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