Thanks to Paul Gittings for leaving a comment with this cool FPGA digital oscilloscope that Jean P. Nicolle from FPGA 4 Fun developed.
“Let’s build a simple digital oscilloscope.
* Single channel 100MHz/100MSPS (100 mega-samples-per-second)
* RS-232 based (we’ll look into USB too)
* Inexpensive!
A simple digital oscilloscope recipe
Using parts from KNJN.com, here are the basic items of our recipe (prices accurate as of this writing, Feb 2007).
* Pluto FPGA board, with TXDI and cable ($39.95)
* Flash acquisition board ($29.95)
* BNC, standoffs, and connectors ($4.95 + $0.95 + $2.95)
That’s about $78.75 so far.”
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“Note that since we are using a 100MSPS Flash board, a good idea is to limit ourselves to signals below 10MHz”
🙁
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Any linux or OS X software for this?
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Sorry i dont quote understand, is it really mean same as analog 100MHz osciloscope capability? can it also be use as a spectrum analyzer?
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Just map out the serialized cycles in software, usb over rs for sure. Something easy perhaps? I am sure usb signaling currently reside quite high. Compared to what? Well eth0 runs quite hot and using wifi would see a neat little unit. But this unit definitely seems quite novel. Still not sure bout the parity used tho? maybe I will decide.
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sorry, “signals”