What are the features of the timer0 module?

What are the features of the timer0 module?

The Timer0 module timer/counter has the following features: To start using a timer we should understand some of the fancy terms like 8-bit/16-bit timer, Prescaler, Timer interrupts and Focs. Now, let us see what each one really means.

How are timers used in an embedded system?

Timers play an important role in embedded systems, their duty, of course, is to maintain timing for operations, be it controlling the blinking rate of the LEDs or controlling the sampling rate of the ADCs, or a simple delay on the source code.

How are ticks counted in a microcontroller timer?

Let’s go ahead and take a look at the use of periodic timers to measure events of really long durations. Usually, the timer ticks are counted and stored on an 8,16,32 or 64-bit register depending on the microcontroller. A 16bit register can count up till 2 16 -1 = 65,535 (1 is subtracted since counting starts from 0)

What are the different types of microcontroller timers?

Types of timers 1 General-Purpose Timers 2 Systick Timers 3 Real-Time clocks and 4 Watchdog timers.

The Timer0 module timer/counter has the following features: 8-bit timer/counter Readable and writable 8-bit software programmable prescaler Internal (4 Mhz) or external clock select Interrupt on overflow from FFh to 00h Edge select (rising or falling) for external clock

Where is the timer0 interrupt in the intcon Register?

The Timer0 interrupt is enabled by setting the T0IE bit (Timer0 Interrupt Enable) of the INTCON register along with the Global Interrupt Enable (GIE) bit. This interrupt would be the indication of the time out and will occur on the every overflow of the TMR0 register.

How does a timer work in a PIC microcontroller?

The Timer0 module in a PIC16F688 microcontroller is an 8-bit synchronous counter that stores the value for the counter in the special function register called TMR0. This register can be read or written at any time by software. If you write a value to it, the counter will start incrementing from there.

How to create a 1 sec delay using timer?

The following simple program creates a delay of 1 sec using Timer0: 1 sec delay using Timer0 PIC Timer1 tutorial PIC Timer2 tutorial Search this web site: PIC Microcontroller Development tools