Using the MCU Timers


Posted on Feb 6, 2014

Although there are significant variations between different implementations of the general-purpose timer in different microcontrollers, there are many similarities in the principles of operation and the structure of the timer subsystem. The central element of the timer subsystem is a counter, TCNT (8 or 16-bits in length), which may be read or (so


Using the MCU Timers
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metimes) written by software. The clock for TCNT is obtained either from the system clock, divided by a programmable prescaler, or an external clock applied to one of the MCU pins. The software control upon the timer is performed by means of the.




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