Kiwi + American :: electrical engineer + software developer :: Googler (Steam on Chrome OS) :: Bay Area dweller
Palo Alto, CA
Joined March 2007
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Oh dear. Guess I’ll take the link out of my profile name here, so this profile can stay up as a placeholder; enough of my friends have already found me at the obvious place 😅
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We did it! This is what I've been working on for the past 10 months: theverge.com/2022/3/22/22990… #steamonchromeos
This chip shortage is no joke... guess I should have stocked up on ATSAMD21E18A chips a few months back! Time to go see if any of my boards (myelin.nz/acorn/postbox and myelin.nz/arcflash) will work with the ATSAMD21E17D instead.
Props to whoever designed the Lattice LCMXO2 FTG256 ball map -- love the symmetry and lack of hard to route IOs right in the middle!
Fascinating to look at the VOC levels in the air at home during painting (thanks to @getawair) with fast-drying shellac primer; safe level is 300 ppb and it spiked to 38k ppb for an hour or so! The little spike later on is from the follow up coats of "zero VOC" paint.
Interesting commentary by Adafruit on the likely direction of “maker” hardware and toolchains nitter.gq/adafruit/status/101164…
*Now* I see why programmable logic people hate asynchronous resets. Spent all evening tracking down a heisenbug that I'm now pretty sure was caused by ringing on an SPI select line into a CPLD. Of course the bug went away as soon as I connected up a logic analyzer!
Oh wow, the CMSIS-DAP JTAG support I implemented for OpenOCD in 2016 and then forgot about ended up in the main distribution -- thanks to Maksym Hilliaka for picking that up! github.com/ntfreak/openocd/c…
Just ported the HID-SWD/JTAG part of ARM's CMSIS-DAP firmware to the Pro Micro and Teensy 3.2 myelin.co.nz/post/2016/3/12/
Raw JTAG working with CMSIS-DAP in OpenOCD! Working on performance improvements now. github.com/myelin/openocd/tr…
JTAG debugging working on ESP8266 using OpenOCD and my Teensy remote_bitbang code! github.com/myelin/teensy-ope…
Put this in your .bashrc on OS X to fix annoying 512-byte block behaviour in du: export BLOCKSIZE=1024
Whipped up a board so I can test out JTAG + ESP8266: myelin.co.nz/post/2016/2/6/#…
Surprised I haven't heard more about JTAG debugging the ESP8266. Just found out about this: visualgdb.com/tutorials/esp8…
Hardware hackers: anyone tried out the MORNSUN B0505S isolated DC/DC converters? ~$1 each on Aliexpress.
Clever idea from @scanlime in PoC||GTFO10 -- use SWD to remote-control cheap Cortex-M chips for I/O extension sultanik.com/pocorgtfo/pocor…