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Aegis – open-source FPGA silicon

https://github.com/MidstallSoftware/aegis
73•rosscomputerguy•8h ago

Comments

blowback•5h ago
Excellent. Put me down for a couple.
Bluebirt•5h ago
Neat project - there are already a couple of good open FPGA projects. Have a look at Dirk Koch's and the FABolous teams work. They are doing exceptional work.

But all open FPGA projects miss the IO required for a good design. They do not have any serdes hardware nor DDR IO cells.

LarsKrimi•4h ago
This project seems to have a serdes block which seems to wrap whatever is in the PDK. Didn't look too far down but from a cursory glance it looked like it was built for an internal clock of 50 MHz (clock default to 20 ns) with an oversampling of 8: 400 MHz

If those numbers are at all right it puts it in useful territory. Very much so for a first spin

For a first spin it looks overall pretty useful. The only nitpick I have would be that `operation` on the DSP tile should be from fabric instead of config (hardcoded in bitstream) otherwise I don't see a convenient way of resetting the accumulator(?)

dizhn•3h ago
There's also an open source Authenticator software with the same name.
mosaibah•1h ago
The gap this closes is real. IceStorm and Apicula gave you open tooling but you were still loading bitstreams onto someone else's closed fabric. Yosys/nextpnr same story. Aegis is the first time the fabric itself is auditable, which matters a lot for anyone building hardware that needs a complete trust chain from RTL down to GDS. The wafer.space + open PDK path makes it actually tapeout-able, not just a simulation exercise. Curious how the LUT4 fabric competes on density against GF180 commercial offerings, that's usually where open implementations get humbling

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Aegis – open-source FPGA silicon

https://github.com/MidstallSoftware/aegis
73•rosscomputerguy•8h ago•5 comments

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