Search results
Results from the WOW.Com Content Network
High Precision Event Timer. The High Precision Event Timer (HPET) is a hardware timer available in modern x86-compatible personal computers. Compared to older types of timers available in the x86 architecture, HPET allows more efficient processing of highly timing-sensitive applications, such as multimedia playback and OS task switching.
Interval timers are based on a free running 32-bit resolution timer. Their epoch and interval can be set as needed. Calendar times are represented using 64-bit signed Unix time. NSPR provides functions for manipulating and converting timestamps. [3] [4]
In electronics time-to-digital converters (TDCs) or time digitizers are devices commonly used to measure a time interval and convert it into digital (binary) output. In some cases [1] interpolating TDCs are also called time counters (TCs). TDCs are used to determine the time interval between two signal pulses (known as start and stop pulse).
A Microsoft document from 2002 (which advocated for the adoption of High Precision Event Timer instead) criticized the LAPIC timer for having "poor resolution" and stating that "the clocks silicon is sometimes very buggy". [10] Nevertheless, the APIC timer is used for example by Windows 7 when profiling is enabled, and by Windows 8 in all ...
The first digital timer used in organized sports was the Digitimer, developed by Cox Electronic Systems, Inc. of Salt Lake City Utah (1962). [1] It utilized a Nixie-tube readout and provided a resolution of 1/1000 second. Its first use was in ski racing but was later used by the World University Games in Moscow, Russia, the U.S. NCAA, and in ...
On Windows, the Sleep() function takes a single parameter of the number of milliseconds to sleep. The Sleep() function is included in kernel32.dll. [1] The Sleep() function has a resolution no higher than the current timer resolution, typically 16ms but at minimum 1ms, adjustable via the timeBeginPeriod() family of "media timer" APIs.
Prescaler. A prescaler is an electronic counting circuit used to reduce a high frequency electrical signal to a lower frequency by integer division. The prescaler takes the basic timer clock frequency (which may be the CPU clock frequency or may be some higher or lower frequency) and divides it by some value before feeding it to the timer ...
Programmable interval timer. (Redirected from Programmable Interval Timer) In computing and in embedded systems, a programmable interval timer (PIT) is a counter that generates an output signal when it reaches a programmed count. The output signal may trigger an interrupt.