Timer And Counter | Pic Microcontroller | Microcontroller
Counter and timer hardware is a crucial component of most embedded systems. In some cases, a timer measures elapsed time. The names counter and timer can be used interchangeably when talking about the hardware. The difference in terminology has more to do with how the hardware is used in a given application.
When the 8-bit count overflows, the output signal is asserted. The output signal may thereby trigger an interrupt at the processor or set a bit that the processor can read. To restart the timer, software reloads the count register with the same or a different initial value. Timers and counters are so important that you will find many examples throughout this tutorial series. As the name implies, timers can tell the time and count. Counting and timing allows for some really cool things, like controlling the brightness of LEDs, controlling the angle of servo shafts, receiving sensor data that transmit in PWM (Pulse Width Modulation ).
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