Struct rp2040_hal::watchdog::Watchdog

pub struct Watchdog { /* private fields */ }

Watchdog peripheral

Implementations

impl Watchdog

pub fn new(watchdog: WATCHDOG) -> Self

Create a new Watchdog

pub fn enable_tick_generation(&mut self, cycles: u8)

Starts tick generation on clk_tick which is driven from clk_ref.

Arguments

• cycles - Total number of tick cycles before the next tick is generated. It is expected to be the frequency in MHz of clk_ref.

pub fn pause_on_debug(&mut self, pause: bool)

Defines whether or not the watchdog timer should be paused when processor(s) are in debug mode or when JTAG is accessing bus fabric

Arguments

• pause - If true, watchdog timer will be paused

pub fn read_scratch(&self, reg: ScratchRegister) -> u32

Read a scratch register

pub fn write_scratch(&mut self, reg: ScratchRegister, value: u32)

Write a scratch register

pub fn feed(&self)

Set the watchdog counter back to its load value, making sure that the watchdog reboot will not be triggered for the configured period.

pub fn start<T: Into<MicrosDurationU32>>(&mut self, period: T)

Start the watchdog. This enables a timer which will reboot the rp2040 if Watchdog::feed() does not get called for the configured period.

pub fn disable(&self)

Disable the watchdog timer.

Trait Implementations

impl Watchdog for Watchdog

fn feed(&mut self)

Triggers the watchdog. This must be done once the watchdog is started to prevent the processor being reset.

impl WatchdogDisable for Watchdog

fn disable(&mut self)

Disables the watchdog

impl WatchdogEnable for Watchdog

type Time = Duration<u32, 1, 1000000>

Unit of time used by the watchdog

fn start<T: Into<Self::Time>>(&mut self, period: T)

Starts the watchdog with a given period, typically once this is done the watchdog needs to be kicked periodically or the processor is reset.