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parallel port output


murat

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Hi,

I have written the LabVıew code in the attachement for sending signals through parallel port. There is no problem with the signals, I can on-off the LEDs in the circuit repeatedly. But, I have problem with the frequency. Even if the loop is working at its highest frequency, I can not see a on-off switching of the LEDs more than approximately 0.5 Herz. Every shifting of the signal from one value to another becomes 2 seconds at a time. How can I increase the frequency of this operation???

Take care

Murat

post-5089-1148282679.jpg?width=400

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Hi,

I have written the LabVıew code in the attachement for sending signals through parallel port. There is no problem with the signals, I can on-off the LEDs in the circuit repeatedly. But, I have problem with the frequency. Even if the loop is working at its highest frequency, I can not see a on-off switching of the LEDs more than approximately 0.5 Herz. Every shifting of the signal from one value to another becomes 2 seconds at a time. How can I increase the frequency of this operation???

Take care

Murat

If you place a 1msec wait function inside the loop, does this change the frequency? Does it go faster or slower?
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