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Creative Zen Vision:M

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Hoffmann:
As written before, there already have been some scans, if someone really wants to mess around with the hardware stuff, thats fine, but we don't need sending around an zvm just for scanning purposes.

If someone has a new status (what is with the ppl that tryed to understand the firmwareupdate?), please tell me, I will update the wiki-page.
If someone wants to participate, I'm also collecting the contact-data

Please take a look at the wiki-page

03/01/07 8:00PM EST = 2.03.2007 2:00 (AM) CET (sorry, we know, it's late)
(corrected transcription)

jhulst:
We will be having an informal meeting in the the IRC Channel irc.freenode.net #rockbox at 8 p.m. Eastern Time on 3/1/07. Anybody even remotely interested in the project is encouraged to be there. We will be working on getting a plan together to go forward and see what we are working with.

jwh

saratoga:
The archopen people are hosting the data sheet for the tms320dsc24:

http://www.archopen.org/tiki-list_file_gallery.php?galleryId=3

Here is the TI docs for the DSP core itself:
http://focus.ti.com/lit/ug/spru131g/spru131g.pdf

Since it looks like the device can boot even if you screw up the hard disk, the next step is to figure out how to run stuff on the device.  Based on the comments above, it seems like the firmware is unencrypted, and protected only by a simple checksum.  If someone figured out how the checksum worked, we could run whatever we liked on the device.  Cracking the checksum will probably involve figuring out where it's computed, and stealing their algorithm.  

nickqueen:
Keep in mind I'm by no means a programmer, but I do wish to help if I can. I went on a scavenger hunt looking for any info i thought might be useful. I'll list it below:

Programming Spansion S29GL032M-TA-R2 by a ChipProg+ device programmer
http://www.chipprog.com/spansion/s29gl032m-ta-r2_3tsop.shtml

29GL032M - 256,128,64,32,Megabit 3.0 Volt-only Page Mode Flash Memory featuring 0.23 ¥ìm MirrorBit Process Technology - SPANSION Datasheet
http://www.alldatasheet.com/datasheet-pdf/pdf/164984/SPANSION/S29GL032M.html

Philips ISP1583 Datasheet
http://www.chipcatalog.com/Philips/ISP1583.htm

Finally, this is the most I could find on Infineon datasheets
http://www.datasheetcatalog.com/infineon/1/

Are we sure about that model number?

Hope this helps!

Nick

AlexP:

--- Quote from: Hoffmann on March 01, 2007, 12:17:53 PM ---03/01/07 8:00PM EST = 1.04.2007 2:00 (AM) MEZ (sorry, we know, it's late)

--- End quote ---

Sorry, I'm a little confused about your date.  I assume by 1.04.2007 you actually mean 02.03.2007, i.e. 2nd March given 03/01/07 is in US speak 1st March?  [off topic] I swear I'll never understand why the USA does month/day/year rather then either day/month/year or year/month/day, both of which are so much more logical  :D[/off topic]

Back on topic, just a point about the 2am CET (I think MEZ is the German abbreviation for Central European Time), but most of the core devs are in Europe, so if you wanted their input to your ideas, you may want to consider moving your gathering earlier to a time when they are likely to not be in bed.

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