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Harald Welte laforge at gnumonks.orgHi 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 at gnumonks.org> http://laforge.gnumonks.org/ ============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6)