See my last message even with the jumpers soldered, the jtag could still be disabled by hardware or software.
On Jun 14, 2009, at 9:37 PM, tof <[email protected]> wrote: > the jtag is just cut through unpopulated jumpers. > si it's not available externally on normal models. > > But soldering jumpers is the only thing necessary to have it ;) > > > sto > > > > Cory Walker a écrit : >> Sorry, my ipod sent the message >> Too soon. Anyways, perhaps JTag halting has been disabled on non-dev >> models. I know on AVRs there are lock bits that can be set to disable >> reading/writing to the chip. Maybe the 8700 has something similar for >> jtag. Will look at the datasheet later. I wonder if other models have >> jtag on the same dock pins. I might be able to test my 4g if i can >> build a jtag unit and get a dock breakout. It makes me suspicious >> that >> apple would leave a working jtag lawing around, especially on the >> dock >> connector. Surely it would be disabled or something. >> >> >> >> On Jun 14, 2009, at 11:12 AM, tof <[email protected]> wrote: >> >>> So, even more good news : >>> >>> JTAG device found: 0x10940f0f (Manufacturer: 0x787, Part: 0x0940, >>> Version: 0x1) >>> >>> so i's the arm ! >>> >>> but it seems i cannot halt it for looking at the registers and other >>> things. >>> >>> are there some ARM debug experts ? i would need help on this... >>> >>> >>> sto >>> >>> >>> >>> openocd log : >>> >>> ------------------ >>> openocd -f openocd.conf >>> Open On-Chip Debugger 1.0 (2008-06-22-10:53) svn:unknown >>> $URL: http://svn.berlios.de/svnroot/repos/openocd/trunk/src/ >>> openocd.c $ >>> Info: options.c:50 configuration_output_handler(): jtag_speed: >>> 1, 1 >>> Info: options.c:50 configuration_output_handler(): Open On-Chip >>> Debugger 1.0 (2008-06-22-10:53) svn:unknown >>> Info: jtag.c:1376 jtag_examine_chain(): JTAG device found: >>> 0x10940f0f >>> (Manufacturer: 0x787, Part: 0x0940, Version: 0x1) >>> Info: jtag.c:1376 jtag_examine_chain(): JTAG device found: >>> 0x10940f0f >>> (Manufacturer: 0x787, Part: 0x0940, Version: 0x1) >>> User: target.c:435 target_process_reset(): Timed out waiting for >>> halt >>> after reset >>> Info: server.c:78 add_connection(): accepting 'telnet' connection >>> from 0 >>> Error: target.c:1789 wait_state(): timed out while waiting for >>> target >>> halted >>> -------------------- >>> >>> config : >>> -------------------- >>> #daemon configuration >>> telnet_port 1111 >>> gdb_port 2222 >>> >>> #interface >>> interface parport >>> parport_port 0 >>> parport_cable dlc5 >>> jtag_speed 1 >>> >>> >>> #use combined on interfaces or targets that can't set TRST/SRST >>> separately >>> reset_config trst_and_srst srst_pulls_trst >>> #jtag scan chain >>> #format L IRC IRCM IDCODE (Length, IR Capture, IR Capture Mask, >>> IDCODE) >>> jtag_device 4 0x1 0xf 0xe >>> #target configuration >>> daemon_startup reset >>> >>> >>> #target <type> <startup mode> >>> #target arm7tdmi <reset mode> <chainpos> <endianness> <variant> >>> target arm7tdmi little run_and_halt 0 arm7tdmi-s_r4 >>> run_and_halt_time 0 30 >>> >>> -------------------- >>> >>> telnet : >>> ------------------- >>> >>> Open On-Chip Debugger >>>> halt >>> waiting for target halted... >>> timed out while waiting for target halted >>> ------------------- >>> >>> >>> >>> >>> >>> >>> >>> Cory Walker a écrit : >>>> Amazing! Simply amazing! I am vacationing in the outer banks right >>>> now >>>> so I have nothing but an ipod touch. Have you checked the 8700 >>>> datasheet we found for JTAG info I can't look right now. I should >>>> be >>>> back in a week and I could help w/ research and the wiki. >>>> Congrats!!! >>>> >>> _______________________________________________ >>> Linux4nano-dev mailing list >>> [email protected] >>> https://mail.gna.org/listinfo/linux4nano-dev >>> http://www.linux4nano.org >> >> _______________________________________________ >> Linux4nano-dev mailing list >> [email protected] >> https://mail.gna.org/listinfo/linux4nano-dev >> http://www.linux4nano.org > > _______________________________________________ > Linux4nano-dev mailing list > [email protected] > https://mail.gna.org/listinfo/linux4nano-dev > http://www.linux4nano.org _______________________________________________ Linux4nano-dev mailing list [email protected] https://mail.gna.org/listinfo/linux4nano-dev http://www.linux4nano.org
