ErrorStatus LL_PLL_ConfigSystemClock_HSE(uint32_t HSEFrequency,
uint32_t HSEBypass,
LL_UTILS_PLLInitTypeDef *UTILS_PLLInitStruct,
LL_UTILS_ClkInitTypeDef *UTILS_ClkInitStruct);
Implemented in ![]()
stm32f4xx_ll_utils.c:540
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LL_PLL_ConfigSystemClock_HSE() function
This function configures system clock with HSE as clock source of the PLL
Syntax
Arguments
HSEFrequency
Value between Min_Data = 4000000 and Max_Data = 26000000
HSEBypass
This parameter can be one of the following values: @arg LL_UTILS_HSEBYPASS_ON
@arg LL_UTILS_HSEBYPASS_OFF
UTILS_PLLInitStruct
pointer to a LL_UTILS_PLLInitTypeDef
structure that contains the configuration information for the PLL.
UTILS_ClkInitStruct
pointer to a LL_UTILS_ClkInitTypeDef
structure that contains the configuration information for the BUS prescalers.
Return value
An ErrorStatus enumeration value: - SUCCESS: Max frequency configuration done - ERROR: Max frequency configuration not done
Notes
The application need to ensure that PLL is disabled. - PLL output frequency = (((HSI frequency / PLLM) * PLLN) / PLLP) - PLLM: ensure that the VCO input frequency ranges from RCC_PLLVCO_INPUT_MIN
to RCC_PLLVCO_INPUT_MAX
(PLLVCO_input = HSI frequency / PLLM) - PLLN: ensure that the VCO output frequency is between RCC_PLLVCO_OUTPUT_MIN
and RCC_PLLVCO_OUTPUT_MAX
(PLLVCO_output = PLLVCO_input * PLLN) - PLLP: ensure that max frequency at 180000000 Hz is reach (PLLVCO_output / PLLP)
References
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Call Tree
Functions called by LL_PLL_ConfigSystemClock_HSE()
Data read by LL_PLL_ConfigSystemClock_HSE()
Data written by LL_PLL_ConfigSystemClock_HSE()
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Type of LL_PLL_ConfigSystemClock_HSE()