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by Robo_Pi
Wed Nov 18, 2020 8:28 am
Forum: General discussion
Topic: Help with Raspivid and 3.5" GPIO display
Replies: 2
Views: 123

Re: Help with Raspivid and 3.5" GPIO display

Thanks 6by9. That looks promising. I'll give it a shot tomorrow.
by Robo_Pi
Wed Nov 18, 2020 5:53 am
Forum: General discussion
Topic: Help with Raspivid and 3.5" GPIO display
Replies: 2
Views: 123

Help with Raspivid and 3.5" GPIO display

Not sure where to post this, so here's the question: I'm using a Raspberry Pi camera with Raspivid. This works well as long as I have my HDMI monitor attached to see the camera preview. But then I decided to move everything over to a Raspberry Pi Zero that uses a 3.5" LCD display. This display ...
by Robo_Pi
Fri Jul 10, 2020 5:58 pm
Forum: General discussion
Topic: FPGA Development Software for RPI 4?
Replies: 80
Views: 3663

Re: FPGA Development Software for RPI 4?

Thanks for the info Michael I wonder if you could take a look at the video and let me know if you understand what they are talking about? If so, this project may not be for you. Don't take me wrong. You are welcomed - but if you are new to this it is a long (probably frustrating) way before you will...
by Robo_Pi
Tue Jul 07, 2020 4:20 pm
Forum: General discussion
Topic: FPGA Development Software for RPI 4?
Replies: 80
Views: 3663

Re: FPGA Development Software for RPI 4?

I've been wanting to design an FPOA for years. So this is something that I've been thinking about for some time. I'm going to sign up for their PDK and see if I can make any sense of it. :D They mention "Primitive cell libraries and models for creating analog designs." No need to 'sign up...
by Robo_Pi
Tue Jul 07, 2020 4:12 pm
Forum: General discussion
Topic: FPGA Development Software for RPI 4?
Replies: 80
Views: 3663

Re: FPGA Development Software for RPI 4?

You should have said. There is always GHDL for simulating VHDL on Linux. https://ghdl.readthedocs.io/en/latest/about.html I tried it out many years ago, didn't get on with VHDL very well. Forgot all about it. $ sudo apt-get install ghdl Oh goodie! I like versatility. I'll give the ghdl a shot too n...
by Robo_Pi
Tue Jul 07, 2020 2:23 pm
Forum: General discussion
Topic: FPGA Development Software for RPI 4?
Replies: 80
Views: 3663

Re: FPGA Development Software for RPI 4?

This isn't strictly an 'RPi 4' question, is it? More an electronic one. Agreed. The original question of the thread was "FPGA Development Software for RPI 4?" Although what I really wanted was software that would run on the RPI 4 to actually configure and program a Cyclone II FPGA or a MA...
by Robo_Pi
Tue Jul 07, 2020 1:36 am
Forum: General discussion
Topic: FPGA Development Software for RPI 4?
Replies: 80
Views: 3663

Re: FPGA Development Software for RPI 4?

https://blog.degruyter.com/algorithms-suck-analog-computers-future/ Had an analog computer in my first car, Volvo 164TE. Worked in a company that made them for Combine Harvester grain harvesting efficiency monitors. Op amps and filter, programming was adjusting trim pots. I use PSoC microchips, sho...
by Robo_Pi
Mon Jul 06, 2020 7:57 pm
Forum: General discussion
Topic: FPGA Development Software for RPI 4?
Replies: 80
Views: 3663

Re: FPGA Development Software for RPI 4?

A 3-input perceptron is far more interesting as it can be represented as a 3D space. Learning how to draw 3D decision boundary planes is also a valuable tool. You can then visualize any 3D data set and discover the weights you need by drawing up the required 3d decision boundary plane to match that...
by Robo_Pi
Mon Jul 06, 2020 6:40 pm
Forum: General discussion
Topic: FPGA Development Software for RPI 4?
Replies: 80
Views: 3663

Re: FPGA Development Software for RPI 4?

You may have inspired me to actually get on and build the little opamp NN of my dreams! If you have an interest in this sort of thing I'd say go for it. Although, if I may, I would like to offer up a few things that I've discovered in my own journey. To begin with, I wouldn't jump into trying to bu...
by Robo_Pi
Mon Jul 06, 2020 3:32 pm
Forum: General discussion
Topic: FPGA Development Software for RPI 4?
Replies: 80
Views: 3663

Re: FPGA Development Software for RPI 4?

Can you explain how one of these OP amp based neurons might work? I understand an OP amp to be an analog device whose output is a linear function of the difference between its two inputs. That would make a very stupid two input neuron! Op-amps are far more versatile than that. They can also be comb...
by Robo_Pi
Mon Jul 06, 2020 5:04 am
Forum: General discussion
Topic: FPGA Development Software for RPI 4?
Replies: 80
Views: 3663

Re: FPGA Development Software for RPI 4?

Pretty sure there were Field Programmable Op-amp arrays. Very dusty memory. If you ever see a Field Programmable Op-amp array please post a link to it here. I had the idea for one about 10 years ago and I've searched everywhere to see if I could buy one. I couldn't find anything close to a Field Pr...
by Robo_Pi
Mon Jul 06, 2020 1:45 am
Forum: General discussion
Topic: FPGA Development Software for RPI 4?
Replies: 80
Views: 3663

Re: FPGA Development Software for RPI 4?

I think I have some more question, they might wait till I have read your post over again. But when I asked "how are you planning to set the weights?" I was not thinking of "how are you going to calculate or otherwise determine them". I was thinking physically how will you set th...
by Robo_Pi
Mon Jul 06, 2020 12:21 am
Forum: General discussion
Topic: FPGA Development Software for RPI 4?
Replies: 80
Views: 3663

Re: FPGA Development Software for RPI 4?

It's not clear to me you could build an analog NN to do that as fast as those dedicated digital devices do, and meet the low power consumption at the same time. Not to mention the cost and physical size constraints. Fortunately I'm not planning on going into competition with Apple or Google. :D I'm...
by Robo_Pi
Sun Jul 05, 2020 5:31 pm
Forum: General discussion
Topic: FPGA Development Software for RPI 4?
Replies: 80
Views: 3663

Re: FPGA Development Software for RPI 4?

Curious. Am I to understand you are wanting to build perceptons/neurons out of opamps and somehow control the weights of their inputs via the FPGA? Interesting idea. Can you say more about it? Where does the fitness function and the training happen? This can be complicated to explain, but I'll try....
by Robo_Pi
Sun Jul 05, 2020 3:20 pm
Forum: General discussion
Topic: FPGA Development Software for RPI 4?
Replies: 80
Views: 3663

Re: FPGA Development Software for RPI 4?

If you like to roll your own neural networks you might like this: "Neural Networks and Deep Learning" by Michael Nielsen : Yes, I've been studying the common approach to creating NN and deep learning. However, that method is actually a very small part of how NNs can be constructed and des...
by Robo_Pi
Sun Jul 05, 2020 6:09 am
Forum: General discussion
Topic: FPGA Development Software for RPI 4?
Replies: 80
Views: 3663

Re: FPGA Development Software for RPI 4?

iverilog is one of my all time favorite pieces of software. Small, fast, easy to use. So much more convenient that those vendor tools. It's an impressive piece of work. I too prefer lightweight software. I'll still be stuck with having to use Quartus when it comes to the actual pin assignments and ...
by Robo_Pi
Sun Jul 05, 2020 4:56 am
Forum: General discussion
Topic: FPGA Development Software for RPI 4?
Replies: 80
Views: 3663

Re: FPGA Development Software for RPI 4?

Do let us know how you get on. Success Report : I made a lot of progress tonight to be sure! The first thing I did was install the Verilog extension in Code-OSS. I didn't even know that existed. It's nice to have intellisense with auto completion when writing Verilog code. So that was a nice touch....
by Robo_Pi
Sat Jul 04, 2020 9:31 pm
Forum: General discussion
Topic: FPGA Development Software for RPI 4?
Replies: 80
Views: 3663

Re: FPGA Development Software for RPI 4?

It's not clear to me how a GPU can help much with tasks like compiling Verilog and all the synthesis and place and route etc. GPU's are really great at large regular tasks that can split up into chunks and run in parallel, like munching on huge array containing an image or doing 3D transforms on mi...
by Robo_Pi
Sat Jul 04, 2020 8:59 pm
Forum: General discussion
Topic: FPGA Development Software for RPI 4?
Replies: 80
Views: 3663

Re: FPGA Development Software for RPI 4?

I have a few Jetson Nano here. I'm not sure they would do any better than the Pi. Firstly you are limited to 4GB of RAM when you can get a Pi with 8GB. Secondly in my testing running normal 64 bit compiled code is 20% slower on the Jetson. The Jetson's GPU will not help here. Yes this is true, but ...
by Robo_Pi
Sat Jul 04, 2020 8:38 pm
Forum: General discussion
Topic: FPGA Development Software for RPI 4?
Replies: 80
Views: 3663

Re: FPGA Development Software for RPI 4?

Do let us know how you get on. Will do. Although it won't be anytime soon. I'm just trying to piece together the tools right now in between doing much needed remodeling work. :D Just FWIW, I'm working on a Linguistic AI project that I'm writing in Python using CODE-OSS on a Raspberry Pi. I'm also u...
by Robo_Pi
Sat Jul 04, 2020 8:22 pm
Forum: General discussion
Topic: FPGA Development Software for RPI 4?
Replies: 80
Views: 3663

Re: FPGA Development Software for RPI 4?

This might be doable. I never really thought of that. I could develop the Verilog code on the RPI 4 and then just copy it over to the Windows computer for programming onto the chip. In that scenario all of the heavy lifting, the place and route part, would still be done on the PC. So what advantage...
by Robo_Pi
Sat Jul 04, 2020 7:20 pm
Forum: General discussion
Topic: FPGA Development Software for RPI 4?
Replies: 80
Views: 3663

Re: FPGA Development Software for RPI 4?

It's nice to checkout code and hack on it wherever you are without needing to drag Quartus around with you. Besides, you are lining yourself up for a Quartus free world of using Open Source tools. Which is nice. Absolutely! I totally agree. Any progress toward this end is very welcome. I'm totally ...
by Robo_Pi
Sat Jul 04, 2020 4:35 pm
Forum: General discussion
Topic: FPGA Development Software for RPI 4?
Replies: 80
Views: 3663

Re: FPGA Development Software for RPI 4?

Do you really need to stick with Cyclone? Yes, I have about 25 of these boards, so I hardly want to spend money on new boards when these will do what I want. If you just want to hack Verliog and simulate it whilst away from your PC there is: Icarus Verilog: http://iverilog.icarus.com/ and the Veril...
by Robo_Pi
Sat Jul 04, 2020 3:08 pm
Forum: General discussion
Topic: FPGA Development Software for RPI 4?
Replies: 80
Views: 3663

FPGA Development Software for RPI 4?

I'm currently programming a Cyclone II FPGA chip using Quartus II software on a Windows PC. I would like to move over to a Raspberry Pi 4 to continue to do this. It's my understanding that while Quartus II is available for Linux it's not compatible with the ARM64 CPU. I would love to run Quartus II ...
by Robo_Pi
Thu Mar 29, 2018 9:42 pm
Forum: Troubleshooting
Topic: Can't get my Pi to write a file to Windows
Replies: 22
Views: 3005

Re: Can't get my Pi to write a file to Windows

Samba (or CIFs) CAN write to a shared folder on a Windows PC. I've done that for ages from a Linux Mint PC. It "just worked" so I can't say anything about how you need to configure on a RPi. You LUCKY DOG! I wish it would "just work" for me. :D By the way, I also have Linux Lite...

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