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CONFIG_CLOCK_STM32_PLL_PREDIV1

PREDIV1 Prescaler

PREDIV1 Prescaler

Type: int

Help

PREDIV1 is a PLL clock signal prescaler for any PLL input.
It is supported by STM32F04xx, STM32F07xx, STM32F09xx, STM32F030xC,
STM32F302xE, STM32F303xE and STM32F39xx parts.
If configured on a non-supported part, this config will be ignored.
Allowed values: 1 - 16.

Help

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

Defaults

  • 1

  • 1

Kconfig definitions

At drivers/clock_control/Kconfig.stm32f0_f3:19

Included via Kconfig:8Kconfig.zephyr:40drivers/Kconfig:54drivers/clock_control/Kconfig:25drivers/clock_control/Kconfig.stm32:150

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_SYSCLK_SRC_PLL && (SOC_SERIES_STM32F0X || SOC_SERIES_STM32F3X) && !CLOCK_CONTROL_STM32_HAS_DTS && !SOC_SERIES_STM32MP1X && CLOCK_CONTROL_STM32_CUBE && CLOCK_CONTROL
    help
      PREDIV1 is a PLL clock signal prescaler for any PLL input.
      It is supported by STM32F04xx, STM32F07xx, STM32F09xx, STM32F030xC,
      STM32F302xE, STM32F303xE and STM32F39xx parts.
      If configured on a non-supported part, this config will be ignored.
      Allowed values: 1 - 16.

At drivers/clock_control/Kconfig.stm32f1:25

Included via Kconfig:8Kconfig.zephyr:40drivers/Kconfig:54drivers/clock_control/Kconfig:25drivers/clock_control/Kconfig.stm32:151

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_DENSITY_DEVICE && CLOCK_STM32_SYSCLK_SRC_PLL && SOC_SERIES_STM32F1X && !CLOCK_CONTROL_STM32_HAS_DTS && !SOC_SERIES_STM32MP1X && CLOCK_CONTROL_STM32_CUBE && CLOCK_CONTROL
    help
      PREDIV1 is PLL clock signal prescaler, allowed values: 1 - 16.

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