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.

Direct dependencies¶

(CLOCK_STM32_SYSCLK_SRC_PLL && (SOC_SERIES_STM32F0X || SOC_SERIES_STM32F3X) && CLOCK_CONTROL_STM32_CUBE && CLOCK_CONTROL) || (CLOCK_STM32_SYSCLK_SRC_PLL && SOC_SERIES_STM32F1X && CLOCK_CONTROL_STM32_CUBE && CLOCK_CONTROL)

(Includes any dependencies from ifs and menus.)

Defaults¶

1
1

Kconfig definitions¶

At <Zephyr>/drivers/clock_control/Kconfig.stm32f0_f3:19

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:32 → <Zephyr>/drivers/Kconfig:54 → <Zephyr>/drivers/clock_control/Kconfig:25 → <Zephyr>/drivers/clock_control/Kconfig.stm32:130

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_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 <Zephyr>/drivers/clock_control/Kconfig.stm32f1:19

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:32 → <Zephyr>/drivers/Kconfig:54 → <Zephyr>/drivers/clock_control/Kconfig:25 → <Zephyr>/drivers/clock_control/Kconfig.stm32:131

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_STM32F1X && 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.)