please Benj, i need help, DMX512 component

[kon44]

hi all
FC v6.1
I do not get to send data
only appear on the oscilloscope signals Synchromism to "0" and all the data to "1"
attached test program
We would appreciate it if possible that you verify if the program is incomplete or incorrect. I try to send him "0"'s to date.

thanks
Conrad