ErrorStatus LL_PLL_ConfigSystemClock_HSI(LL_UTILS_PLLInitTypeDef *UTILS_PLLInitStruct,
LL_UTILS_ClkInitTypeDef *UTILS_ClkInitStruct);
Implemented in ![]()
stm32f4xx_ll_utils.c:483
CodeScope will show references to LL_PLL_ConfigSystemClock_HSI() from the following samples and libraries:
Symbols ![]()
loading...
Files ![]()
loading...
LL_PLL_ConfigSystemClock_HSI() function
This function configures system clock at maximum frequency with HSI as clock source of the PLL
Syntax
Arguments
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. Function is based on the following formula: - 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)
Examples
LL_PLL_ConfigSystemClock_HSI() is referenced by 1 libraries and example projects.References
| Location | Text |
|---|---|
Call Tree
Functions called by LL_PLL_ConfigSystemClock_HSI()
Data read by LL_PLL_ConfigSystemClock_HSI()
Data written by LL_PLL_ConfigSystemClock_HSI()
all items filtered out
all items filtered out
Type of LL_PLL_ConfigSystemClock_HSI()