Struct stm32_metapac::rcc::regs::Pllfracr

#[repr(transparent)]
pub struct Pllfracr(pub u32);

RCC PLL1 fractional divider register.

Tuple Fields

0: u32

Implementations

impl Pllfracr

pub const fn fracn(&self) -> u16

fractional part of the multiplication factor for PLL1 VCO Set and reset by software to control the fractional part of the multiplication factor of the VCO. These bits can be written at any time, allowing dynamic fine-tuning of the PLL1 VCO. The software must set correctly these bits to insure that the VCO output frequency is between its valid frequency range, that is: 128 to 544 MHz if PLL1VCOSEL = 0 150 to 420 MHz if PLL1VCOSEL = 1 VCO output frequency = F_{ref1_ck} x (DIVN1 + (FRACN / 2¹³)), with DIVN1 between 8 and 420 FRACN can be between 0 and 2¹³- 1 The input frequency F_{ref1_ck} must be between 1 and 16 MHz. To change the FRACN value on-the-fly even if the PLL is enabled, the application must proceed as follows: Set the bit PLL1FRACLE to 0. Write the new fractional value into FRACN. Set the bit PLL1FRACLE to 1.

pub fn set_fracn(&mut self, val: u16)

fractional part of the multiplication factor for PLL1 VCO Set and reset by software to control the fractional part of the multiplication factor of the VCO. These bits can be written at any time, allowing dynamic fine-tuning of the PLL1 VCO. The software must set correctly these bits to insure that the VCO output frequency is between its valid frequency range, that is: 128 to 544 MHz if PLL1VCOSEL = 0 150 to 420 MHz if PLL1VCOSEL = 1 VCO output frequency = F_{ref1_ck} x (DIVN1 + (FRACN / 2¹³)), with DIVN1 between 8 and 420 FRACN can be between 0 and 2¹³- 1 The input frequency F_{ref1_ck} must be between 1 and 16 MHz. To change the FRACN value on-the-fly even if the PLL is enabled, the application must proceed as follows: Set the bit PLL1FRACLE to 0. Write the new fractional value into FRACN. Set the bit PLL1FRACLE to 1.

Trait Implementations

impl Clone for Pllfracr

fn clone(&self) -> Pllfracr

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Default for Pllfracr

fn default() -> Pllfracr

Returns the “default value” for a type.

impl PartialEq for Pllfracr

fn eq(&self, other: &Pllfracr) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for Pllfracr

impl Eq for Pllfracr

impl StructuralPartialEq for Pllfracr