open source HW & async circuits links

Open-source, synchronous stuff:

Rocket RISC-V core 1.4GHz on 45nm SOI
http://www.cs.berkeley.edu/~yunsup/papers/riscv-esscirc2014.pdf

Archipelago Open-Source FPGA
http://www.eecs.berkeley.edu/Pubs/TechRpts/2014/EECS-2014-43.pdf

Open-source bitstream generation for Xilinx
http://drop.isi.edu/sites/default/files/users/nsteiner/soni-2013-bitstream-fccm13.pdf

Qflow: a digital synthesis flow using open-source, EDA tools
http://opencircuitdesign.com/qflow/

gEDA for the board and stuff
https://en.wikipedia.org/wiki/GEDA

Tekmos for 350nm gate-arrays or cheap MPW's on others
http://www.tekmos.com/products/asics/process-technologies

eASIC for 90nm, 45nm, or 28nm S-ASIC with lower NRE and lower volume
http://www.easic.com/products/90-nm-easic-nextreme/

Triad Semiconductor for low NRE, mixed signal
http://www.triadsemi.com/vca-technology/

Asynchronous stuff below:

AMULET
http://apt.cs.manchester.ac.uk/projects/processors/amulet/AMULET3_uP.php

Note: Been doing asynchronous ARM's for quite a while.

Octasic asynchronous DSP
http://www.octasic.com/technology/opus-dsp-architecture

Cornell's asynchronous FGPA page
http://vlsi.cornell.edu/fpga.php

Test of one at 180nm vs Xilinx. Async wins.
http://vlsi.cornell.edu/~rajit/ps/highperf.pdf

Caltech presentation on asynchronous design flow, their chips, and detailed comparisons to synchronous ones
www.async.caltech.edu/general07.ppt

Caltech's papers on the subject
http://www.async.caltech.edu/publications.html

Design of standard-cell libraries for asynchronous circuits with teh ASCEnD flow
http://www.computer.org/csdl/proceedings/isvlsi/2013/9999/00/06654647.pdf