CONFIG_CLOCK_STM32_PLL_PREDIV1

PREDIV1 Prescaler

PREDIV1 Prescaler

Type: int

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PREDIV is PLLSCR clock signal prescaler, present on STM32F0 SoC having an HSE Oscillator available like the stm32f04xx, stm32f07xx, stm32f09xx and stm32f030xc parts. If configured on a non supported part, the HSI oscillator will be used a default PLL source and this config will be ignored. Allowed values: 1 - 16.

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PREDIV1 is PLL clock signal prescaler, allowed values: 1 - 16.

Defaults

  • 1

  • 1

Kconfig definitions

At drivers/clock_control/Kconfig.stm32f0_f3:15

Included via Kconfig:8Kconfig.zephyr:40drivers/Kconfig:48drivers/clock_control/Kconfig:25drivers/clock_control/Kconfig.stm32:120

Menu path: (Top) → Device Drivers → Hardware clock controller support → STM32 Reset & Clock Control

config CLOCK_STM32_PLL_PREDIV1
    int "PREDIV1 Prescaler"
    range 1 16
    default 1
    depends on CLOCK_STM32_PLL_SRC_HSE && SOC_SERIES_STM32F0X && (SOC_SERIES_STM32F0X || SOC_SERIES_STM32F3X) && CLOCK_CONTROL_STM32_CUBE && SOC_FAMILY_STM32 && CLOCK_CONTROL
    help
      PREDIV is PLLSCR clock signal prescaler, present on STM32F0 SoC having
      an HSE Oscillator available like the stm32f04xx, stm32f07xx,
      stm32f09xx and stm32f030xc parts. If configured on a non supported
      part, the HSI oscillator will be used a default PLL source and this
      config will be ignored.
      Allowed values: 1 - 16.

At drivers/clock_control/Kconfig.stm32f1:25

Included via Kconfig:8Kconfig.zephyr:40drivers/Kconfig:48drivers/clock_control/Kconfig:25drivers/clock_control/Kconfig.stm32:121

Menu path: (Top) → Device Drivers → Hardware clock controller support → STM32 Reset & Clock Control

config CLOCK_STM32_PLL_PREDIV1
    int "PREDIV1 Prescaler"
    range 1 16
    default 1
    depends on SOC_STM32F10X_CONNECTIVITY_LINE_DEVICE && CLOCK_STM32_SYSCLK_SRC_PLL && SOC_SERIES_STM32F1X && CLOCK_CONTROL_STM32_CUBE && SOC_FAMILY_STM32 && CLOCK_CONTROL
    help
      PREDIV1 is PLL clock signal prescaler, allowed values: 1 - 16.

(The ‘depends on’ condition includes propagated dependencies from ifs and menus.)