Cannot get wav_play to work in it's own COG?
GeeksGoneBad
Posts: 100
hey guys I am trying to control a few servos, steppers, and play a wav file from the SD card - everything works except for the playing of the wav file - it will work if I don't try to run it in it's own COG but then I have to wait for all the audio to play until the motors start working and that's not good 
any ideas? Here's my code so far.... Initially I had all of the wav playing stuff in the "PlayAudio" function but that didn't work either
any ideas? Here's my code so far.... Initially I had all of the wav playing stuff in the "PlayAudio" function but that didn't work either
#include "simpletools.h"
#include "servo.h"
#include "wavplayer.h"
void nodHead();
void moveEyes();
void turnHead();
void openCloseJaw();
void PlayAudio();
void lookLeft();
void lookRight();
void lookStraight();
unsigned int stack1[65];
unsigned int stack2[65];
unsigned int stack3[85];
unsigned int stack4[65];
const char zombie[] = {"zombie.wav"};
int main()
{
int DO = 22, CLK = 23, DI = 24, CS = 25;
sd_mount(DO, CLK, DI, CS);
cogstart(&moveEyes, NULL, stack1, sizeof(stack1));
cogstart(&PlayAudio, NULL, stack3, sizeof(stack3));
cogstart(&openCloseJaw, NULL, stack2, sizeof(stack2));
cogstart(&nodHead, NULL, stack4, sizeof(stack4));
//pause(5000);
//cogstart(&openCloseJaw, NULL, stack1, sizeof(stack1));
//pause(6000);
//servo_stop();
pause(6000);
};
void moveEyes()
{
lookStraight();
servo_setramp(1, 5);
lookLeft();
pause(4000);
lookRight();
pause(4000);
lookStraight();
}
void nodHead()
{
for(int a = 0; a < 5000; a++)
{
high(0);
pause(1);
low(0);
pause(1);
}
}
void turnHead()
{
for(int a = 0; a < 2300; a++)
{
high(3);
pause(1);
low(3);
pause(1);
}
}
void lookLeft()
{
servo_angle(1, 0);
}
void lookRight()
{
servo_angle(1, 900);
}
void lookStraight()
{
servo_angle(1, 450);
}
void openCloseJaw()
{
servo_angle(2, 900);
servo_setramp(2, 10);
servo_angle(2, 550);
pause(1000);
servo_angle(2, 900);
}
void PlayAudio()
{
wav_volume(10);
wav_play(zombie);
pause(3500);
wav_stop();
}
Comments
unfortunately I don't think it's completely related to the sound at all - I moved all of the SD card stuff back into the function and initially it didn't work and then I took out a few things to see what the problem might be and the sound will run in a COG but it doesn't seem to want to if I have 4 things running already - further investigation shows that I can get about three things to run and the forth does not - but what's weird is sometimes the fifth one will
I'm going to try and combine some of the effects and hopefully I can end up with three COGs that all work
I will post back success or failure!
Jamie
now I can get nearly everything to work by combining a few things into functions - but in my "talking" function the wav file plays the first time I call it - but not the second - the servo moves so I know it's going through the function - but the wav does not play
close
#include "simpletools.h" #include "servo.h" #include "wavplayer.h" void moveEyes(); void moveHead(); void talking(); void biting(); unsigned int stack1[75]; unsigned int stack2[75]; unsigned int stack3[75]; unsigned int stack4[75]; const char zombie[] = {"brains.wav"}; int DO = 22, CLK = 23, DI = 24, CS = 25; int main() { sd_mount(DO, CLK, DI, CS); cogstart(&talking, NULL, stack1, sizeof(stack1)); cogstart(&moveHead, NULL, stack2, sizeof(stack2)); pause(100); cogstart(&moveEyes, NULL, stack3, sizeof(stack3)); pause(5000); biting(); pause(4000); cogstart(&talking, NULL, stack4, sizeof(stack4)); pause(5000); biting(); pause(5000); biting(); pause(16000); servo_stop(); }; void moveEyes() { servo_angle(12, 450); // Look Straight servo_setramp(12, 10); // Slow Look servo_angle(12, 0); // Look Left pause(4000); servo_angle(12, 900); // Look Right pause(4000); servo_angle(12, 450); // Look Straight pause(4000); servo_setramp(12, 200); // Quick Look servo_angle(12, 900); // Look Right pause(2000); servo_setramp(12, 10); // Slow Look servo_angle(12, 450); // Look Straight pause(2000); servo_setramp(12, 200); // Quick Look servo_angle(12, 900); // Look Right pause(2000); servo_setramp(12, 10); // Slow Look servo_angle(12, 0); // Look Left pause(4000); servo_setramp(12, 200); // Quick Look servo_angle(12, 450); // Look Straight } void moveHead() { for(int a = 0; a < 760 * 1.5; a++) { high(0); high(1); pause(10); low(0); low(1); pause(10); } } void talking() { servo_angle(13, 900); servo_setramp(13, 10); servo_angle(13, 550); wav_volume(10); wav_play(zombie); pause(3000); wav_stop(); servo_angle(13, 900); } void biting() { servo_angle(13, 900); servo_setramp(13, 20); servo_angle(13, 650); pause(300); servo_angle(13, 900); pause(300); servo_angle(13, 650); pause(300); servo_angle(13, 900); pause(300); servo_angle(13, 650); pause(300); servo_angle(13, 900); }The cogstart function does not attempt to stop a cog. It returns a cogid though, and you can use that to stop the previously started cog before starting a new one.
Great
Any chance of posting your latest code?
Regards,
Brian (BTL24)
#include "simpletools.h" #include "servo.h" #include "wavplayer.h" void moveEyes(); void moveHead(); void talking(); void biting(); unsigned int stack1[75]; unsigned int stack2[75]; unsigned int stack3[75]; const char zombie[] = {"brains.wav"}; int DO = 22, CLK = 23, DI = 24, CS = 25; int main() { sd_mount(DO, CLK, DI, CS); int talkingCog = cogstart(&talking, NULL, stack1, sizeof(stack1)); cogstart(&moveHead, NULL, stack2, sizeof(stack2)); pause(100); cogstart(&moveEyes, NULL, stack3, sizeof(stack3)); pause(5000); cogstop(talkingCog); biting(); pause(4000); cogstart(&talking, NULL, stack1, sizeof(stack1)); pause(5000); biting(); pause(5000); biting(); pause(16000); servo_stop(); }; void moveEyes() { servo_angle(12, 450); // Look Straight servo_setramp(12, 10); // Slow Look servo_angle(12, 0); // Look Left pause(4000); servo_angle(12, 900); // Look Right pause(4000); servo_angle(12, 450); // Look Straight pause(4000); servo_setramp(12, 200); // Quick Look servo_angle(12, 900); // Look Right pause(2000); servo_setramp(12, 10); // Slow Look servo_angle(12, 450); // Look Straight pause(2000); servo_setramp(12, 200); // Quick Look servo_angle(12, 900); // Look Right pause(2000); servo_setramp(12, 10); // Slow Look servo_angle(12, 0); // Look Left pause(4000); servo_setramp(12, 200); // Quick Look servo_angle(12, 450); // Look Straight } void moveHead() { for(int a = 0; a < 760 * 1.5; a++) { high(0); high(10); pause(10); low(0); low(10); pause(10); } } void talking() { servo_angle(13, 900); servo_setramp(13, 10); servo_angle(13, 550); wav_volume(10); wav_play(zombie); pause(3000); wav_stop(); servo_angle(13, 900); } void biting() { servo_angle(13, 900); servo_setramp(13, 20); servo_angle(13, 650); pause(300); servo_angle(13, 900); pause(300); servo_angle(13, 650); pause(300); servo_angle(13, 900); pause(300); servo_angle(13, 650); pause(300); servo_angle(13, 900); }I see how you stop the talking function by using talkingCog variable that lets you know which cog is playing wav file.
I will try your structure in my code and see if I can get my wav file to play indefinitely....
Thanks again.
Brian (BTL24)