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Mar 6, 2016 · I'm trying to implement a small watchdog timer class in C++ 11 that should call some code when it expires. Watchdog.h: #pragma once. #include <thread> #include <atomic> class Watchdog. { public: Watchdog(); Watchdog(unsigned int milliseconds, std::function<void()> callback); ~Watchdog();
Oct 4, 2023 · A watchdog timer (WDT) is an essential mechanism in embedded systems and critical applications. Its primary purpose is to monitor a system’s operation and initiate corrective actions when...
- Lance Harvie
A watchdog timer (WDT, or simply a watchdog), sometimes called a computer operating properly timer (COP timer), is an electronic or software timer that is used to detect and recover from computer malfunctions. Watchdog timers are widely used in computers to facilitate automatic correction of temporary hardware faults, and to prevent errant or ...
Jan 4, 2020 · Watchdog is a special timer that counts down from a predefined value. It basically has one purpose; restart your system when it reaches zero. This very simple mechanism, can be a hardware or software function, helps you maintain responsive systems easily.
Oct 1, 2001 · A watchdog timer (WDT) is a piece of hardware that can be used to automatically detect software anomalies and reset the processor if any occur. Generally speaking, a watchdog timer is based on a counter that counts down from some initial value to zero.
Aug 19, 2021 · I created a watchdog/notifier in C++ and wanted to make it better so it could be used by multiple people. The idea is that there is a timer class and event. client create events and pass a lambda function, timeout in seconds and repeat mode i.e. whether to keep the event active after a timeout or deactivate once the timeout is reached (default ...
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Reasons embedded programming differs from general-purpose computing: ⬢ Cannot assume portability ⬢ Context switching from interrupts ⬢ Limited by hardware. ⬡ memory, power, cpu speed, I/O latency ⬢ Care more about scheduling/deadlines ⬢ Safety-critical applications.
