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<miek>
what's the state of ecp5 dsp suport at the moment? if i wanted to make an fir filter for example, is it a case of using diamond/clarity to find the right primitives to stick together, or is it more complicated than that?
<daveshah>
Only the MULT18X18D is supported by nextpnr/trellis, and cascading isn't supported either
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<awygle>
dang daveshah, you're the best. was not expecting to wake up to a fix, especially given i did nothing to help you lol
<daveshah>
tbh I just tried it with an adder JSON I had lying around
<awygle>
well thanks :) now it is obvious that... i am not meeting my timing req lo
<awygle>
l
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<awygle>
can i get `yosys show` to drop the clock signal? it really clutters up the output
<mwk>
hmm
<mwk>
'show w:<your clock wire name here> %n'?
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<awygle>
how would that interact with other arguments?
<mwk>
what other arguments?
<awygle>
to the show command
<mwk>
any -options should come before the selection part
<awygle>
and what about the "which module to draw" argument?
<mwk>
oh, then you need to combine selections
<awygle>
(i tried dropping it and using select beforehand but it still complains about needing only one module to output svg)
<mwk>
`show top w:<clockwire> %n %i`
<mwk>
does this work?
<awygle>
that got it, yes
<awygle>
great, thanks
<awygle>
what syntax is that?
<mwk>
`help select`
<awygle>
... and how would i also add the reset line to it? :p
<awygle>
ah ok
<mwk>
`show top w:<clockwire> %n %i w:<resetwire> %n %i`
<awygle>
dang that's complicated
<mwk>
not exactly pretty, but should work
<mwk>
yeah
<mwk>
hmm or actually
<mwk>
`show top w:<clockwire> %d w:<resetwire> %d`
<mwk>
%d should be equivalent to %n %i I guess
<awygle>
that's awesome, thanks a ton mwk
<awygle>
wasn't there some work on using opentimer with nextpnr?
<daveshah>
not that I know of
<awygle>
ah
<awygle>
i'm kind of struggling with figuring out what's actually my critical path here
<awygle>
oh well, i'll work it out
<daveshah>
yeah, timing is a real weak point of nextpnr