I'm working on putting together a simple circuit to play audio clips from an SD card. I've decided to use an MSP430 (in part because of TI's decision to release the LaunchPad), in particular the F155. It has plenty of I/O and a built-in D-to-A, so all I would need is a small amplifier circuit on the output to drive a speaker.
Initially, I purchased an SD card slot from sparkfun and some QFP-64 breakout boards from eBay. I originally intended to use the serial bootloader, but I spent so much time debugging that setup, unsure if the MSP was even in working condition, I didn't get around to any actual programming/testing.
I've recently purchased TI's FET430 to simplify development. I was able to pull the F155 from the breakout board using a heat gun and do a basic "Hello World" (blinking LED) test using the FET to program it.
Code to use an SD card tends to be a tad bulky as far as embedded systems go, but I won't need write access, so that should trim things down a bit.
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