OK, I wired up the serial port and, using the built-in serial port com tool in MicroStudio, I am able to see information from PORTC.6; however the data (which I thought would be 1s and 0s) is coming out all garbled as weird characters and zeros with square edges.

I am using the SEROUT2 command:

SEROUT2 PORTC.6,16780,[adval]

Also, I have included the modedefs.bas file. Any ideas?