SONY NWZ E43x (E435/E436/E438)

[nls]

the k4x56163PI chip is sdram
http://www.samsung.com/global/system/business/semiconductor/product/2007/11/13/236652ds_k4x56163pi.pdf

k9hcg08u is NAND flash, couldn't find a datasheet for it in a quick search.

stmp3570 is a sigmatel SoC for which i couldn't find any datasheet either i found some info on a stmp3560
which seems to be a very integrated SoC that unfortunately is built around some kind of DSP, figuring out what's inside the stmp3570 should be the first thing to decide if a port is feasible at all.

[skaos]

Are you sure it's a stmp3570, and not a stmp3750? Google only find two references to the first, and several to the latter. Also, the stmp3500 series SoC is quite old, whereas stmp37xx is current.

[agdurrette]

Here is what I found

k4x56163pi
http://www.samsung.com/global/system/business/semiconductor/product/2007/11/13/236652ds_k4x56163pi.pdf

[saratoga]

The stmp3570 is a 24 bit DSP, so you won't be able to port Rockbox to any players using it.

[agdurrette]

I guess thats the end of this I was kinda looking forward to try to make a port for it.

[Chronon]

The stmp3570 is a 24 bit DSP, so you won't be able to port Rockbox to any players using it.

Couldn't you change the resampler to convert to 24 bit instead of 16 bit?

[saratoga]

The stmp3570 is a 24 bit DSP, so you won't be able to port Rockbox to any players using it.

Couldn't you change the resampler to convert to 24 bit instead of 16 bit?

I mean the actual device is a 24 Digital Signal Processor.  Rockbox is quite firmly wedded to 32/64 bit cores.  Running on a 24 bit processor would be very difficult.

[Chronon]

Ah.  I see.

[caseyo]

Are you sure it's a stmp3570, and not a stmp3750? Google only find two references to the first, and several to the latter. Also, the stmp3500 series SoC is quite old, whereas stmp37xx is current.

Your right, it's an STMP3750 Damn dyslexia

[Wanderer.ilgiz]

Where I can find datasheet for STMP3750?And what a display is used in this player?  I see the following mark D200DN3A80819R0 but i can't find datasheet.