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Oh man how this makes me want to make the jump from normal electronics design into doing a chip. They might not allow it (no chance of marketplace sales or fol
by throwawaygimp 5y ago
Oh man how this makes me want to make the jump from normal electronics design into doing a chip.
They might not allow it (no chance of marketplace sales or follow-on volume), but if I were better off I'd drop the $10k or so and do something random just for the experience. Maybe a bunch of different little designs on one IC.
- jecel 5y agoIf you don't mind publishing your project as open source then there is the option to let Google pay for it: https://efabless.com/open_shuttle_program/2 https://efabless.com/open_shuttle_program/2 There are 40 slots, so you might not get selected. But the open shuttle uses the same software and framework as chip ignite.
- mikewarot 5y agoI've had a chip design bouncing around in my head since the 1980s, now I can finally get it made. Thanks so much for posting this. The idea is simple... a grid of 4x4 LUTs, each geographic neighbor has 1 bit in, and 1 bit out, there are 16 states, each with 4 outputs. Turns out that this route-less FPGA can do some fairly amazing things, at least in theory. Now I intend to find out. The really old blog I had about it - https://bitgrid.blogspot.com/ https://bitgrid.blogspot.com/
- jecel 5y agoThere have been FPGAs in the past which used the logic blocks for routing, including the Xilinx 6200. I think that was also the case for the Atmel AT40K FPGAs, but could be remembering wrong. In fact, our project for the previous Google shuttle was an FPGA-like device which also routes data using logic cells. Here is an introduction to the idea: https://github.com/fiberhood/MorphleLogic/blob/main/README_MORPHLE_LOGIC.md https://github.com/fiberhood/MorphleLogic/blob/main/README_M... It worked in simulation and the chip is currently scheduled to be shipped to us on September 6. There were 2 or 3 projects that were more conventional FPGAs.
- mikewarot 5y agoThe Morphie blob looks like a special case of a 4x4LUT. I'd be interested to know how the chips work out.
- jecel 5y agoThere are some common features, but also differences that makes them a bit hard to compare directly. An academic project that takes yet another approach to this design space is: http://cba.mit.edu/projects/rala/ http://cba.mit.edu/projects/rala/