10.07.2017 22:37, Mathias Kresin:
10.07.2017 22:07, Damian Kaczkowski:
Hello Sylwester.
On 10 July 2017 at 20:10, Sylwester Petela <ssc...@gmail.com> wrote:
I used the following pictures for visualising and flowing the traces.
The pictures are in the gimp format and have multiple layers:
TD-W8980 - Annex A:
https://www.dropbox.com/s/j6qoeoy1a479yrz/tp-link_w8980v1.xcf?dl=0
o2 Box 6431 - Annex B:
https://www.dropbox.com/s/jskzcnxvszdlraj/o2_6431.xcf?dl=0
Your dropbox links does not work. Cloud you please look into this?
Thanks in advance.
Most likely because these are links to my Dropbox. I'll send you a link
off-list. But I'm in doubt that it contains what you are looking for.
With a lot of help from Sylwester I've modified the Hardware of an Annex
A board in a way that it syncs on an Annex B line.
I had to change some bootstrap resistors to change the hybrid mode of
the VRX208. Afterwards I was able to load an Annex B firmware.
Unfortunately it was the last step I made.
Prior I changed some more resistors, some caps and the line transformer
to match the components to what I found on Annex B boards. Not sure if
it was really necessary.
I do not have a real clue what the AVM commands do. But it looks like
they are patching some (ram/register?) values of the VRX208. To my
knowledge, the VRX208 is an arc cpu and the xdsl firmware some kind of
operating system. But I could be wrong on this. There is literally no
information about Lantiq chips publicly available.
I already had a look at some AVM GPL tarballs, but none of them had the
xdsl driver/daemon source code included. Would be to easy for us...
Mathias
The link to my "annex_switch" Dropbox folder:
https://www.dropbox.com/sh/hfir1pk5vvo6b29/AADcArCIJumnS7MLV6TiCD4Ba?dl=0.
Mathias
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