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Permalink Responder até Weider Duarte em 6 junho 2014 at 14:19

Cara,

   Eu tive a um tempo um tipo de problema desses com um modulo mp3, e o problema era a formatação do cartão SD.

   Dai um brother me passou o programa SDFORMATTER V4.0.

   Eu usei o programa e resolveu.

   Não sei se é o seu caso, mas tenta ai, pela mensagem parece ser isso.

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Permalink Responder até Alex Sandro em 6 junho 2014 at 15:15

Formatei utilizando o programa, agora estou rodando o arquivo de exemplo que acompanha o shield.

o mesmo retorna o seguinte erro pela serial 

MP3 Testing
Error: Card init
Error: Volume ini
Error: Opening root
SCI_Mode (0x4800) = 0x4800
SCI_Status (0x48) = 0x48
VS Version (VS1053 is 4) = 4
SCI_ClockF = 0x0
SCI_ClockF = 0x6000
Failed to open track001.mp3
Failed to open track002.mp3
Failed to open track003.mp3
Failed to open track004.mp3
Failed to open track005.mp3
Failed to open track006.mp3
Failed to open track007.mp3
Failed to open track008.mp3
Failed to open track009.mp3
Failed to open track010.mp3
Failed to open track011.mp3
Failed to open track012.mp3
Failed to open track013.mp3
Failed to open track014.mp3
Failed to open track015.mp3
Failed to open track016.mp3
Failed to open track017.mp3
Failed to open track018.mp3
Failed to open track019.mp3
Failed to open track020.mp3
Failed to open track021.mp3
Failed to open track022.mp3
Failed to open track023.mp3
Failed to open track024.mp3
Failed to open track025.mp3
Failed to open track026.mp3
Failed to open track027.mp3
Failed to open track028.mp3
Failed to open track029.mp3
Failed to open track030.mp3
Failed to open track031.mp3
Failed to open track032.mp3
Failed to open track033.mp3
Failed to open track034.mp3
Failed to open track035.mp3
Failed to open track036.mp3
Failed to open track037.mp3
Failed to open track038.mp3
Failed to open track039.mp3
Failed to open track040.mp3
Failed to open track041.mp3
Failed to open track042.mp3
Failed to open track043.mp3
Failed to open track044.mp3
Failed to open track045.mp3
Failed to open track046.mp3
Failed to open track047.mp3
Failed to open track048.mp3
Failed to open track049.mp3
Failed to open track050.mp3
Failed to open track051.mp3
Failed to open track052.mp3
Failed to open track053.mp3
Failed to open track054.mp3
Failed to open track055.mp3
Failed to open track056.mp3
Failed to open track057.mp3
Failed to open track058.mp3
Failed to open track059.mp3
Failed to open track060.mp3
Failed to open track061.mp3
Failed to open track062.mp3
Failed to open track063.mp3
Failed to open track064.mp3
Failed to open track065.mp3
Failed to open track066.mp3
Failed to open track067.mp3
Failed to open track068.mp3
Failed to open track069.mp3
Failed to open track070.mp3
Failed to open track071.mp3
Failed to open track072.mp3
Failed to open track073.mp3
Failed to open track074.mp3
Failed to open track075.mp3
Failed to open track076.mp3
Failed to open track077.mp3
Failed to open track078.mp3
Failed to open track079.mp3
Failed to open track080.mp3
Failed to open track081.mp3
Failed to open track082.mp3
Failed to open track083.mp3
Failed to open track084.mp3
Failed to open track085.mp3
Failed to open track086.mp3
Failed to open track087.mp3
Failed to open track088.mp3
Failed to open track089.mp3
Failed to open track090.mp3
Failed to open track091.mp3
Failed to open track092.mp3
Failed to open track093.mp3
Failed to open track094.mp3
Failed to open track095.mp3
Failed to open track096.mp3
Failed to open track097.mp3
Failed to open track098.mp3
Failed to open track099.mp3
Failed to open track100.mp3
Whoa there cowboy!

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Permalink Responder até Weider Duarte em 6 junho 2014 at 15:41

Alex,

   Qual o modelo do mp3 shield que você tá utilizando ?   é que o modelo que eu usei, se não me engano tiny alguma coisa,  tem que colocar os arquivos no formato correto, com todas as caracteristicas corretas, senão não roda.

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Permalink Responder até Alex Sandro em 6 junho 2014 at 16:02

estou utilizando sparkfun mp3 shield mais me parece que o problema esta no acesso ao cartão de memoria.

quando eu uso os exemplos de acesso ao cartão recebo o seguinte erro 

Can't access SD card. Do not reformat.
No card, wrong chip select ]hüF_CPU = 16000000
Free RAM = 1020 Should be a base line of 1017, on ATmega328 when using INTx
Can't access SD card. Do not reformat.
No card, wrong chip select pin, or SPI problem?
SD errorCode: 0X1,0XFF

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Permalink Responder até Weider Duarte em 6 junho 2014 at 20:00

Olá Alessandro,

   Cara, realmente adoraria ajudar, mas não conheço o modulo da Sparkfun,  mesmo sabendo que tudo deles é de alta qualidade.

   O meu modulo era o WTV020 ( http://www.dx.com/p/wtv020-sd-micro-sd-card-mp3-game-player-voice-m... )  como pode ver,  super baratinho, e tem o mesmo resultado dos modulos caros,  com a vantagem que ele é minusculo.

   Se um dia comprar um deles e tiver duvidas, volte aqui, que podendo eu te ajudo.

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