** |
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| 36 | */ |
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| 37 | |||
| 38 | /** @addtogroup CMSIS |
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| 39 | * @{ |
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| 40 | */ |
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| 41 | |||
| 42 | /** @addtogroup stm32l1xx_system |
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| 43 | * @{ |
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| 44 | */ |
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| 45 | |||
| 46 | /** |
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| 47 | * @brief Define to prevent recursive inclusion |
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| 48 | */ |
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| 49 | #ifndef __SYSTEM_STM32L1XX_H |
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| 50 | #define __SYSTEM_STM32L1XX_H |
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| 51 | |||
| 52 | #ifdef __cplusplus |
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| 53 | extern "C" { |
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| 54 | #endif |
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| 55 | |||
| 56 | /** @addtogroup STM32L1xx_System_Includes |
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| 57 | * @{ |
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| 58 | */ |
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| 59 | |||
| 60 | /** |
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| 61 | * @} |
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| 62 | */ |
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| 63 | |||
| 64 | |||
| 65 | /** @addtogroup STM32L1xx_System_Exported_types |
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| 66 | * @{ |
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| 67 | */ |
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| 68 | /* This variable is updated in three ways: |
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| 69 | 1) by calling CMSIS function SystemCoreClockUpdate() |
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| 70 | 2) by calling HAL API function HAL_RCC_GetSysClockFreq() |
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| 71 | 3) each time HAL_RCC_ClockConfig() is called to configure the system clock frequency |
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| 72 | Note: If you use this function to configure the system clock; then there |
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| 73 | is no need to call the 2 first functions listed above, since SystemCoreClock |
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| 74 | variable is updated automatically. |
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| 75 | */ |
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| 76 | extern uint32_t SystemCoreClock; /*!< System Clock Frequency (Core Clock) */ |
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| 77 | /* |
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| 78 | */ |
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| 79 | extern const uint8_t AHBPrescTable[16]; /*!< AHB prescalers table values */ |
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| 80 | extern const uint8_t APBPrescTable[8]; /*!< APB prescalers table values */ |
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| 81 | extern const uint8_t PLLMulTable[9]; /*!< PLL multipiers table values */ |
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| 82 | |||
| 83 | /** |
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| 84 | * @} |
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| 85 | */ |
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| 86 | |||
| 87 | /** @addtogroup STM32L1xx_System_Exported_Constants |
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| 88 | * @{ |
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| 89 | */ |
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| 90 | |||
| 91 | /** |
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| 92 | * @} |
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| 93 | */ |
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| 94 | |||
| 95 | /** @addtogroup STM32L1xx_System_Exported_Macros |
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| 96 | * @{ |
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| 97 | */ |
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| 98 | |||
| 99 | /** |
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| 100 | * @} |
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| 101 | */ |
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| 102 | |||
| 103 | /** @addtogroup STM32L1xx_System_Exported_Functions |
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| 104 | * @{ |
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| 105 | */ |
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| 106 | |||
| 107 | extern void SystemInit(void); |
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| 108 | extern void SystemCoreClockUpdate(void); |
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| 109 | /** |
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| 110 | * @} |
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| 111 | */ |
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| 112 | |||
| 113 | #ifdef __cplusplus |
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| 114 | } |
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| 115 | #endif |
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| 116 | |||
| 117 | #endif /*__SYSTEM_STM32L1XX_H */ |
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| 118 | |||
| 119 | /** |
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| 120 | * @} |
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| 121 | */ |
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| 122 | |||
| 123 | /** |
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| 124 | * @} |
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| 125 | */ |
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| 126 | /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |