clifford changed the topic of #yosys to: Yosys Open SYnthesis Suite: http://www.clifford.at/yosys/ -- Channel Logs: https://irclog.whitequark.org/yosys
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<awygle> i can't trick nmigen/nextpnr into letting me route the ecp5 memory phy. if i connect the DSI input of DQSBUFM, the Q output of TSHX2DQSA, and the Q output of ODDRX2DQSB to the pin directly, i get a multiple driver error, but if i try to put a BB bidirectional buffer in the obvious place, i get "DQSI must be connected to a top-level input"
<awygle> what am i doing wrong here?
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<awygle> oh my god i needed to switch the I and the O of the BB
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<mangelis> i wonder why yosys sometimes synthesizes $_SDFF_PP1_ cells? according to https://github.com/YosysHQ/yosys/blob/5aa35b8992fab8b55c1c1fae793b4ad845fd4c4c/techlibs/common/simcells.v#L2076 they could be just represented with a lut followed by a flipflop
<mangelis> i mean, what's the benefit of having such primitive?
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<nick_> Hi, I just got a simple project running on an ICE40-HX8K breakout board
<nick_> How can I tell the utilisation of the FPGA?
<tnt> read the nextpnr report ?
<tnt> somewhat early, before placing, it will print the packing results with resource usage.
* nick_ found icebox_stat which I assume is half of what I was looking for
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<Lofty> nick_: really, nextpnr tells you the utilisation information
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