SmartWAV2-Datasheet_R4

SMARTWAV 2

Datasheet

3.8- Monophonic Stand-Alone Mode 7 - Music Player: This is the most

common mode for most music playing related devices, in this mode

a host controller is not required, SmartWAV 2 uses P/P(play/pause),

NXT(next/fast forward(hold)), BCK(rewind, fast backward(hold)),

STP(stop) and Loop inputs to trigger single monophonic audio tracks,

this allow to create a complete mp3 like music playing device. Be sure

that the .wav files to be triggered exist in the root path of the inserted

microSD card.

Track management in this mode is divided in 3 working manners, the

this is automatically selected at the power-on / initialization state of

the processor based on the next:

-First: the processor looks for the file named “tracks.txt” (refer to section

3.9- The “Tracks.txt” File), if this file exists and can be read, the first track

name “*.wav” file obtained from the tracks file will be mounted and

ready to play. Consecutive mounted tracks will be obtained from this

same “tracks.txt” file.

-Second: If the “tracks.txt” file doesn’t exist, the processor then will look

for the numbered file “0.wav” (zero.wav), if the track exists, it will be

mounted and ready to play. Consecutive mounted tracks will be

numbered files from “0.wav” (zero.wav) up to “999.wav” (nine

hundred and ninety-nine.wav).

-Third: If the “tracks.txt” file doesn’t exist, neither the numbered file

“0.wav” (zero.wav) couldn’t be found, then the processor will

randomly look for “*.wav” files, the first found file will be mounted and

ready to play. Consecutive tracks will be randomly “*.wav” files

searched and mounted.