Parallel port clock generation

[Pichiflush]

Hello

I would like to generate a clock between 30 and 90 Mhz with the parallel port of my computer, does anybody have an idea of how to make such fast clock? I tried with pulse and square generators but labview tellme that is not able to run as fast, also I tried to use delays in squenced structures but the delays counter is in ms and with ns doesnt work properly. Any suggestion?

 Thanks

[falkpl]

30-90MHZ as rather fast I think the 6602 is upto 80MHZ  and it is very easy to run a pulse train out of one of these.  You will definatly not be able to do this with a software loop and I doubt the barallel port strobes any where near this.  A counter card is probably your best bet.  Unfortunatly if you want any resolution in your pulse train you need a clock several times faster that the 90MHz. since the steps are descrete multiples of the clock.

Paul

[falkpl]

One other option (not a cheap option unless you already have this installed) is to use the FPGA, you can run loops at 25ns speed and can achieve this speed and resolution.

Paul