btashton

16 ms·

1.
by btashton 6y ago
With all these UF2 first boards the first thing I do is solder on the SWD header and figure out what magic sequence of memory read/writes I need to make over jlink to unlock the flash and remove the damn bootloader. Sometimes I wonder
2.
by btashton 6y ago
Over a year ago http://grep.app showed up which does basically all I want from GitHub search and Nat (GitHub CEO) said lets talk, but nothing public happend. Biggest thing I use it for is looking for examples of how to use some
3.
by btashton 6y ago
The contacts bit is a disaster right now, there is a whole support page devoted to it and it still does not tell the whole story. https://support.signal.org/hc/en-us/articles/360007319011-Ma... I had a contac
4.
by btashton 6y ago
You can already do a lot with https://renode.io I have run a full simulation with a verilator (slooow) of a small RISC-V before I had hardware in hand.
5.
by btashton 6y ago
So many years of people telling me that my exact setup does not work, yet here I am not remembering the last time I had an issue with displays on Linux. It has even gotten _better_ since I moved to Wayland which I am also told does not wor
6.
by btashton 6y ago
I wonder if this is the same VPN technology they have been using with Google Fi for public WiFi access points https://support.google.com/fi/answer/9040000
7.
How Does a C Debugger Work? (2014)(blog.0x972.info)
131 points by btashton 6y ago|29 comments
8.
by btashton 6y ago
Except that even studies by the US Department of Justice show that risk of financial loss has one of the lowest impacts on likely to appear in court. This is also not recent discovery, this was heavily researched in the 70s. Ironically jus
9.
by btashton 6y ago
Right URLs never change. Remember when one of the most popular golang logging libraries renamed from github.com/Sirupsen/logrus to github.com/sirupsen/logrus and all of a sudden everything would break because you were us
10.
by btashton 6y ago
Yes codewarrior is loading.
11.
by btashton 6y ago
I do not miss managing the memory banks, the HCS12 were also something special.
12.
by btashton 6y ago
I would have agreed with you at one point, but most of the automotive companies are diving into this. They want less computers and would rather invest in hardware partitioning if needed. BWM has said point blank all of the software in the
13.
by btashton 6y ago
You can also get with some more work the much higher resolution HIRT images from the GOES sats. It's kind or fun to mess with. I used it as an excuse to mess with offloading the error correction to an FPGA, which was fun but also tot
14.
by btashton 6y ago
BLE mesh is difficult to do at high performance across multiple platforms and we did it years before there was a spec. Would I use the spec now? Probably. Would I have waited 3 years for the spec to come out? No. At the time you could lock
15.
by btashton 6y ago
We wrote a Bluetooth mesh product before there was Bluetooth mesh standard. Don't call me lazy for not publishing a short spec when the actual Bluetooth spec is over 100 pages. BLE is "easy" managing a mesh network with tra
16.
by btashton 6y ago
This kind of response is a big part of why I have given up building commercial IoT products for now. It's great to want to have some super abstract high level self discovering protocol, but when you actually start to build on it it re
17.
by btashton 6y ago
Why is this the company employees problem. Seems like work should be supplying good audio hardware if this is a real issue.
18.
by btashton 6y ago
I don't get why people are OK with a company being able to wipe a personal device on a whim. If you want full control of my mobile, then provide a mobile.
19.
by btashton 6y ago
If you are interested in a framework for stitching together a soft SoC there is a great framework call FuseSOC. It supports several of the cores used here. : https://fusesoc.net/ There is also the LiteX project: https:&#x2
20.
by btashton 6y ago
If you tell it to _navigate_ home it will actually pull up the directions and the go button will have a autostart timer so you don't touch anything. Ask for directions and you will have to start touching the screen.
21.
by btashton 6y ago
First think I had to do was see if Active Desktop worked... And yes it does. "View My Active Desktop as a web page", I guess Windows 98 was just ahead of its time.
22.
by btashton 6y ago
I have come to just accept the firmware will be read out in most microcontrollers unless they are specifically built to hold secrets. Maybe you can keep someone from copying your code for a little while, but eventually it will happen and yo
23.
by btashton 6y ago
This is what I am currently working on. I think I paid $80 to get one shipped to the US most of them seem to be in eBay in Europe. https://twitter.com/enjoy_digital/status/1257985111469015040
24.
by btashton 6y ago
You can find some shitcoin mining flops that are $300-$400 worth of hardware being sold off for $60 that are PCIe cards. There are a few examples in the LiteX project.
25.
by btashton 6y ago
most of it was FPGA work but in some cases DSP processors. Even when you have floating point support it is much slower than if you use fixed point. As for MATLAB, modeled plenty of filters in it for fixed-point math.
26.
by btashton 6y ago
I thought for this the standard practice is fixed-point. Requires more planning and mental gymnastics but usually much faster and gives you full control of the precision. Maybe this has changed from my DSP days.
27.
by btashton 6y ago
What is your point? This is more powerful than all of the ones on your linked page.
28.
by btashton 6y ago
Yeah this is why I have 4 of the last revision sitting in a bag on a shelf. I got tired of print debugging, if you look in the forums there is some discussion on how to modify the hardware, but it is not easy.
29.
by btashton 6y ago
These are substantially more powerful than both of those families.
30.
by btashton 6y ago
This is one of the reasons I run podman instead where I can and don't just give users access to the docker service. You can also run buildkit in rootless mode

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