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  • S/PDIF Digital (Optical TOSLINK) Output

  • Thanks mostly to Frank B, we now have direct S/PDIF output from the Teensy Audio Library!Here's a detailed blog article.You can get optical TOSLINK digital audio with a $1 connector (Digikey 1080-1434-ND) or just a red LED shining into the optical cable.In...
  • 1983 Chevy C20 Pickup Restomod.

  • The following is a list of all things that I plan on doing to my truck. Replace stock horn with This. Replace glass pack mufflers with Thrush Turbo mufflers. (Done, you can hear your self think now.) Grease window crank mechanisms.(Done, no more broken...
  • Memory granularity

  • You are now used to computers with byte-granular pointers. Users of CRAY computers, however, don't have this luxury and must deal with 64-bits words. Now, have fun with ASCII/UTF8 strings !OK, a CRAY is not designed for word processing. And it can handle...
  • I2S framing errors on the STM32

  • After 5 years of living in fear of hearing loss, a solution to I2S slave mode framing errors on the STM32 was finally found.  The trick is the STM32 doesn't automatically align samples on the WS transitions.  It just spits out 32 bit samples...
  • Memory Card

  • With the mainboard taken care of, and a proper bus pinout defined, I decided to tackle the memory as next target. Compared to the original, I don't plan to use the old-style Intel 2112 RAM chips, but instead went for the cheapest non-volatile storage...
  • OSU FreePDK45 and derivatives

  • One easy library to add to the collection is OSU's FreePDK45, found at https://vlsiarch.ecen.okstate.edu/flows/ (direct download link : https://vlsiarch.ecen.okstate.edu/flows/FreePDK_SRC/OSU_FreePDK.tar.gz : only 1.7MB, mirroredhere) It's a good candidate...