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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<cr1901_modern> Is there a feature freeze or something of yosys right now? Usually PRs I make are merged in a few days. These few have taken 20 and 10 days respectively
<cr1901_modern> And I _still_ have a path bug to fix
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<ZipCPU> cr1901_modern: A path bug?
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<mattvenn> qu1j0t3: I've done some latency/jitter testing on a few keyboards
<mattvenn> using a logic analyser on the USB and a relay to press the key. so no key travel taken into account
<mattvenn> you can see some results and my sigrok setup here : https://github.com/Dygmalab/latency-testing
<tpb> Title: GitHub - Dygmalab/latency-testing (at github.com)
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<maikmerten> yay, my HX8K breakout board arrived. I find it funny that the FPGA device is still labeled "SiliconBlue", despite Lattice having bought them in... 2011?
<daveshah> I suspect they just made one big batch of devboards ages ago
<maikmerten> (manufacturing date seems to be 30th week of 2012...)
<maikmerten> yeah, guess they just went the "big batch" route
<maikmerten> another board in my local hackerspace also has the SiliconBlue marking
<shapr> now I have to check my devboard when I get home
<maikmerten> mouser still has hundreds available for immediate dispatch... wonder if Lattice outsourced the storage costs ;-)
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<TD-Linux> yeah mine is also siliconblue
<maikmerten> I guess we have pattern then :-)
<mithro> Apparently they where about to throw away a whole stack when the icestorm stuff hit
<maikmerten> would be interesting to get some data on how icestorm affected the adoption of those iCE FPGAs - but I guess there's none to be had :-(
<mithro> maikmerten: Definitely not anything publically
<sorear> I’m sure it helped sell devboards, but are those ever a meaningful fraction of volume?
<TD-Linux> their volumes are probably enormous, some iPhones have ice40s
<sorear> What would be interesting to know is if that or any other major use was caused by icestorm
<sorear> idk if the timing is possible in that case specifically
<mithro> sorear: Never underestimate how frequently people end up "using what they know" -- Probably a large number of people now know that lattice *exists* compared to previously only ever considering Altera / Xilinx
<TD-Linux> yeah, I wouldn't be surprised if icestorm created more Diamond users as well :)
<sorear> mithro: very true
<mithro> Although after using icestorm and *then* using the proprietary tools, you might just never use FPGAs again :-P
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<sorear> (is icestorm the only toolchain that supports macOS?)
<mithro> I think so?
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<sorear> It’ll be interesting to see what changes when the ecp5 stuff is ready
<maikmerten> ecp5... as in Cyclone V?
<maikmerten> oh, no, that's Lattice, too
<maikmerten> (I have a few Cyclone II boards called "ep2c5" and got side-tracked by that)
<sorear> There are a couple active projects but ecp5 seems closest
<maikmerten> ecp5 looks really decent
<maikmerten> guess it comes from a completely different design family than iCE, which just got aquired
<sorear> Yes
<maikmerten> huh, on the HX8K eval board the 12 MHz oscillator is apparently not connected to a pin that can drive the PLL?!
<maikmerten> fatal error: bad constraint on `clk_12mhz': no PLL at pin J3
* maikmerten is puzzled
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<mjoldfield> maikmerten: These are my blinky notes for the HX8K demo board http://mjoldfield.com/atelier/2018/02/ice40-blinky-hx8k-breakout.html
<tpb> Title: Martin’s Atelier: iCE40 Blinky on HX8K Breakout (at mjoldfield.com)
<maikmerten> mjoldfield, thanks
<mjoldfield> maikmerten: YMMV, I am a complete newbie with this stuff.
<maikmerten> we have something common then :-)
<maikmerten> that's always nice!
<maikmerten> mjoldfield, thanks, that actually helped
<maikmerten> had to instantiate SB_PLL40_CORE
<maikmerten> (instead of _PAD)
<mjoldfield> Oh good
<daveshah> sorear: we have a blinky for the ecp5 now built using a fully FOSS Verilog to bitstream flow, and ECP5 synthesis just got merged into Yosys today
<daveshah> the P&R still needs work and tidying up before its something that others could actually build/use but we're aiming for a release at the end of the month
<daveshah> this will still be very basic, probably just IO, logic and distributed RAM
<daveshah> EBR, DSP, fancy IO features, etc will come over the next few months
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<sorear> Ooh, thanks for the update
<sorear> Will the EOM release also have ice40 vtr?
<daveshah> yes, mithro is working on that
<mithro> Yes, at this very moment
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<mithro> Maybe even some support for Artix-7 stuff in VtR if I can figure out this ice40 timing stuff which would allow me to get back to that
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