micro seconds matlab

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I'm doing a project about the accuracy of the time until the micro-seconds in matlab, how to access the micro-seconds of time from the processor?

Posted 24-Apr-11 22:25pm

paskah

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Manfred Rudolf Bihy 25-Apr-11 4:38am

You sure do like to spread your question around do you: http://www.mathworks.com/matlabcentral/answers/6151-micro-second.
Why don't you have a picture in you CP profile like on the above site?

Richard MacCutchan 25-Apr-11 5:21am

Try using the system time, lots of different ways to get it in C, C++, C# etc.

paskah 26-Apr-11 3:24am

thanks for the answer, whether the code above can be imported into matlab, because the language that I use is matlab?and my interface to serial communication using matlab, can you help me, thanx

Richard MacCutchan 26-Apr-11 3:50am

Sorry, I have no experience with matlab, but I know it has some interface that allows it to access C++ code (or vice versa). Your best resource would be the matlab website(s).

Albert Holguin 26-Apr-11 11:34am

here's a tutorial for pulling C++ into matlab:
http://www.engineering.uiowa.edu/~dip/lecture/C++_with_Matlab.pdf

2 solutions

Solution 2

im realy nedd this code,please help me.

Posted 1-May-11 19:41pm

paskah

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mike1989 · Accepted Answer · 2011-04-25T11:18:00

Solution 1

I agree with Richard, "Try using the sytem time,lots of different ways to get it in C, C++, C# etc."

Here is one example.

C#

using System;
using System.Threading;

namespace timeTOmicro
{
   class Program
   {
      static void Main( string[] args )
      {

         long systemClock1 = DateTime.Now.Ticks; Thread.Sleep( 2 );
         long systemClock2 = DateTime.Now.Ticks;



         long nanoSecondsBetweenTimes = systemClock2 - systemClock1;

         Console.WriteLine( nanoSecondsBetweenTimes + " nano seconds between clock samples " );

         Console.ReadLine();
      }
   }
}

Posted 25-Apr-11 11:18am

mike1989

Comments

Albert Holguin 25-Apr-11 20:24pm

Do you even know what Sleep() does?

paskah 26-Apr-11 3:24am

thanks for the answer, whether the code above can be imported into matlab, because the language that I use in my final project is matlab?

Albert Holguin 26-Apr-11 11:29am

You don't want to use that code, it makes no sense and will not get you what you're looking for.

paskah 27-Apr-11 1:13am

if you can tell me what the correct code, I really need it.thanx mr.albert holguin

Albert Holguin 27-Apr-11 10:54am

the tricky part would be to get accurate resolution at that level, there's a ton of ways to do it in, google the topic... but this code above is wrong, Sleep() takes arguments in milliseconds, off the back, there's a 2 millisecond delay between his two calls

mike1989 27-Apr-11 12:00pm

Yes, I do know what sleep does. My intention was to just show an example of how the system clock could be use to capture a small time increment. I put the Thread.Sleep( 2); because with out it there is no notable difference, the result is 0.

I am sure you are aware that in the .Net platform things do not always happen in real time as you would expect.

Albert Holguin 27-Apr-11 14:22pm

exactly, so your solution in no way offers "nano seconds between clock samples"

paskah 29-Apr-11 4:51am

so,what can i do to result this project??thanx