AnalogKid2DigitalMan

DebugView can be handy at providing more details of the problem, especially with exceptions: http://technet.microsoft.com/en-us/sysinte...s/bb896647.aspx Is the dll public, private, in the GAC, what environment was it created in (ie C, C#, etc)??? -AK2DM

A. What forward current do the LED's need to light up? B. How much current can the serial port pins provide? If A>B then no LED illumination for you. -AK2DM

Do you have the DAQ or DAQmx drivers installed? The vi you mentioned sounds like it may belong to them. -AK2DM

Justin: That picture applies to me also, but I think I was a bit older. My Sharp EL-5500 II "Scientifi Computer" got me through college and I still use it today. Amazing what useful information you could store as REM statements, funny how handy those 'remarks' came in for tests http://www.rskey.org/detail.asp?manufactur...model=EL-5500II -AK2DM

Pure EnerG -AK2DM

Sweet, I want a ride! Always thought it would be cool to have my own personal hovercraft for land/water recreational travel. -AK2DM

jmtj6009: As a caution, you may want to power the chip separate from you motor battery if possible. Not sure how much electrical noise you motor will generate it may be enough to cause erratic operation of the chip. Not sure if this is feasible for your craft due to additional weight. You may want to fire up the motor and check for noise with an oscilloscope then make a decision. -AK2DM

jmtj6009: The 6501 counter is an input only, thsu you are correct that it can't send a PWM signal out. -AK2DM

Ben will love that -AK2DM

QUOTE (menghuihantang @ Mar 25 2009, 06:58 AM) Minority Report interface was actually based on a technology in development by Oblong, see the link in the first post here on the Dark Side: http://forums.ni.com/ni/board/message?boar...;thread.id=7246 -AK2DM

I tried it once, for about 15 minutes, and gave up. Not enough resolution to wire with. -AK2DM

Well Ben, I've been waiting for this find for a while now, it has now become acknowledged: Liquid water with sustained presence on Mars. Granted, it is highly laden with salt (as expected) and the retros firing upon landing may have helped, but liquid nonetheless. Cool! http://www.marsdaily.com/reports/The_Salty...n_Mars_999.html -AK2DM

Well, given the lack of details you have provided, I suggest you start reading the manual for your servo motor controller, specifically the programming commands section. -AK2DM

Advantech sells mobo's and complete IPC's. I think some of their boards/systems support up to 7-10 slots. I think they also have mobos with ISA/PCI You could also go with the Single Board Computer on a passive backplane route. http://www.advantech.com/eplatform/ More IPC's at ICI: http://www.eindustrialcomputers.com/Produc...sp?idCategory=2 -AK2DM

I'm glad Dad made him wear a helmet and gloves

Have you read the manual of the 341? If you did you would have realized that you cannot use GPIB.

Not better, but off the top of the head Stacked Sequence G String Girl Miss Queuet Front Panel(ess) Rhea Entrant

Not better, but off the top of the head Stacked Sequence G String Girl Miss Queuet Front Panel(ess) Rhea Entrant

Printing Plain text for LabVIEW BD and FP does not seem like a very useful option, does anyone know why that feature is included? Thanks -AK2DM

Printing Plain text for LabVIEW BD and FP does not seem like a very useful option, does anyone know why that feature is included? Thanks -AK2DM

Use an analog ouput on the DAQ card and drive a voltage to frequency converter circuit. -AK2DM

You could try optoisolators on the encoder signals to eliminate any ground loops, just a thought. Posting a schematic of your current setup would assist. -AK2DM

Chemm: I have no experience with FPGA and I did not look at your code, but may I suggest that the erroneous counts when the motor is ran could be caused by electrical noise generated by the motor. If you have access to an oscilloscope, look at the signal going into the counter when the motor is ran.

QUOTE (crelf @ Dec 19 2008, 07:58 AM) AKA "talking out of ones arse"

One way to generate PWM is to use an comparator chip and feed it 2 analog inputs. The first input is a triangle wave, the other is a variable DC level that adjusts the duty cycle.