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by TheMindVirus
Sun Oct 04, 2020 7:31 pm
Forum: Off topic discussion
Topic: 4-LOM Card
Replies: 0
Views: 647

4-LOM Card

I was searching the Internet last night and I found this: https://hackaday.com/2020/10/03/faster-desktop-ethernet-with-server-network-adapters/ (PCIe to LOM bridge, hear me out...) Fans of Star Wars may notice some similarity between this name and a much loved droid called "4-LOM": https:/...
by TheMindVirus
Fri Sep 25, 2020 5:27 pm
Forum: General discussion
Topic: Can a Raspberry Pi be a HAT for itself?
Replies: 33
Views: 1733

Re: Can a Raspberry Pi be a HAT for itself?

I've just come up with an alternative answer to my own question, which involves JTAG. I've seen several articles about how to use the JTAG GPIO pins with OpenOCD to debug other devices (e.g. nRF52). https://medium.com/@ly.lee/openocd-on-raspberry-pi-better-with-swd-on-spi-7dea9caeb590 I've seen fewe...
by TheMindVirus
Wed Sep 16, 2020 4:23 pm
Forum: General discussion
Topic: Raspberry Pi Diagnostics - Serial Monitor Utility
Replies: 21
Views: 1013

Re: Raspberry Pi Diagnostics - Serial Monitor Utility

Just updated to v0.3 to embed the fonts (and wrote the code to load a font into memory). It's bad that Visual Studio doesn't have this built-in as a feature and hasn't had it changed for 10 years. It is also disgraceful to future generations that you should reserve product names like that. I find it...
by TheMindVirus
Wed Sep 16, 2020 7:29 am
Forum: General discussion
Topic: Raspberry Pi Diagnostics - Serial Monitor Utility
Replies: 21
Views: 1013

Raspberry Pi Diagnostics - Serial Monitor Utility

I have just written a piece of software I like to call "Raspberry Pi Diagnostics" or "RPiDiag.exe". It is a classic Serial Monitor written in C# .NETv4 Windows Forms for Any Supported CPU. You can download the source code for it here: https://github.com/TheMindVirus/rpidiag I wou...
by TheMindVirus
Tue Sep 15, 2020 3:28 pm
Forum: Off topic discussion
Topic: New Models Codename M4 and SD4
Replies: 8
Views: 1107

New Models Codename M4 and SD4

I've got some new blueprints for you to ruthlessly criticise. M4 & SD4 Blueprint.jpg Ideally, I'd like to buy one card with 1 module at a time (leaning towards SD4 "long SD cards" for compute). The ultimate goal would be to have 6 cards 24 modules in an ATX case with a 24-port Netw...
by TheMindVirus
Sat Jul 18, 2020 9:58 pm
Forum: General discussion
Topic: I want to Use a raspberry as a bridge, a host, or an access point, or do I?
Replies: 23
Views: 1143

Re: what am i trying to do?

Bucket you want to turn your Raspberry Pi into a 4G Wi-Fi Router while still being able to access file sharing on your phone. It really depends on the phone and it's not a simple task, but I have done it before and it is possible using USB-C and a USB Ethernet Adapter. What would make everything si...
by TheMindVirus
Sat Jul 18, 2020 4:56 pm
Forum: General discussion
Topic: Pi Zero W transfer video
Replies: 5
Views: 286

Re: Pi Zero W transfer video

thagrol wrote:Does pyudev run on Windows?
Give it a few years, who knows... -_(\

The pyudev script is intended for the Pi Zero W instead of the Windows Machine.
The Windows equivalent is essentially the same, but the function calls map to pywin32 instead of pyudev.
by TheMindVirus
Sat Jul 18, 2020 12:43 pm
Forum: General discussion
Topic: Pi Zero W transfer video
Replies: 5
Views: 286

Re: Pi Zero W transfer video

Python's pyudev might be useful for this. It uses the udev event system from Linux. I've used it to make a continuously running script that checks for a USB Storage Device named "USB_DISK", performs a dummy action (prints "Device Connected") and unmounts it when a dummy transfer ...
by TheMindVirus
Sat Jul 18, 2020 2:26 am
Forum: General discussion
Topic: RGB LED Push-Encoder pHAT Concept (with SparkFun)
Replies: 0
Views: 115

RGB LED Push-Encoder pHAT Concept (with SparkFun)

I've just designed a Raspberry Pi HAT that I would like to be made into a product as a collaboration with SparkFun and Atmel/Arduino. More info available here: https://github.com/TheMindVirus/encoderphat Essentially, it's 3x SparkFun RGB LED Push Encoders powered by 3x Atmel ATMEGA328P-MU QFN32. Th...
by TheMindVirus
Thu Jul 16, 2020 6:08 pm
Forum: General discussion
Topic: OBS Studio on Raspberry Pi 4
Replies: 10
Views: 18623

Re: OBS Studio on Raspberry Pi 4

So I have been interested in this since I got my 8gb module. There is support for the codec according to "https://www.raspberrypi.org/documentati ... /README.md". Am I missing something about compatibility or do I have to write something new to access the registers? I've been looking into...
by TheMindVirus
Thu Jul 16, 2020 1:42 pm
Forum: General discussion
Topic: Chromium GPU working with 2020-05-27?
Replies: 27
Views: 1677

Re: Chromium GPU working with 2020-05-27?

One thing I noticed about chromium is that there seem to be 2 different versions. One is slow and has the old internet icon in the taskbar but still somehow opens a version of chromium. The other is extremely fast and reliable and all I had to do to get it working was remove the old internet Deskto...
by TheMindVirus
Sun Jul 12, 2020 9:06 pm
Forum: General discussion
Topic: HyperPixel4 Syslog Monitor for Diagnostics
Replies: 0
Views: 162

HyperPixel4 Syslog Monitor for Diagnostics

Hi again, just to say I completed what I set out to do in installing a Raspberry Pi in my desktop machine for diagnostics and general use. In this project I used a HyperPixel4 attached to a Raspberry Pi Zero (no WiFi) via a 40-pin header I soldered myself. The Pi is connected only by a Micro-USB ca...
by TheMindVirus
Sun Jul 05, 2020 10:39 pm
Forum: General discussion
Topic: Raspberry Pi 4 8GB GPU Memory Split
Replies: 21
Views: 4626

Re: Raspberry Pi 4 8GB GPU Memory Split

None of which is related in any way with the topic of this thread. Even the bits that are vaguely correct I'm not sure what planet some of us are on but I think it's absolutely related to the topic. It's a demonstration of the type of memory-intensive workload that some Linux ARM apps demand otherw...
by TheMindVirus
Sat Jul 04, 2020 12:57 pm
Forum: General discussion
Topic: Raspberry Pi 4 8GB GPU Memory Split
Replies: 21
Views: 4626

Re: Raspberry Pi 4 8GB GPU Memory Split

So it begs the question, on a scalable system, why even have legacy restrictive settings like gpu_mem on the standard image in the first place? It would be part of the allocation procedure to make sure larger address spaces translate to < 4GB. (By PCIe I meant it is present in x86 systems. I wasn't...
by TheMindVirus
Sat Jul 04, 2020 12:23 am
Forum: General discussion
Topic: Raspberry Pi 4 8GB GPU Memory Split
Replies: 21
Views: 4626

Re: Raspberry Pi 4 8GB GPU Memory Split

I'm assuming this limitation is one of firmware as this kind of allocation is theoretically possible and already works on x86 systems to share large portions of system memory with PCIe-connected GPU's. Since they can access the memory directly, the CPU is not involved in any framebuffer copy operati...
by TheMindVirus
Fri Jul 03, 2020 11:24 pm
Forum: General discussion
Topic: Raspberry Pi 4 8GB GPU Memory Split
Replies: 21
Views: 4626

Raspberry Pi 4 8GB GPU Memory Split

Something to try for anyone willing to experiment with their Raspberry Pi 4 8GB Model (I have the 4GB Model): What happens when you allocate 4096M to the GPU in raspi-config's GPU Memory Split option? (or gpu_mem=4096 in /boot/config.txt) WARNING: Hopefully this doesn't brick the Pi (in which case y...
by TheMindVirus
Sat Jun 20, 2020 12:50 am
Forum: Off topic discussion
Topic: PiM/PiN M.2 Multi-compute Concept
Replies: 47
Views: 4616

Re: PiM/PiN M.2 Multi-compute Concept

So just a preliminary block diagram at the moment, I'll see about revising it after the release of the CM4. For now I'm assuming that Compute Cards (and possibly even GPU's) will follow NVMe Storage Devices in shape, connector and firmware. BRAMBLE-3.jpg With all the labels in the cyan box, this is ...
by TheMindVirus
Thu Jun 18, 2020 5:00 pm
Forum: Off topic discussion
Topic: PiM/PiN M.2 Multi-compute Concept
Replies: 47
Views: 4616

Re: PiM/PiN M.2 Multi-compute Concept

The OP is putting forth his "inspiration" and--so far--shows no intention of using his own perspiration. I suggest that the next time he makes a proposal, before posting, he should actually *build* one in order to show that it can actually be "reduced to practice". If that were ...
by TheMindVirus
Wed Jun 17, 2020 12:23 pm
Forum: Off topic discussion
Topic: PiM/PiN M.2 Multi-compute Concept
Replies: 47
Views: 4616

Re: PiM/PiN M.2 Multi-compute Concept

So if I said the M.2 cards were called JET's and it had either a ZYNQ or a Lattice on board, would you be more interested? Boards with 1x M.2 slot already work with Wi-Fi adapters with customisable firmware, Storage devices and even the Sipeed M1 AI card. ZYNQ is a very capable ARM host and Lattice ...
by TheMindVirus
Tue Jun 16, 2020 11:35 pm
Forum: Off topic discussion
Topic: PiM/PiN M.2 Multi-compute Concept
Replies: 47
Views: 4616

Re: PiM/PiN M.2 Multi-compute Concept

The main problem the M/N/D series solves revolves around hardware/software forward/backward compatibility. It also makes an attempt to stick to one kind of cable for every purpose for simplicity and resourcefulness. Take Windows for example: it can now run on x86, x64, ARM or ARM64. Many other archi...
by TheMindVirus
Tue Jun 16, 2020 5:25 pm
Forum: Off topic discussion
Topic: PiM/PiN M.2 Multi-compute Concept
Replies: 47
Views: 4616

PiM/PiN M.2 Multi-compute Concept

I've had another idea for a concept that I'd like to share with the community (along the same lines of Raspberry Pi as a Card). I know what you're thinking, "Oh no, it's another concept for a next generation Raspberry Pi, is it going to keep changing?" To clarify: The aim for this topic is...
by TheMindVirus
Mon Jun 08, 2020 11:18 pm
Forum: Off topic discussion
Topic: SpaceX Crew Dragon Launch using 3 Touchscreens
Replies: 11
Views: 1927

Re: SpaceX Crew Dragon Launch using 3 Touchscreens

Anyone know what they are using for computers, three Tesla autopilots boards? It seems to be a set of NVidia Tegra's and custom boards running C++, Linux, Javascript and Chromium. https://blogs.nvidia.com/blog/2014/06/03/spacex-brings-tegra/ https://www.zdnet.com/article/spacex-weve-launched-32000-...
by TheMindVirus
Thu Jun 04, 2020 9:19 pm
Forum: General discussion
Topic: Pi Zero GPIO Reverser
Replies: 14
Views: 930

Re: Pi Zero GPIO Reverser

An RC2014/ZX80-style backplane is what I've been looking for: https://rc2014.co.uk/
2 Main modules I'm after would be a Pi module and a Motorola 68K DIP module.
RC2014.jpg
RC2014.jpg (26.99 KiB) Viewed 627 times
by TheMindVirus
Wed Jun 03, 2020 1:31 pm
Forum: General discussion
Topic: Pi Zero GPIO Reverser
Replies: 14
Views: 930

Re: Pi Zero GPIO Reverser

I'm going to order some kit for the weekend I think, thanks for the replies.
Hopefully you will appreciate this diagram explaining difference in interpretations of (admittedly vague) specifications:
Specifications.jpg
Specifications.jpg (156.52 KiB) Viewed 729 times
by TheMindVirus
Wed Jun 03, 2020 12:20 pm
Forum: General discussion
Topic: Pi Zero GPIO Reverser
Replies: 14
Views: 930

Re: Pi Zero GPIO Reverser

Thanks, the pHAT Stack looks great with the Micro Dot pHAT. Stock seems quite low though.
pHAT Stack.jpg
pHAT Stack.jpg (20.91 KiB) Viewed 786 times

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