You may look in to http://xoscope.sourceforge.net/  and
 http://www.bitscope.com/

Francisco


Russell McMahon wrote:

>>I am just a home hobbyist (no corporate $$ to help out).
>>
>>I have a background in software and have just started to experiment with
>>microcontroller application development.
>>
>>Do people consider an oscilloscope a "must-have"? A logic probe just
>>
>doesn't
>
>>cut-it for rapidly changing pins. Does simulation using MPLAB completley
>>eliminate the need for real circuit checking? (I'd be surprised).
>>
>
>As lots of people are about to tell you, an oscilloscope is the most
>indispensable iinstrument in the world. By dint of converting time domain
>signals into eye-domain :-) signales it lets your brain input vast
>quantities of otherwise unavailable information.
>
>If you are going to deal with analog signals
>
>Even if you are going to deal almost only with purely digital signals the
>scope will be very useful.
>
>If you deal with multiple digital channels the scope will be less useful
>mainly because it is less than adequate for the task which is better suited
>to a logic analyser BUT will still be far far better than alternatives.
>
>Ideally you want dual trace and delayed timebase and as many MHz as possible
>BUT a miniumum of a single channel with a good triggered sweep will be very
>very useful.
>At the very very bottom lvele you get old nasty single beam scopes without
>proper triggering. These are extremely frustrating and will put you off
>scopes.
>
>Even a 5 MHz scope is useful for many things but 10 MHz is better, and
>higher still better again.
>A scope will display signals above its rated bandwidth at rapidly decreasing
>amplitude but ideally you want a bandwidth at least as high as the maximum
>pulse speed you want to observe. Thus you will still see a 20 MHz / 50 nS
>single pulse  on a 20 MHz scope even though you are at (or theoretically
>beyond) the limits of its ability.
>
>If you can afford digital storage you will not regret having it but it is
>not an essential to start with.
>
>An oscilloscope is liable to be your most useful tool.
>
>
>
>regards
>
>
>
>                Russell McMahon
>
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>>I have read very interesting .pdf from Tektronix which really pushes $$$
>>DPOs, but I do not have a multi $k budget for my (new) hobby.
>>
>>Can anyone recommend an entry-level 'scope for use in developing PIC
>>circuits/applications.
>>
>>My budget is not without limits, but I want to get something that will be
>>useful. Is spending, say, < $500 a fruitless exercise?
>>
>>TIA.
>>
>>--
>>http://www.piclist.com hint: The PICList is archived three different
>>ways.  See http://www.piclist.com/#archives for details.
>>
>>
>>
>
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