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| singham | Folks, are the gowin SRAM based FPGAs supported? | 10:16 |
|---|---|---|
| lofty | singham: #yosys-apicula | 11:20 |
| lofty | singham: SOFA leverages the OpenFPGA framework to use Yosys through their own scripts, but it's not directly supported upstream because they haven't contributed anything upstream | 11:33 |
| lofty | Also, with the full disclosure that I used to work for the University of Utah who develop OpenFPGA (but not on OpenFPGA itself) | 11:33 |
| lofty | OpenFPGA is very definitely one of the FPGA frameworks of all time | 11:34 |
| singham | What is yosys-apicula? | 11:57 |
| singham | lofty: Don't worry about the full disclosure thing. Internet is way more untrustworthy. Today, absolutely nothing can be verified on internet without meeting the person in real life. | 11:59 |
| singham | I mean so called beautiful technology AI has overriden trust in internet. | 11:59 |
| lofty | singham: it's a tradition for FPGA reverse engineering projects to have codenames; gives them a bit of identity | 11:59 |
| lofty | Project Apicula is the project to reverse engineer Gowin FPGAs, and its IRC channel is #yosys-apicula | 12:00 |
| singham | Interesting | 12:03 |
| singham | I find it a bit astonishing that FLASH based FPGAs were solved before SRAM ones | 12:03 |
| whitequark | (solved?) | 12:20 |
| singham | Meaning the way to code them was found through reverse engineering | 12:21 |
| whitequark | as far as I know, SRAM ones came first | 12:22 |
| whitequark | well, unless you count GreenPAK4, which isn't really flash based (it uses an OTP ROM) | 12:22 |
| singham | Just the littlebees are supported right? | 12:24 |
| singham | They're FLASH based. | 12:24 |
| whitequark | oh, you mean by Gowin specifically? | 12:24 |
| singham | Yes | 12:26 |
| whitequark | from a RE perspective, in my experience, SRAM based and Flash based devices don't make a lot of difference | 12:30 |
| whitequark | I've RE'd a family of CPLDs which has both Flash and SRAM devices | 12:30 |
| whitequark | the bitstreams are nearly identical | 12:30 |
| singham | Yes, but still, I can't buy a board, and then find it is not supported by symbiflow | 12:33 |
| singham | That would be bad. | 12:33 |
| * singham gotta go. Will see you folks later. Thanks lofty and whitequark | 12:33 | |
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| so-offish | hey everybody whats up | 16:23 |
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