Monday, 2021-05-03

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corecodesomething odd happened to me with nextpnr - new version doesn't want to place  SB_LED_DRV_CUR anymore16:31
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gatecatcorecode: can you give me an example design and I'll have a look?17:32
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corecodei'll rebuild everything here to make sure that it still is the case17:46
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justchen1369hi22:37
justchen1369how could I synthesize a design down into just logic gates?22:37
justchen1369when I try I still end up with an sdffe node22:37
mwkyosys cannot synthesize FFs into logic gates; that'd be just asking for trouble since you really want them to be implemented via well-characterised pre-designed cells22:54
mwkif you really want to do it, you can provide your own mapping with techmap (perhaps together with dfflegalize and/or dffunmap to reduce the number of different cells you need to map)22:55
justchen1369FF?22:56
mwkflip-flops22:56
justchen1369ah22:56
justchen1369I realized quickly that yosys has a deceptively high learning curve haha22:56
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