Hello,
I’m new to JTAG and debugging but I need to get some images to pxa270 system with JTAG. I’m using linux and ARM-USB-OCD by Olimex. OpenOCD starts with an error and warnings (see below starting at line 54). When I try to telnet to target and then for example check flash configuration (>flash info 0) it gives segmentation fault.
Any ideas how to get through this? Maybe something to kick me to the right direction 
Thanks.
By the way, I had to remove debug line 27 from the debug info below. It gave me an error when submitting this text even if it was inside ‘code’. I really can’t see why. Weird.
Debug: 6 0 command.c:375 command_run_line(): script openocd.cfg
Debug: 7 0 configuration.c:87 open_file_from_path(): opened openocd.cfg
Debug: 8 0 command.c:375 command_run_line(): telnet_port 3333
Debug: 9 0 command.c:375 command_run_line(): gdb_port 4444
Debug: 10 0 command.c:375 command_run_line(): interface ft2232
Debug: 11 0 command.c:375 command_run_line(): ft2232_layout olimex-jtag
Debug: 12 0 command.c:375 command_run_line(): ft2232_vid_pid 0x15BA 0x0003
Debug: 13 0 command.c:375 command_run_line(): ft2232_device_desc "Olimex OpenOCD JTAG"
Debug: 14 0 command.c:375 command_run_line(): jtag_speed 0
Debug: 15 0 command.c:375 command_run_line(): jtag_nsrst_delay 260
Debug: 16 0 command.c:375 command_run_line(): jtag_ntrst_delay 0
Debug: 17 0 command.c:375 command_run_line(): reset_config trst_and_srst separate
Debug: 18 0 command.c:375 command_run_line(): jtag_device 7 0x1 0x7f 0x7e
Debug: 19 0 command.c:375 command_run_line(): daemon_startup reset
Debug: 20 0 command.c:375 command_run_line(): target xscale little reset_halt 0 pxa27x
Debug: 21 0 command.c:375 command_run_line(): working_area 0 0x5c000000 0x10000 nobackup
Debug: 22 0 command.c:375 command_run_line(): run_and_halt_time 0 30
Debug: 23 0 command.c:375 command_run_line(): flash bank cfi 0x0000000 0x4000000 2 4 0
Debug: 24 0 jtag.c:1439 jtag_init(): -
Debug: 25 0 ft2232.c:1463 ft2232_init_libftdi(): 'ft2232' interface using libftdi with 'olimex-jtag' layout (15ba:0003)
Debug: 26 1 ft2232.c:1505 ft2232_init_libftdi(): current latency timer: 2
asserted
Debug: 28 1 ft2232.c:1815 olimex_jtag_init(): 82 09 0f
Debug: 29 1 ft2232.c:256 ft2232_speed(): 86 00 00
Debug: 30 1 jtag.c:303 jtag_call_event_callbacks(): jtag event: TRST asserted
Debug: 31 1 jtag.c:1210 jtag_reset_callback(): -
Debug: 32 1 jtag.c:303 jtag_call_event_callbacks(): jtag event: TRST asserted
Debug: 33 1 jtag.c:1210 jtag_reset_callback(): -
Info: 34 1 jtag.c:1304 jtag_examine_chain(): JTAG device found: 0x79265013 (Manufacturer: 0x009, Part: 0x9265, Version: 0x7)
Debug: 35 1 jtag.c:303 jtag_call_event_callbacks(): jtag event: TRST asserted
Debug: 36 1 jtag.c:1210 jtag_reset_callback(): -
Debug: 37 1 openocd.c:114 main(): jtag init complete
Debug: 38 1 jtag.c:303 jtag_call_event_callbacks(): jtag event: SRST released
Debug: 39 1 jtag.c:1210 jtag_reset_callback(): -
Debug: 40 1 jtag.c:303 jtag_call_event_callbacks(): jtag event: TRST asserted
Debug: 41 1 jtag.c:1210 jtag_reset_callback(): -
Debug: 42 1 jtag.c:303 jtag_call_event_callbacks(): jtag event: SRST released
Debug: 43 1 jtag.c:1210 jtag_reset_callback(): -
Debug: 44 1 ft2232.c:1000 olimex_jtag_reset(): trst: 1, srst: 0, high_output: 0x08, high_direction: 0x0f
Debug: 45 1 ft2232.c:1000 olimex_jtag_reset(): trst: 0, srst: 0, high_output: 0x09, high_direction: 0x0f
Debug: 46 1 openocd.c:118 main(): target init complete
Debug: 47 1 openocd.c:122 main(): flash init complete
Debug: 48 1 openocd.c:126 main(): NAND init complete
Debug: 49 1 openocd.c:130 main(): pld init complete
Debug: 50 1 gdb_server.c:1978 gdb_init(): gdb service for target xscale at port 4444
Debug: 51 1 xscale.c:1583 xscale_assert_reset(): target->state: unknown
Debug: 52 1 jtag.c:303 jtag_call_event_callbacks(): jtag event: TRST released
Debug: 53 1 jtag.c:1210 jtag_reset_callback(): -
Warning: 54 1 jtag.c:1132 jtag_check_value(): value captured during scan didn't pass the requested check: captured: 0x00 check_value: 0x02 check_mask: 0x07
Warning: 55 1 jtag.c:1092 jtag_read_buffer(): in_handler reported a failed check
Error: 56 1 xscale.c:803 xscale_write_dcsr(): JTAG error while writing DCSR
Debug: 57 1 jtag.c:303 jtag_call_event_callbacks(): jtag event: SRST asserted
Debug: 58 1 jtag.c:1210 jtag_reset_callback(): -
Debug: 59 1 ft2232.c:1000 olimex_jtag_reset(): trst: 0, srst: 1, high_output: 0x03, high_direction: 0x0f
Debug: 60 1 xscale.c:1251 xscale_halt(): target->state: reset
Debug: 61 1 xscale.c:1266 xscale_halt(): target->state == TARGET_RESET
Debug: 62 1 xscale.c:1627 xscale_deassert_reset(): -
Debug: 63 1 jtag.c:303 jtag_call_event_callbacks(): jtag event: SRST released
Debug: 64 1 jtag.c:1210 jtag_reset_callback(): -
Debug: 65 1 ft2232.c:1000 olimex_jtag_reset(): trst: 0, srst: 0, high_output: 0x01, high_direction: 0x0f
Debug: 66 2 configuration.c:87 open_file_from_path(): opened /usr/lib/openocd/xscale/debug_handler.bin
Debug: 67 2 xscale.c:835 xscale_load_ic(): loading miniIC at 0xfe000820
Debug: 68 2 xscale.c:821 parity(): parity of 0xee1ade10 is 0
Debug: 69 2 xscale.c:821 parity(): parity of 0xe21dd102 is 1
Debug: 70 2 xscale.c:821 parity(): parity of 0x1a000001 is 0
Debug: 71 2 xscale.c:821 parity(): parity of 0xe3a0d103 is 1
Debug: 72 2 xscale.c:821 parity(): parity of 0xee0ade10 is 1
Debug: 73 2 xscale.c:821 parity(): parity of 0xee1efe10 is 0
Debug: 74 2 xscale.c:821 parity(): parity of 0x6afffffd is 1
Debug: 75 2 xscale.c:821 parity(): parity of 0xee080e10 is 1
Debug: 76 2 xscale.c:835 xscale_load_ic(): loading miniIC at 0xfe000840
Debug: 77 2 xscale.c:821 parity(): parity of 0xee1efe10 is 0
Debug: 78 2 xscale.c:821 parity(): parity of 0x6afffffd is 1
Debug: 79 2 xscale.c:821 parity(): parity of 0xee08ee10 is 0
Debug: 80 2 xscale.c:821 parity(): parity of 0xe1a00001 is 1
Debug: 81 2 xscale.c:821 parity(): parity of 0xeb000170 is 0
Debug: 82 2 xscale.c:821 parity(): parity of 0xe1a00002 is 1
Debug: 83 2 xscale.c:821 parity(): parity of 0xeb00016e is 0
Debug: 84 2 xscale.c:821 parity(): parity of 0xe1a00003 is 0
Debug: 85 2 xscale.c:835 xscale_load_ic(): loading miniIC at 0xfe000860
...and so on