From: Rafael Gomes Dantas <rafagd_at_gmail.com>
Date: Wed, 24 Oct 2007 21:14:59 +0000

On 10/24/07, Daniel Stenberg <daniel_at_rockbox.org> wrote:
> 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...

I'd would like to port rockbox to this "mp4" just because this is the
only one i have, and it is quite limited. The sound quality is very
good, but it's video format is very very lame... NXV video format is a
collection of RAW images with mp3-encoded sound...

A RMVB (20min/40mb) can easily turn into a 700mb monster...

> > 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
>
i would like to backup the current firmware in case that i want to
back to the normal firmware "mp4"... After all, this is the only that
i have... =(
Received on 2007-10-24