stm32l4: copy libs from STM32CubeL4 v1.17.0

Signed-off-by: Matt Baker <baker.matt.j@gmail.com>
This commit is contained in:
Matt Baker 2021-04-22 13:25:45 -07:00 committed by KevinOConnor
parent 8cdb2278d7
commit 57b0eb5d43
28 changed files with 451257 additions and 0 deletions

10913
lib/stm32l4/include/stm32l412xx.h Executable file

File diff suppressed because it is too large Load Diff

11141
lib/stm32l4/include/stm32l422xx.h Executable file

File diff suppressed because it is too large Load Diff

15068
lib/stm32l4/include/stm32l431xx.h Executable file

File diff suppressed because it is too large Load Diff

14862
lib/stm32l4/include/stm32l432xx.h Executable file

File diff suppressed because it is too large Load Diff

15966
lib/stm32l4/include/stm32l433xx.h Executable file

File diff suppressed because it is too large Load Diff

15090
lib/stm32l4/include/stm32l442xx.h Executable file

File diff suppressed because it is too large Load Diff

16194
lib/stm32l4/include/stm32l443xx.h Executable file

File diff suppressed because it is too large Load Diff

15329
lib/stm32l4/include/stm32l451xx.h Executable file

File diff suppressed because it is too large Load Diff

16073
lib/stm32l4/include/stm32l452xx.h Executable file

File diff suppressed because it is too large Load Diff

16301
lib/stm32l4/include/stm32l462xx.h Executable file

File diff suppressed because it is too large Load Diff

16845
lib/stm32l4/include/stm32l471xx.h Executable file

File diff suppressed because it is too large Load Diff

18333
lib/stm32l4/include/stm32l475xx.h Executable file

File diff suppressed because it is too large Load Diff

18487
lib/stm32l4/include/stm32l476xx.h Executable file

File diff suppressed because it is too large Load Diff

18561
lib/stm32l4/include/stm32l485xx.h Executable file

File diff suppressed because it is too large Load Diff

18715
lib/stm32l4/include/stm32l486xx.h Executable file

File diff suppressed because it is too large Load Diff

19739
lib/stm32l4/include/stm32l496xx.h Executable file

File diff suppressed because it is too large Load Diff

20082
lib/stm32l4/include/stm32l4a6xx.h Executable file

File diff suppressed because it is too large Load Diff

21152
lib/stm32l4/include/stm32l4p5xx.h Executable file

File diff suppressed because it is too large Load Diff

21669
lib/stm32l4/include/stm32l4q5xx.h Executable file

File diff suppressed because it is too large Load Diff

20115
lib/stm32l4/include/stm32l4r5xx.h Executable file

File diff suppressed because it is too large Load Diff

20620
lib/stm32l4/include/stm32l4r7xx.h Executable file

File diff suppressed because it is too large Load Diff

23752
lib/stm32l4/include/stm32l4r9xx.h Executable file

File diff suppressed because it is too large Load Diff

20465
lib/stm32l4/include/stm32l4s5xx.h Executable file

File diff suppressed because it is too large Load Diff

20970
lib/stm32l4/include/stm32l4s7xx.h Executable file

File diff suppressed because it is too large Load Diff

24102
lib/stm32l4/include/stm32l4s9xx.h Executable file

File diff suppressed because it is too large Load Diff

254
lib/stm32l4/include/stm32l4xx.h Executable file
View File

@ -0,0 +1,254 @@
/**
******************************************************************************
* @file stm32l4xx.h
* @author MCD Application Team
* @brief CMSIS STM32L4xx Device Peripheral Access Layer Header File.
*
* The file is the unique include file that the application programmer
* is using in the C source code, usually in main.c. This file contains:
* - Configuration section that allows to select:
* - The STM32L4xx device used in the target application
* - To use or not the peripherals drivers in application code(i.e.
* code will be based on direct access to peripherals registers
* rather than drivers API), this option is controlled by
* "#define USE_HAL_DRIVER"
*
******************************************************************************
* @attention
*
* <h2><center>&copy; Copyright (c) 2017 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software component is licensed by ST under Apache License, Version 2.0,
* the "License"; You may not use this file except in compliance with the
* License. You may obtain a copy of the License at:
* opensource.org/licenses/Apache-2.0
*
******************************************************************************
*/
/** @addtogroup CMSIS
* @{
*/
/** @addtogroup stm32l4xx
* @{
*/
#ifndef __STM32L4xx_H
#define __STM32L4xx_H
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/** @addtogroup Library_configuration_section
* @{
*/
/**
* @brief STM32 Family
*/
#if !defined (STM32L4)
#define STM32L4
#endif /* STM32L4 */
/* Uncomment the line below according to the target STM32L4 device used in your
application
*/
#if !defined (STM32L412xx) && !defined (STM32L422xx) && \
!defined (STM32L431xx) && !defined (STM32L432xx) && !defined (STM32L433xx) && !defined (STM32L442xx) && !defined (STM32L443xx) && \
!defined (STM32L451xx) && !defined (STM32L452xx) && !defined (STM32L462xx) && \
!defined (STM32L471xx) && !defined (STM32L475xx) && !defined (STM32L476xx) && !defined (STM32L485xx) && !defined (STM32L486xx) && \
!defined (STM32L496xx) && !defined (STM32L4A6xx) && \
!defined (STM32L4P5xx) && !defined (STM32L4Q5xx) && \
!defined (STM32L4R5xx) && !defined (STM32L4R7xx) && !defined (STM32L4R9xx) && !defined (STM32L4S5xx) && !defined (STM32L4S7xx) && !defined (STM32L4S9xx)
/* #define STM32L412xx */ /*!< STM32L412xx Devices */
/* #define STM32L422xx */ /*!< STM32L422xx Devices */
/* #define STM32L431xx */ /*!< STM32L431xx Devices */
/* #define STM32L432xx */ /*!< STM32L432xx Devices */
/* #define STM32L433xx */ /*!< STM32L433xx Devices */
/* #define STM32L442xx */ /*!< STM32L442xx Devices */
/* #define STM32L443xx */ /*!< STM32L443xx Devices */
/* #define STM32L451xx */ /*!< STM32L451xx Devices */
/* #define STM32L452xx */ /*!< STM32L452xx Devices */
/* #define STM32L462xx */ /*!< STM32L462xx Devices */
/* #define STM32L471xx */ /*!< STM32L471xx Devices */
/* #define STM32L475xx */ /*!< STM32L475xx Devices */
/* #define STM32L476xx */ /*!< STM32L476xx Devices */
/* #define STM32L485xx */ /*!< STM32L485xx Devices */
/* #define STM32L486xx */ /*!< STM32L486xx Devices */
/* #define STM32L496xx */ /*!< STM32L496xx Devices */
/* #define STM32L4A6xx */ /*!< STM32L4A6xx Devices */
/* #define STM32L4P5xx */ /*!< STM32L4Q5xx Devices */
/* #define STM32L4R5xx */ /*!< STM32L4R5xx Devices */
/* #define STM32L4R7xx */ /*!< STM32L4R7xx Devices */
/* #define STM32L4R9xx */ /*!< STM32L4R9xx Devices */
/* #define STM32L4S5xx */ /*!< STM32L4S5xx Devices */
/* #define STM32L4S7xx */ /*!< STM32L4S7xx Devices */
/* #define STM32L4S9xx */ /*!< STM32L4S9xx Devices */
#endif
/* Tip: To avoid modifying this file each time you need to switch between these
devices, you can define the device in your toolchain compiler preprocessor.
*/
#if !defined (USE_HAL_DRIVER)
/**
* @brief Comment the line below if you will not use the peripherals drivers.
In this case, these drivers will not be included and the application code will
be based on direct access to peripherals registers
*/
/*#define USE_HAL_DRIVER */
#endif /* USE_HAL_DRIVER */
/**
* @brief CMSIS Device version number
*/
#define __STM32L4_CMSIS_VERSION_MAIN (0x01) /*!< [31:24] main version */
#define __STM32L4_CMSIS_VERSION_SUB1 (0x07) /*!< [23:16] sub1 version */
#define __STM32L4_CMSIS_VERSION_SUB2 (0x01) /*!< [15:8] sub2 version */
#define __STM32L4_CMSIS_VERSION_RC (0x00) /*!< [7:0] release candidate */
#define __STM32L4_CMSIS_VERSION ((__STM32L4_CMSIS_VERSION_MAIN << 24)\
|(__STM32L4_CMSIS_VERSION_SUB1 << 16)\
|(__STM32L4_CMSIS_VERSION_SUB2 << 8 )\
|(__STM32L4_CMSIS_VERSION_RC))
/**
* @}
*/
/** @addtogroup Device_Included
* @{
*/
#if defined(STM32L412xx)
#include "stm32l412xx.h"
#elif defined(STM32L422xx)
#include "stm32l422xx.h"
#elif defined(STM32L431xx)
#include "stm32l431xx.h"
#elif defined(STM32L432xx)
#include "stm32l432xx.h"
#elif defined(STM32L433xx)
#include "stm32l433xx.h"
#elif defined(STM32L442xx)
#include "stm32l442xx.h"
#elif defined(STM32L443xx)
#include "stm32l443xx.h"
#elif defined(STM32L451xx)
#include "stm32l451xx.h"
#elif defined(STM32L452xx)
#include "stm32l452xx.h"
#elif defined(STM32L462xx)
#include "stm32l462xx.h"
#elif defined(STM32L471xx)
#include "stm32l471xx.h"
#elif defined(STM32L475xx)
#include "stm32l475xx.h"
#elif defined(STM32L476xx)
#include "stm32l476xx.h"
#elif defined(STM32L485xx)
#include "stm32l485xx.h"
#elif defined(STM32L486xx)
#include "stm32l486xx.h"
#elif defined(STM32L496xx)
#include "stm32l496xx.h"
#elif defined(STM32L4A6xx)
#include "stm32l4a6xx.h"
#elif defined(STM32L4P5xx)
#include "stm32l4p5xx.h"
#elif defined(STM32L4Q5xx)
#include "stm32l4q5xx.h"
#elif defined(STM32L4R5xx)
#include "stm32l4r5xx.h"
#elif defined(STM32L4R7xx)
#include "stm32l4r7xx.h"
#elif defined(STM32L4R9xx)
#include "stm32l4r9xx.h"
#elif defined(STM32L4S5xx)
#include "stm32l4s5xx.h"
#elif defined(STM32L4S7xx)
#include "stm32l4s7xx.h"
#elif defined(STM32L4S9xx)
#include "stm32l4s9xx.h"
#else
#error "Please select first the target STM32L4xx device used in your application (in stm32l4xx.h file)"
#endif
/**
* @}
*/
/** @addtogroup Exported_types
* @{
*/
typedef enum
{
RESET = 0,
SET = !RESET
} FlagStatus, ITStatus;
typedef enum
{
DISABLE = 0,
ENABLE = !DISABLE
} FunctionalState;
#define IS_FUNCTIONAL_STATE(STATE) (((STATE) == DISABLE) || ((STATE) == ENABLE))
typedef enum
{
SUCCESS = 0,
ERROR = !SUCCESS
} ErrorStatus;
/**
* @}
*/
/** @addtogroup Exported_macros
* @{
*/
#define SET_BIT(REG, BIT) ((REG) |= (BIT))
#define CLEAR_BIT(REG, BIT) ((REG) &= ~(BIT))
#define READ_BIT(REG, BIT) ((REG) & (BIT))
#define CLEAR_REG(REG) ((REG) = (0x0))
#define WRITE_REG(REG, VAL) ((REG) = (VAL))
#define READ_REG(REG) ((REG))
#define MODIFY_REG(REG, CLEARMASK, SETMASK) WRITE_REG((REG), (((READ_REG(REG)) & (~(CLEARMASK))) | (SETMASK)))
#define POSITION_VAL(VAL) (__CLZ(__RBIT(VAL)))
/**
* @}
*/
#if defined (USE_HAL_DRIVER)
#include "stm32l4xx_hal.h"
#endif /* USE_HAL_DRIVER */
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __STM32L4xx_H */
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

View File

@ -0,0 +1,107 @@
/**
******************************************************************************
* @file system_stm32l4xx.h
* @author MCD Application Team
* @brief CMSIS Cortex-M4 Device System Source File for STM32L4xx devices.
******************************************************************************
* @attention
*
* <h2><center>&copy; Copyright (c) 2017 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software component is licensed by ST under Apache License, Version 2.0,
* the "License"; You may not use this file except in compliance with the
* License. You may obtain a copy of the License at:
* opensource.org/licenses/Apache-2.0
*
******************************************************************************
*/
/** @addtogroup CMSIS
* @{
*/
/** @addtogroup stm32l4xx_system
* @{
*/
/**
* @brief Define to prevent recursive inclusion
*/
#ifndef __SYSTEM_STM32L4XX_H
#define __SYSTEM_STM32L4XX_H
#ifdef __cplusplus
extern "C" {
#endif
/** @addtogroup STM32L4xx_System_Includes
* @{
*/
/**
* @}
*/
/** @addtogroup STM32L4xx_System_Exported_Variables
* @{
*/
/* The SystemCoreClock variable is updated in three ways:
1) by calling CMSIS function SystemCoreClockUpdate()
2) by calling HAL API function HAL_RCC_GetSysClockFreq()
3) each time HAL_RCC_ClockConfig() is called to configure the system clock frequency
Note: If you use this function to configure the system clock; then there
is no need to call the 2 first functions listed above, since SystemCoreClock
variable is updated automatically.
*/
extern uint32_t SystemCoreClock; /*!< System Clock Frequency (Core Clock) */
extern const uint8_t AHBPrescTable[16]; /*!< AHB prescalers table values */
extern const uint8_t APBPrescTable[8]; /*!< APB prescalers table values */
extern const uint32_t MSIRangeTable[12]; /*!< MSI ranges table values */
/**
* @}
*/
/** @addtogroup STM32L4xx_System_Exported_Constants
* @{
*/
/**
* @}
*/
/** @addtogroup STM32L4xx_System_Exported_Macros
* @{
*/
/**
* @}
*/
/** @addtogroup STM32L4xx_System_Exported_Functions
* @{
*/
extern void SystemInit(void);
extern void SystemCoreClockUpdate(void);
/**
* @}
*/
#ifdef __cplusplus
}
#endif
#endif /*__SYSTEM_STM32L4XX_H */
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

352
lib/stm32l4/system_stm32l4xx.c Executable file
View File

@ -0,0 +1,352 @@
/**
******************************************************************************
* @file system_stm32l4xx.c
* @author MCD Application Team
* @brief CMSIS Cortex-M4 Device Peripheral Access Layer System Source File
*
* This file provides two functions and one global variable to be called from
* user application:
* - SystemInit(): This function is called at startup just after reset and
* before branch to main program. This call is made inside
* the "startup_stm32l4xx.s" file.
*
* - SystemCoreClock variable: Contains the core clock (HCLK), it can be used
* by the user application to setup the SysTick
* timer or configure other parameters.
*
* - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must
* be called whenever the core clock is changed
* during program execution.
*
* After each device reset the MSI (4 MHz) is used as system clock source.
* Then SystemInit() function is called, in "startup_stm32l4xx.s" file, to
* configure the system clock before to branch to main program.
*
* This file configures the system clock as follows:
*=============================================================================
*-----------------------------------------------------------------------------
* System Clock source | MSI
*-----------------------------------------------------------------------------
* SYSCLK(Hz) | 4000000
*-----------------------------------------------------------------------------
* HCLK(Hz) | 4000000
*-----------------------------------------------------------------------------
* AHB Prescaler | 1
*-----------------------------------------------------------------------------
* APB1 Prescaler | 1
*-----------------------------------------------------------------------------
* APB2 Prescaler | 1
*-----------------------------------------------------------------------------
* PLL_M | 1
*-----------------------------------------------------------------------------
* PLL_N | 8
*-----------------------------------------------------------------------------
* PLL_P | 7
*-----------------------------------------------------------------------------
* PLL_Q | 2
*-----------------------------------------------------------------------------
* PLL_R | 2
*-----------------------------------------------------------------------------
* PLLSAI1_P | NA
*-----------------------------------------------------------------------------
* PLLSAI1_Q | NA
*-----------------------------------------------------------------------------
* PLLSAI1_R | NA
*-----------------------------------------------------------------------------
* PLLSAI2_P | NA
*-----------------------------------------------------------------------------
* PLLSAI2_Q | NA
*-----------------------------------------------------------------------------
* PLLSAI2_R | NA
*-----------------------------------------------------------------------------
* Require 48MHz for USB OTG FS, | Disabled
* SDIO and RNG clock |
*-----------------------------------------------------------------------------
*=============================================================================
******************************************************************************
* @attention
*
* <h2><center>&copy; Copyright (c) 2017 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software component is licensed by ST under Apache License, Version 2.0,
* the "License"; You may not use this file except in compliance with the
* License. You may obtain a copy of the License at:
* opensource.org/licenses/Apache-2.0
*
******************************************************************************
*/
/** @addtogroup CMSIS
* @{
*/
/** @addtogroup stm32l4xx_system
* @{
*/
/** @addtogroup STM32L4xx_System_Private_Includes
* @{
*/
#include "stm32l4xx.h"
/**
* @}
*/
/** @addtogroup STM32L4xx_System_Private_TypesDefinitions
* @{
*/
/**
* @}
*/
/** @addtogroup STM32L4xx_System_Private_Defines
* @{
*/
#if !defined (HSE_VALUE)
#define HSE_VALUE 8000000U /*!< Value of the External oscillator in Hz */
#endif /* HSE_VALUE */
#if !defined (MSI_VALUE)
#define MSI_VALUE 4000000U /*!< Value of the Internal oscillator in Hz*/
#endif /* MSI_VALUE */
#if !defined (HSI_VALUE)
#define HSI_VALUE 16000000U /*!< Value of the Internal oscillator in Hz*/
#endif /* HSI_VALUE */
/* Note: Following vector table addresses must be defined in line with linker
configuration. */
/*!< Uncomment the following line if you need to relocate the vector table
anywhere in Flash or Sram, else the vector table is kept at the automatic
remap of boot address selected */
/* #define USER_VECT_TAB_ADDRESS */
#if defined(USER_VECT_TAB_ADDRESS)
/*!< Uncomment the following line if you need to relocate your vector Table
in Sram else user remap will be done in Flash. */
/* #define VECT_TAB_SRAM */
#if defined(VECT_TAB_SRAM)
#define VECT_TAB_BASE_ADDRESS SRAM1_BASE /*!< Vector Table base address field.
This value must be a multiple of 0x200. */
#define VECT_TAB_OFFSET 0x00000000U /*!< Vector Table base offset field.
This value must be a multiple of 0x200. */
#else
#define VECT_TAB_BASE_ADDRESS FLASH_BASE /*!< Vector Table base address field.
This value must be a multiple of 0x200. */
#define VECT_TAB_OFFSET 0x00000000U /*!< Vector Table base offset field.
This value must be a multiple of 0x200. */
#endif /* VECT_TAB_SRAM */
#endif /* USER_VECT_TAB_ADDRESS */
/******************************************************************************/
/**
* @}
*/
/** @addtogroup STM32L4xx_System_Private_Macros
* @{
*/
/**
* @}
*/
/** @addtogroup STM32L4xx_System_Private_Variables
* @{
*/
/* The SystemCoreClock variable is updated in three ways:
1) by calling CMSIS function SystemCoreClockUpdate()
2) by calling HAL API function HAL_RCC_GetHCLKFreq()
3) each time HAL_RCC_ClockConfig() is called to configure the system clock frequency
Note: If you use this function to configure the system clock; then there
is no need to call the 2 first functions listed above, since SystemCoreClock
variable is updated automatically.
*/
uint32_t SystemCoreClock = 4000000U;
const uint8_t AHBPrescTable[16] = {0U, 0U, 0U, 0U, 0U, 0U, 0U, 0U, 1U, 2U, 3U, 4U, 6U, 7U, 8U, 9U};
const uint8_t APBPrescTable[8] = {0U, 0U, 0U, 0U, 1U, 2U, 3U, 4U};
const uint32_t MSIRangeTable[12] = {100000U, 200000U, 400000U, 800000U, 1000000U, 2000000U, \
4000000U, 8000000U, 16000000U, 24000000U, 32000000U, 48000000U};
/**
* @}
*/
/** @addtogroup STM32L4xx_System_Private_FunctionPrototypes
* @{
*/
/**
* @}
*/
/** @addtogroup STM32L4xx_System_Private_Functions
* @{
*/
/**
* @brief Setup the microcontroller system.
* @retval None
*/
void SystemInit(void)
{
#if defined(USER_VECT_TAB_ADDRESS)
/* Configure the Vector Table location -------------------------------------*/
SCB->VTOR = VECT_TAB_BASE_ADDRESS | VECT_TAB_OFFSET;
#endif
/* FPU settings ------------------------------------------------------------*/
#if (__FPU_PRESENT == 1) && (__FPU_USED == 1)
SCB->CPACR |= ((3UL << 20U)|(3UL << 22U)); /* set CP10 and CP11 Full Access */
#endif
/* Reset the RCC clock configuration to the default reset state ------------*/
/* Set MSION bit */
RCC->CR |= RCC_CR_MSION;
/* Reset CFGR register */
RCC->CFGR = 0x00000000U;
/* Reset HSEON, CSSON , HSION, and PLLON bits */
RCC->CR &= 0xEAF6FFFFU;
/* Reset PLLCFGR register */
RCC->PLLCFGR = 0x00001000U;
/* Reset HSEBYP bit */
RCC->CR &= 0xFFFBFFFFU;
/* Disable all interrupts */
RCC->CIER = 0x00000000U;
}
/**
* @brief Update SystemCoreClock variable according to Clock Register Values.
* The SystemCoreClock variable contains the core clock (HCLK), it can
* be used by the user application to setup the SysTick timer or configure
* other parameters.
*
* @note Each time the core clock (HCLK) changes, this function must be called
* to update SystemCoreClock variable value. Otherwise, any configuration
* based on this variable will be incorrect.
*
* @note - The system frequency computed by this function is not the real
* frequency in the chip. It is calculated based on the predefined
* constant and the selected clock source:
*
* - If SYSCLK source is MSI, SystemCoreClock will contain the MSI_VALUE(*)
*
* - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(**)
*
* - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(***)
*
* - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(***)
* or HSI_VALUE(*) or MSI_VALUE(*) multiplied/divided by the PLL factors.
*
* (*) MSI_VALUE is a constant defined in stm32l4xx_hal.h file (default value
* 4 MHz) but the real value may vary depending on the variations
* in voltage and temperature.
*
* (**) HSI_VALUE is a constant defined in stm32l4xx_hal.h file (default value
* 16 MHz) but the real value may vary depending on the variations
* in voltage and temperature.
*
* (***) HSE_VALUE is a constant defined in stm32l4xx_hal.h file (default value
* 8 MHz), user has to ensure that HSE_VALUE is same as the real
* frequency of the crystal used. Otherwise, this function may
* have wrong result.
*
* - The result of this function could be not correct when using fractional
* value for HSE crystal.
*
* @retval None
*/
void SystemCoreClockUpdate(void)
{
uint32_t tmp, msirange, pllvco, pllsource, pllm, pllr;
/* Get MSI Range frequency--------------------------------------------------*/
if ((RCC->CR & RCC_CR_MSIRGSEL) == 0U)
{ /* MSISRANGE from RCC_CSR applies */
msirange = (RCC->CSR & RCC_CSR_MSISRANGE) >> 8U;
}
else
{ /* MSIRANGE from RCC_CR applies */
msirange = (RCC->CR & RCC_CR_MSIRANGE) >> 4U;
}
/*MSI frequency range in HZ*/
msirange = MSIRangeTable[msirange];
/* Get SYSCLK source -------------------------------------------------------*/
switch (RCC->CFGR & RCC_CFGR_SWS)
{
case 0x00: /* MSI used as system clock source */
SystemCoreClock = msirange;
break;
case 0x04: /* HSI used as system clock source */
SystemCoreClock = HSI_VALUE;
break;
case 0x08: /* HSE used as system clock source */
SystemCoreClock = HSE_VALUE;
break;
case 0x0C: /* PLL used as system clock source */
/* PLL_VCO = (HSE_VALUE or HSI_VALUE or MSI_VALUE/ PLLM) * PLLN
SYSCLK = PLL_VCO / PLLR
*/
pllsource = (RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC);
pllm = ((RCC->PLLCFGR & RCC_PLLCFGR_PLLM) >> 4U) + 1U ;
switch (pllsource)
{
case 0x02: /* HSI used as PLL clock source */
pllvco = (HSI_VALUE / pllm);
break;
case 0x03: /* HSE used as PLL clock source */
pllvco = (HSE_VALUE / pllm);
break;
default: /* MSI used as PLL clock source */
pllvco = (msirange / pllm);
break;
}
pllvco = pllvco * ((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> 8U);
pllr = (((RCC->PLLCFGR & RCC_PLLCFGR_PLLR) >> 25U) + 1U) * 2U;
SystemCoreClock = pllvco/pllr;
break;
default:
SystemCoreClock = msirange;
break;
}
/* Compute HCLK clock frequency --------------------------------------------*/
/* Get HCLK prescaler */
tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> 4U)];
/* HCLK clock frequency */
SystemCoreClock >>= tmp;
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/