Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

Low Vs high Frequency Pulse measurement

Status
Not open for further replies.
C

coolchip

Full Member level 2
Joined
Nov 17, 2003
Messages
125
Helped
1
Reputation
2
Reaction score
2
Trophy points
1,298
Activity points
1,109
measure high frequency pulse difference in time

What is the fundamental difference between the microcontroller programs for high and low frequency pulse measurement ?I have come across projects which measure only low frequencies like heart-beat etc , what is the reason that they can't measure high frequencies say 20,000 rpm?
 

Hi

In order to measure high frequency the Ucontroller must run at a speed 10 times faser then the measured frequency if you are not using an internal counter to measure the input frequency

But even for an internal counter you must run at least 5 time faster and to write your program in assembly language

Other waise the controller is unable to do the calculation due to slow processing time


All the best

Bobi
 

    C

    coolchip

    Points: 2
    Helpful Answer Positive Rating
Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top