Bilder Upload
Follow Me!
#1

Waveshield

in Audio 09.07.2012 19:17
von Bojo
avatar

Hallo zusammen,
ich habe ein Problem mit dem Arduino Waveshield und dessen "playfile" funktion. Bei mir wird der Sound immer nur mit "playcomplete" abgespielt, aber ich möchte den Sound durch Taster unterbrechen und den nächsten abspielen lassen.

hier der code:

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
 

#include "WaveUtil.h"
#include "WaveHC.h"
#include <FatReader.h>
#include <SdReader.h>
#include <avr/pgmspace.h>
 

 
SdReader card; // This object holds the information for the card
FatVolume vol; // This holds the information for the partition on the card
FatReader root; // This holds the information for the filesystem on the card
FatReader f; // This holds the information for the file we're play
 
WaveHC wave; // This is the only wave (audio) object, since we will only play one at a time
 
#define DEBOUNCE 100 // button debouncer
 

int buttonSound = 6;
int buttonPhone = 7;
 

// this handy function will return the number of bytes currently free in RAM, great for debugging!
int freeRam(void)
{
extern int __bss_end;
extern int *__brkval;
int free_memory;
if((int)__brkval == 0) {
free_memory = ((int)&free_memory) - ((int)&__bss_end);
}
else {
free_memory = ((int)&free_memory) - ((int)__brkval);
}
return free_memory;
}
 
void sdErrorCheck(void)
{
if (!card.errorCode()) return;
putstring("\n\rSD I/O error: ");
Serial.print(card.errorCode(), HEX);
putstring(", ");
Serial.println(card.errorData(), HEX);
while(1);
}
 
void setup() {
// set up serial port
Serial.begin(9600);
putstring_nl("WaveHC with 2 buttons");

putstring("Free RAM: "); // This can help with debugging, running out of RAM is bad
Serial.println(freeRam()); // if this is under 150 bytes it may spell trouble!

// Set the output pins for the DAC control. This pins are defined in the library - wichtig, nicht aendern
//pinMode(9,INPUT);
pinMode(2, OUTPUT);
pinMode(3, OUTPUT);
pinMode(4, OUTPUT);
pinMode(5, OUTPUT);



pinMode(buttonSound, INPUT);

pinMode(buttonPhone, INPUT);


 

// enable pull-up resistors on switch pins (analog inputs) - die schnittstellen mit denen das board und das steckboard verbunden ist
digitalWrite(buttonSound, HIGH);
digitalWrite(buttonPhone, HIGH);

 


// if (!card.init(true)) { //play with 4 MHz spi if 8MHz isn't working for you
if (!card.init()) { //play with 8 MHz spi (default faster!)
putstring_nl("Card init. failed!"); // Something went wrong, lets print out why
sdErrorCheck();
while(1); // then 'halt' - do nothing!
}

// enable optimize read - some cards may timeout. Disable if you're having problems
card.partialBlockRead(true);

// Now we will look for a FAT partition!
uint8_t part;
for (part = 0; part < 5; part++) { // we have up to 5 slots to look in
if (vol.init(card, part))
break; // we found one, lets bail
}
if (part == 5) { // if we ended up not finding one :(
putstring_nl("No valid FAT partition!");
sdErrorCheck(); // Something went wrong, lets print out why
while(1); // then 'halt' - do nothing!
}

// Lets tell the user about what we found
putstring("Using partition ");
Serial.print(part, DEC);
putstring(", type is FAT");
Serial.println(vol.fatType(),DEC); // FAT16 or FAT32?

// Try to open the root directory
if (!root.openRoot(vol)) {
putstring_nl("Can't open root dir!"); // Something went wrong,
while(1); // then 'halt' - do nothing!
}

// Whew! We got past the tough parts.
putstring_nl("Ready!");
}
 

void loop() {

playfile("0.WAV");
 

switch (check_switches()) {
case 1:
wave.stop();
playcomplete("1.WAV");
break;
case 2:
wave.stop();
playcomplete("2.WAV");
break;


}
 

}

 
byte check_switches()
{
static byte previous[3];
static long time[3];
byte reading;
byte pressed;
byte index;
pressed = 0;
 
for (byte index = 0; index < 2; ++index) {
reading = digitalRead(6 + index);
if (reading == LOW && previous[index] == HIGH && millis() - time[index] > DEBOUNCE)
{
// switch pressed
time[index] = millis();
pressed = index + 1;
break;
}
previous[index] = reading;
}
// return switch number (1 - 6)
return (pressed);
}
 

// Plays a full file from beginning to end with no pause.
void playcomplete(char *name) {
// call our helper to find and play this name
playfile(name);
while (wave.isplaying) {
digitalWrite(ledSound, HIGH); //LED an
digitalWrite(ledPhone, HIGH); //LED an
}
// now its done playing
}
 
void playfile(char *name) {
// see if the wave object is currently doing something
if (wave.isplaying) {// already playing something, so stop it!
wave.stop(); // stop it
}
// look in the root directory and open the file
if (!f.open(root, name)) {
putstring("Couldn't open file "); Serial.print(name); return;
}
// OK read the file and turn it into a wave object
if (!wave.create(f)) {
putstring_nl("Not a valid WAV"); return;
}

// ok time to play! start playback
wave.play();
}
 

 
 

nach oben springen


Besucher
0 Mitglieder und 2 Gäste sind Online

Wir begrüßen unser neuestes Mitglied: hobbit23
Forum Statistiken
Das Forum hat 110 Themen und 181 Beiträge.

Xobor Forum Software von Xobor.de
Einfach ein Forum erstellen