Rohan makes ASICs πŸ› οΈ's Avatar

Rohan makes ASICs πŸ› οΈ

@rohan-devarc

Exploring the ASIC lore. Not your typical lobste. rs link-dumper or book-cover–posting zombie.

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15.11.2024
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Latest posts by Rohan makes ASICs πŸ› οΈ @rohan-devarc

The real question is that where do you draw the line on democratizing silicon?

04.03.2026 15:52 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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These are bare dies of the Kintex-7 XC7K325T and its pin-compatible Chinese clone, the JFM7K325T from Fudan Micro.

Only difference is that GTX transceivers of JFM7K325T behave differently, so the xilinx pcie core wouldn't work by default.

04.03.2026 15:52 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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I was just reading this!! ✨

03.03.2026 19:53 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

sit down mehdi....

sometime back there was a whole online mob by same set of people who tried to attack hindus merely for existing in america.

02.03.2026 08:34 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

ANTHROPIC !!!! πŸ‘πŸ‘

28.02.2026 05:50 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

BREAKING

TRUMP ANNOUNCES MAGAS WILL BECOME 10% MORE STUPID & BELOW THE AVERAGE IQ.

20.02.2026 18:47 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Fly through video for ROM-less Cordic Engine design.

This design is on TTSKY25A shuttle by @tinytapeout.com

Made easy with BlenderGDS plugin - github.com/aesc-silicon...

@mattvenn.net @urishaked.bsky.social @aksharvastarpara.bsky.social

21.01.2026 18:17 πŸ‘ 8 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0
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Fly through video for ROM-less Cordic Engine design.

This design is on TTSKY25A shuttle by @tinytapeout.com

Made easy with BlenderGDS plugin - github.com/aesc-silicon...

@mattvenn.net @urishaked.bsky.social @aksharvastarpara.bsky.social

21.01.2026 18:17 πŸ‘ 8 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0

How well do SP10 probes perform when used with high-frequency oscilloscope measurements?

20.01.2026 21:25 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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welcome to our cordic city!!

15.01.2026 20:23 πŸ‘ 1 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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welcome to our cordic city!!

15.01.2026 20:23 πŸ‘ 1 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

yes! it's from that same blender plugin.

15.01.2026 16:28 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Yes, that’s a GDSII render.
Yes, it’s inside Blender.
Yes, it’s our design on TTSKY25A chip.
@tinytapeout.com @mattvenn.net @urishaked.bsky.social

15.01.2026 16:25 πŸ‘ 5 πŸ” 1 πŸ’¬ 2 πŸ“Œ 0

oh! got it.

15.01.2026 16:19 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

can you post the "GPU running on FPGA"?

15.01.2026 16:11 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

....while CSIS sponsers terrorism on Indian soil.

28.12.2025 08:46 πŸ‘ 4 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Innovation in ZMOS process node led to development of modern CMOS and BiCMOS process node where we have 20 metal layers.

For instance, Sky130A 130nm process node have upto 5 metal layers.
bsky.app/profile/roha...

28.10.2025 05:12 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Back in the day, NMOS chips used only one metal layer, so designers had to squeeze all the wiring onto a single surface.

Metal 1: used for local interconnects, this allowed short and dense wiring.

Metal 2: used for global signals like buses, clocks, power.

28.10.2025 05:11 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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This is the DCJ11 PDP-11 processor, built using the old-school ZMOS tech, a 3 β€―ΞΌm NMOS process with two interconnect layers.

It was one of the first NMOS processes to use separate metal layers for local connections and global signals.

28.10.2025 05:10 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

🀩🀩

Another mike bell project to fab!

28.10.2025 05:09 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Fomu fpga?

27.10.2025 04:22 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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chinese semiconductor industry is creative for sure.

Nice idea for analog tapeout for some day.

26.10.2025 14:50 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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This looks like a matrix.
Each one has 128 analog switches.
We can do 8x16 analog array with one.

So this is actually a analog matrix.

26.10.2025 14:49 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

And guess what whole hdl for this is written in both system verilog and chisel/scala.

16.10.2025 20:38 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Note that Zve32x extension works only on integers, it needs Zicsr and Zvl32b base profiles to be implemented first.

Although the element size is capped at 32 bits, the wide vector registers (256 bits) still allow multiple elements to be processed simultaneously.

16.10.2025 20:37 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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Google has open sourced its Coral NPU, which uses a 32 bit RISC V core with the Zve32x extension. It supports vector arithmetic on data ≀ 32 bits, making it great for DSP applications.

It has been prototyped on a Xilinx Ultrascale Plus FPGA platform.

github.com/google-coral...

16.10.2025 20:36 πŸ‘ 3 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0
Teardown Session 56: wafer.space with Tim Ansell
Teardown Session 56: wafer.space with Tim Ansell YouTube video by Crowd Supply

Leo Moser and myself will be on @crowdsupply.bsky.social 's Teardown Session talking with @helenleigh.bsky.social about
@wafer.space this Thursday (3rd October) - youtu.be/tEOmnN8IAjs

30.09.2025 06:00 πŸ‘ 12 πŸ” 6 πŸ’¬ 1 πŸ“Œ 0
Kansas Lava The Functional Programming Group at the University of Kansas applies and extends functional programming technologies to the diverse areas of building computer systems, high-performance computing, info...

this ryt? ku-fpg.github.io/software/kan...

I'll try this. It's more mature I guess?

30.09.2025 07:50 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

We already have chisel for this right? or it lacks on something that only Haskell can provide?

30.09.2025 06:53 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

FYI : Original electronic diary was invented by a Indian guy known as Satyan Pitroda, alias Sam Pitroda.

He may be a tad racist, but a great guy. I mean all Indians are racist to each other, who cares.

www.computerhistory.org/revolution/m...

28.09.2025 10:44 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0