There are a couple of decent looking ebook bundles available via Humble Bundle at the moment:
Humble Bundles
Reply
Category Archives: Web
Super Nintendo Development Wiki
I found this kickass resource: Super Nintendo Development Wiki. See for instance Schematics, Ports, and Pinouts.
One of my YouTube viewers Max donated some stuff to the channel today. How cool is that!? Expect to see some Nintendo awesomeness in the near future. <3
Reflecting on 18 years at Google
Here are Hixie‘s parting remarks: Reflecting on 18 years at Google.
More chromium woes
Man my chromium browser has been giving me a lot of grief lately. Two times so far I needed to reboot to fix the problem. This is the third time and rebooting is always such a hassle. :(
------------------- Thu Nov 23 20:20:54 [bash:5.2.15 jobs:0 error:0 time:0] jj5@charisma:/home/jj5 $ chromium [1123/202056.945777:ERROR:elf_dynamic_array_reader.h(64)] tag not found [1123/202056.945823:ERROR:elf_dynamic_array_reader.h(64)] tag not found Trace/breakpoint trap (core dumped) -------------------
PCBWay: Educational 555 Board
I got an email from one of the marketing people from PCBWay who said they could offer me free PCB printing services in exchange for a review of their service on my blog. I am very happy to do that!
Today I signed up for an account over here: https://www.pcbway.com/Member/Login/
The signup process was extremely painless: email address, password, terms of service, privacy policy, done.
(Note: I am not a lawyer, but I did read the ToS and privacy policy, and basically they claim the rights to your design files for various purposes and might transfer your data over an insecure network. I think these services are fine for hobbyists dealing with open hardware, but if you’re a commercial entity dealing with higher value intellectual property or larger volumes you might like to get legal advice before engaging.)
After logging in I got an email confirmation code emailed to me. I updated my account settings including my basic information and contact information so they know where to ship my PCBs. In exchange for my having filled out my full profile they gave me US$35 worth of vouchers with various terms (e.g. minimum spend).
I then used their shared project service to search for a 555 timer circuit that would meet my requirements. I found this one: Educational 555 Board.
I clicked “Add to cart” and accepted all the defaults (shown below) on my order for 5 PCBs. So far I am a happy customer! (Update: as part of our sponsorship deal PCBWay covered the shipping costs too! I was a bit worried they might ask me to cover the shipping, but they included it, which was super excellent, especially as the shipping was about five times as much as the boards themselves!)
I’m just getting started with PCB printing. I expect that in future I will do much more of it. I have been working my way through PCB design with KiCad – updated for KiCad 7 to learn how to design PCBs using KiCad. Apparently there is a PCBWay Plug-In for KiCad, so that might be something worth checking out.
When my PCBs from PCBWay arrive I will make a video of me putting together the 555 timer circuit and then using it to test my IC test probes. Stay tuned for that one!
More chromium woes
So it seems that my trouble with chromium is not over. Today a new twist. Thank God I still have Firefox! I will try updating and rebooting again, but can’t do that at the moment.
------------------- Mon Nov 20 10:11:08 [bash:5.2.15 jobs:0 error:0 time:0] jj5@charisma:/home/jj5 $ chromium [4085207:4085207:1120/101109.660602:ERROR:policy_logger.cc(157)] :components/enterprise/browser/controller/chrome_browser_cloud_management_controller.cc(163) Cloud management controller initialization aborted as CBCM is not enabled. [4085207:4085238:1120/101109.672026:ERROR:login_database.cc(1100)] Password decryption failed, encryption_result is 2 [4085207:4085238:1120/101109.672044:ERROR:login_database.cc(1100)] Password decryption failed, encryption_result is 2 [4085207:4085238:1120/101109.672050:ERROR:login_database.cc(1100)] Password decryption failed, encryption_result is 2 [4085207:4085238:1120/101109.672055:ERROR:login_database.cc(1100)] Password decryption failed, encryption_result is 2 [4085207:4085238:1120/101109.672061:ERROR:login_database.cc(1100)] Password decryption failed, encryption_result is 2 [4085207:4085238:1120/101109.672064:ERROR:login_database.cc(1100)] Password decryption failed, encryption_result is 2 [4085207:4085238:1120/101109.672075:ERROR:login_database.cc(1100)] Password decryption failed, encryption_result is 2 [4085207:4085238:1120/101109.672079:ERROR:login_database.cc(1100)] Password decryption failed, encryption_result is 2 [4085207:4085238:1120/101109.672082:ERROR:login_database.cc(1100)] Password decryption failed, encryption_result is 2 [4085207:4085238:1120/101109.672086:ERROR:login_database.cc(1100)] Password decryption failed, encryption_result is 2 [4085207:4085238:1120/101109.672091:ERROR:login_database.cc(1100)] Password decryption failed, encryption_result is 2 [4085207:4085238:1120/101109.672098:ERROR:login_database.cc(1100)] Password decryption failed, encryption_result is 2 [4085207:4085238:1120/101109.672107:ERROR:login_database.cc(1100)] Password decryption failed, encryption_result is 2 [4085207:4085238:1120/101109.672115:ERROR:login_database.cc(1100)] Password decryption failed, encryption_result is 2 [4085207:4085238:1120/101109.672132:ERROR:login_database.cc(1100)] Password decryption failed, encryption_result is 2 [4085207:4085238:1120/101109.672147:ERROR:login_database.cc(1100)] Password decryption failed, encryption_result is 2 [4085207:4085238:1120/101109.672154:ERROR:login_database.cc(1100)] Password decryption failed, encryption_result is 2 [4085207:4085238:1120/101109.672159:ERROR:login_database.cc(1100)] Password decryption failed, encryption_result is 2 [4085207:4085238:1120/101109.672165:ERROR:login_database.cc(1100)] Password decryption failed, encryption_result is 2 [4085207:4085238:1120/101109.672169:ERROR:login_database.cc(1100)] Password decryption failed, encryption_result is 2 [4085207:4085238:1120/101109.672173:ERROR:login_database.cc(1100)] Password decryption failed, encryption_result is 2 [4085207:4085238:1120/101109.672178:ERROR:login_database.cc(1100)] Password decryption failed, encryption_result is 2 [4085207:4085238:1120/101109.672185:ERROR:login_database.cc(1100)] Password decryption failed, encryption_result is 2 [4085207:4085238:1120/101109.672193:ERROR:login_database.cc(1100)] Password decryption failed, encryption_result is 2 [4085207:4085207:1120/101109.758579:ERROR:cmd_buffer_helper.cc(141)] ContextResult::kFatalFailure: CommandBufferHelper::AllocateRingBuffer() failed Fontconfig error: Cannot load default config file: No such file: (null) [1120/101109.770548:ERROR:elf_dynamic_array_reader.h(64)] tag not found [1120/101109.770620:ERROR:elf_dynamic_array_reader.h(64)] tag not found 30185030681216:error:1000007d:SSL routines:OPENSSL_internal:CERTIFICATE_VERIFY_FAILED:../../third_party/boringssl/src/ssl/handshake.cc:393: Trace/breakpoint trap (core dumped) -------------------
// 2023-11-22 jj5 – UPDATE: a reboot fixed this problem.
The Internet Con
Today I was referred to Cory Doctorow‘s new book: The Internet Con: How To Seize the Means of Computation. Apparently it’s basically just about the idea that web services should interoperate. I’m not going to read this one, but you might?
Linux web sites
Just some notes about web pages I was reading today.
- Linux Journal
- Linux Foundation
- Linux Foundation DokuWiki site
- Linux Standard Base (LSB)
- The Linux Kernel Archives
- LANs/ethernet-faq
- Ethernet Books by Charles Spurgeon and Joann Zimmerman
- IP Sysctl
- The Linux Kernel Module Programming Guide (for Hello, World Linux kernel; there’s also some good stuff on YouTube)
Chromium crashed
Today my chromium crashed like this:
------------------- Sat Nov 18 02:18:49 [bash:5.2.15 jobs:0 error:0 time:1] jj5@charisma:/home/jj5 $ chromium [1118/021851.032430:ERROR:elf_dynamic_array_reader.h(64)] tag not found [1118/021851.032474:ERROR:elf_dynamic_array_reader.h(64)] tag not found Trace/breakpoint trap (core dumped) -------------------
…gonna try upgrading, apparently there are new packages.
Update: upgrade didn’t fix the problem, but a reboot did.
Moving interrupts to threads in the Linux kernel
Found an old LWN article: Moving interrupts to threads.