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How is pulse width measured using PIC microcontroller?
LCD is used to display value of pulse width measurement in terms of time. 1 6×2 LCD is interfaced with pic microcontroller. LCD is connected with PORTB of microcontroller.
How is the PWM period measured on a microchip?
(That avoids the problem of measuring very short intervals.) Another option is to measure ON and OFF intervals (or, the PWM period, and either the ON or the OFF time) in alternate cycles of the PWM waveform. This avoids the problem of immediately shifting from measuring a HI pulse to measuring a LO pulse.
How is the width of incoming pulses measured?
There are various ways to measure the width of incoming pulses. Which is most appropriate depends on the width of the pulses, what accuracy you need, and which peripherals your PIC has.
How often does a PWM signal come in?
EDIT: the language is C, and the PWM signal is the output from a RC reciever intended for a servo, so, it is a 1-2 ms high pulse every 20 ms (if I understand that correctly) There are various ways to measure the width of incoming pulses.
What is the resolution of a pulse width?
The timer resolution of this method uses a timer Prescaler of 1:8 and a microcontroller frequency of 32 MHz giving a pulse width resolution is 1ms. With the timer Prescaler of 1:2 and the microcontroller frequency of 32MHz the resolution is 250 ns.
What is the pulse width of a 16f1827?
A newer PIC type like the 16F1827 with Timer1 configured for gate single-pulse mode could handle pulse width measurements from 1-100uS. With Fosc = 20MHz it should be fairly simple, and T1GGO/DONE bit indicates pulse/no pulse during a measurement period.
How is pulse width measured on an edge?
So pulse width is basically a on time between a positive edge and a negative edge. So if we can measure a time between a positive edge detection and next negative edge detection, we can easily measure pulse width with respect to time.