Wednesday, 2020-05-27

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futarisIRCcloudhttps://twitter.com/tachiniererin/status/1265609284081061888?s=1912:49
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tmbincIs there something existing that implements a wishbone slave on the host side in verilator for co-simulation?19:29
dkozelgr-verilog has a C++ streaming interface to AXI in Verilator, probably pretty easy to adapt to wishbone19:45
_florent_tmbinc: IIRC Antmicro did some work on that, but i'm not able to find the link19:54
_florent_tmbinc: not sure it was that, but could be useful:19:55
_florent_https://antmicro.com/blog/2019/09/renode-verilator-hdl-co-simulation/19:55
tpbTitle: Antmicro · Co-simulating HDL models in Renode with Verilator (at antmicro.com)19:55
_florent_https://antmicro.com/blog/2019/06/verilog-with-cocotb-and-verilator/19:56
tpbTitle: Antmicro · Open source Verilog simulation with Cocotb and Verilator (at antmicro.com)19:56
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benh_florent_: I noticed litedram on my arty spews a couple of DRC warnings in Vivado about IBUFDS having no loads, is htat expected ?22:37
benhtoplevel_drc_opted.rpt:Input buffer has_dram.dram/litedram/IOBUFDS/IBUFDS (in has_dram.dram/litedram/IOBUFDS macro) has no loads. It is recommended to have an input buffer drive an internal load.22:37
benh(and another one about IOBUFDS_122:38
benh_florent_: also something about all outputs of IDELAYTRL being unconnected, logic might be removed22:42

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