9 May
2010
9 May
'10
11:16 a.m.
Hi all,
On Mon, Apr 19, 2010 at 07:21:40AM +0000, Wolfgang Spraul wrote:
5) CECT C3100, ca 20 USD, MT6223CA, MT6139BN,
RDA6212+
The standard set of 5 test points I seem to find on all MTK phones are PWRKEY,
RX, TX, GND and VBAT.
Beyond that test points are rare. The CECT C3100 had a few small ones right
next to the CPU (but under a soldered shielding case). Might be something
interesting but not sure yet.
I've used the PCB layers to trace the JTAG wires. They should be assigned
as indicated in the picture at
http://en.qi-hardware.com/wiki/File:C3100_testpads_jtag.png
The "RTCK" is a bit strange, it is the 'return jtag clock', i.e. you
get back
the clock that you send to TCK.
I haven't tested any of those yet, but maybe at some point during the next
weeks...
Happy hacking,
Harald
--
- Harald Welte <laforge(a)gnumonks.org> http://laforge.gnumonks.org/
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