On Wed, 24 Oct 2007, Rafael Gomes Dantas wrote:

> 1. There is any port to Satellitint m118 (Nexia NX5850 chipset)?

Nope. But really, this chipset is not very fun to work with. I found a
datasheet here => http://www.epform.com/Downloads/NX5850_datasheetV0.5.pdf

It has MP3 and WMA decoders in hardware and it has a 8051-compatible 8bit cpu
core. The decoder parts could probably be supported, but the 8051 is a major
pain as you won't find a suitable gcc port for it (and the Rockbox internals
are not written to suit a 8 bit CPU like a 8051).

In my view, it'll bit a pain to port rockbox to it. Still possible, but a lot
of work. And then the port won't be able to do a lot else than MP3 and WMA due
to the very underpowered CPU...

> 2. Do you use any program to extract the original firmware for backup?

We mostly write our own tools for the targets we work with. There's no general
tool for this, it all depends on the hardware and how the particular player
works.

If you really want to do this, continue your venture here:

         http://www.rockbox.org/wiki/NewPort

-- 
  Daniel Stenberg -- http://www.rockbox.org/ -- http://daniel.haxx.se/