Monday, 2020-10-05

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z0ttelHow should I interpret this ltp line? Is that a real gate? "$abc$144686$new_n6219_ (via $abc$144686$auto$blifparse.cc:377:parse_blif$144697"09:39
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az0rez0ttel: Yes, it's a real gate, with name info mangled/replaced because it's the re-imported result of BLIF export from ABC16:12
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kitten_nb_fivehello. just to make sure, is there something special to think about for a READ from an INOUT? for a write i need to enable the output that is tristated (16'hzzzz), but for a read i can simply assign the value to a reg [15:0] - or not? Lattice ECP5, Yosys and nextpnr19:11
daveshahYeah a read should just work fine like that19:12
kitten_nb_fiveok, thank you.19:12
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matthuszaghhello. is it possible to read a spice netlist with yosys? I'm only seeing a command to write a spice netlist19:20
Loftymatthuszagh: what would Yosys do with such a thing? It's not a SPICE program19:40
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matthuszaghLofty: fair enough. just thought it might since it can write spice netlists. the use case is that a tool called netlistsvg can read yosys json netlists to draw schematics. i thought it might be possible to use this + yosys to draw ngspice netlists. but to your point, this really isn't yosys's use case20:18
LoftyIt would be useful for it to output SPICE netlists after e.g. ASIC synthesis, but no real use in taking in SPICE netlists20:19
LoftySame reason why Yosys doesn't support things like the Verilog pmos/nmos statements20:20
matthuszaghLofty: ah ok that makes sense. thanks for clarifying20:20
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thardinmaking a lil' 200 MHz ADC pmod20:34
thardinI find digilent's catalog lacking20:35
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