For my part I am totally impressed by the PCB layers images. How do you get them? just grinding with fine sandpaper and a lot of patience, or do you have a machine?
Sebastien
On Tue, Nov 9, 2010 at 8:24 AM, Harald Welte laforge@gnumonks.org wrote:
Hi Wolfgang,
thanks a lot for your support, including the teardown, PCB layer photographs, schematics, etc.
I think this really is getting into shape now and we have a much better base from where to work on actual software for MT6235 based phones.
My biggest concerns at the moment are that all of the peripheral data sheets are electrical data sheets only and MTK never documents the register set of e.g. the MT6140 (RF transceiver), MT6601 (bluetooth), MT6188 (fm radio), wifi, etc.
This means a lot of unneccessary reverse engineering unless we can find an alternative source for this kind of information. I'm less worried about bluetooth or FM radio. The GSM RF transceiver is probably possible to reverse engineer from the test mode + 3wire protocol sniffing, but wifi e.g. is defnitely too complex to do a 100% reverse engineered driver for...
But I don't even have links to the 6235 or 6140 datasheets right now...
The links I know only go to 52RD BBS and similar sites, where you cannot download without an account. I have an account, but we don't want to put them in the wiki publicly ;)
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- Harald Welte laforge@gnumonks.org
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