robotsound.c File Reference

Contains the sound routines. More...

#include "robotsound.h"

Go to the source code of this file.

Functions
void	play (u16 Hz)
	Plays a tone in Herz The tone in Herz. 0-17 for switching off.
void	playt (u08 tone)
	Plays a tone described in start_sound(u08 *soundtostart, u08 override).
int	playi ()
	This function is called from SIGNAL(SIG_OVERFLOW0).
int	start_sound (u08 *soundtostart, u08 override)
	With this function you can enable a sound (melodie). The sound bites are in program memory and have the following structure:.
Variables
u08 __ATTR_PROGMEM__	beeps []
u08 __ATTR_PROGMEM__	start_up [] = {5,42, 3,54, 10,0, 0,0}
u08 __ATTR_PROGMEM__	go_sleep [] = {3,70, 3,60, 3,50, 3,40, 3,30, 3,20, 0,0}
u08 __ATTR_PROGMEM__	wake_up [] = {3,20, 3,30, 3,40, 3,50, 3,60, 3,70, 0,0}
u08 __ATTR_PROGMEM__	go_hungry [] = {20,36, 20,48, 20,36, 20,48, 0,0}
u08 __ATTR_PROGMEM__	go_empty [] = {10,49, 255,0, 10,49, 255,0, 10,49, 0,0}
u08 __ATTR_PROGMEM__	snore [] = {50,1, 40,0, 0,0}
u08 __ATTR_PROGMEM__	get_connected [] = {1,20, 50,85, 50,86, 10,70, 0,0}
u16 __ATTR_PROGMEM__	tones []
u08 *	act_sound
s16	s_ticks

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Detailed Description

Contains the sound routines.

This file is for using the "sound system".

The speaker is at Pin 17 and uses the Timer2. Possible frequencies are from 18Hz to about 50kHz, but the high frequencies don't have a good quantisation. The tone is always a square wave.

Definition in file robotsound.c.

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Function Documentation

void play (  u16  Hz  )

Plays a tone in Herz The tone in Herz. 0-17 for switching off. This function should not be invoced directly (just for testing purposes) because it overrides the normal sound and doesn't stop brawling. Parameters: Hz  Definition at line 32 of file robotsound.c. Referenced by playt().

void playi (   )

This function is called from SIGNAL(SIG_OVERFLOW0). Here the sound is playied. It is called every 16,3ms which is the fastest Tick in a sound. Definition at line 78 of file robotsound.c. Referenced by SIGNAL().

void start_sound (  u08 *  soundtostart, u08  override )

With this function you can enable a sound (melodie). The sound bites are in program memory and have the following structure:. [ticks, tone],[ticks,tone],...[0, 0]. One tick is about 16ms and by setting tone to 0 you can make a pause. The tones start at a C [33Hz] and go up 7 octaves. tone = 60 is the standart pitch 440Hz max is 83. a value of 85 plaies rising tones. and 86 does the same downwards. Parameters: soundtostart  A pointer to the sound which is ended by 0,0 override  Set this to one if the sound should replace a playing sound. Definition at line 95 of file robotsound.c. Referenced by do_boredom(), do_sleep(), and main().

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Variable Documentation

u08 __ATTR_PROGMEM__ beeps[]

Initial value: {5,40, 10,0, 5,40, 10,0, 5,40, 10,0, 5,40, 10,0, 5,40, 10,0, 5,40, 10,0, 5,40, 10,0, 5,40, 10,0, 5,40, 10,0, 5,40, 40,0, 0,0} Definition at line 11 of file robotsound.c.

u16 __ATTR_PROGMEM__ tones[]

Initial value: { 0, 33, 35, 37, 39, 41, 44, 46, 49, 52, 55, 58, 62, 65, 69, 73, 78, 82, 87, 92, 98, 104, 110, 117, 123, 131, 139, 147, 156, 164, 175, 185, 196, 208, 220, 233, 247, 262, 277, 294, 311, 330, 349, 370, 392, 415, 440, 466, 494, 523, 554, 587, 622, 659, 698, 740, 784, 831, 880, 932, 988, 1047, 1109, 1175, 1245, 1319, 1397, 1480, 1568, 1661, 1760, 1865, 1976, 2093, 2217, 2349, 2489, 2637, 2794, 2960, 3136, 3322, 3520, 3729, 3951} Definition at line 20 of file robotsound.c.

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