Creating a binary counter with a PCI-6602 card?

[Atacama]

Hello all,

I would like to know if I can use a 6602 card to generate a 4 bit binary counter. Basically, I want to use a counter to count some TTL pulses (low frequency) and generate the count value on 4 digital outputs: 0000, 0001, 0010, 0011, etc.

Ideally, the software would only start and stop the counting task, and the hardware would do the rest.

Do you know if this is feasible?

Thanks for your help

[James_McN]

Hi Atacama,

I'm afraid I don't believe this is possible.  You could read the counter in software and output the value to a digital I/O card but there is no way to get this 'straight through' sort of connection in this hardware.  Probably the cheapest and easiest way is to look at building the basic circuit yourself.  The only way you could program hardware with LabVIEW to do this would be to use a LabVIEW FPGA card but this would be overkill if it was just for that application.

Regards,  

[AnalogKid2DigitalMan]

A 74x93 or 74x193 are 4 bit binary counter chips which may serve your application, see:

http://focus.ti.com/lit/ds/sdls940a/sdls940a.pdf

http://www.phys.au.dk/elektronik/74ls193.pdf

-AK2DM

[muku88]

hello all,

i want to generate a high to low narrow pulse using crystal osc. and down counter...

plz help how o do that???