Important changes to repositories hosted on mbed.com
Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.
To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.
It is also possible to export all your personal repositories from the account settings page.
Fork of mbed by
PwmOut.h
- Committer:
- simon.ford@mbed.co.uk
- Date:
- 2008-11-27
- Revision:
- 4:5d1359a283bc
- Parent:
- 1:6b7f447ca868
- Child:
- 5:62573be585e9
File content as of revision 4:5d1359a283bc:
/* mbed Microcontroller Library - PwmOut * Copyright (c) 2007-2008, sford */ #ifndef MBED_PWMOUT_H #define MBED_PWMOUT_H #include "Base.h" namespace mbed { /* Class: PwmOut * A pulse-width modulation digital output */ class PwmOut : public Base { public: /* Group: Configuration Methods */ /* Constructor: PwmOut * Create a PwmOut connected to the specified pin * * Variables: * pin - PwmOut pin to connect to (21-26) */ PwmOut(int pin, const char *name = NULL); /* Group: Access Methods (Analog-like) */ /* Function: write * Set the ouput duty-cycle, specified as a percentage (float) * * Variables: * percent - A floating-point value representing the output duty-cycle, * specified as a percentage. The value should lie between * 0.0f (representing 0v / on 0%) and 1.0f (representing 3.3v / on 100%). * Values outside this range will be saturated to 0.0f or 1.0f. */ void write(float percent); /* Function: write_v * Set the output duty-cycle, specified in volts (float) * * Variables: * v - A floating-point value representing the output duty-cycle, * specified in volts. The value should lie between * 0.0f (representing 0v / 0% on) and 3.3f (representing 3.3v / 100% on). * Values outside this range will be saturated to 0.0f or 3.3f. */ void write_v(float v); /* Function: write_mv * Set the output duty-cycle, specified in mili-volts (int) * * Variables: * mv - An integer value representing the output duty-cycle, * specified in milli-volts. The value should lie between * 0 (representing 0v / 0% on) and 3300 (representing 3.3v / 100% on). * Values outside this range will be saturated to 0 or 3300. */ void write_mv(int mv); /* Function: read * Return the current output duty-cycle setting, measured as a percentage (float) * * Variables: * returns - A floating-point value representing the current duty-cycle being output on the pin, * measured as a percentage. The returned value will lie between * 0.0f (representing 0v / 0% on) and 1.0f (representing 3.3v / 100% on). * * Note: * This value may not match exactly the value set by a previous <write>. */ float read(); /* Group: Access Methods (Pulse-width) */ /* Function: period * Set the PWM period, specified in seconds (float) * * Note: * This is common to all PwmOut's, so changing it on one will change them all */ void period(float seconds); /* Function: pulsewidth * Set the PWM pulsewidth, specified in seconds (float) */ void pulsewidth(float seconds); /* Function: period_ms * Set the PWM period, specified in milli-seconds (int) * * Note: * This is common to all PwmOut's, so changing it on one will change them all */ void period_ms(int ms); /* Function: pulsewidth_ms * Set the PWM pulsewidth, specified in milli-seconds (int) */ void pulsewidth_ms(int ms); /* Function: period_us * Set the PWM period, specified in micro-seconds (int) * * Note: * This is common to all PwmOut's, so changing it on one will change them all */ void period_us(int us); /* Function: pulsewidth_us * Set the PWM pulsewidth, specified in micro-seconds (int) */ void pulsewidth_us(int us); /* Group: Access Method Shorthand */ /* Function: operator= * A shorthand for <write> */ PwmOut& operator= (float percent); PwmOut& operator= (PwmOut& rhs); /* Function: operator float() * A shorthand for <read> */ operator float(); virtual const struct rpc_method *rpc_methods(); protected: int _id; }; } #endif