[FTC]: Buttons RobotC

[JohnFogarty]

I am trying to assign buttons to control a Tetrix DC motor when ever i assign 2 functions to control the same motor say one button forward and one backward the motor coughs and jumps and vibrates moving spastically. I attached the code below, how could i solve this problem?




if(joy2Btn(2) )
{
motor[motorF] = 100;
}
else
{
motor[motorF] = 0;
}

if(joy2Btn(1) )
{
motor[motorF] = -100;
}
else
{
motor[motorF] = 0;
}