[chbot] USB silly-scope

[Richard Jones]

Thanks Hanno,

This sounds like a very interesting project to add to my winter list, it 
might be interesting to add the hardware to the Xoscope project: 
http://xoscope.sourceforge.net/

Which A->D did you have in mind and what tricks to get it to perform at 
40MHz into the propeller memory? I guess you would be limited to rather 
less than 512 samples?

Richard

Hanno Sander wrote:
> Hi,
> My program "ViewPort" lets you use the Propeller as a 40Mhz 
> Oscilloscope when used with a $5US Analog Digital Converter.  If more 
> were interested I might be able to put together a  "daugherboard kit" 
> - my current solution involves a lot of fine soldering.
>
> ViewPort has most of the features of the competing usb scopes: 
> triggers, cursors, timescales, save to csv, spectrum analyzer, logic 
> state analyzer and much more.  It's worked very well for me and let's 
> me measure anything from low speed sensors to NTSC video...
>
> http://mydancebot.com/viewport
> Hanno 
>
>
> On Wed, Feb 20, 2008 at 11:32 PM, Carl Ranson 
> <carl.ranson at paradise.net.nz <mailto:carl.ranson at paradise.net.nz>> wrote:
>
>
>     Mine is a stingray from dontronics across the ditch.
>     http://www.dontronics-shop.com/USB-CROs-Analyzers-p-1-c-312.html
>
>     For what I need, its been good. Fairly simple to use but not rated for
>     really high speed signals.
>     I note that the dual channel one is only a smidge more now though.
>     Carl
>
>     Chris Hellyar wrote:
>
>     >Hi-ho,
>     >
>     >I'm looking for a portable alternative to my faithful bench top
>     scope,
>     >and was wondering what (if anything) folks are using for a USB
>     scope?  2
>     >channel 10Mhz 8 bit would do 99% of what I want.
>     >
>     >I found all sorts of stuff on the interweb, some of which seem vastly
>     >over-priced, some over-spec'd, and not a lot locally, so I'm
>     looking for
>     >any recommendations or gear to avoid...
>     >
>     >
>     >Cheers, Me.
>     >
>     >
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