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Why the least time of watchdog timer is 18ms?
Not knowing your application or context, I cannot give a definite answer. However, having spent 30 years working on US military cockpit avionics display systems, this is a common number used in these contexts for the watchdog timeout period. The video field rate is 60Hz, resulting in a field time of 16.667ms. The watchdog timeout period is set to 18ms to allow a little over a millisecond longer than the field time before resetting the processor, to allow for some video sync timing jitter. Systems that were primarily stroke oriented typically used a watchdog timeout of about 17ms instead, to keep the field rate closer to 60Hz even when a timeout happened. A few systems I worked on had watchdog timeout periods of 0.1s or longer. It all depended on application and context.
What is watchdog timer in microcontroller?
the watchdog timer is a circuit that will simply time out sending an alert telling peripheral devices that data is incorrect or at least non reliable
How can I set the timer on my bathroom exhaust fan to automatically turn off after a certain period of time?
To set the timer on your bathroom exhaust fan to automatically turn off after a certain period of time, locate the timer switch on the fan and adjust it to the desired time limit. This will ensure that the fan shuts off automatically after the set duration, providing efficient ventilation in your bathroom.
How is the period related to the frequency of a timer?
The period of a timer is the reciprocal of its frequency, meaning that period (T) = 1/frequency (f). As the frequency of a timer increases, its period decreases inversely (and vice versa). For example, a timer with a frequency of 1 Hz (1 cycle per second) will have a period of 1 second, while a timer with a frequency of 10 Hz will have a period of 0.1 seconds.
What does watchdog means in terms of technically?
watchdog timer is a 16 bit counter that resets the processor when it rolls over to zero. The processor can reset the counter or turn it off, but, correctly used, it will reset the processor in case of a code crash
What does a flasher circuit in a ladder logic program look like?
Timer1 Timer2 Done Timing ---|/|---------|/|---------[Timer On - Timer 1]--- Timer2 Timer1 Done Timing ---|/|---------|/|---------[Timer On - Timer 2]--- Timer1 Timing Flash --| |--------------------( )------- Adjust the preset time for timer1 to change your "flash on" duration. Adjust the preset time for timer2 to change your "flash off" duration.
How do I set a timer on an Instant Pot?
To set a timer on an Instant Pot, press the "Manual" or "Pressure Cook" button, then use the "" and "-" buttons to adjust the cooking time. Press "Start" to begin the timer.
How do you set the timer on an Instant Pot?
To set the timer on an Instant Pot, press the "Manual" or "Pressure Cook" button, then use the "" and "-" buttons to adjust the cooking time. Press "Start" to begin the timer.
How do I set the self-timer on a Canon 5D camera?
To set the self-timer on a Canon 5D camera, press the "Drive Mode" button on the top of the camera and select the self-timer option. Then, adjust the timer settings as needed before taking your photo.
Does this microwave have a timer on it?
Yes this microwave does include a timer. It also has a special sensor that can adjust cooking time and power levels for favorite foods. Yes, this Whirlpool microwave does have a timer on it. You can set it and it will ring telling you that the time is up.
What is the period and frequency of a recording timer?
the period is 1/60 s or 0.017s and the frequency is 60Hz
How do you shutdown a computer on the network and set timer and comment?
shutdown -m \\computername - Remote computer to shutdown/restart/abort shutdown -t xx - Set timeout for shutdown to xx seconds
