TPS65981: How to select 20V from source.

Finally I got this!

The problem that was making TPS65981 not accepting any configurations was the Polling mode on the Application Customization Software. I just changed it to Manual.

And to make the board to use 20V from the source was a little more complicated:
- First, go to Configuration Registers tab and select Control Configuration (0x29);
- Read it and PDO Intrusive Mode box must be checked (if it's not, select and write register);
- Now, go to Debug Registers tab and select Received Source Capabilities (0x30);
- See what possible Source PDOs is available and remember that (in my case, 1st: 5V, 2nd: 9V and 3rd: 20V);
- Finally, go to Commands tab and select Send Request Data Object (SRDO);
- In Object Position just write the number of source PDO you want to use (3 selects 20V) and Execute SRDO;
- If you received SUCCESS_CMD as Output, the change was successful, if not, check if you are in sink mode.
- To see if that's for real, go to Debug Registers tab -> Active Contract PDO (0x34) and confirm that the Voltage is 20V.

That's all ... this module is too much complex :O ... and what is the meaning of sending a SRDO message? Using an external processor, what I have to do to send this message? (datasheet is so much complex but still poor :( )