If you want to see what you can do with a 18F452 ........


http://www.counterparts.ca/Velleman_HPS10_PersonalScope.htm


Tim

-----Original Message-----
From: pic microcontroller discussion list
[mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Bob Blick
Sent: 19 May 2003 11:51
To: PICLIST@MITVMA.MIT.EDU
Subject: Re: [EE]: Building a PC-based oscilloscope...


Kyrre Aalerud said:

> Problem is transferring to PC takes time, so unless I did this in USB2.0
> I'd have to capture, then send all data and wait for trigger again.

Are you also considering what it takes to display this data realtime? Are
you an experienced DirectX programmer?

Otherwise you'll be stuck with a fancy "datalogger".

Input preamps are another thing you need to be pretty experienced at in
order to build something decent.

I realize I sound like a wet blanket, but there's a reason why
oscilloscopes are priced the way they are. It costs money to make a good
one.

At the very least, you should buy a used analog oscilloscope and use the
frontend and trigger sections. Then you only have the digital and software
challenges.

Cheerful regards,

Bob

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http://www.piclist.com hint: The PICList is archived three different
ways.  See http://www.piclist.com/#archives for details.