Audio Using LPC1768 (Cortex M3)

There are very many examples on the interwebs of reading/writing from/to SD Cards using microcontrollers.

Start there.

Once you've got the data from the card, you will need to understand the file format.

You will also need to research how to play audio - again, many examples available.

Finally, you will need to bring it all together ...

There are very many examples on the interwebs of reading/writing from/to SD Cards using microcontrollers.

Start there.

Once you've got the data from the card, you will need to understand the file format.

You will also need to research how to play audio - again, many examples available.

Finally, you will need to bring it all together ...

Thanks Andy,
I found an example for Read / Write from to SD card. what did i not understand he used the libraries of SPI and also used UART in the code, I don't understand why we need UART if the data were transferred via SPI !

Me neither :-) Ask the author.

So you need to look into it to see what, exactly, the UART is being used for.

We have no idea what example you're talking about - so can't comment. As 42Bastian Schick said, you would have to ask the author for specific details ...

However, it is always very useful to have a UART available for diagnostic / status / debug / trace outputs; sometimes also for configuration & control ...