I own a RD1071 RCA LYRA MP3 player. I was wondering if anyone knew what programming language it uses. The main chip is the STMP3410. It handles everything good. I can update the device with new firmware and I would like to change it a little.

The update files are here if anyone has a decompiler for many languages. Uninstalling it is clean.
http://www.rca.com/content/viewdetail/1%2C%2CEI700528%2C00.html

not much you can do with it, maybe if you want to dump the bios, you could learn the USB protocol, but other than that not much to do.

what are you trying to accomplish?

i was trying to learn about firmware a couple weeks ago b/c i wantd to hack my router. i found that most firmware is just plain ol C..

Anyone recommend a free compiler/decompiler? Any size, I have DSL. What I am trying to do is fix a few errors/glitches with the playback. It really is an excellent MP3 player, but it shows DOS-type file names and skips a tenth of a second or so of playback.

All I need is something to read the update files. If it gets corrupted or has a new update it erases the BIOS fully and reinstalls.

Try OLLYDBG (google it to find a download) its a good quality free debugger/disassembler (decompilers do not exsist).

Goodluck.

Every file that is put into the device is like this. Hex and the letter s make up everything. I did try OLLYDBG and Source Edit but nothing makes code out of this. It was made with something...

S0030001FB
S106FFE8181800E2
S0030001FB
S106FFE9181800E1
S0030004F8
S109000080F00A8D0000EF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S121019800E00180F00BA001000C00000C000028700B16FA000C00000B0000A2F00ACA
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