Any Interesting Projects For Zynq

[rstofer]

Has anybody found something interesting to do with a Zynq board?  I'm not talking about building an oscilloscope but rather something in the hobby arena.  I guess I'm looking for an excuse to buy a board and learn something new but the project should be interesting.

The boards are too expensive to just 'blink an LED'.

My interests are all over the map so 'interesting' covers a lot of territory.

[agehall]

I'm planning on driving my LED cube project with one of my Zynq-boards to get the refresh rate I want.

They are a bit pricey but if you stick to the low-end like MyIR boards, the price is acceptable compared to what you get imho.

[RoGeorge]

Maybe you want an ADALM PLUTO board, a 6GHz Rx/Tx SDR with dual core Zynq 7010, DRAM, USB host, can run Linux, has Matlab support, GNU Radio support, made by Analog Devices, for about $70, or so.

If you get bored with Zynq, can dive into SDR, or embedded Linux, or whatever.  AD made an SDR book based on ADALM-PLUTO.

https://www.eevblog.com/forum/rf-microwave/adalm-pluto-sdr/
https://www.eevblog.com/forum/rf-microwave/adalm-pluto-as-vhfuhf-spectrum-analyzer-and-a-tracking-generator/

[rstofer]

Maybe you want an ADALM PLUTO board, a 6GHz Rx/Tx SDR with dual core Zynq 7010, DRAM, USB host, can run Linux, has Matlab support, GNU Radio support, made by Analog Devices, for about $70, or so.

Anything with MATLAB support is interesting!  SDR, not so much...

[RoGeorge]

Not only Matlab, I see now it has Simulink support, too.   

https://www.mathworks.com/videos/waveform-generation-using-mathworks-sdr-1554978351616.html
https://www.mathworks.com/hardware-support/adalm-pluto-radio.html

[JohnnyBerg]

You could try to implement some kind of network stack, for example AES67 over IP.

Or build a 100 tier FIR filter, to equalize a speaker to your favorite response curve.

We did both things were I used to work.

[rstofer]

I think I'm more of a digital kind of guy.  I have less than zero interest in music and only slightly more, but still less than zero, in radio.  But I can sure see how that Pluto gadget would be just the ticket for analog folks, especially students.  I always liked the AD Blackfin that I was playing with some years back; AD makes some amazing devices.  Heck, the entire Analog Discovery 2 project is based on Analog Devices except for the FPGA from Xilinx and it's targeted directly at students.

I do enjoy using Simulink to model the analog computer solution to various differential equations.  Of course, I also like patching real analog computers.

I'll have to think about SDR.  There must be something I can do with it without going down the ham radio path.  I so dislike tests...  Maybe it would be fun to decode BLE.

[colorado.rob]

I have a couple of Pynq-Z2 boards.  I've been toying with the idea of doing high-speed data transfer over the HDMI ports.  It has both input and output, so should be able to do ~3Gbps bidirectional.

Here's a great place for inspiration with Zynq: http://www.pynq.io/examples -- you can do any of these without relying on Pynq/Python if you'd rather implement it from the ground up.

[rstofer]

That pynq site is quite good!

[0culus]

For the record, the exams are not difficult at all till Extra, and really that exam isn't going to be like a uni exam in terms of difficulty. If you are even the slightest bit knowledgeable in electronics passing shouldn't be a problem. The hardest part is the legal stuff. That you just have to memorize. In return you get considerable operating freedom vs. other radio services, and get away from the power limits of the ISM bands. And you can build your own stuff. And that is the bigger draw for me vs. ragchewing with people or DXing on HF.

[rstofer]

When I was a teenager and Heathkit was still in business, I was sort of interested in Ham Radio.  I had a decent receiver, a Super Regenerative Receiver built from plans in the ARRL Handbook (circa '55) but, alas, my interest fell away fairly soon when I stumbled over code.  I suppose if I had kept at it I would have eventually learned how to do it, everybody else had, but my attention span is far too short.

Now that code is a dead issue I suspect the process is much easier.  But now I don't really want to talk to anybody.  Forums are the limit of my social activities.

I sure miss Heathkit!  I built a lot of their equipment and had a great learning experience doing it.  I think I was 10 or 11 when I first started probably with that 8W amplifier kit.  Fun times for a young kid.

[0culus]

Yeah, it truly is a shame. And the kits turn out rather nice if you assemble them carefully and make everything neat. My dad built a Heathkit oscilloscope during summer break from uni. Alas, it is long gone.

There's honestly no reason why you even need to talk with people. I'm not a member of any clubs, though I do talk some on 2M and 70CM locally, but, my primary interest is building things (I especially want to work up in the microwave bands, though probably stop at the low end of Ka band for cost considerations), and having the license gives you tons more freedom to work outside ISM bands and be able to legally construct your own stuff. 

[AndreZheng]

 
Please  take a look at this QMTECH Zynq XC7Z010 starter kit. Aliexpress sale price is only $55.9. https://www.aliexpress.com/item/4000323573953.html?spm=2114.12010612.8148356.2.2d6a7d2ay6Z3KV

[BrianHG]

Has anybody found something interesting to do with a Zynq board?  I'm not talking about building an oscilloscope but rather something in the hobby arena.  I guess I'm looking for an excuse to buy a board and learn something new but the project should be interesting.

The boards are too expensive to just 'blink an LED'.

My interests are all over the map so 'interesting' covers a lot of territory.

Which one?

[jhpadjustable]

Blink several hundred of them.  Something along the lines of a super-low-res DVI monitor that downscales a turn-of-the-century screen resolution to the size of a modest LED sign.

There are ways to do ham radio without talking to anyone.

[radioactive]

If you get bored with Zynq, can dive into SDR, or embedded Linux, or whatever.  AD made an SDR book based on ADALM-PLUTO.

I purchased a hardcover of that book.  AD is probably my favorite mega company.  They are the rulers of the RF domain now.  Also,  Travis Collins, Robin Getz, et. al.  did a great job on the book. 

I did some experiments with the Pluto SDR after I left my last job.  You can check them out here:  https://github.com/tvelliott/charon

I also purchased an Arty Z7 board at one point.  I did discover one interesting thing while playing with that board.  Linux (even on desktop) does not support full 1 GBPS tcp transfers unless you specifically over-ride the default configurations.  I found this after I had implemented iperf3 in stand-alone configuration on one of the Zynq cores.  My desktop could not get above some level to the Zynq board... can't remember what the limit was  (maybe 500 Mbps?).  Anyway,  after I changed the configuration on my desktop to support the higher transfer rates,  I got well over 900 Mbps,  can't remember now, but might have been pretty close to 1000 Mbps.   I've been using Linux since '97.  I didn't figure that limit out until a couple of years ago.

[OwO]

PlutoSDR is a nice idea but the implementation is very limiting: there is no sd card slot or any way to add more storage, which means ordinary linux distros can't be run on it. There is also only half a channel of DDR3 memory which means half the memory bandwidth and only 500MB ram. The RF output is very weak and amplifying it to useful levels require a lot of gain, which means potential for oscillation because the Pluto is not shielded and the transmit antenna could couple signals back. In the end I decided to spend the R&D effort on a custom design that fixes most of these issues and adds RF frontends: https://github.com/gabriel-tenma-white/sdr5
It's still experimental and not fully tested though (other projects taking up my time) so don't build using this design yet.

Lastly, the AD936x used in the Pluto has extremely bad linearity (-18dBm IIP3), but unfortunately I could not find good alternatives yet. Only possible alternative is the Lime but it's unobtainium (AD9363 can be sourced at about $10 @ 1pcs, LMS7002M is $110 at any quantity).

[BrianHG]

Since an XY plotting scope is out, how about a complete Atari 8 bit computer system or Commodore 64/128 which can operate at 500x normal speed with upsampled VGA/DVI output.

Or maybe, an automatic gamepad joystick controller which takes in the video output from your gaming system, and through the visual, sends controls to your hacked open gamepad to perform a simple auto aim and fire for an existing first person shooter game.

Or maybe, a real time camera gimbal controller for a net or security camera which will always target and center in on the face of the closest person in view based on the video received by the camera.

What about a realtime image enhancer.

Maybe a 3 dimensional FFT statistical based background noise & hiss removal for old analog audio recordings.

Need more ideas?

[RoGeorge]

just 'blink an LED'.

Technically speaking, blinking a LED with an FPGA is not trivial.  My very first VHDL code was just a wire inside the FPGA, between an input and an output pin. 

I still remember the thrill when I pushed the button connected at one pin, and the LED at the other pin light up.  It felt so WOW! 

[FlyingDutch]

Hello,

maybe it is off-topic, but I also has some difficulties about to how to use "Zybo" board in interesting project. I purchased "ZyboZynq-7000" board:

https://store.digilentinc.com/zybo-zynq-7000-arm-fpga-soc-trainer-board/

about one and half years ago. I planned to use it with "Computer Vision" projects - there are many good tutorials on network, but this version of Zybo board is not equiped with camera interface (the newer ones have MIPI camera intertfaces). I didn't find any good example how to connect camera (USB or MIPI interface) to my version of Zybo board. Maybe someone of you know example project about how to connect modern camera to my board. I think  I can handle with some CV algorithms just if I can handle to gather data from camera.

The second field of my intrest is AI (ANN). I have some expierience with "Keras" framework (framework written in Python for building "Artificial Neural Network". I try with succes deploy simple ANN to ARM- Cortex-M4 and ARM Cortex-M7 (STM32F4 and F7 MCUs).  I don't know how to use ANN's with Zybo board, maybe some of you know good tutorials in this subject?

Thanks in advance and Regards

[artag]

Maybe you want an ADALM PLUTO board, a 6GHz Rx/Tx SDR with dual core Zynq 7010, DRAM, USB host, can run Linux, has Matlab support, GNU Radio support, made by Analog Devices, for about $70, or so.

I'm seeing prices around the $2-300 mark. Where are the $70 ones ?

[OwO]

https://www.mouser.com/ProductDetail/Analog-Devices/ADALM-PLUTO
They've raised the prices again 
Also is it really a coincidence that it's priced exactly the same on mouser and digikey?

You can actually build a PlutoSDR yourself for around $90...
$50 PCB + PCBA (JLC)
$10 AD9363
$15 XC7Z010-CLG400
$8 1GB DDR3 (2 chips of 512MB each)
$5 crystals, baluns, and other passives
Even cheaper if you amortize the PCB/PCBA cost over a few units.
That's why I didn't just buy a pluto in the end (actually bigger reason is the Pluto as it is is unfit for my purposes because of the issues I mentioned a few posts ago). In the future I may need to deploy tens or hundreds of SDR stations in the field and the design work will pay off.

[RoGeorge]

Maybe you want an ADALM PLUTO board, a 6GHz Rx/Tx SDR with dual core Zynq 7010, DRAM, USB host, can run Linux, has Matlab support, GNU Radio support, made by Analog Devices, for about $70, or so.

I'm seeing prices around the $2-300 mark. Where are the $70 ones ?

It seems meanwhile the price has increased, didn't know that, sorry.

I payed and back ordered mine from Mouser Europe.  Found the online invoice 82 Eur or $95, plus VAT, so 97Eur/$113 total.

Not sure if it was some kind of promotion back then, but anyway it was cheaper than if it were to order the same thing from Analog Devices website.  That was more than a year ago, and back then ADALM Pluto SDR was selling so well that the stocks were usually zero at all times, and when once a few months they replenish, a few hundreds units use to sell in less than a week.

I see now Mouser has about 500 pcs on stock, except the price is x1.7 times bigger.

[laugensalm]

I didn't find any good example how to connect camera (USB or MIPI interface) to my version of Zybo board. Maybe someone of you know example project about how to connect modern camera to my board. I think  I can handle with some CV algorithms just if I can handle to gather data from camera.

To be honest, if you really want to focus on the imaging algorithms, the Z*-Boards might turn out to be somewhat over-engineered for that purpose. You need to get many things under control to use the full package:

• When using linux: v4l2 kernel driver layers
• MIPI: I'd stay away of this and use classic parallel video (which you could wire to the PMOD pins)
• AXI-Interfacing and the full device tree driver dance again

However with an included board supply package you should be able to get images from a normal USB camera supporting UVC (I didn't have troubles when I tried a few years back). But the tricky thing then is to route that data into the FPGA for preprocessing, otherwise you could as well just take any off the shelf ARM SoC. This can get more complex and quirky than implementing a Soft-processor for such purposes.

[rstofer]

Has anybody found something interesting to do with a Zynq board?  I'm not talking about building an oscilloscope but rather something in the hobby arena.  I guess I'm looking for an excuse to buy a board and learn something new but the project should be interesting.

The boards are too expensive to just 'blink an LED'.

My interests are all over the map so 'interesting' covers a lot of territory.

Which one?

I suppose an answer would be a function of cost.  Really, cost isn't much of an issue so I really don't care which board.  I'm looking for something with substance.  I already know how to build complex systems in VHDL.  By no means am I an expert but I have been playing with them for 15 years or so, back to the Spartan II.

I don't know what kind of project.  I have no interest in RF or radio or much in the way of signal processing (hated that class).  I do like computer systems (but not just another CPU), maybe something like computer vision but something where the ARM cores actually need the FPGA fabric for something.

I have been harassing Google for videos; something will come up.  There simply must be an application for the Zynq that is interesting and requires both ARM code and VHDL.  Otherwise, why build the chip?