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ADC 200 not recognised

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ADC 200 not recognised

Postby Bob Mehew » Tue Jun 16, 2009 1:42 pm

Tried installing software V5.20.3 on my IBM Think Pad R50e running XP SP3. I coupled up ADC 200/100 and got error message on starting up PicoScope "ADC-200 not connected".

Noted Device Manager says LTP 1 uses resources 03BC - 03BE which some where I read was identified by Pico set up as LTP 3. So tried switching PicoScope to LTP 2 & 3 but no success. Also tried switching LTP port settings between options "Try not to use interrupt / Never use interrupt / use any interrupt assigned to..." but no success.

Just tried uninstalling the software and reinstalling. PicoScope About tool now states "ADC 200 Driver 4.86 Error 2 (HO SO)". (I did have Error 2 message previously but I can't now recall how I managed to get rid of it.)

I have tried software / hardware & leads on another PC and they work fine. Also LTP 1 port drives printer with no problem.

Any suggestions? :(
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Postby ziko » Tue Jun 16, 2009 2:02 pm

Hi Bob,

Are the other LPT ports using a card or is this in the motherboard?

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Postby Bob Mehew » Tue Jun 16, 2009 2:17 pm

Physically it is a single port on I presume the motherboard (have not opened up the case to check physical links!). The names LTP 1, 2 & 3 are only available in Device Manager and appear to be a simple name designation capability, or do I misunderstand that facility?
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Postby ziko » Wed Jun 17, 2009 1:02 pm

Hi Bob, I do not know why you would see three LPT ports in device manager when you only have one physical port. Unless something is emulating a port somehow.


From what I can gather you are using a laptop, it could be that some laptops have LPT ports that have a reduction in power. See if you can change the printer port to me in standard printer port mode as well.

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Postby Bob Mehew » Wed Jun 17, 2009 1:42 pm

Hi Ziko

I have tried switching port label using Device Manager to LTP 3 and then switching printer using port to LTP 3 which did allow me to print a test page. So it would appear that facility in Device Manager is purely a re-labeling capability.

You say "See if you can change the printer port to me in standard printer port mode as well." Could you clarify? I don't understand what "me" means. What I am to change the printer port to?

sorry for being dense.
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Postby ziko » Wed Jun 17, 2009 3:55 pm

Don't worry Bob, printer ports have gone through some changes, there are modes where it can operate faster than when it was first designed. In these modes there may be some compatibility issues.

It may be changeable in device manger, however it is most likely that it is altered through your BIOS on bootup, before you go into windows.

Usually you press f2 or hit the delete key to get into the bios.

Let me know if you have any further questions.

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Postby Bob Mehew » Wed Jun 17, 2009 7:34 pm

Hi Ziko

I am unsure what you are suggesting I should do when I get into BIOS. My BIOS reports that the parallel port is enabled in a bidirectional mode (available alternatives are ECP, EPP and output only), the base I/O address is 3BC (available alternatives are 278 & 378) and that the interrupt is set to IRQ7 (available alternative is IRQ5).

Do you want me to change some / all of these settings in BIOS? If so to what?

Bob

PS what did you mean by "me"? :?
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Postby ziko » Thu Jun 18, 2009 9:25 am

HI is there a standard of normal mode, EPP and ECP are enhanced modes which we do not want. Do not change the IRQs. If it is already in standard mode then perhaps its just that the parallel port on your computer has some kind of limitation.

The only alternative I can then see is to purchase our Parallel to USB adapter

http://www.picotech.com/usb_parallel_port.html

This would eliminate your problem.

P.S. I just realised what the "me" meant lol i did a typo and it should have been "be" D'OH sorry.

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Postby Bob Mehew » Fri Jun 19, 2009 9:13 am

Hi Ziko

The BIOS names for the modes of operation of my lap top's parallel port are: "bidirectional", "ECP", "EPP" and "output only". I therefore presume that as the lap top was set to bidirectional, that is equivalent to standard and hence the port is not compatible with the Pico device.

Thanks for pointing out the adaptor, I have now ordered one.

regards

Bob
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Postby ziko » Fri Jun 19, 2009 9:47 am

Yeah its probably bidirectional mode, so it must be just this laptop its not unheard of. The adapter should sort your problem out though.

Let me know how you get on.
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Postby Bob Mehew » Tue Jun 23, 2009 11:01 am

Received adapter today, reinstalled software and it works. :D

Thanks

Bob
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Postby ziko » Tue Jun 23, 2009 1:40 pm

Your welcome, Yep that usually does the trick :)
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