Chief Delphi - Reversing the joystick axis

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JBotAlan

09-02-2005 19:22

Reversing the joystick axis

Sorry if I didn't search well enough, but how does one go about reversing the joystick value? I tried a negative, but I realized the pwm value is an unsigned val, what is the math I need to do on the joystick value to make it so foreward is backward and backward is foreward?

Tristan Lall

09-02-2005 19:34

Re: Reversing the joystick axis

Code:

#DEFINE PWM_MAX 254

...

pwm01 = PWM_MAX - p1_y //Your joystick 1 y-value is reversed

jgannon

09-02-2005 19:34

Re: Reversing the joystick axis

Quote:

Originally Posted by JBotAlan

Instead of:

Code:

pwm01=p1_x;

do:

Code:

pwm01=255-p1_x;

Good luck.

pakrat

09-02-2005 19:47

Re: Reversing the joystick axis

Quote:

Originally Posted by jgannon

Instead of:

Code:

pwm01=p1_x;

do:

Code:

pwm01=255-p1_x;

Good luck.

Yeah, this worked for us

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