Re: Commodore BTX Modul

From: John (john_at_ucc.gu.uwa.edu.au)
Date: 1999-10-06 19:51:45

Nicolas Welte writes:

>I don't have any programs yet, and I think to get any useful
>measurements from your logic analyzer it has to be supplied with a
>trigger signal from the software.

The triggering is fairly intelligent.  It matches on any pattern on any
subset of the inputs, and can also count how many times it has been through
a loop and only start on the 47th time through and things like that.

>But of course a logic analyzer has the big advantage of being able to
>monitor the whole address and data bus and maybe even the control
>signals at once, so you can directly see what memory access happens
>during each cycle.

It has somewhere around 40 channels, and can record up to 1024 states.
That's enough to watch every interesting signal for a couple of character
lines worth of time.  The only problem is that I have to type the results
manually into a computer - it's got an IEE488 interface, and I have nothing
that will talk to that.

John West
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