Electronics > Projects, Designs, and Technical Stuff
Oscilloscope ASIC Kickstarter instead of Open scope.
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iMo:
Back to the topic before Dave closes this thread :)

13y back you would hardly expect you may get 16ch logic analyzer with 200MHz sampling rate for $50 incl shipping. I was the early adopter of the OLS - one of my best investments - after the hw was created (and still sold afaik) it took the community 1-2y to fine tune and enhance the fw in the fpga and mcu, and another ~5y of rather slowish development of the client app. Now you have a capable LA handy.

If somebody produced an open sourced hw on say 10x5cm 4 layer pcb with 2ch 1-2Gs/s, 8bit res, FPGA+256MB ram and an usb connectivity for say $50 incl shipping, I would bet the community will do a steep learning curve and in 1-2y you would have an useful instrument handy. GUI in the PC/tablet.
donotdespisethesnake:

--- Quote from: imo on January 11, 2020, 09:25:06 am ---If somebody produced an open sourced hw on say 10x5cm 4 layer pcb with 2ch 1-2Gs/s, 8bit res, FPGA+256MB ram and an usb connectivity for say $50 incl shipping, I would bet the community will do a steep learning curve and in 1-2y you would have an useful instrument handy. GUI in the PC/tablet.

--- End quote ---

The "Open Bench Logic Sniffer" is not actually Open Source, despite the description. It has max sampling rate of 200MHz. There is not going to be a $50 incl shipping board meeting the specs you describe, that's just a dream.

Talking of Dave, the OP should ask him to run through the proposal and give his opinion.
ogden:

--- Quote from: unitedatoms on January 11, 2020, 07:58:43 am ---Well. In my world, there is no NEW semiconductor development happening in anywhere except USA or perhaps South Korea. Nothing. May be all those silicon developers in Europe are attending their jobs, work, come back home. And no effect is felt anywhere.

--- End quote ---
Ever heard of ARM?
aheid:

--- Quote from: imo on January 11, 2020, 09:25:06 am ---If somebody produced an open sourced hw on say 10x5cm 4 layer pcb with 2ch 1-2Gs/s, 8bit res, FPGA+256MB ram and an usb connectivity for say $50 incl shipping, I would bet the community will do a steep learning curve and in 1-2y you would have an useful instrument handy. GUI in the PC/tablet.

--- End quote ---

What kind of ADC would you put in that thing? Cheapest name-brands I can find blows the $50 budget for just the ADC alone, for example the HMCAD1511 used in the Siglent SDS-1104x scope[1] is $49 per 100 qty and that cuts down to 500 Msps when running two channels. Then again, I'm just a n00b so curious what else is out there.

edit: Just for fun I checked the FPGA used in that scope[2], it's about $120 in low quantities[3]. So just between the ADCs and FPGA the BOM cost is half the price of the scope. Though if post-processing and display etc is handled elsewhere, I assume a much cheaper FPGA can be used.

[1]: https://youtu.be/Kay4Jk2DHuE?t=532
[2]: https://github.com/360nosc0pe/fpga/blob/master/projects/sds1104xe/create_project.tcl#L20
[3]: https://www.digikey.com/product-detail/en/xilinx-inc/XC7Z020-1CLG484C/122-1850-ND/3925759
unitedatoms:

--- Quote from: ogden on January 11, 2020, 12:28:10 pm ---
--- Quote from: unitedatoms on January 11, 2020, 07:58:43 am ---Well. In my world, there is no NEW semiconductor development happening in anywhere except USA or perhaps South Korea. Nothing. May be all those silicon developers in Europe are attending their jobs, work, come back home. And no effect is felt anywhere.

--- End quote ---
Ever heard of ARM?

--- End quote ---

ARM is not a semiconductor company, also its Japanese.

My point is that for certain industries there is certain geographies. I see someone (lets make it exact, some German person) out of place, then it causes a dissonance. I start to re-evaluate what do I know about this kind of relevance. Say if someone in 1960s in Liverpool UK nonchalantly suggests to roll a music band, I do not see a dissonance, because it is their local culture, the industry, that's what they do. When I see a German pushing for IP project I can not connect few dots, there is some dissonance. It is not how such person is supposed to look like. There is some underlying lie there. And I can not put a finger on it and start throwing random pokes. Was is that fact that credentials are based on fact that his father is Queen of England who bakes semiconductors every Friday, or some arithmetical quantities of dollars in high thousands or millions even. Something does not look natural. And I have to wake up and try to fugure out what place or time or person I did expect to be in such position.
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