Lab 1 Program C
Fork of mbed by
AnalogOut.h
- Committer:
- simon.ford@mbed.co.uk
- Date:
- 2009-01-22
- Revision:
- 5:62573be585e9
- Parent:
- 4:5d1359a283bc
- Child:
- 11:1c1ebd0324fa
File content as of revision 5:62573be585e9:
/* mbed Microcontroller Library - AnalogOut * Copyright (c) 2006-2009 ARM Limited. All rights reserved. * sford */ #ifndef MBED_ANALOGOUT_H #define MBED_ANALOGOUT_H #include "Base.h" namespace mbed { /* Class: AnalogOut * An analog output, used for setting the voltage on a pin */ class AnalogOut : public Base { public: /* Constructor: AnalogOut * Create an AnalogOut connected to the specified pin * * Variables: * pin - AnalogOut pin to connect to (18) */ AnalogOut(int pin, const char *name = NULL); /* Function: write * Set the output voltage, specified as a percentage (float) * * Variables: * percent - A floating-point value representing the output voltage, * specified as a percentage. The value should lie between * 0.0f (representing 0v / 0%) and 1.0f (representing 3.3v / 100%). * Values outside this range will be saturated to 0.0f or 1.0f. */ void write(float percent); /* Function: write_u16 * Set the output voltage, represented as an unsigned short in the range [0x0, 0xFFFF] * * Variables: * value - 16-bit unsigned short representing the output voltage, * normalised to a 16-bit value (0x0000 = 0v, 0xFFFF = 3.3v) */ void write_u16(unsigned short value); void write_v(float v); void write_mv(int mv); /* Function: read * Return the current output voltage setting, measured as a percentage (float) * * Variables: * returns - A floating-point value representing the current voltage being output on the pin, * measured as a percentage. The returned value will lie between * 0.0f (representing 0v / 0%) and 1.0f (representing 3.3v / 100%). * * Note: * This value may not match exactly the value set by a previous <write>. */ float read(); /* Function: operator= * An operator shorthand for <write()> */ AnalogOut& operator= (float percent); AnalogOut& operator= (AnalogOut& rhs); /* Function: operator float() * An operator shorthand for <read()> */ operator float(); virtual const struct rpc_method *get_rpc_methods(); static struct rpc_class *get_rpc_class(); }; } #endif