Monday, 2021-09-06

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acathlaHi. The iCE40up5K says we can use the CDONE pin as a normal IO after configuration, but yosys complains : package does not have a pin named '7' (on TQFP144 package).14:17
gatecatI'm confused. ice40up5k doesn't have a tqfp144 package14:27
gatecatand afaik it's not the ice40up5k that lets you use CDONE after configuration but another of the ice40 series - most don't let you14:28
acathlaAh, sorry, the QFN package14:35
acathlaSG4814:36
acathlaAnd the doc is the iCE40 UltraPlus family datasheet, page 4114:37
tntThat's only in some other package, not the SG4814:39
tntYeah in UWG3014:40
tntCDONE is shared with IOB_13b14:40
tntbut in SG48 it's a dedicated pin, not user controllable.14:40
tnt(err IOB_12a sorry ...)14:41
acathlaThe doc says : "In user mode, after configuration, this pin can be programmed as general I/O in user function. In 30-pin WLCSP, this pin connects to IOB_12a, which also is shared as global signal G4 in user mode"14:48
acathlaI thought WLCSP was just an exception14:49
tntAnd you thought wrong apparently.14:50
tntIf you don't believe us, feel free to try in Radiant / icecube2 ...14:51
acathlatnt, haha, I do believe you of course. I just had a little hope to get a new IO available :(14:54
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