DELAY TIME TRIGGER EVENT COLLECTED BY PICO TO THE READY

 
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epiksrl
Active User
Active User


Joined: 23 Jan 2006
Posts: 5

PostPosted: Mon Feb 06, 2006 5:12 pm    Post subject: DELAY TIME TRIGGER EVENT COLLECTED BY PICO TO THE READY Reply with quote
I HAVE TO TRIGGER A SIGNAL FROM A MOTORCYCLE AND I HAVE TO USE TRIGGER FOR CALCULATING ROUND SPEED.

adc200_set_trigger( TRUE,0,0,0,1000);
while(1){
adc200_run(1);
while(0 == adc200_ready()){
sleep(1);
}
adc200_stop();
<statements to calculate time/frequency between two spike>
}

if i work till 3000 round/sec I calculate well the round/sec if the round/sec increase I don't read well, my question is

HOW MANY DELAY TIME THERE IS FROM THE TRIGGER EVENT COLLECTED BY PICO TO THE adc200_ready() ANSWER 1

MY PROBLEM IS THAT WITH > 33 hz I DON''T GET ALL THE SAMPLE

PLEASE ANSWER ASAP, IT IS VERY URGENT
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Michael
Guru
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Joined: 07 Jul 2005
Posts: 93
Location: St Neots, Cambridgeshire
PostPosted: Thu Feb 23, 2006 11:19 am    Post subject: Reply with quote
Hello,

It is not possible to put an exact number to this.

You will need to try using the trigger and buffer together to capture the full cycle. Estimating the timebase is down to the ADC200, you will have to experiment to obtain optimum settings.

Best regards,
Michael
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