LL_RCC_DeInit() function
Reset the RCC clock configuration to the default reset state.
Return value
An ErrorStatus enumeration value: - SUCCESS: RCC registers are de-initialized - ERROR: not applicable
Notes
The default reset state of the clock configuration is given below: - HSI ON and used as system clock source - HSE and PLL OFF - AHB, APB1 and APB2 prescaler set to 1. - CSS, MCO OFF - All interrupts disabled This function doesn't modify the configuration of the - Peripheral clocks - LSI, LSE and RTC clocks