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I was just now made aware that Propeller 2 is apparently a thing and, just, wow. This chip is *insane*. It's got a CORDIC solver. It's got DVI. It's got up to 32 USB ports, or 64 UARTs, 64 anything because why have pin muxing when EVERY PIN DOES EVERYTHING.pic.twitter.com/FlFt64gt36
Docs: https://docs.google.com/document/d/1gn6oaT5Ib7CytvlZHacmrSbVBJsD9t_-kmvjd7nUR6o/edit# … Apparently current sample silicon runs at up to 390MHz, because that's where the PLL craps out before the logic does. Oh yeah and the Verilog is open source.
"but it can also be used as a general-purpose RF modulator"pic.twitter.com/zyWz2yQGrV
"This mode calculates an 8-bit ADC sample and checks for hysteretic triggering on every clock, providing the basis of oscilloscope functionality."pic.twitter.com/dgZY45UGUL
People did fake single-ended USB on Propeller 1? Yeah, this one does it properly. At the bit level, of course.pic.twitter.com/AOtMaif7sa
You thought that Thumb-2 IT instruction stuff was cute? Try this version. It even handles subroutines atomically.pic.twitter.com/rEt4NSjBEp
Look, you need to learn to stop calling this a "pixel mixer" and start calling it 4x8b SIMD.pic.twitter.com/eE4rc5e3dR
Native DVI/HDMI. Yes, really. Don't worry, it does NTSC/PAL modulation too, you retro folks.pic.twitter.com/vOl4ORSzXQ
These are the things that EVERY SINGLE PIN CAN DO. "PWM switch-mode power supply with voltage and current feedback"pic.twitter.com/Oy962jVDdm
It has Forth in the boot ROM. https://docs.google.com/document/d/e/2PACX-1vQKKl_A9gQ8VooCfrLOqw6a_rp9ddyAqiFeo1RopL2AtnHTaWIfvojYq-yfNlqoPD81a2EU1EJsQpRG/pub …
Correction: I don't think the Verilog is open source (though they have bitstreams up for running it on some FPGA boards, misnomered as "verilog"). The Propeller 1 verilog is GPL'ed; I'm not sure if they plan on opening Propeller 2, but I'm guessing they eventually will?
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