SetScore(which player)
From pinHeck Wiki
Tells the A/V processor what the current player's score is. This is typically used by the AddScore(x) command.
At the beginning or end of a game you will want to use SetScore(x) to clear all the player scores.
Example:
playerScore[1] = 0; //Set player 1's score to 0 (internal PIC32 value) SetScore(1); //Update player 1's score on the A/V processor
The Propeller A/V processor does not share variables with the PIC32. Therefore, if something changes on the PIC32, it needs to update the A/V processor about it.