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
