unicod
/
DigitalAudioH533
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
You cannot select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
master
Branches Tags
${ item.name }
Create tag ${ searchTerm }
Create branch ${ searchTerm }
from '25af824727'
${ noResults }
DigitalAudioH533/Drivers/STM32H5xx_HAL_Driver/Src/stm32h5xx_ll_utils.c

978 lines
41 KiB
C
Raw Blame History

/**
******************************************************************************
* @file stm32h5xx_ll_utils.c
* @author MCD Application Team
* @brief UTILS LL module driver.
******************************************************************************
* @attention
*
* Copyright (c) 2023 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32h5xx_ll_utils.h"
#include "stm32h5xx_ll_rcc.h"
#include "stm32h5xx_ll_system.h"
#include "stm32h5xx_ll_pwr.h"
#ifdef USE_FULL_ASSERT
#include "stm32_assert.h"
#else
#define assert_param(expr) ((void)0U)
#endif /* USE_FULL_ASSERT */
/** @addtogroup STM32H5xx_LL_Driver
* @{
*/
/** @addtogroup UTILS_LL
* @{
*/
/* Private types -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private constants ---------------------------------------------------------*/
/** @addtogroup UTILS_LL_Private_Constants
* @{
*/
#define UTILS_MAX_FREQUENCY_SCALE0 250000000U /*!< Maximum frequency for system clock at power scale0, in Hz */
#define UTILS_MAX_FREQUENCY_SCALE1 200000000U /*!< Maximum frequency for system clock at power scale1, in Hz */
#define UTILS_MAX_FREQUENCY_SCALE2 150000000U /*!< Maximum frequency for system clock at power scale2, in Hz */
#define UTILS_MAX_FREQUENCY_SCALE3 100000000U /*!< Maximum frequency for system clock at power scale3, in Hz */
/* Defines used for PLL range */
#define UTILS_PLLVCO_INPUT_MIN1 1000000U /*!< Frequency min for the low range PLLVCO input, in Hz */
#define UTILS_PLLVCO_INPUT_MAX1 2000000U /*!< Frequency max for the wide range PLLVCO input, in Hz */
#define UTILS_PLLVCO_INPUT_MIN2 2000000U /*!< Frequency min for the low range PLLVCO input, in Hz */
#define UTILS_PLLVCO_INPUT_MAX2 4000000U /*!< Frequency max for the wide range PLLVCO input, in Hz */
#define UTILS_PLLVCO_INPUT_MIN3 4000000U /*!< Frequency min for the low range PLLVCO input, in Hz */
#define UTILS_PLLVCO_INPUT_MAX3 8000000U /*!< Frequency max for the wide range PLLVCO input, in Hz */
#define UTILS_PLLVCO_INPUT_MIN4 8000000U /*!< Frequency min for the low range PLLVCO input, in Hz */
#define UTILS_PLLVCO_INPUT_MAX4 16000000U /*!< Frequency max for the wide range PLLVCO input, in Hz */
#define UTILS_PLLVCO_MEDIUM_OUTPUT_MIN 150000000U /*!< Frequency min for the medium range PLLVCO output, in Hz */
#define UTILS_PLLVCO_WIDE_OUTPUT_MIN 192000000U /*!< Frequency min for the wide range PLLVCO output, in Hz */
#define UTILS_PLLVCO_MEDIUM_OUTPUT_MAX 420000000U /*!< Frequency max for the medium range PLLVCO output, in Hz */
#define UTILS_PLLVCO_WIDE_OUTPUT_MAX 836000000U /*!< Frequency max for the wide range PLLVCO output, in Hz */
/* Defines used for HSE range */
#define UTILS_HSE_FREQUENCY_MIN 4000000U /*!< Frequency min for HSE frequency, in Hz */
#define UTILS_HSE_FREQUENCY_MAX 50000000U /*!< Frequency max for HSE frequency, in Hz */
/* Defines used for FLASH latency according to HCLK Frequency */
#define UTILS_SCALE0_LATENCY0_FREQ 42000000U /*!< HCLK frequency to set FLASH latency 0 in power scale 0 */
#define UTILS_SCALE0_LATENCY1_FREQ 84000000U /*!< HCLK frequency to set FLASH latency 1 in power scale 0 */
#define UTILS_SCALE0_LATENCY2_FREQ 126000000U /*!< HCLK frequency to set FLASH latency 2 in power scale 0 */
#define UTILS_SCALE0_LATENCY3_FREQ 168000000U /*!< HCLK frequency to set FLASH latency 3 in power scale 0 */
#define UTILS_SCALE0_LATENCY4_FREQ 210000000U /*!< HCLK frequency to set FLASH latency 4 in power scale 0 */
#define UTILS_SCALE0_LATENCY5_FREQ 250000000U /*!< HCLK frequency to set FLASH latency 5 in power scale 0 */
#define UTILS_SCALE1_LATENCY0_FREQ 34000000U /*!< HCLK frequency to set FLASH latency 0 in power scale 1 */
#define UTILS_SCALE1_LATENCY1_FREQ 68000000U /*!< HCLK frequency to set FLASH latency 1 in power scale 1 */
#define UTILS_SCALE1_LATENCY2_FREQ 102000000U /*!< HCLK frequency to set FLASH latency 2 in power scale 1 */
#define UTILS_SCALE1_LATENCY3_FREQ 136000000U /*!< HCLK frequency to set FLASH latency 3 in power scale 1 */
#define UTILS_SCALE1_LATENCY4_FREQ 170000000U /*!< HCLK frequency to set FLASH latency 4 in power scale 1 */
#define UTILS_SCALE1_LATENCY5_FREQ 200000000U /*!< HCLK frequency to set FLASH latency 5 in power scale 1 */
#define UTILS_SCALE2_LATENCY0_FREQ 30000000U /*!< HCLK frequency to set FLASH latency 0 in power scale 2 */
#define UTILS_SCALE2_LATENCY1_FREQ 60000000U /*!< HCLK frequency to set FLASH latency 1 in power scale 2 */
#define UTILS_SCALE2_LATENCY2_FREQ 90000000U /*!< HCLK frequency to set FLASH latency 2 in power scale 2 */
#define UTILS_SCALE2_LATENCY3_FREQ 120000000U /*!< HCLK frequency to set FLASH latency 3 in power scale 2 */
#define UTILS_SCALE2_LATENCY4_FREQ 150000000U /*!< HCLK frequency to set FLASH latency 4 in power scale 2 */
#define UTILS_SCALE3_LATENCY0_FREQ 20000000U /*!< HCLK frequency to set FLASH latency 0 in power scale 3 */
#define UTILS_SCALE3_LATENCY1_FREQ 40000000U /*!< HCLK frequency to set FLASH latency 1 in power scale 3 */
#define UTILS_SCALE3_LATENCY2_FREQ 60000000U /*!< HCLK frequency to set FLASH latency 2 in power scale 3 */
#define UTILS_SCALE3_LATENCY3_FREQ 80000000U /*!< HCLK frequency to set FLASH latency 3 in power scale 3 */
#define UTILS_SCALE3_LATENCY4_FREQ 100000000U /*!< HCLK frequency to set FLASH latency 4 in power scale 3 */
/**
* @}
*/
/* Private macros ------------------------------------------------------------*/
/** @addtogroup UTILS_LL_Private_Macros
* @{
*/
#define IS_LL_UTILS_SYSCLK_DIV(__VALUE__) (((__VALUE__) == LL_RCC_SYSCLK_DIV_1) \
|| ((__VALUE__) == LL_RCC_SYSCLK_DIV_2) \
|| ((__VALUE__) == LL_RCC_SYSCLK_DIV_4) \
|| ((__VALUE__) == LL_RCC_SYSCLK_DIV_8) \
|| ((__VALUE__) == LL_RCC_SYSCLK_DIV_16) \
|| ((__VALUE__) == LL_RCC_SYSCLK_DIV_64) \
|| ((__VALUE__) == LL_RCC_SYSCLK_DIV_128) \
|| ((__VALUE__) == LL_RCC_SYSCLK_DIV_256) \
|| ((__VALUE__) == LL_RCC_SYSCLK_DIV_512))
#define IS_LL_UTILS_APB1_DIV(__VALUE__) (((__VALUE__) == LL_RCC_APB1_DIV_1) \
|| ((__VALUE__) == LL_RCC_APB1_DIV_2) \
|| ((__VALUE__) == LL_RCC_APB1_DIV_4) \
|| ((__VALUE__) == LL_RCC_APB1_DIV_8) \
|| ((__VALUE__) == LL_RCC_APB1_DIV_16))
#define IS_LL_UTILS_APB2_DIV(__VALUE__) (((__VALUE__) == LL_RCC_APB2_DIV_1) \
|| ((__VALUE__) == LL_RCC_APB2_DIV_2) \
|| ((__VALUE__) == LL_RCC_APB2_DIV_4) \
|| ((__VALUE__) == LL_RCC_APB2_DIV_8) \
|| ((__VALUE__) == LL_RCC_APB2_DIV_16))
#define IS_LL_UTILS_APB3_DIV(__VALUE__) (((__VALUE__) == LL_RCC_APB3_DIV_1) \
|| ((__VALUE__) == LL_RCC_APB3_DIV_2) \
|| ((__VALUE__) == LL_RCC_APB3_DIV_4) \
|| ((__VALUE__) == LL_RCC_APB3_DIV_8) \
|| ((__VALUE__) == LL_RCC_APB3_DIV_16))
#define IS_LL_UTILS_PLLM_VALUE(__VALUE__) ((1U <= (__VALUE__)) && ((__VALUE__) <= 63U))
#define IS_LL_UTILS_PLLN_VALUE(__VALUE__) ((4U <= (__VALUE__)) && ((__VALUE__) <= 512U))
#define IS_LL_UTILS_PLLP_VALUE(__VALUE__) ((2U <= (__VALUE__)) && ((__VALUE__) <= 128U))
#define IS_LL_UTILS_FRACN_VALUE(__VALUE__) ((__VALUE__) <= 0x1FFFU)
#define IS_LL_UTILS_PLLVCO_INPUT(__VALUE__, __RANGE__) ( \
(((__RANGE__) == LL_RCC_PLLINPUTRANGE_1_2) && \
(UTILS_PLLVCO_INPUT_MIN1 <= (__VALUE__)) && \
((__VALUE__) <= UTILS_PLLVCO_INPUT_MAX1)) || \
(((__RANGE__) == LL_RCC_PLLINPUTRANGE_2_4) && \
(UTILS_PLLVCO_INPUT_MIN2 <= (__VALUE__)) && \
((__VALUE__) <= UTILS_PLLVCO_INPUT_MAX2)) || \
(((__RANGE__) == LL_RCC_PLLINPUTRANGE_4_8) && \
(UTILS_PLLVCO_INPUT_MIN3 <= (__VALUE__)) && \
((__VALUE__) <= UTILS_PLLVCO_INPUT_MAX3)) || \
(((__RANGE__) == LL_RCC_PLLINPUTRANGE_8_16) && \
(UTILS_PLLVCO_INPUT_MIN4 <= (__VALUE__)) && \
((__VALUE__) <= UTILS_PLLVCO_INPUT_MAX4)))
#define IS_LL_UTILS_PLLVCO_OUTPUT(__VALUE__, __RANGE__) ( \
(((__RANGE__) == LL_RCC_PLLVCORANGE_MEDIUM) && \
(UTILS_PLLVCO_MEDIUM_OUTPUT_MIN <= (__VALUE__)) && \
((__VALUE__) <= UTILS_PLLVCO_MEDIUM_OUTPUT_MAX)) || \
(((__RANGE__) == LL_RCC_PLLVCORANGE_WIDE) && \
(UTILS_PLLVCO_WIDE_OUTPUT_MIN <= (__VALUE__)) && \
((__VALUE__) <= UTILS_PLLVCO_WIDE_OUTPUT_MAX)))
#define IS_LL_UTILS_CHECK_VCO_RANGES(__RANGEIN__, __RANGEOUT__) ( \
(((__RANGEIN__) == LL_RCC_PLLINPUTRANGE_1_2) && \
((__RANGEOUT__) == LL_RCC_PLLVCORANGE_MEDIUM)) || \
(((__RANGEIN__) != LL_RCC_PLLINPUTRANGE_1_2) && \
((__RANGEOUT__) == LL_RCC_PLLVCORANGE_WIDE)))
#define IS_LL_UTILS_PLL_FREQUENCY(__VALUE__) ((LL_PWR_GetRegulVoltageScaling() == LL_PWR_REGU_VOLTAGE_SCALE0) ? \
((__VALUE__) <= UTILS_MAX_FREQUENCY_SCALE0) : \
(LL_PWR_GetRegulVoltageScaling() == LL_PWR_REGU_VOLTAGE_SCALE1) ? \
((__VALUE__) <= UTILS_MAX_FREQUENCY_SCALE1) : \
(LL_PWR_GetRegulVoltageScaling() == LL_PWR_REGU_VOLTAGE_SCALE2) ? \
((__VALUE__) <= UTILS_MAX_FREQUENCY_SCALE2) : \
((__VALUE__) <= UTILS_MAX_FREQUENCY_SCALE3))
#define IS_LL_UTILS_HSE_BYPASS(__STATE__) (((__STATE__) == LL_UTILS_HSEBYPASS_ON) \
|| ((__STATE__) == LL_UTILS_HSEBYPASS_DIGITAL_ON) \
|| ((__STATE__) == LL_UTILS_HSEBYPASS_OFF))
#define IS_LL_UTILS_HSE_FREQUENCY(__FREQUENCY__) (((__FREQUENCY__) >= UTILS_HSE_FREQUENCY_MIN) &&\
((__FREQUENCY__) <= UTILS_HSE_FREQUENCY_MAX))
/**
* @}
*/
/* Private function prototypes -----------------------------------------------*/
/** @defgroup UTILS_LL_Private_Functions UTILS Private functions
* @{
*/
static uint32_t UTILS_GetPLLOutputFrequency(uint32_t PLL_InputFrequency,
const LL_UTILS_PLLInitTypeDef *UTILS_PLLInitStruct);
static ErrorStatus UTILS_EnablePLLAndSwitchSystem(uint32_t SYSCLK_Frequency,
LL_UTILS_ClkInitTypeDef *UTILS_ClkInitStruct);
static ErrorStatus UTILS_PLL_IsBusy(void);
/**
* @}
*/
/* Exported functions --------------------------------------------------------*/
/** @addtogroup UTILS_LL_Exported_Functions
* @{
*/
/** @addtogroup UTILS_LL_EF_DELAY
* @{
*/
/**
* @brief This function configures the Cortex-M SysTick source to have 1ms time base with HCLK
* as SysTick clock source.
* @note When a RTOS is used, it is recommended to avoid changing the Systick
* configuration by calling this function, for a delay use rather osDelay RTOS service.
* @param HCLKFrequency HCLK frequency in Hz
* @note HCLK frequency can be calculated thanks to RCC helper macro or function @ref LL_RCC_GetSystemClocksFreq
* @retval None
*/
void LL_Init1msTick(uint32_t HCLKFrequency)
{
/* Use frequency provided in argument */
LL_InitTick(HCLKFrequency, 1000U);
}
/**
* @brief This function configures the Cortex-M SysTick source to have 1ms time base with HCLK/8
* as SysTick clock source.
* @note When a RTOS is used, it is recommended to avoid changing the Systick
* configuration by calling this function, for a delay use rather osDelay RTOS service.
* @param HCLKFrequency HCLK frequency in Hz
* @retval None
*/
void LL_Init1msTick_HCLK_Div8(uint32_t HCLKFrequency)
{
/* Configure the SysTick to have 1ms time base with HCLK/8 as SysTick clock source */
SysTick->LOAD = (uint32_t)((HCLKFrequency / 8000U) - 1UL);
SysTick->VAL = 0UL;
SysTick->CTRL = SysTick_CTRL_ENABLE_Msk;
}
/**
* @brief This function configures the Cortex-M SysTick source to have 1ms time base with LSE as SysTick clock source.
* @note When a RTOS is used, it is recommended to avoid changing the Systick
* configuration by calling this function, for a delay use rather osDelay RTOS service.
* @retval None
*/
void LL_Init1msTick_LSE(void)
{
/* Configure the SysTick to have 1ms time base with LSE as SysTick clock source */
SysTick->LOAD = (uint32_t)((LSE_VALUE / 1000U) - 1UL);
SysTick->VAL = 0UL;
SysTick->CTRL = SysTick_CTRL_ENABLE_Msk;
}
/**
* @brief This function configures the Cortex-M SysTick source to have 1ms time base with LSI as SysTick clock source.
* @note When a RTOS is used, it is recommended to avoid changing the Systick
* configuration by calling this function, for a delay use rather osDelay RTOS service.
* @retval None
*/
void LL_Init1msTick_LSI(void)
{
/* Configure the SysTick to have 1ms time base with LSI as SysTick clock source */
SysTick->LOAD = (uint32_t)((LSI_VALUE / 1000U) - 1UL);
SysTick->VAL = 0UL;
SysTick->CTRL = SysTick_CTRL_ENABLE_Msk;
}
/**
* @brief This function provides minimum delay (in milliseconds) based
* on SysTick counter flag
* @note When a RTOS is used, it is recommended to avoid using blocking delay
* and use rather osDelay service.
* @note To respect 1ms timebase, user should call @ref LL_Init1msTick function which
* will configure Systick to 1ms
* @param Delay specifies the minimum delay time length, in milliseconds.
* @retval None
*/
void LL_mDelay(uint32_t Delay)
{
__IO uint32_t tmp = SysTick->CTRL; /* Clear the COUNTFLAG first */
uint32_t tmpDelay = Delay;
/* Add this code to indicate that local variable is not used */
((void)tmp);
/* Add a period to guaranty minimum wait */
if (tmpDelay < LL_MAX_DELAY)
{
tmpDelay++;
}
while (tmpDelay != 0U)
{
if ((SysTick->CTRL & SysTick_CTRL_COUNTFLAG_Msk) != 0U)
{
tmpDelay--;
}
}
}
/**
* @}
*/
/** @addtogroup UTILS_EF_SYSTEM
* @brief System Configuration functions
*
@verbatim
===============================================================================
##### System Configuration functions #####
===============================================================================
[..]
System, AHB and APB buses clocks configuration
(+) The maximum frequency of the SYSCLK is 250 MHz and HCLK is 250 MHz.
(+) The maximum frequency of the PCLK1, PCLK2 and PCLK3 is 250 MHz.
@endverbatim
@internal
Depending on the device voltage range, the maximum frequency should be
adapted accordingly:
(++) Table 1. HCLK clock frequency for STM32H5 devices
(++) +-----------------------------------------------------------------------------------------------+
(++) | Latency | HCLK clock frequency (MHz) |
(++) | |-----------------------------------------------------------------------------|
(++) | | voltage range 0 | voltage range 1 | voltage range 2 | voltage range 3 |
(++) | | 1.30 - 1.40V | 1.15 - 1.26V | 1.05 - 1.15V | 0,95 - 1,05V |
(++) |-----------------|-------------------|------------------|------------------|-------------------|
(++) |0WS(1 CPU cycles)| 0 < HCLK <= 42 | 0 < HCLK <= 34 | 0 < HCLK <= 30 | 0 < HCLK <= 20 |
(++) |-----------------|-------------------|------------------|------------------|-------------------|
(++) |1WS(2 CPU cycles)| 42 < HCLK <= 84 | 34 < HCLK <= 68 | 30 < HCLK <= 60 | 20 < HCLK <= 40 |
(++) |-----------------|-------------------|------------------|------------------|-------------------|
(++) |2WS(3 CPU cycles)| 84 < HCLK <= 126 | 68 < HCLK <= 102 | 60 < HCLK <= 90 | 40 < HCLK <= 60 |
(++) |-----------------|-------------------|------------------|------------------|-------------------|
(++) |3WS(4 CPU cycles)| 126 < HCLK <= 168 | 102 < HCLK <= 136| 90 < HCLK <= 120 | 60 < HCLK <= 80 |
(++) |-----------------|-------------------|------------------|------------------|-------------------|
(++) |4WS(5 CPU cycles)| 168 < HCLK <= 210| 136 < HCLK <= 170| 120 < HCLK <= 150| 80 < HCLK <= 100 |
(++) |-----------------|-------------------|------------------|------------------|-------------------|
(++) |5WS(6 CPU cycles)| 210 < HCLK <= 250| 170 < HCLK <= 200| NA | NA |
(++) +-----------------+-------------------+------------------+------------------+-------------------+
@endinternal
* @{
*/
/**
* @brief This function sets directly SystemCoreClock CMSIS variable.
* @note Variable can be calculated also through SystemCoreClockUpdate function.
* @param HCLKFrequency HCLK frequency in Hz (can be calculated thanks to RCC helper macro)
* @retval None
*/
void LL_SetSystemCoreClock(uint32_t HCLKFrequency)
{
/* HCLK clock frequency */
SystemCoreClock = HCLKFrequency;
}
/**
* @brief This function configures system clock at maximum frequency with CSI as clock source of the PLL1
* @note The application needs to ensure that all PLLs is disabled.
* @note Function is based on the following formula:
* - PLL1 output frequency = (((CSI frequency / PLL1M) * PLL1N) / PLL1P)
* - PLL1M: ensure that the VCO input frequency ranges from 1 to 16 MHz (PLL1VCO_input = CSI frequency / PLL1M)
* - PLL1N: ensure that the VCO output frequency is between 192 and 836 MHz
* (PLL1VCO_output = PLL1VCO_input * PLL1N)
* - PLL1P: ensure that max frequency at 250 MHz is reached (PLL1VCO_output / PLL1P)
* @param UTILS_PLLInitStruct pointer to a @ref LL_UTILS_PLLInitTypeDef structure that contains
* the configuration information for the PLL.
* @param UTILS_ClkInitStruct pointer to a @ref LL_UTILS_ClkInitTypeDef structure that contains
* the configuration information for the BUS prescalers.
* @retval An ErrorStatus enumeration value:
* - SUCCESS: Max frequency configuration done
* - ERROR: Max frequency configuration not done
*/
ErrorStatus LL_PLL_ConfigSystemClock_CSI(LL_UTILS_PLLInitTypeDef *UTILS_PLLInitStruct,
LL_UTILS_ClkInitTypeDef *UTILS_ClkInitStruct)
{
ErrorStatus status;
#ifdef USE_FULL_ASSERT
uint32_t vcoinput_freq;
uint32_t vcooutput_freq;
#endif /* USE_FULL_ASSERT */
uint32_t pllfreq;
/* Check the parameters */
assert_param(IS_LL_UTILS_PLLM_VALUE(UTILS_PLLInitStruct->PLLM));
assert_param(IS_LL_UTILS_PLLN_VALUE(UTILS_PLLInitStruct->PLLN));
assert_param(IS_LL_UTILS_PLLP_VALUE(UTILS_PLLInitStruct->PLLP));
assert_param(IS_LL_UTILS_FRACN_VALUE(UTILS_PLLInitStruct->FRACN));
/* Check VCO Input frequency */
#ifdef USE_FULL_ASSERT
vcoinput_freq = CSI_VALUE / UTILS_PLLInitStruct->PLLM;
#endif /* USE_FULL_ASSERT */
assert_param(IS_LL_UTILS_PLLVCO_INPUT(vcoinput_freq, UTILS_PLLInitStruct->VCO_Input));
/* Check VCO Input ranges */
assert_param(IS_LL_UTILS_CHECK_VCO_RANGES(UTILS_PLLInitStruct->VCO_Input, UTILS_PLLInitStruct->VCO_Output));
/* Check VCO Output frequency */
#ifdef USE_FULL_ASSERT
vcooutput_freq = LL_RCC_CalcPLLClockFreq(CSI_VALUE, UTILS_PLLInitStruct->PLLM, UTILS_PLLInitStruct->PLLN,
UTILS_PLLInitStruct->FRACN, 1U);
/* PLL1P Set to 1 to check the assert param (VCO_output)*/
#endif /* USE_FULL_ASSERT */
assert_param(IS_LL_UTILS_PLLVCO_OUTPUT(vcooutput_freq, UTILS_PLLInitStruct->VCO_Output));
/* Check if the main PLL is enabled */
if (UTILS_PLL_IsBusy() == SUCCESS)
{
/* Calculate the new PLL output frequency */
pllfreq = UTILS_GetPLLOutputFrequency(CSI_VALUE, UTILS_PLLInitStruct);
/* Enable CSI if not enabled */
if (LL_RCC_CSI_IsReady() != 1U)
{
LL_RCC_CSI_Enable();
while (LL_RCC_CSI_IsReady() != 1U)
{
/* Wait for CSI ready */
}
}
/* Configure PLL */
LL_RCC_PLL1_ConfigDomain_SYS(LL_RCC_PLL1SOURCE_CSI, UTILS_PLLInitStruct->PLLM, UTILS_PLLInitStruct->PLLN,
UTILS_PLLInitStruct->PLLP);
LL_RCC_PLL1FRACN_Disable();
LL_RCC_PLL1_SetFRACN(UTILS_PLLInitStruct->FRACN);
LL_RCC_PLL1FRACN_Enable();
LL_RCC_PLL1_SetVCOInputRange(UTILS_PLLInitStruct->VCO_Input);
LL_RCC_PLL1_SetVCOOutputRange(UTILS_PLLInitStruct->VCO_Output);
/* Enable PLL and switch system clock to PLL */
status = UTILS_EnablePLLAndSwitchSystem(pllfreq, UTILS_ClkInitStruct);
}
else
{
/* Current PLL configuration cannot be modified */
status = ERROR;
}
return status;
}
/**
* @brief This function configures system clock at maximum frequency with HSI as clock source of the PLL1
* @note The application need to ensure that all PLLs are disabled.
* @note Function is based on the following formula:
* - PLL1 output frequency = (((HSI frequency / PLL1M) * PLL1N) / PLL1P)
* - PLL1M: ensure that the VCO input frequency ranges from 1 to 16 MHz (PLL1VCO_input = HSI frequency / PLL1M)
* - PLL1N: ensure that the VCO output frequency is between 150 and 836 MHz
* (PLL1VCO_output = PLL1VCO_input * PLL1N)
* - PLL1P: ensure that max frequency at 250 MHz is reach (PLL1VCO_output / PLL1P)
* @param UTILS_PLLInitStruct pointer to a @ref LL_UTILS_PLLInitTypeDef structure that contains
* the configuration information for the PLL1.
* @param UTILS_ClkInitStruct pointer to a @ref LL_UTILS_ClkInitTypeDef structure that contains
* the configuration information for the BUS prescalers.
* @retval An ErrorStatus enumeration value:
* - SUCCESS: Max frequency configuration done
* - ERROR: Max frequency configuration not done
*
*
*/
ErrorStatus LL_PLL_ConfigSystemClock_HSI(LL_UTILS_PLLInitTypeDef *UTILS_PLLInitStruct,
LL_UTILS_ClkInitTypeDef *UTILS_ClkInitStruct)
{
ErrorStatus status;
#ifdef USE_FULL_ASSERT
uint32_t vcoinput_freq;
uint32_t vcooutput_freq;
#endif /* USE_FULL_ASSERT */
uint32_t pllfreq;
uint32_t hsi_clk;
/* Check the parameters */
assert_param(IS_LL_UTILS_PLLM_VALUE(UTILS_PLLInitStruct->PLLM));
assert_param(IS_LL_UTILS_PLLN_VALUE(UTILS_PLLInitStruct->PLLN));
assert_param(IS_LL_UTILS_PLLP_VALUE(UTILS_PLLInitStruct->PLLP));
assert_param(IS_LL_UTILS_FRACN_VALUE(UTILS_PLLInitStruct->FRACN));
hsi_clk = (HSI_VALUE >> (LL_RCC_HSI_GetDivider() >> RCC_CR_HSIDIV_Pos));
/* Check VCO Input frequency */
#ifdef USE_FULL_ASSERT
vcoinput_freq = hsi_clk / UTILS_PLLInitStruct->PLLM;
#endif /* USE_FULL_ASSERT */
assert_param(IS_LL_UTILS_PLLVCO_INPUT(vcoinput_freq, UTILS_PLLInitStruct->VCO_Input));
/* Check VCO Input ranges */
assert_param(IS_LL_UTILS_CHECK_VCO_RANGES(UTILS_PLLInitStruct->VCO_Input, UTILS_PLLInitStruct->VCO_Output));
/* Check VCO Output frequency */
#ifdef USE_FULL_ASSERT
vcooutput_freq = LL_RCC_CalcPLLClockFreq(hsi_clk, UTILS_PLLInitStruct->PLLM, UTILS_PLLInitStruct->PLLN,
UTILS_PLLInitStruct->FRACN, 1UL);
/* PLL1P Set to 1 to check the assert param (VCO_output)*/
#endif /* USE_FULL_ASSERT */
assert_param(IS_LL_UTILS_PLLVCO_OUTPUT(vcooutput_freq, UTILS_PLLInitStruct->VCO_Output));
/* Check if the main PLL is enabled */
if (UTILS_PLL_IsBusy() == SUCCESS)
{
/* Calculate the new PLL output frequency */
pllfreq = UTILS_GetPLLOutputFrequency(hsi_clk, UTILS_PLLInitStruct);
/* Enable HSI if not enabled */
if (LL_RCC_HSI_IsReady() != 1U)
{
LL_RCC_HSI_Enable();
while (LL_RCC_HSI_IsReady() != 1U)
{
/* Wait for HSI ready */
}
}
/* Configure PLL */
LL_RCC_PLL1_ConfigDomain_SYS(LL_RCC_PLL1SOURCE_HSI, UTILS_PLLInitStruct->PLLM, UTILS_PLLInitStruct->PLLN,
UTILS_PLLInitStruct->PLLP);
LL_RCC_PLL1FRACN_Disable();
LL_RCC_PLL1_SetFRACN(UTILS_PLLInitStruct->FRACN);
LL_RCC_PLL1FRACN_Enable();
LL_RCC_PLL1_SetVCOInputRange(UTILS_PLLInitStruct->VCO_Input);
LL_RCC_PLL1_SetVCOOutputRange(UTILS_PLLInitStruct->VCO_Output);
/* Enable PLL and switch system clock to PLL */
status = UTILS_EnablePLLAndSwitchSystem(pllfreq, UTILS_ClkInitStruct);
}
else
{
/* Current PLL configuration cannot be modified */
status = ERROR;
}
return status;
}
/**
* @brief This function configures system clock with HSE as clock source of the PLL1
* @note The application needs to ensure that the PLL1 is disabled.
* @note Function is based on the following formula:
* - PLL1 output frequency = (((HSE frequency / PLL1M) * PLL1N) / PLL1P)
* - PLL1M: ensure that the VCO input frequency ranges from 1 to 16 MHz (PLL1VCO_input = HSE frequency / PLL1M)
* - PLL1N: ensure that the VCO output frequency is between 192 and 836 MHz
* (PLL1VCO_output = PLL1VCO_input * PLL1N)
* - PLL1P: ensure that max frequency at 250 MHz is reached (PLL1VCO_output / PLL1P)
* @param HSEFrequency Value between Min_Data = 4000000 and Max_Data = 50000000
* @param HSEBypass This parameter can be one of the following values:
* @arg @ref LL_UTILS_HSEBYPASS_ON
* @arg @ref LL_UTILS_HSEBYPASS_OFF
* @param UTILS_PLLInitStruct pointer to a @ref LL_UTILS_PLLInitTypeDef structure that contains
* the configuration information for the PLL.
* @param UTILS_ClkInitStruct pointer to a @ref LL_UTILS_ClkInitTypeDef structure that contains
* the configuration information for the BUS prescalers.
* @retval An ErrorStatus enumeration value:
* - SUCCESS: Max frequency configuration done
* - ERROR: Max frequency configuration not done
*/
ErrorStatus LL_PLL_ConfigSystemClock_HSE(uint32_t HSEFrequency, uint32_t HSEBypass,
LL_UTILS_PLLInitTypeDef *UTILS_PLLInitStruct,
LL_UTILS_ClkInitTypeDef *UTILS_ClkInitStruct)
{
ErrorStatus status;
#ifdef USE_FULL_ASSERT
uint32_t vcoinput_freq;
uint32_t vcooutput_freq;
#endif /* USE_FULL_ASSERT */
uint32_t pllfreq;
/* Check the parameters */
assert_param(IS_LL_UTILS_PLLM_VALUE(UTILS_PLLInitStruct->PLLM));
assert_param(IS_LL_UTILS_PLLN_VALUE(UTILS_PLLInitStruct->PLLN));
assert_param(IS_LL_UTILS_PLLP_VALUE(UTILS_PLLInitStruct->PLLP));
assert_param(IS_LL_UTILS_FRACN_VALUE(UTILS_PLLInitStruct->FRACN));
assert_param(IS_LL_UTILS_HSE_FREQUENCY(HSEFrequency));
assert_param(IS_LL_UTILS_HSE_BYPASS(HSEBypass));
/* Check VCO Input frequency */
#ifdef USE_FULL_ASSERT
vcoinput_freq = HSEFrequency / UTILS_PLLInitStruct->PLLM;
#endif /* USE_FULL_ASSERT */
assert_param(IS_LL_UTILS_PLLVCO_INPUT(vcoinput_freq, UTILS_PLLInitStruct->VCO_Input));
/* Check VCO Input/output ranges compatibility */
assert_param(IS_LL_UTILS_CHECK_VCO_RANGES(UTILS_PLLInitStruct->VCO_Input, UTILS_PLLInitStruct->VCO_Output));
/* Check VCO output frequency */
#ifdef USE_FULL_ASSERT
vcooutput_freq = LL_RCC_CalcPLLClockFreq(HSEFrequency, UTILS_PLLInitStruct->PLLM, UTILS_PLLInitStruct->PLLN,
UTILS_PLLInitStruct->FRACN, 1U);
/* PLL1P Set to 1 to check the assert param (VCO_output)*/
#endif /* USE_FULL_ASSERT */
assert_param(IS_LL_UTILS_PLLVCO_OUTPUT(vcooutput_freq, UTILS_PLLInitStruct->VCO_Output));
/* Check if the main PLL is enabled */
if (UTILS_PLL_IsBusy() == SUCCESS)
{
/* Calculate the new PLL output frequency */
pllfreq = UTILS_GetPLLOutputFrequency(HSEFrequency, UTILS_PLLInitStruct);
/* Enable HSE if not enabled */
if (LL_RCC_HSE_IsReady() != 1U)
{
/* Check if need to enable HSE bypass feature or not */
if (HSEBypass == LL_UTILS_HSEBYPASS_ON)
{
LL_RCC_HSE_EnableBypass();
LL_RCC_HSE_SetExternalClockType(LL_RCC_HSE_ANALOG_TYPE);
}
else if (HSEBypass == LL_UTILS_HSEBYPASS_DIGITAL_ON)
{
LL_RCC_HSE_EnableBypass();
LL_RCC_HSE_SetExternalClockType(LL_RCC_HSE_DIGITAL_TYPE);
}
else
{
LL_RCC_HSE_DisableBypass();
}
/* Enable HSE */
LL_RCC_HSE_Enable();
while (LL_RCC_HSE_IsReady() != 1U)
{
/* Wait for HSE ready */
}
}
/* Configure PLL */
LL_RCC_PLL1_ConfigDomain_SYS(LL_RCC_PLL1SOURCE_HSE, UTILS_PLLInitStruct->PLLM, UTILS_PLLInitStruct->PLLN,
UTILS_PLLInitStruct->PLLP);
LL_RCC_PLL1FRACN_Disable();
LL_RCC_PLL1_SetFRACN(UTILS_PLLInitStruct->FRACN);
LL_RCC_PLL1FRACN_Enable();
LL_RCC_PLL1_SetVCOInputRange(UTILS_PLLInitStruct->VCO_Input);
LL_RCC_PLL1_SetVCOOutputRange(UTILS_PLLInitStruct->VCO_Output);
/* Enable PLL and switch system clock to PLL */
status = UTILS_EnablePLLAndSwitchSystem(pllfreq, UTILS_ClkInitStruct);
}
else
{
/* Current PLL configuration cannot be modified */
status = ERROR;
}
return status;
}
/**
* @}
*/
/**
* @}
*/
/**
* @brief Update number of Flash wait states in line with new frequency and current
voltage range.
* @param HCLK_Frequency HCLK frequency
* @retval An ErrorStatus enumeration value:
* - SUCCESS: Latency has been modified
* - ERROR: Latency cannot be modified
*/
ErrorStatus LL_SetFlashLatency(uint32_t HCLK_Frequency)
{
ErrorStatus status = SUCCESS;
uint32_t timeout;
uint32_t getlatency;
uint32_t latency = LL_FLASH_LATENCY_0; /* default value 0WS */
/* Frequency cannot be equal to 0 */
if (HCLK_Frequency == 0U)
{
status = ERROR;
}
else
{
if (LL_PWR_GetRegulVoltageScaling() == LL_PWR_REGU_VOLTAGE_SCALE0)
{
if (HCLK_Frequency <= UTILS_SCALE0_LATENCY0_FREQ)
{
/* 0 < HCLK <= 42 => 0WS (1 CPU cycles) : Do nothing, keep latency to default LL_FLASH_LATENCY_0 */
}
else if ((HCLK_Frequency <= UTILS_SCALE0_LATENCY1_FREQ))
{
/* 42 < HCLK <=84 => 1WS (2 CPU cycles) */
latency = LL_FLASH_LATENCY_1;
}
else if (HCLK_Frequency <= UTILS_SCALE0_LATENCY2_FREQ)
{
/* 84 < HCLK <= 126 => 2WS (3 CPU cycles) */
latency = LL_FLASH_LATENCY_2;
}
else if (HCLK_Frequency <= UTILS_SCALE0_LATENCY3_FREQ)
{
/* 126 < HCLK <= 168 => 3WS (4 CPU cycles) */
latency = LL_FLASH_LATENCY_3;
}
else if (HCLK_Frequency <= UTILS_SCALE0_LATENCY4_FREQ)
{
/* 168 < HCLK <= 210 => 4WS (5 CPU cycles) */
latency = LL_FLASH_LATENCY_4;
}
else if (HCLK_Frequency <= UTILS_SCALE0_LATENCY5_FREQ)
{
/* 210 < HCLK <= 250 => 5WS (6 CPU cycles) */
latency = LL_FLASH_LATENCY_5;
}
else
{
status = ERROR;
}
}
else if (LL_PWR_GetRegulVoltageScaling() == LL_PWR_REGU_VOLTAGE_SCALE1)
{
if (HCLK_Frequency <= UTILS_SCALE1_LATENCY0_FREQ)
{
/* 0 < HCLK <= 34 => 0WS (1 CPU cycles) : Do nothing, keep latency to default LL_FLASH_LATENCY_0 */
}
else if (HCLK_Frequency <= UTILS_SCALE1_LATENCY1_FREQ)
{
/* 34 < HCLK <=68 => 1WS (2 CPU cycles) */
latency = LL_FLASH_LATENCY_1;
}
else if (HCLK_Frequency <= UTILS_SCALE1_LATENCY2_FREQ)
{
/* 68 < HCLK <= 102 => 2WS (3 CPU cycles) */
latency = LL_FLASH_LATENCY_2;
}
else if (HCLK_Frequency <= UTILS_SCALE1_LATENCY3_FREQ)
{
/* 102 < HCLK <= 136 => 3WS (4 CPU cycles) */
latency = LL_FLASH_LATENCY_3;
}
else if (HCLK_Frequency <= UTILS_SCALE1_LATENCY4_FREQ)
{
/* 136 < HCLK <= 170 => 4WS (5 CPU cycles) */
latency = LL_FLASH_LATENCY_4;
}
else if (HCLK_Frequency <= UTILS_SCALE1_LATENCY5_FREQ)
{
/* 170 < HCLK <= 200 => 5WS (6 CPU cycles) */
latency = LL_FLASH_LATENCY_5;
}
else
{
status = ERROR;
}
}
else if (LL_PWR_GetRegulVoltageScaling() == LL_PWR_REGU_VOLTAGE_SCALE2)
{
if (HCLK_Frequency <= UTILS_SCALE2_LATENCY0_FREQ)
{
/* 0 < HCLK <= 30 => 0WS (1 CPU cycles) : Do nothing, keep latency to default LL_FLASH_LATENCY_0 */
}
else if (HCLK_Frequency <= UTILS_SCALE2_LATENCY1_FREQ)
{
/* 30 < HCLK <= 60 => 1WS (2 CPU cycles) */
latency = LL_FLASH_LATENCY_1;
}
else if (HCLK_Frequency <= UTILS_SCALE2_LATENCY2_FREQ)
{
/* 60 < HCLK <= 90 => 2WS (3 CPU cycles) */
latency = LL_FLASH_LATENCY_2;
}
else if (HCLK_Frequency <= UTILS_SCALE2_LATENCY3_FREQ)
{
/* 90 < HCLK <= 120 => 3WS (4 CPU cycles) */
latency = LL_FLASH_LATENCY_3;
}
else if (HCLK_Frequency <= UTILS_SCALE2_LATENCY4_FREQ)
{
/* 120 < HCLK <= 150 => 4WS (5 CPU cycles) */
latency = LL_FLASH_LATENCY_4;
}
else
{
status = ERROR;
}
}
else /* Voltage Scale 3 */
{
if (HCLK_Frequency <= UTILS_SCALE3_LATENCY0_FREQ)
{
/* 0 < HCLK <= 20 => 0WS (1 CPU cycles) : Do nothing, keep latency to default LL_FLASH_LATENCY_0 */
}
else if (HCLK_Frequency <= UTILS_SCALE3_LATENCY1_FREQ)
{
/* 20 < HCLK <= 40 => 1WS (2 CPU cycles) */
latency = LL_FLASH_LATENCY_1;
}
else if (HCLK_Frequency <= UTILS_SCALE3_LATENCY2_FREQ)
{
/* 40 < HCLK <= 60 => 2WS (3 CPU cycles) */
latency = LL_FLASH_LATENCY_2;
}
else if (HCLK_Frequency <= UTILS_SCALE3_LATENCY3_FREQ)
{
/* 60 < HCLK <= 80 => 3WS (4 CPU cycles) */
latency = LL_FLASH_LATENCY_3;
}
else if (HCLK_Frequency <= UTILS_SCALE3_LATENCY4_FREQ)
{
/* 80 < HCLK <= 100 => 4WS (5 CPU cycles) */
latency = LL_FLASH_LATENCY_4;
}
else
{
status = ERROR;
}
}
}
if (status == SUCCESS)
{
LL_FLASH_SetLatency(latency);
/* Check that the new number of wait states is taken into account to access the Flash
memory by reading the FLASH_ACR register */
timeout = 2;
do
{
/* Wait for Flash latency to be updated */
getlatency = LL_FLASH_GetLatency();
timeout--;
} while ((getlatency != latency) && (timeout > 0U));
if (getlatency != latency)
{
status = ERROR;
}
}
return status;
}
/** @addtogroup UTILS_LL_Private_Functions
* @{
*/
/**
* @brief Function to Get PLL1 Output frequency
* @param PLL_InputFrequency PLL1 input frequency (in Hz)
* @param UTILS_PLLInitStruct pointer to a @ref LL_UTILS_PLLInitTypeDef structure that contains
* the configuration information for the PLL.
* @retval PLL output frequency (in Hz)
*/
static uint32_t UTILS_GetPLLOutputFrequency(uint32_t PLL_InputFrequency,
const LL_UTILS_PLLInitTypeDef *UTILS_PLLInitStruct)
{
uint32_t pllfreq;
/* Check the parameters */
assert_param(IS_LL_UTILS_PLLM_VALUE(UTILS_PLLInitStruct->PLLM));
assert_param(IS_LL_UTILS_PLLN_VALUE(UTILS_PLLInitStruct->PLLN));
assert_param(IS_LL_UTILS_PLLP_VALUE(UTILS_PLLInitStruct->PLLP));
assert_param(IS_LL_UTILS_FRACN_VALUE(UTILS_PLLInitStruct->FRACN));
/* Check different PLL parameters according to RM */
/* - PLLM: ensure that the VCO input frequency is in the correct range. */
pllfreq = PLL_InputFrequency / (UTILS_PLLInitStruct->PLLM);
assert_param(IS_LL_UTILS_PLLVCO_INPUT(pllfreq, UTILS_PLLInitStruct->VCO_Input));
/* - PLLN: ensure that the VCO output frequency is in the correct range. */
pllfreq = pllfreq * (UTILS_PLLInitStruct->PLLN);
assert_param(IS_LL_UTILS_PLLVCO_OUTPUT(pllfreq, UTILS_PLLInitStruct->VCO_Output));
/* - PLLP: ensure that PLL1P output frequency does not exceed the corresponding maximum voltage scale frequency. */
pllfreq = pllfreq / (UTILS_PLLInitStruct->PLLP);
assert_param(IS_LL_UTILS_PLL_FREQUENCY(pllfreq));
return pllfreq;
}
/**
* @brief Function to check that main PLL can be modified
* @retval An ErrorStatus enumeration value:
* - SUCCESS: Main PLL modification can be done
* - ERROR: Main PLL is busy
*/
static ErrorStatus UTILS_PLL_IsBusy(void)
{
ErrorStatus status = SUCCESS;
/* Check if PLL1 is busy*/
if (LL_RCC_PLL1_IsReady() != 0U)
{
/* PLL configuration cannot be modified */
status = ERROR;
}
return status;
}
/**
* @brief Function to enable PLL1 and switch system clock to PLL1
* @param SYSCLK_Frequency SYSCLK frequency
* @param UTILS_ClkInitStruct pointer to a @ref LL_UTILS_ClkInitTypeDef structure that contains
* the configuration information for the BUS prescalers.
* @retval An ErrorStatus enumeration value:
* - SUCCESS: No problem to switch system to PLL1
* - ERROR: Problem to switch system to PLL1
*/
static ErrorStatus UTILS_EnablePLLAndSwitchSystem(uint32_t SYSCLK_Frequency,
LL_UTILS_ClkInitTypeDef *UTILS_ClkInitStruct)
{
ErrorStatus status = SUCCESS;
uint32_t hclk_frequency;
assert_param(IS_LL_UTILS_SYSCLK_DIV(UTILS_ClkInitStruct->SYSCLKDivider));
assert_param(IS_LL_UTILS_APB1_DIV(UTILS_ClkInitStruct->APB1CLKDivider));
assert_param(IS_LL_UTILS_APB2_DIV(UTILS_ClkInitStruct->APB2CLKDivider));
assert_param(IS_LL_UTILS_APB3_DIV(UTILS_ClkInitStruct->APB3CLKDivider));
/* Calculate HCLK frequency */
hclk_frequency = __LL_RCC_CALC_HCLK_FREQ(SYSCLK_Frequency, UTILS_ClkInitStruct->SYSCLKDivider);
/* Increasing the number of wait states because of higher CPU frequency */
if (SystemCoreClock < hclk_frequency)
{
/* Set FLASH latency to highest latency */
status = LL_SetFlashLatency(hclk_frequency);
}
/* Update system clock configuration */
if (status == SUCCESS)
{
/* Enable PLL1 */
LL_RCC_PLL1_Enable();
LL_RCC_PLL1P_Enable();
while (LL_RCC_PLL1_IsReady() != 1U)
{
/* Wait for PLL ready */
}
/* Set All APBxPrescaler to the Highest Divider */
LL_RCC_SetAPB1Prescaler(LL_RCC_APB1_DIV_16);
LL_RCC_SetAPB2Prescaler(LL_RCC_APB2_DIV_16);
LL_RCC_SetAPB3Prescaler(LL_RCC_APB3_DIV_16);
/* Set AHB prescaler*/
LL_RCC_SetAHBPrescaler(UTILS_ClkInitStruct->SYSCLKDivider);
/* Sysclk activation on the main PLL */
LL_RCC_SetSysClkSource(LL_RCC_SYS_CLKSOURCE_PLL1);
while (LL_RCC_GetSysClkSource() != LL_RCC_SYS_CLKSOURCE_STATUS_PLL1)
{
/* Wait for system clock switch to PLL */
}
/* Set APB1, APB2 & APB3 prescaler*/
LL_RCC_SetAPB1Prescaler(UTILS_ClkInitStruct->APB1CLKDivider);
LL_RCC_SetAPB2Prescaler(UTILS_ClkInitStruct->APB2CLKDivider);
LL_RCC_SetAPB3Prescaler(UTILS_ClkInitStruct->APB3CLKDivider);
}
/* Decreasing the number of wait states because of lower CPU frequency */
if (SystemCoreClock > hclk_frequency)
{
/* Set FLASH latency to lowest latency */
status = LL_SetFlashLatency(hclk_frequency);
}
/* Update SystemCoreClock variable */
if (status == SUCCESS)
{
LL_SetSystemCoreClock(hclk_frequency);
}
return status;
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
Reference in New Issue View Git Blame Copy Permalink