Re: Re[2]: Board diagnostics using computer

Looking at the page again:

http://gls1electronics.com/hardware-interface/index.htm

Looks like the circuit diagram lays out that the I/O card he's using is
running five 8-bit ports (makes sense...5 x 8 = 40 pins).

I found what looks like a decent six port I/O card here:

http://www.eagledaq.com/display_product_1132.htm

Comes with software and Linux drivers. Thoughts?

----- Original Message -----
From: "peter jones" <highwayman2000@mail.ru>
To: <vectorlist@vectorlist.org>
Sent: Thursday, March 22, 2007 8:37 AM
Subject: VECTOR: Re[2]: VECTOR: Board diagnostics using computer

>
> -----Original Message-----
> From: Mark E Davidson <mark@basementarcade.com>
> To: vectorlist@vectorlist.org
> Date: Thu, 22 Mar 2007 09:07:11 -0500
> Subject: Re: VECTOR: Board diagnostics using computer
>
>>
>> Cant answer your question Mark, but whatever he built, must work well.
>> He has made himself a job selling board repair out on Ebay. Wish he
>> would sell a kit of the interface and software.. I love when computers
>> make things EASER :-)
>>
>
> well, you'd need i/o for the address & data, that's 24 lines.
> r/w, mreq, i/oreq, reset is another 4.
>
> irq's & reset are best on led's, clock would be ideal going to a
> frequency-counter.
>
> for the i/o you could start here with this guy's usb i/o project.
> http://www.cesko.host.sk/IgorPlugUSB/IgorPlug-USB%20(AVR)_eng.htm
>
> use a bigger pincount atmel & have the entire 40pin header linked to i/o!
> then you only need to scope the irq & clock.
> or use a special subroutine in the atmel to try to calculate the
> clockspeed.
> i'm not sure how feaseable that is - there are atmel frequency counters
> upto 8mhz but they may need input on a specific pin.
>
> incidentally, i found this a while back!
> http://minila.sourceforge.net/
>
> now if someone is selling blank pcb's - !
>
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Received on Thu Mar 22 22:51:15 2007