Lab 1 Program C
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Diff: AnalogOut.h
- Revision:
- 11:1c1ebd0324fa
- Parent:
- 5:62573be585e9
- Child:
- 27:7110ebee3484
--- a/AnalogOut.h Thu May 14 14:44:00 2009 +0000 +++ b/AnalogOut.h Fri Aug 28 12:10:11 2009 +0000 @@ -6,12 +6,31 @@ #ifndef MBED_ANALOGOUT_H #define MBED_ANALOGOUT_H +#include "platform.h" +#include "PinNames.h" +#include "PeripheralNames.h" #include "Base.h" namespace mbed { /* Class: AnalogOut * An analog output, used for setting the voltage on a pin + * + * Example: + * > // Make a sawtooth output + * > + * > #include "mbed.h" + * > + * > AnalogOut tri(p18); + * > int main() { + * > while(1) { + * > tri = tri + 0.01; + * > wait_us(1); + * > if(tri == 1) { + * > tri = 0; + * > } + * > } + * > } */ class AnalogOut : public Base { @@ -23,18 +42,18 @@ * Variables: * pin - AnalogOut pin to connect to (18) */ - AnalogOut(int pin, const char *name = NULL); + AnalogOut(PinName 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 + * 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 value); /* Function: write_u16 * Set the output voltage, represented as an unsigned short in the range [0x0, 0xFFFF] @@ -45,22 +64,21 @@ */ 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) + * 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>. - */ + * 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(); + +#ifdef MBED_OPERATORS /* Function: operator= * An operator shorthand for <write()> */ @@ -68,16 +86,23 @@ AnalogOut& operator= (AnalogOut& rhs); /* Function: operator float() - * An operator shorthand for <read()> - */ + * An operator shorthand for <read()> + */ operator float(); +#endif +#ifdef MBED_RPC virtual const struct rpc_method *get_rpc_methods(); static struct rpc_class *get_rpc_class(); +#endif + +protected: + + DACName _dac; }; -} +} // namespace mbed #endif