ATEasy command duration

John K.
Bacau,

Mar 22, 2011
55 Posts

0 ✔  |  ✗ 0  

Re: ATEasy command duration

Hi there! How can I find out the time that it takes for the processor to execute an ATEasy command? I have to generate a clock pulse that has a minimum width of 300 ns and I want to build this pulse using 3 digital out commands: one that outs a '0', one with '1' and one with '0' back. The width of the '1' pulse has to be greater than 300 ns. Does anyone have any idea regarding this issue?

Solution Available
Larry S.
La Vergne, TN

Mar 22, 2011
8 Posts

1 ✔  |  ✗ 0  

Re: ATEasy command duration

Dunno about nS, but to get uS you can do the below:

I believe this would be machine dependent. On my desktop, using the tick command on a 1000 iteration for loop, the mS counter would increment from between 166 cycles to 183 cycles with an average of 175 cycles yielding a standard deviation of 6.97615, and PPM's of -51429(MIN) and 45714(Max)  This gives me a tick time of between 5.464480874 and 6.024096386 uS  (1e3* (1/count)).  You may ant a bigger sample.  I just opened the log into a spreadsheet to get the count data above - it could be automated.

GetTickCount()
{
for ( index = 0 ) to 999
    dwTime[index]=Tick()
next

for ( index = 0 ) to 999
    print index , dwTime[index]
next
}

John K.
Bacau,

Mar 23, 2011
55 Posts

0 ✔  |  ✗ 0  

Re: ATEasy command duration

Thank you very much, Larry! This helped me a lot! Keep in touch. Have a nice day!

Alex.



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