Sunday, 2021-03-28

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BryceSchroeder7Hi. I could have sworn I saw the XC7K420T in the project xray database. I remember because I was looking to see if the XC7K325T was supported and it wasn't. Now, though, when I look, all I see is XC7K070T. I have no idea where I saw the XC7K420T listed and it's driving me crazy... is there a canonical list of devices that are, not necessarily bug17:53
BryceSchroeder7free, but will result in a bitstream being generated?17:53
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tcalgatecat: on lifcl-17-7uwg72c, I slowed the clock down to 75MHz, and with a different random seed I got 88MHz out of PnR.   It didn't work on the board -- of course jumping straight to LiteX is quite a leap.   I'll start making some smaller tests, although if you know of a good starting point that would be useful.   Would the regression tests under nextpnr easy to adapt?19:10
gatecatNo, the nextpnr regression tests are mostly very specific things19:14
gatecatThe first I'd start with is this blinky example19:15
gatecathttps://github.com/gatecat/prjoxide/tree/master/examples/blinky_vip19:15
gatecat(changing the device and pinout)19:15
gatecatThen perhaps the simplest possible LiteX SoC (minimal picorv32 rather than vexriscv)19:16
tcalgatecat: thanks! I had missed those somehow.19:50
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