Hi,
First I'd like to thank all people involved with the project. I don't know about GSM but as Harald said [1] I can contribute with microcontroller development.
I have an old functional Motorola C200 phone. I'd like to know if it's possible use it? I've search for some information about C200 baseband processor without success, so I'm asking in the list.
[1] http://lists.osmocom.org/pipermail/baseband-devel/2010-February/000000.html
--tm
Hi Tiago,
On Wed, Feb 24, 2010 at 07:00:00PM +0000, Tiago Maluta wrote:
First I'd like to thank all people involved with the project. I don't know about GSM but as Harald said [1] I can contribute with microcontroller development.
great. do you have any particular area of interest?
I have an old functional Motorola C200 phone. I'd like to know if it's possible use it? I've search for some information about C200 baseband processor without success, so I'm asking in the list.
As far as I know, the C2xx series is also a Compal ODM series, but it uses the Ti Locosto chipset and not Calypso. There are not as many details known about the locosto, so as of now it is not clear how difficult a port to that chipset would be.
On Wed, Feb 24, 2010 at 6:23 PM, Harald Welte laforge@gnumonks.org wrote:
Hi Tiago,
On Wed, Feb 24, 2010 at 07:00:00PM +0000, Tiago Maluta wrote:
First I'd like to thank all people involved with the project. I don't know about GSM but as Harald said [1] I can contribute with microcontroller development.
great. do you have any particular area of interest?
Not yet.
My first step after get any supported phone hardware is make tests until I get familiar with the project. I'll follow the maillist and report my tests and doubts. Maybe my first test I'll be using C200 (I din't found any C1xx yet) to raise the chipset differences.
--tm
After opened the C200 I noticed that this model (marketed in Brazil) isn't a Compal ODM series but manufactured here in Brazil, I take one picture. http://www.flickr.com/photos/maluta/4391126380/ and added an note for each CI. I've searched for this part numbers but didn't get much information, I think this model wouldn't be useful to the project, I'll take a look to one compatible one. :p
--tm
Hi!
On Sat, Feb 27, 2010 at 03:05:00AM +0000, Tiago Maluta wrote:
After opened the C200 I noticed that this model (marketed in Brazil) isn't a Compal ODM series but manufactured here in Brazil, I take one picture. http://www.flickr.com/photos/maluta/4391126380/ and added an note for each CI.
HERCROMC200 is a relative of the Calypso chipset (HERCROM400G2). We don't know many details, but I would assume they are 95-98% identical from a software point of view.
The TWL3012 is a bit old, I have only heard of TWL3014/16/25 so far. However, the TSM30 source code include support for many predecessors - they are just not called by their name, so it will likely be trial+error to find out.
The RF3140 is only a power amplifier, not much to be done from the software to support it.
What I'm more worried about is the part you have marked as 4dtoc8, which must be what is the Rita/TRF6151 in the c1xx design. Can you remove the metal part on top and take a photograph of it?
I've searched for this part numbers but didn't get much information, I think this model wouldn't be useful to the project, I'll take a look to one compatible one. :p
Definitely, to get started with our code, you should use a phoen that is already supported - unless you have a lot of experience with low-level bring up of ARM microcontrollers and boot loader reverse engineering.
But in a later step, trying to reproduce the C1xx results on the C200 would of course be very interesting and exciting!
baseband-devel@lists.osmocom.org
-
Harald Welte -
Tiago Maluta