NXC  Version 1.2.1 r5
 All Data Structures Files Functions Variables Groups Pages
void OnRevEx ( byte  outputs,
char  pwr,
const byte  reset 

Run motors backward and reset counters.

Set outputs to reverse direction and turn them on.

outputsDesired output ports. Can be a constant or a variable, see Output port constants. If you use a variable and want to control multiple outputs in a single call you need to use a byte array rather than a byte and store the output port values in the byte array before passing it into this function.
pwrOutput power, 0 to 100. Can be negative to reverse direction.
resetPosition counters reset control. It must be a constant, see Tachometer counter reset flags.