INFORMATION OF FREQUENTIES

[Navy-Student]

Hello everybody, ik have a question about frequenties.

Ik work with the PCMCIA 6533

Can someone tell me on what freq. the labview program works.( is this the freq of the Laptop or is this the freq. of the PCI-bus)  And can I adjust or configure this freq.? Can I read somewhere what the freq is, and how?. I want to write digital data ( Boolean values size =12 bits) to LINE with a freq. of 4MHz. Is it possible to maken the entire program 4 Mhz, can I than say that also my data is also write to LINE with a freq of 4 MHz. In total I want to write 8 DIGITAL LINES of each 12 bits size.

I hope someone can help me.

Kind Regards,

JJ

[RikPrins]

Hello,

I suggest to take a look at the shipping examples for Digital generation. The output clock for the digital generation is can be either the onboard clock of the 6533 or an external clock you define yourself. For both options examples are availeble in LAbVIEW. It depends on what version of LabVIEW or driver you use if you can use DAQmx. The examples are under: Help>>Find Examples.. In the example finder choose for HArdware Input and Output and then for either DAQmx or Traditional NI-DAQ. Under DAQmx the example are under Digital Generation. Traditional NI-DAQ has its examples under Digital I/O and the 65xx. If your starting with LabVIEW I suggest you use DQmx since this is the new driver. The old (traditional NI-DAQ driver will dissapear in the future).

Regards,

RikP

[Buechsenschuetz]

Windows programs usually run non-deterministic. I.e. you never can say how long a command takes to execute.

For high speed applications usually the timer(s) of the peripheral board are used, or a software timer which runs under the 'operating system' of the peripheral board, i.e. which is rather controlled by the on-board firmware than by the Windows operating system. Both (onboard hardware timers and software timers using on board firmware) usually are independent from the host pc speed, i.e. they run with their own 'engine' (on board processor).

You should look up the specs of the board you are using for max speed of capturing digital signals.