NET "RXD" LOC = "A7"; # input to RS232 driver
NET "TXD" LOC = "B7"; # output from RS232 driver
+#==============================================================================#
+# Incremental rotary encoder #
+#==============================================================================#
+# Connected to the header J4.
+
+NET "ROT_FEED" LOC = "H2"; # pin 01
+NET "ROT_A" LOC = "J2" | PULLDOWN; # pin 03
+NET "ROT_B" LOC = "K2" | PULLDOWN; # pin 05
+NET "ROT_PRESS" LOC = "E4" | PULLDOWN; # pin 07
+