I have a schematic that is throwing a spurious warning. The schematic
is hierarchical, with multiple instances of a LED driver IC with
associated LEDs. To allow each of the LED drivers to be identified on
the I2C bus, I have exported the three address-setting pins and the 5V
rail (each driver is on its own filtered 5V supply). Each
address-setting pin can be connected to ground, 5V, or left floating,
all three having a significance to setting the I2C address.
The eeschema ERC has no problems with the address lines being marked
with a no-connection flag, but it chokes on the 5V output being so
marked, giving a warning, 'A pin with a "no connection" flag is
connected'. If I remove the no-connection flag from the 5V output, I
then get an error, 'Pin not connected'.
I could just ignore the warning, but since I don't understand what is
the problem, I thought I would first ask if anyone knows.
Hopefully the screen-shot I've attached is visible to you and clarifies
what I'm describing.
Regards,
Robert.
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