1 /**
2   ******************************************************************************
3   * @file    system_stm32l0xx.h
4   * @author  MCD Application Team
5   * @brief   CMSIS Cortex-M0+ Device Peripheral Access Layer System Header File.
6   ******************************************************************************
7   * @attention
8   *
9   * Copyright (c) 2016 STMicroelectronics.
10   * All rights reserved.
11   *
12   * This software is licensed under terms that can be found in the LICENSE file
13   * in the root directory of this software component.
14   * If no LICENSE file comes with this software, it is provided AS-IS.
15   *
16   ******************************************************************************
17   */
18 
19 /** @addtogroup CMSIS
20   * @{
21   */
22 
23 /** @addtogroup stm32l0xx_system
24   * @{
25   */
26 
27 /**
28   * @brief Define to prevent recursive inclusion
29   */
30 #ifndef __SYSTEM_STM32L0XX_H
31 #define __SYSTEM_STM32L0XX_H
32 
33 #ifdef __cplusplus
34  extern "C" {
35 #endif
36 
37 /** @addtogroup STM32L0xx_System_Includes
38   * @{
39   */
40 
41 /**
42   * @}
43   */
44 
45 
46 /** @addtogroup STM32L0xx_System_Exported_types
47   * @{
48   */
49   /* This variable is updated in three ways:
50       1) by calling CMSIS function SystemCoreClockUpdate()
51       2) by calling HAL API function HAL_RCC_GetSysClockFreq()
52       3) each time HAL_RCC_ClockConfig() is called to configure the system clock frequency
53          Note: If you use this function to configure the system clock; then there
54                is no need to call the 2 first functions listed above, since SystemCoreClock
55                variable is updated automatically.
56   */
57 extern uint32_t SystemCoreClock;          /*!< System Clock Frequency (Core Clock) */
58 /*
59 */
60 extern const uint8_t AHBPrescTable[16];   /*!< AHB prescalers table values */
61 extern const uint8_t APBPrescTable[8];    /*!< APB prescalers table values */
62 extern const uint8_t PLLMulTable[9];      /*!< PLL multipiers table values */
63 
64 
65 /**
66   * @}
67   */
68 
69 /** @addtogroup STM32L0xx_System_Exported_Constants
70   * @{
71   */
72 
73 /**
74   * @}
75   */
76 
77 /** @addtogroup STM32L0xx_System_Exported_Macros
78   * @{
79   */
80 
81 /**
82   * @}
83   */
84 
85 /** @addtogroup STM32L0xx_System_Exported_Functions
86   * @{
87   */
88 
89 extern void SystemInit(void);
90 extern void SystemCoreClockUpdate(void);
91 /**
92   * @}
93   */
94 
95 #ifdef __cplusplus
96 }
97 #endif
98 
99 #endif /*__SYSTEM_STM32L0XX_H */
100 
101 /**
102   * @}
103   */
104 
105 /**
106   * @}
107   */
108