Έξοδος PWM

Εισαγωγή

The pwm_out class is used to control PWM (Pulse Width Modulation) output on a VEX EXP 3-Wire port. It allows devices to send variable-width pulse signals to compatible 3-Wire components.

Κατασκευαστές κλάσεων

pwm_out(
  triport::port &port );

Καταστροφέας κλάσης

Destroys the pwm_out object and releases associated resources.

~pwm_out();

Παράμετροι

Παράμετρος	Τύπος	Περιγραφή
port	triport::port &	The 3-Wire Port the PWM output is connected to, written as Brain.ThreeWirePort.X or ExpanderName.X, where X is the port letter (for example, Brain.ThreeWirePort.A or Expander1.A).

Παράδειγμα

// Create the pwm_out instance on 3-Wire Port A
pwm_out pwm = pwm_out(Brain.ThreeWirePort.A);

Συναρτήσεις Μελών

The pwm_out class includes the following member functions:

• state — Sets the state of the PWM output.

Before calling any pwm_out member functions, a pwm_out instance must be created, as shown below:

/* This constructor is required when using VS Code.
PWM configuration is generated automatically
in VEXcode using the Device Menu. Replace the values
as needed. */

// Create the pwm_out instance on 3-Wire Port A
pwm_out pwm = pwm_out(Brain.ThreeWirePort.A);

state

Ορίζει την κατάσταση της εξόδου PWM σε μια καθορισμένη τιμή.

Available Functions

void state(
  int32_t      value,
  percentUnits units );

Parameters

Παράμετρος	Τύπος	Περιγραφή
value	int32_t	Η νέα τιμή που θα οριστεί για την έξοδο PWM, από -100 έως +100 τοις εκατό.
units	percentUnits	The unit used to represent the PWM value: percent / pct — percent

Return Values

Αυτή η συνάρτηση δεν επιστρέφει τιμή.

Notes

• Η τιμή εξόδου PWM κυμαίνεται από -100 έως +100 τοις εκατό.

• The only valid unit for PWM output is percent.

Examples

// Set the PWM Output to 50%
pwm.state(50, percent);

// Set the PWM Output to -75%
pwm.state(-75, percent);