Monday, 2021-12-20

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-_whitenotifier-2553- [symbiflow-arch-defs] MidsummerNight opened issue #2351: arch-defs not downloading the latest version of prjxray-db when building - https://git.io/JD5Xi09:32
-_whitenotifier-2553- [symbiflow-examples] MidsummerNight opened issue #231: symbiflow-examples also doesn't download the latest prjxray-db - https://git.io/JD5Nn10:37
tpb<n​ickoe> Does symbiflow (prjxray) support xc7a35t-csg324-1?15:33
tpb<s​f-slack> <kgugala> yes, this is the part used on Arty15:34
tpb<s​f-slack> <kgugala> we have quite a few examples targeting this boards15:34
tpb<s​f-slack> <kgugala> *board15:34
tpb<n​ickoe> Ok, it was just because I tried to build wtih the symbiflow toolchain in litex and in litex there is a mapping where this is not part of15:36
tpb<n​ickoe> let me find it again15:36
tpb<n​ickoe> kgugala https://github.com/enjoy-digital/litex/blob/321b91d551ae58f32c14596985d096d178c32be6/litex/build/xilinx/symbiflow.py#L109-L11315:41
tpb<n​ickoe> And also the sxection fuirther down? https://github.com/enjoy-digital/litex/blob/321b91d551ae58f32c14596985d096d178c32be6/litex/build/xilinx/symbiflow.py#L127-L13115:42
tpb<s​f-slack> <kgugala> xc35t and xc50t are the same chips15:42
tpb<n​ickoe> Currently I have defined the chip  in my platform description as "xc7a35t-csg324-1"15:43
tpb<n​ickoe> And I am not really too familiar with the naming to really understand if somthing is compatible synbiflow wise or otherwise ..15:44
tpb<n​ickoe> Should I just add "xc7a35t-csg324-1" : "xc7a50t_test", to the dict for symbiflow-device?15:46
tpb<s​f-slack> <kgugala> yep, you can15:46
tpb<s​f-slack> <kgugala> or simply use xc7a35ticsg324-1L15:46
tpb<n​ickoe> does the i vs dash mean anything, and the L?15:48
tpb<s​f-slack> <kgugala> check this https://www.xilinx.com/support/documentation/selection-guides/7-series-product-selection-guide.pdf (slide 6)15:58
tpb<n​ickoe> Ohh, well, ERROR: Cell port mars_ax3.BbFilterAXI.o_tvalid is driving constant bits: 1'0 <= \BbFilterAXI.o_tvalid      still some way to go for symbiflow, but I gues I need to re-fixup the build with vivado ebfore I try to compare with symbiflow again. At least I can easily test it now.15:59
tpb<n​ickoe> kgugala thank you for the link16:00
tpb<n​ickoe> I made this workaround for now, https://github.com/nickoe/litex-boards/commit/473a748c24776ceca1dff4e57a54d5ae1798c4e516:00
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