Struct rp_pac::otp_data::regs::BootselPllCfg

#[repr(transparent)]
pub struct BootselPllCfg(pub u16);

Optional PLL configuration for BOOTSEL mode. (ECC) This should be configured to produce an exact 48 MHz based on the crystal oscillator frequency. User mode software may also use this value to calculate the expected crystal frequency based on an assumed 48 MHz PLL output. If no configuration is given, the crystal is assumed to be 12 MHz. The PLL frequency can be calculated as: PLL out = (XOSC frequency / (REFDIV+1)) x FBDIV / (POSTDIV1 x POSTDIV2) Conversely the crystal frequency can be calculated as: XOSC frequency = 48 MHz x (REFDIV+1) x (POSTDIV1 x POSTDIV2) / FBDIV (Note the +1 on REFDIV is because the value stored in this OTP location is the actual divisor value minus one.) Used if and only if ENABLE_BOOTSEL_NON_DEFAULT_PLL_XOSC_CFG is set in BOOT_FLAGS0. That bit should be set only after this row and BOOTSEL_XOSC_CFG are both correctly programmed.

Tuple Fields

0: u16

Implementations

impl BootselPllCfg

pub const fn fbdiv(&self) -> u16

PLL feedback divisor, in the range 16..320 inclusive.

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

PLL feedback divisor, in the range 16..320 inclusive.

pub const fn postdiv1(&self) -> u8

PLL post-divide 1 divisor, in the range 1..7 inclusive.

pub fn set_postdiv1(&mut self, val: u8)

PLL post-divide 1 divisor, in the range 1..7 inclusive.

pub const fn postdiv2(&self) -> u8

PLL post-divide 2 divisor, in the range 1..7 inclusive.

pub fn set_postdiv2(&mut self, val: u8)

PLL post-divide 2 divisor, in the range 1..7 inclusive.

pub const fn refdiv(&self) -> bool

PLL reference divisor, minus one. Programming a value of 0 means a reference divisor of 1. Programming a value of 1 means a reference divisor of 2 (for exceptionally fast XIN inputs)

pub fn set_refdiv(&mut self, val: bool)

PLL reference divisor, minus one. Programming a value of 0 means a reference divisor of 1. Programming a value of 1 means a reference divisor of 2 (for exceptionally fast XIN inputs)

Trait Implementations

impl Clone for BootselPllCfg

fn clone(&self) -> BootselPllCfg

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Default for BootselPllCfg

fn default() -> BootselPllCfg

Returns the “default value” for a type.

impl PartialEq for BootselPllCfg

fn eq(&self, other: &BootselPllCfg) -> 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 BootselPllCfg

impl Eq for BootselPllCfg

impl StructuralPartialEq for BootselPllCfg