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In BrickOS 0.2.6.08, there's a minor bug where the LCD arrows
misbehave when the motor direction is set to brake. I believe
the intention is to turn both direction arrows on when the output
is in the brake state. However, what happens is that only one of
the arrows is turned on. This is easy to duplicate by using the
Lego remote control since it brakes the motors when you release
the motor buttons.
Currently, the code for motor A reads as follows:
void motor_a_dir(MotorDirection dir)
{
dm_a.dir = dm_a_pattern[dir];
dlcd_hide(LCD_A_LEFT);
dlcd_hide(LCD_A_RIGHT);
if (dir == fwd || dir == brake)
dlcd_show(LCD_A_RIGHT);
else if (dir == rev || dir == brake)
dlcd_show(LCD_A_LEFT);
}
Just remove the "else" in each of the motor functions and everything
should work fine!
Mark
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