How easy are FPGA's to hook up and use use compared to traditional microcontrollers?
A brief explanation of why FPGA are a lot more complicated to setup and get working than microcontrollers.
A short video linking to several other FGPA videos.
NOTE: This is very old footage that was meant to be part of a series of videos on trying out some FPGA demo boards. It's been sitting around for too long, so I'm uploading all the footage I have now.
What is an FPGA: https://www.youtube.com/watch?v=gUsHwi4M4xE
FPGA Implementation Tutorial: https://www.youtube.com/watch?v=7AFGcAyK7kE
What is JTAG: https://www.youtube.com/watch?v=TlWlLeC5BUs
FPGA Demo Boards: https://www.youtube.com/watch?v=XZpYfm7jOt8
Forum: http://www.eevblog.com/forum/blog/eevblog-635-fpga%27s-vs-microcontrollers/
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Part 1 of a new design series on developing an isolated USB Lab Power Supply.
Convert your USB port into an isolated lab type power supply.
This is just the introduction announcing the intention and showing off some old concept prototypes. The design videos will follow as Dave develops them.
The finished project is planned to look quite different to the prototypes.
Another lengthy mailbag, with plenty of diverse stuff.
RCA Airnergy Bullshit Video: https://www.youtube.com/watch?v=P8s3Xjeg0sk
Forum: http://www.eevblog.com/forum/blog/eevblog-729-mailbag/
SPOILERS:
Kan Jam flying disc
Psion 3A Organiser
1974 808 RapidMan Calculator made in Canada.
Russian IN-9 Neon bargraph display tube.
Datasheet: http://exclusiv-store.com/tubes/in-9/1745_1.jpg
Info & characteristic curves: http://www.die-wuestens.de/rd/IN9-2.pdf
Wifi cellphone battery charging bullshit: https://www.kickstarter.com/projects/945803481/wave-a-cell-phone-that-charges-battery-with-wifi-s/description
RF Energy Harvesting. Can a WiFi signal light up a LED?
http://www.rfdiagnostics.com
Flir VP50 Non-Contact voltage detector.
Freescale PowerQuicc II security processor:
http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=MPC8248
APC Netbotz Room Monitor
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Get your T-Shirt here:
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And a sneak peak at the new Tektronix MDO3000 Mixed Domain Oscilloscope
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Dave shows how the assemblers will production test the µCurrent PCB panels using his new test jigs. And he will does a trial run on 50 µCurrent PCB's to determine the average testing time. What will take the longest - PCB testing, or wrapping, or packaging?
http://www.soltronico.com.au/
Forum: http://www.eevblog.com/forum/blog/eevblog-588-how-to-do-pcb-production-testing/
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Dave transformed his boring Youtube Silver Play Button Award into a cool retro nixie tube live subscription counter!
The final video in a 7 part series on this construction project:
Playlist: https://www.youtube.com/playlist?list=PLvOlSehNtuHutdg1kZkG7aAYhjoJnk2fc
And some amazing Youtube statistics.
My Youtube channel ranking is tanking and I LOVE IT!
https://www.youtube.com/watch?v=UGVdHM_iul0
Forum: http://www.eevblog.com/forum/blog/eevblog-999-youtube-silver-award-live-subscription-counter/
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What's inside a Dräger Multiwarn II gas detection warning system used in mining, oil, chemical, and emergency services etc to detect hazardous or explosive atmospheres.
Intrinsic safety design and how both catalytic bead and infrared IR gas detectors work, and pellistors.
And a teardown of a Hydrogen Sulfide (H2S) sensor.
http://www.a11supply.com/images/file/rev1_MultiWarn%20II_En.pdf
http://www.draeger.com/sites/assets/PublishingImages/Products/cin_x-am_5600/US/draeger-sensor-portable-handbook-9046571.pdf
http://www.xinpian.net/MOTOROLA/MC68HC711/MC68HC11E1.pdf
Forum: http://www.eevblog.com/forum/blog/eevblog-603-gas-sensor-teardown-drager-multiwarn-ii/
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The Dulmont Magnum "Kookaburra" from 1983 is the only laptop to have even been design and made in Australia, as well as being one of the world's first "clamshell" laptop designs.
Dave tears down this obscure retro classic based on the equally rare 80186.
Brochure: http://www.eevblog.com/files/Kookaburra.pdf
UPDATE:
John Blair has responded about this video:
Dave
Thanks so much for sending this along; I got a huge kick out of it.
I can answer some of the questions you raised in the video:
(*) You're right there was no removable R/W storage in 'laptop' mode; the 'disks' that MSDOS saw were implemented in RAM. You added removable storage by connecting the dual floppy drives via the parallel connector that you noted on the back.
(*) I wasn’t the original designer; I was brought in to run the software team (once Barry had the prototype hardware up), which I did throughout. Chris T was brought on later to run the hardware team; he and I worked together. Terry Crews was originally hired before me as engineering manager before me but it was immediately clear that he had no clue what he was doing in that role; they made him marketing manager, where he was responsible for those remarkable ads that you cited.
(*) The parallel port wasn’t really custom – was a standard configuration for that era.
(*) The 15 way ports were serial ports for printers et al, as you note later
(*) The RCA connector was a video port, as you note later.
(*) You're right that the ROMs contained MS-DOS – we actually had to modify MSDOS so that it ran from ROM, which was hard to do; lots of Gatesian self modifying code. I don’t believe anyone else got that to work, but it had a major benefit, in freeing up all the SRAM for stack and RAM disk
(*) 6:46 is classic, but in Barry's defence the model you have there is some weird prototype; hence all the kludges and the handwritten labels.
(*) The 80186 was NMOS, as you note. That was kind of the miracle here. Barry and I didn’t want CMOS because they were so so slow. But NMOS consumed a lot of power. The solution was to mod MSDOS so that the CPU and all of its support could be powered off between keystrokes; each time you hit a key, the 186 would come up from cold, and transparently reenter the OS. As you note. Gave us all of the performance of a PC and great battery life. We were much faster than 8088 desktops of the time.
(*) You Got It Working!!!! That’s so great! Congratulations.
(*) Drive B wasn’t ready because it was the plug in ROM
(*) The SRAM kept alive all the time – that’s where the RAM Disks were
(*) The tirade at the end isn’t really fair – this was a prototype between the Magnum and the Kookaburra . None of the points you make about removable store, video etc are correct – remember that when you plugged in a video monitor and disks, this was the fastest desktop PC of the time, that you could also take on the road.
Forum: http://www.eevblog.com/forum/blog/eevblog-949-vintage-australian-made-laptop-teardown/msg1080508/#msg1080508
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