rockbox

History

Thomas Martitz f6540e800d Sansa Fuzev2: Add mkamsboot and dualboot support. The bootloader doesn't work, but pressing \|<< or inserting USB to boot the OF does. It should be pretty safe to run test code on it now. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@24924 a1c6a512-1295-4272-9138-f99709370657		2010-02-26 13:55:17 +00:00
..
dualboot	Sansa Fuzev2: Add mkamsboot and dualboot support. The bootloader doesn't work, but pressing \|<< or inserting USB to boot the OF does.	2010-02-26 13:55:17 +00:00
dualboot.c	Sansa Fuzev2: Add mkamsboot and dualboot support. The bootloader doesn't work, but pressing \|<< or inserting USB to boot the OF does.	2010-02-26 13:55:17 +00:00
dualboot.h	Sansa Fuzev2: Add mkamsboot and dualboot support. The bootloader doesn't work, but pressing \|<< or inserting USB to boot the OF does.	2010-02-26 13:55:17 +00:00
main.c	mkamsboot: prevents 2 potential problems	2010-02-19 14:10:26 +00:00
Makefile	mkamsboot: make sure files depending on dualboot.h are updated	2010-02-25 18:08:16 +00:00
md5.c	FS#10253 : mkamsboot v1.0	2009-05-28 18:27:08 +00:00
md5.h	Add MD5 checksumming of the original firmware images - for extra safety, and also because some Fuze firmwares have the same ID (or what we thought was the ID) as the M200 firmwares. Plus a few minor cleanups.	2008-10-30 00:13:29 +00:00
mkamsboot.c	Sansa Fuzev2: Add mkamsboot and dualboot support. The bootloader doesn't work, but pressing \|<< or inserting USB to boot the OF does.	2010-02-26 13:55:17 +00:00
mkamsboot.h	Sansa Fuzev2: Add mkamsboot and dualboot support. The bootloader doesn't work, but pressing \|<< or inserting USB to boot the OF does.	2010-02-26 13:55:17 +00:00
README	Add Sansa Clip+ target to test mkamsboot	2010-01-13 03:05:29 +00:00

README

mkamsboot
---------

A tool to inject a bootloader into a Sansa V2 (AMS) firmware file.


Usage
-----

mkamsboot <firmware file> <boot file> <output file>

<firmware file> is an original Sansa firmware file obtained from the Sansa
    forums for example : http://forums.sandisk.com/sansa/?category.id=devices

<boot file> is the code you want to execute (a rockbox bootloader), previously
    scrambled with tools/scramble utility.

<output file> is the resulting firmware file which you'll have to copy on your
    Sansa player. See "Firmware filenames".


Supported models
----------------

Sansa Clip  :   firmware version starting with "01."
Sansa Clip+ :   firmware version starting with "01."
Sansa Clipv2:   firmware version starting with "02."
Sansa Fuze  :   firmware version starting with "01."
Sansa E200v2:   firmware version starting with "03."
Sansa C200v2:   firmware version starting with "03."
Sansa M200v4:   firmware version starting with "4."


Firmware filenames
------------------

For the firmware upgrade to happen, the firmware has to be named specially:

clip v2 :   m30pa.bin
clip    :   m300a.bin
clip+   :   clppa.bin
fuze    :   fuzea.bin
e200v2  :   e200pa.bin
c200v2  :   c200pa.bin
m200v4  :   m200a.bin


Dual-Boot
---------

  The purpose of this program is to provide dual-boot between the original
firmware and the new (rockbox) firmware.

  By default the player will boot into the new firmware.

  To boot into the Original Firmware, you need to press the Left key.
  ***Note : on the c200v2 you need to press the Right key.

  The player will boot into the Original Firmware as well if it is powered up by
inserting an usb cable.
  ***Note : on the m200v4 powering up by usb will cause booting into the new
firmware

Hacking
-------

See comments in mkamsboot.c and dualboot/dualboot.S for more information.