create symbol files for existing elements

2022-03-10 16:52:46 +08:00
--- a/adder_8b/adder_8b.qsf
+++ b/adder_8b/adder_8b.qsf
@@ -80,4 +80,5 @@ set_location_assignment PIN_146 -to S4
 set_location_assignment PIN_147 -to S5
 set_location_assignment PIN_149 -to S6
 set_location_assignment PIN_150 -to S7
-set_location_assignment PIN_151 -to CO
+set_location_assignment PIN_151 -to CO
+set_global_assignment -name RESERVE_ALL_UNUSED_PINS_NO_OUTPUT_GND "AS INPUT TRI-STATED"