when to support Tang Nano 20K

[BlaskStone]

Tang Nano 20K is a development board, using the [GW2AR-18 QN88] FPGA, containing 20736 LUT4 logic cells and 15552 Filp-Flops.
Dertails can see；https://wiki.sipeed.com/hardware/en/tang/tang-nano-20k/nano-20k.html

I am herer to ask when will Tang Nano 20K be suuported .
Thaks~

[lushaylabs]

Hey @yuahualove

I think it should be supported soon (if not already) with the new nextpnr-himbaechel updates.

It still has not yet been merged into oss-cad-suite but if you want to get a preview you can test out our build from here https://github.com/lushaylabs/oss-cad-suite-build/releases/tag/2024-05-03

Using this with the newest version of our extension should use the new nextpnr-himbaechel.

This is still early though and has not been tested, (the extension support was implemented before the final specification was created for the tang nano 20K so it really might not work)

We will be testing it internally in the next week or so and once it gets merged into oss cad suite we will make a formal release

[BlaskStone]

thanks for the patch!

[Krasnomakov]

thanks for the patch!

Did it work?

[Krasnomakov]

I have this when try simple led blinking on 20K

ConfDataLength: 712
LoadingRate: 2500000
ProgramDoneBypass: OFF
SPIAddr: 00fff000
SecurityBit: ON
idcode: 1100481b
Error: Error: Failed to claim FPGA device: mismatch between target's idcode and bitstream idcode
Error: bitstream has 0x1100481B hardware requires 0x0000081b

[Lucretia]

Can you update your vscode marketplace page as it still says 20k is not supported.