Play once per button press without repeating while holding button down

Gabrielroto

I would like to be able to play a sound file only once whether I hold in the button or not. The user should have to let go of the button and press it again to play the sound file again. That is, I don't want the sound file to repeat if I hold the button down. Any suggestions would be greatly appreciated.
Code snippet:

mp3 VAR Byte 'mp3 file number
mp3bit0 VAR mp3.BIT0 'mp3 bit 0
mp3bit1 VAR mp3.BIT1 'mp3 bit 1
mp3bit2 VAR mp3.BIT2 'mp3 bit 2
mp3bit3 VAR mp3.BIT3 'mp3 bit 3
mp3bit4 VAR mp3.BIT4 'mp3 bit 4
mp3bit5 VAR mp3.BIT5 'mp3 bit 5
mp3bit6 VAR mp3.BIT6 'mp3 bit 6
mp3bit7 VAR mp3.BIT7 'mp3 bit 7

main:

DEBUG? mp3,CR
AUXIO
IF IN15 = 0 THEN
mp3 = 1
GOTO playMP3
ELSEIF IN14 = 0 THEN
mp3 = 2
GOTO playMP3
ELSEIF IN13 = 0 THEN
mp3 = 3
GOTO playMP3
ELSEIF IN12 = 0 THEN
mp3 = 4
GOTO playMP3
ELSEIF IN11 = 0 THEN
mp3 = 5
GOTO playMP3
ELSEIF IN10 = 0 THEN
mp3 = 6
GOTO playMP3
ELSEIF IN9 = 0 THEN
mp3 = 7
GOTO playMP3
ELSEIF IN8 = 0 THEN
mp3 = 8
GOTO playMP3
ELSEIF IN7 = 0 THEN
mp3 = 9
GOTO playMP3
ELSEIF IN6 = 0 THEN
mp3 = 10
GOTO playMP3


ENDIF
GOTO main

playMP3:
MAINIO
OUT0 = mp3bit0 'separate mp3 file name into 7 bits
OUT1 = mp3bit1
OUT2 = mp3bit2
OUT3 = mp3bit3
OUT4 = mp3bit4
OUT5 = mp3bit5
OUT6 = mp3bit6
OUT7 = 0
PAUSE 250 'short mp3 player T8 for at least 50ms
OUT7 = 1
GOTO main

Post Edited (Gabrielroto) : 3/25/2009 4:54:49 PM GMT

Mike Green

1) You need to provide a subject for your thread. You can add one by using the pencil icon in the upper right hand corner of your first message in the thread.

2) To do what you want, you have to first wait for all buttons to be released, then wait for a button to be pressed. This is called a "state machine" ... look up a description on the Wikipedia.

Gabrielroto

That's a great idea! I'm familiar with state machines. Thanks for the advice!