Re: Logic Analyzer Vs. Oscilloscope



Himanshu Chauhan wrote:
(snip)
Other folks pretty well outlined some of the differences between the two, so I
will not add to that.

If you putter with digital stuff very much you will probably want a logic
analyzer at some point. If you have the money to purchase a commercial unit,
fine. If not, consider building one after you've learned more about micros. I

Well Michael, Ain't it a problem of Chicken or Egg. To build a logic
analyzer using
a uC at home, don't we need LA? Can you please throw a light on this?

Warm regards
--Himanshu


It could be. Might not be. Depends on several things, e.g. how
extensive/expansive your design is, how *good* your design and proto are when
you power up the proto for the first time. Also how many wiring mistakes you
make and what kind of mistakes they are. Stuff like that.

The "analyzer" I described last time is very simple: just 1 channel. The uC
simply timestamps each high/low transition of that channel and saves to SRAM. I
made three wiring errors, and finding them using an ohmmeter cost me about 4
hours. Having a proper LA would not have cut any time off that. What *would*
have made things a whole lot easier is using several colors of wire when
building, instead of just the YELLOW I had!

--
Michael
.

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    (comp.dsp)