laforge at gnumonks.org
Wed Jun 8 12:52:48 UTC 2011
On Wed, Jun 08, 2011 at 10:55:03AM +0200, Drasko DRASKOVIC wrote:
> > (of course only on those phones that expose JTAG, which specifically is
> > _not_ the C123 we have seen,
> Hmm... I was little bit confused so I needed clarification. When you
> say that C123 do not expose JTAG, what are then TDI, TDO and TMS pins
> here :
> http://bb.osmocom.org/trac/attachment/wiki/MotorolaC123/compal_testpads.png ?
> I thought that they are standard JTAG signals and that we can connect
> JTAG probe connector directly there. After that alls should work with
> OpenOCD because it have great support for ARM7TDMI.
Sorry, which part of the paragraph below the picture is unclear to you?
On the C123 the following pads are usable
* TP27 -- DLPWR (download power on), connects to Iota:RPWON
* TP14 -- RxD Modem
* TP13 -- TxD Modem
* TP9 -- CTS Modem
* TP39 -- GND
On most phones other pads are grounded and not usable (like in the scan
above). Known exceptions
* C115 and C117 have all test pads
* C155 has JTAG but not IRDA UART test pads
- 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)
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