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Re: PSoc Java code.
Quote:
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Also on a side note what happens when you feed a victor .set method with a value greater then 1? Does it just auto round down to 1?
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This is the Victor.set(double speed) method:
Code:
/**
* Set the PWM value.
*
* The PWM value is set using a range of -1.0 to 1.0, appropriately
* scaling the value for the FPGA.
*
* @param speed The speed value between -1.0 and 1.0 to set.
*/
public void set(double speed) {
setSpeed(speed);
}
It calls this method from the PWM class:
Code:
/**
* Set the PWM value based on a speed.
*
* This is intended to be used by speed controllers.
*
* @pre SetMaxPositivePwm() called.
* @pre SetMinPositivePwm() called.
* @pre SetCenterPwm() called.
* @pre SetMaxNegativePwm() called.
* @pre SetMinNegativePwm() called.
*
* @param speed The speed to set the speed controller between -1.0 and 1.0.
*/
final void setSpeed(double speed) {
// clamp speed to be in the range 1.0 >= speed >= -1.0
if (speed < -1.0) {
speed = -1.0;
} else if (speed > 1.0) {
speed = 1.0;
}
// calculate the desired output pwm value by scaling the speed appropriately
int rawValue;
if (speed == 0.0) {
rawValue = getCenterPwm();
} else if (speed > 0.0) {
rawValue = (int) (speed * ((double)getPositiveScaleFactor()) +
((double)getMinPositivePwm()) + 0.5);
} else {
rawValue = (int) (speed * ((double)getNegativeScaleFactor()) +
((double)getMaxNegativePwm()) + 0.5);
}
// send the computed pwm value to the FPGA
setRaw(rawValue);
}
As you can see from the part I have colored green, it automatically clamps values from -1 to +1. Giving it any value lower or higher will set it to full speed reverse/forward.
-Jeremy
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