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| sf-slack | <tahmed> Is there any specific format for xdc files for symbiflow, because I got some errors in xdc file which are synthesizeable on vivado but not on symbiflow. ```ERROR: set_property IO_LOC_PAIRS: Incorrect number of arguments.``` It would be very kind if anyone of you can share XDC file for Arty-A7-35. | 06:59 |
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| sf-slack | <kgugala> you can find xdc examples in the symbiflow-examples repo | 07:00 |
| sf-slack | <kgugala> e.g. https://github.com/SymbiFlow/symbiflow-examples/blob/master/xc7/linux_litex_demo/arty.xdc | 07:00 |
| sf-slack | <kgugala> there are other xdc files in different examples | 07:02 |
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| sf-slack | <gergo> OK this is... I don't even... trust me this is not a troll question. I have synthesized from the same HDL source for a Xilinx A7 using Vivado and Symbiflow. The circuit produces VGA output at 640x480@60 mode. The Vivado version looks perfect on my screen. The Symbiflow version has what I could only describe as a "ghosting" effect. | 10:51 |
| sf-slack | <gergo> I understand that there are like a zillion layers of abstraction between what Symbiflow does and what the screen shows :) | 10:51 |
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