Rockbox.org home
Downloads
Release release
Dev builds dev builds
Extras extras
themes themes
Documentation
Manual manual
Wiki wiki
Device Status device status
Support
Forums forums
Mailing lists mailing lists
IRC IRC
Development
Bugs bugs
Patches patches
Dev Guide dev guide
Search



Donate

Rockbox Technical Forums


Login with username, password and session length
Home Help Search Staff List Login Register
News:

Welcome to the Rockbox Technical Forums!

+  Rockbox Technical Forums
|-+  Support and General Use
| |-+  Hardware
| | |-+  Sansa clip Deets/spec sheet
« previous next »
  • Print
Pages: [1]

Author Topic: Sansa clip Deets/spec sheet  (Read 2726 times)

Offline Jason Arthur Taylor

  • Member
  • *
  • Posts: 39
  • Now: Sansa clip zip. Exes: over 20
Sansa clip Deets/spec sheet
« on: December 28, 2009, 07:15:08 PM »
What do we got under the hood on this thing.  What I'd like is for someone to tell me what each of the chips @

http://www.anythingbutipod.com/archives/images/sansa-clip-disassembled/sandisk-sansa-clip-disassembled-13.jpg

or

http://farm3.static.flickr.com/2007/2454810479_6512b27dbd.jpg?v=0

are. 

So far, as best I can guess, it runs at 62 mhz, but is that adjustable to 240 MHz or so.  If so, it would be nice to let the user change the cpu speed for when he or she is simultaneously playing a game and playing some file.  I am guessing it has 380kb of ram.  Wild guesses.  Someone please chime and and tell me my guesses suck.


Question on the power.  I’d like to get power while running Rockbox.  There are two types of power.  One has data as well.  I can see good reason for the data power (all 4 usb pins) to activate Sansa firmware mode, but not the power-only power, which should keep the Sansa in Rockbox mode, so you can play a game while charging the battery.  What would I need to do to get such a this feature working?

Q on battery.  Ever since I installed Rockbox on my Sansa clip, it only charges for about 1 minute before the screen indicates it is fully charged.  As soon as I unplug it, the full charge changes to near empty in about 1 minutes.  Is it possible that rockbox messed up some part of the battery charging circuitry?  Or is it possible that the blue wire has come loose?   The blue wire supposedly tells the Sansa clip the battery temperature. So perhaps it prevents charging because it thinks the battery is too hot?  If that is what the blue wire does what would I need to do to write a thermostat weather app plugin so I know the temperature? 

WOULD BE SOOO COOL to see time and temp on this baby.

One last thing.  What would I need to do to port rockbox to the sansa clip+?  So it has different hardware.  How so?  What specifically would be required to make the port work?
« Last Edit: December 28, 2009, 07:19:46 PM by Jason Taylor »
Logged
http://twitter.com/jasontaylor7

Offline saratoga

  • Developer
  • Member
  • *
  • Posts: 8974
Re: Sansa clip Deets/spec sheet
« Reply #1 on: December 28, 2009, 07:45:48 PM »
Please at least make an attempt to look for answers before asking.  All that we know about the hardware is here:

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

or in the source code.  Read it before asking.

Also, the charging thing is covered in the manual.
Logged

  • Print
Pages: [1]
« previous next »
+  Rockbox Technical Forums
|-+  Support and General Use
| |-+  Hardware
| | |-+  Sansa clip Deets/spec sheet
 

  • SMF 2.0.17 | SMF © 2019, Simple Machines
  • Rockbox Privacy Policy
  • XHTML
  • RSS
  • WAP2

Page created in 0.065 seconds with 15 queries.