November 2018 - Libresilicon-developers

T-Shirt
by David Lanzendörfer 02 Dec '18

02 Dec '18

Hi folks For the 35c3 I've been designing the front of the T-Shirt (Yes. I did it in magic) What do you think about it? https://github.com/libresilicon/PearlRiver/blob/master/Layout/img/tshirt.png Cheers David

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F.Y.I. - get yourself prepared for designing a GPU
by Hagen SANKOWSKI 27 Nov '18

27 Nov '18

https://iq.opengenus.org/basic-graphics-processing-unit-gpu-design-concepts/ very simplistic

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turning verilog into graphical layout (PCB component style)
by Luke Kenneth Casson Leighton 27 Nov '18

27 Nov '18

hi, are there any tools that will take verilog and generate something akin to a PCB "component" plus show a set of "unrouted nets"? i would like to get a visual feel for what a design looks like, and a conversion of verilog to "blocks" is the easiest way i can think of. l.

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Mask placement
by David Lanzendörfer 26 Nov '18

26 Nov '18

Hi I've now placed the layers within the mask frame https://github.com/libresilicon/PearlRiver/tree/master/Vendors/HKUST/Masks Reduction factor is 5:1 so I scaled it up a bit. If it's ok with you, I will manufacture them together with the responsible guy, in the lab on Monday or so. Cheers David

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Mask order
by David Lanzendörfer 21 Nov '18

21 Nov '18

Hi folks I've just ordered the 5 masks after multiple pre-launch fixes. I'd say they should arrive in around 5 work days. On Friday I've got some more qualification courses but I'm actually already qualified to use the machines for building at least CMOS and metal interconnect. So as soon as the masks arrive I'll get started. Cheers David

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Third round: Release candidate
by David Lanzendörfer 21 Nov '18

21 Nov '18

Hi I've now rendered a new GDS2 file with all the changes suggested by you folks. I fixed the last details and now don't see anything extraordinary anymore. Can you have a look at the output and see whether you spot an error I missed? https://github.com/libresilicon/PearlRiver/blob/master/Layout/gds/PearlRive… Thanks David

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Review: Second release candidate
by David Lanzendörfer 20 Nov '18

20 Nov '18

Hi all After yesterdays Mumble session I've now added the missing structures Ferenc has pointed out. Please everyone look over the GDS2 file, if no more mistakes have occured I'd say we can go and order it. https://github.com/libresilicon/PearlRiver/blob/master/Layout/gds/PearlRive… Cheers David

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Reminder - next Mumble Session on November 18, 2018 21.00 HKT
by Hagen SANKOWSKI 17 Nov '18

17 Nov '18

Hello List! Just a small reminder for our next Mumble Sessions on this Sunday, November 18 at 21.00 Hong Kong Time. Please join us as usual at our Mumble Server with IP 109.109.202.102 at Port 64738, the Channel is IC. On the agenda are (at least) this topics - Review the PearlRiver Die - Mask Ordering Happy to hear from you! Hagen

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While designing hopefully backdoor free chips
by Hagen SANKOWSKI 17 Nov '18

17 Nov '18

you should be aware of stuff mentioned in this talk from 32c2. The original in German: https://media.ccc.de/v/32c3-7146-hardware-trojaner_in_security-chips and the english translation: https://www.youtube.com/watch?v=eQA0UBoJ4eo CU on 35c3! Hagen.

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Review before mask order
by David Lanzendörfer 17 Nov '18

17 Nov '18

Hi all Hagen and I are done so far with reviewing the mask set. Please have a look at the GDS2 file here and review it as well: https://github.com/libresilicon/PearlRiver/blob/master/Layout/gds/PearlRive… If you can't spot any further errors we're going to order it tomorrow night after the mumble session. Cheers David

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