Tag Archives: ams

Sansa Fuze AMS reuse

Anythingbutipod.com published a Sansa Fuze disassembly today and allow me to offer a visual comparison of the SanDisk-branded main chips in the Sansa Fuze (top) compared to the one in the Sansa e280 v2 (bottom):

Sansa Fuze chip branded SanDisk

SanDisk marked chip, an AMS AS3525

And since we know the e200v2 one is an AS3525, there is little doubt that the Fuze one is as well. Of course we can confirm this for real once we get our hands on a firmware update file for the Fuze – I’m not aware of the existence of any yet at least.

So where does this put the Fuze Rockbox-wise? About at the same position all the other “Sansa v2 architecture” targets: we basically know the firmware file format, we have data sheet for the AS3525 but there aren’t any particular efforts going on and we don’t know if they have any means to recover from being flashed with a broken firmware!

Update: because some less intelligent people decided that facts I wrote in this article back in 2008 would still be the truth several years later, I urge you all you check the date for things your read on the internets. And in this particular case, Rockbox runs very good these days on several SanDisk players that use the AMS chipsets. See the http://www.rockbox.org/wiki/SansaAMS page for details

AMS Replied with the AS3525 Data Sheet

SanDisk Sansa Clip

AMS was very friendly and replied to my data sheet requesting email very rapidly, and now I have the data sheet for the AS3525 in my possession. This is good news for an upcoming porting effort to the SanDisk Sansa v2 series of players, but it doesn’t make it all perfectly easy since we still don’t know lots of stuff in them.

The reply even contained these warming words:

I see your initiative increasingly successful and I just read a good review on PC Magazine. My compliments, an outstanding job!

If you have one of these players (e200v2, c200v2, m200 v2 or Clip) and you feel like joining this effort, do jump in on the forum and we’ll get something going! I don’t personally have one of these targets, but I’m pondering on getting one…