Key Class Reference

#include <key.h>

Collaboration diagram for Key:

Public Member Functions
	Key ()
uint32_t	check (void)

Data Fields
uint32_t	id
uint32_t	state
uint32_t	count
float	pitch
Voice *	voice

Detailed Description

Representation of a key on the keyboard. Handles keyboard scanning and voice assignment.

Definition at line 11 of file key.h.

Constructor & Destructor Documentation

Key::Key ( )

inline

Definition at line 35 of file key.h.

Member Function Documentation

uint32_t Key::check

(

void

)

Capacitively checks to see if this key is being touched.

Returns

RC charge time, in arbitrary units

Definition at line 8 of file key.cpp.

Here is the call graph for this function:

Field Documentation

uint32_t Key::count

This counter is used for hysteresis (debouncing).

Definition at line 24 of file key.h.

Referenced by check().

uint32_t Key::id

A numerical index of this key, used to address it in the analog mux array.

Definition at line 16 of file key.h.

Referenced by setup().

float Key::pitch

This is actually a frequency, not a pitch.

Todo:

Replace this with a pointer to a Pitch instance. (Need a Pitch class.)

Definition at line 29 of file key.h.

Referenced by check(), and setup().

uint32_t Key::state

1 if the key is touched, 0 otherwise.

Definition at line 20 of file key.h.

Referenced by check().

Voice* Key::voice

The voice being used to sound this key.

Todo:

Move this pointer to the Pitch class, when it exists.

Definition at line 34 of file key.h.

Referenced by check().

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The documentation for this class was generated from the following files:

• nextstage/teensy/key.h
• nextstage/teensy/key.cpp