Has anybody gotten OpenOCD to work with an Atmel AT91SAM9G20? I found a thread from about 6 months ago that indicated it was partially working with an Amontek JTAG interface, but there were problems and the thread contained no indication that the problems had ever been resolved.
I'm trying to use an Olimex tiny with the 'G20 and I'm having little luck. The Olimex interface worked fine with an Atmel ATRM9200, so I know the hardware is OK and openocd/libftdi both work. If I attempt to connect to a the board (an Atmel AT92SAM9G20-EK Rev B eval board), OpenOCD _occasionally_ finds the CPU, but it usually complains like this: Open On-Chip Debugger 0.1.0 (2009-06-29-11:11) Release $URL: https://kc8...@svn.berlios.de/svnroot/repos/openocd/tags/openocd-0.1.0/src/openocd.c $ jtag_speed: 5 use of EmbeddedICE dbgrq instead of breakpoint for target halt enabled Error: couldn't read the requested number of bytes from FT2232 device (19 < 81) Error: couldn't read from FT2232 Error: number of discovered devices in JTAG chain (0) doesn't match (enabled) configuration (1), total taps: 1 Error: check the config file and ensure proper JTAG communication (connections, speed, ...) Error: trying to validate configured JTAG chain anyway... Warn : no tcl port specified, using default port 6666 or like this: Open On-Chip Debugger 0.1.0 (2009-06-29-11:11) Release $URL: https://kc8...@svn.berlios.de/svnroot/repos/openocd/tags/openocd-0.1.0/src/openocd.c $ jtag_speed: 5 use of EmbeddedICE dbgrq instead of breakpoint for target halt enabled Info : JTAG tap: at91sam9g20.cpu tap/device found: 0x0792603f (Manufacturer: 0x01f, Part: 0x7926, Version: 0x0) Info : JTAG Tap/device matched Warn : no tcl port specified, using default port 6666 Warn : DBGACK set while target was in unknown state. Reset or initialize target. If I cycle power on the board immediately before starting openocd it will connect sometimes (maybe 20% of the time): Open On-Chip Debugger 0.1.0 (2009-06-29-11:11) Release $URL: https://kc8...@svn.berlios.de/svnroot/repos/openocd/tags/openocd-0.1.0/src/openocd.c $ jtag_speed: 5 use of EmbeddedICE dbgrq instead of breakpoint for target halt enabled Info : JTAG tap: at91sam9g20.cpu tap/device found: 0x0792603f (Manufacturer: 0x01f, Part: 0x7926, Version: 0x0) Info : JTAG Tap/device matched Warn : no tcl port specified, using default port 6666 But then when I telnet in, it won't do anything useful. Attempting to read memory fails with a "device not halted" message, but the 'halt' command just hangs forever. I'm now a bit stumped, and would appreciate the loan of a clue... The config I'm using was gleaned from various mailing list postings: # REFERENCE: http://www.olimex.com/dev/arm-usb-tiny.html interface ft2232 ft2232_device_desc "Olimex OpenOCD JTAG TINY" ft2232_layout olimex-jtag ft2232_vid_pid 0x15ba 0x0004 #daemon configuration telnet_port 4444 gdb_port 3333 set CHIPNAME at91sam9g20 set ENDIAN little set CPUTAPID 0x0792603f # chip source [find target/at91sam9260.cfg] jtag_speed 5 $_TARGETNAME configure -event reset-init { # at reset chip runs at 32khz jtag_khz 8 mww 0xfffffd08 0xa5000501 # RSTC_MR : enable user reset mww 0xfffffd44 0x00008000 # WDT_MR : disable watchdog mww 0xfffffc20 0x00004001 # CKGR_MOR : enable the main oscillator sleep 20 # wait 20 ms mww 0xfffffc30 0x00000001 # PMC_MCKR : switch to main oscillator sleep 10 # wait 10 ms mww 0xfffffc28 0x2060bf09 # CKGR_PLLAR: Set PLLA Register for 198,656MHz sleep 20 # wait 20 ms mww 0xfffffc30 0x00000101 # PMC_MCKR : Select prescaler sleep 10 # wait 10 ms mww 0xfffffc30 0x00000102 # PMC_MCKR : Clock from PLLA is selected sleep 10 # wait 10 ms # Now run at anything fast... ie: 10mhz! jtag_khz 10000 # Increase JTAG Speed to 6 MHz arm7_9 dcc_downloads enable # Enable faster DCC downloads } #this chip has more sram # Internal sram2 memory $_TARGETNAME configure -work-area-virt 0 -work-area-phys 0x00200000 -work-area-size 0x1000 -work-area-backup 1 #gdb gdb_memory_map enable arm7_9 dbgrq enable Here's a debug log for the case that comes closest to working (where the CPU is identified correctly). I then telnet in and issue an "mdb" command and then a "halt" command. At that point, openocd hangs and I kill it with Ctrl-C: # openocd -d3 Open On-Chip Debugger 0.1.0 (2009-06-29-11:11) Release $URL: https://kc8...@svn.berlios.de/svnroot/repos/openocd/tags/openocd-0.1.0/src/openocd.c $ User : 5 1 command.c:494 command_run_line(): Debug: 6 1 configuration.c:88 find_file(): found openocd.cfg Debug: 8 1 command.c:91 script_command(): script_command - interface Debug: 9 1 command.c:108 script_command(): script_command - interface, argv[0]=ocd_interface Debug: 10 1 command.c:108 script_command(): script_command - interface, argv[1]=ft2232 Debug: 12 1 command.c:91 script_command(): script_command - ft2232_device_desc Debug: 13 1 command.c:108 script_command(): script_command - ft2232_device_desc, argv[0]=ocd_ft2232_device_desc Debug: 14 1 command.c:108 script_command(): script_command - ft2232_device_desc, argv[1]=Olimex OpenOCD JTAG TINY Debug: 16 1 command.c:91 script_command(): script_command - ft2232_layout Debug: 17 1 command.c:108 script_command(): script_command - ft2232_layout, argv[0]=ocd_ft2232_layout Debug: 18 1 command.c:108 script_command(): script_command - ft2232_layout, argv[1]=olimex-jtag Debug: 20 1 command.c:91 script_command(): script_command - ft2232_vid_pid Debug: 21 1 command.c:108 script_command(): script_command - ft2232_vid_pid, argv[0]=ocd_ft2232_vid_pid Debug: 22 1 command.c:108 script_command(): script_command - ft2232_vid_pid, argv[1]=0x15ba Debug: 23 1 command.c:108 script_command(): script_command - ft2232_vid_pid, argv[2]=0x0004 Debug: 25 1 command.c:91 script_command(): script_command - telnet_port Debug: 26 1 command.c:108 script_command(): script_command - telnet_port, argv[0]=ocd_telnet_port Debug: 27 1 command.c:108 script_command(): script_command - telnet_port, argv[1]=4444 Debug: 29 1 command.c:91 script_command(): script_command - gdb_port Debug: 30 1 command.c:108 script_command(): script_command - gdb_port, argv[0]=ocd_gdb_port Debug: 31 1 command.c:108 script_command(): script_command - gdb_port, argv[1]=3333 Debug: 32 1 configuration.c:88 find_file(): found /usr/lib/openocd/target/at91sam9260.cfg Debug: 33 1 configuration.c:88 find_file(): found /usr/lib/openocd/target/at91sam9260minimal.cfg Debug: 35 2 command.c:91 script_command(): script_command - reset_config Debug: 36 2 command.c:108 script_command(): script_command - reset_config, argv[0]=ocd_reset_config Debug: 37 2 command.c:108 script_command(): script_command - reset_config, argv[1]=trst_and_srst Debug: 38 2 jtag.c:1892 jim_newtap_cmd(): Creating New Tap, Chip: at91sam9g20, Tap: cpu, Dotted: at91sam9g20.cpu, 8 params Debug: 39 2 jtag.c:1911 jim_newtap_cmd(): Processing option: -irlen Debug: 40 2 jtag.c:1911 jim_newtap_cmd(): Processing option: -ircapture Debug: 41 2 jtag.c:1911 jim_newtap_cmd(): Processing option: -irmask Debug: 42 2 jtag.c:1911 jim_newtap_cmd(): Processing option: -expected-id Debug: 43 2 jtag.c:2024 jim_newtap_cmd(): Created Tap: at91sam9g20.cpu @ abs position 0, irlen 4, capture: 0x1 mask: 0xf Debug: 45 2 command.c:91 script_command(): script_command - jtag_nsrst_delay Debug: 46 2 command.c:108 script_command(): script_command - jtag_nsrst_delay, argv[0]=ocd_jtag_nsrst_delay Debug: 47 2 command.c:108 script_command(): script_command - jtag_nsrst_delay, argv[1]=200 Debug: 49 2 command.c:91 script_command(): script_command - jtag_ntrst_delay Debug: 50 2 command.c:108 script_command(): script_command - jtag_ntrst_delay, argv[0]=ocd_jtag_ntrst_delay Debug: 51 2 command.c:108 script_command(): script_command - jtag_ntrst_delay, argv[1]=200 Debug: 52 2 target.c:3911 jim_target(): Target command params: Debug: 53 2 target.c:3912 jim_target(): target create at91sam9g20.cpu arm926ejs -endian little -chain-position at91sam9g20.cpu -variant arm926ejs Debug: 55 2 command.c:91 script_command(): script_command - bank Debug: 56 2 command.c:108 script_command(): script_command - bank, argv[0]=ocd_flash_bank Debug: 57 2 command.c:108 script_command(): script_command - bank, argv[1]=cfi Debug: 58 2 command.c:108 script_command(): script_command - bank, argv[2]=0x10000000 Debug: 59 2 command.c:108 script_command(): script_command - bank, argv[3]=0x01000000 Debug: 60 2 command.c:108 script_command(): script_command - bank, argv[4]=2 Debug: 61 2 command.c:108 script_command(): script_command - bank, argv[5]=2 Debug: 62 2 command.c:108 script_command(): script_command - bank, argv[6]=0 Debug: 64 3 command.c:91 script_command(): script_command - jtag_speed Debug: 65 3 command.c:108 script_command(): script_command - jtag_speed, argv[0]=ocd_jtag_speed Debug: 66 3 command.c:108 script_command(): script_command - jtag_speed, argv[1]=5 Debug: 67 3 jtag.c:2620 handle_jtag_speed_command(): handle jtag speed User : 68 3 command.c:383 command_print(): jtag_speed: 5 Debug: 70 3 command.c:91 script_command(): script_command - gdb_memory_map Debug: 71 3 command.c:108 script_command(): script_command - gdb_memory_map, argv[0]=ocd_gdb_memory_map Debug: 72 3 command.c:108 script_command(): script_command - gdb_memory_map, argv[1]=enable Debug: 74 3 command.c:91 script_command(): script_command - dbgrq Debug: 75 3 command.c:108 script_command(): script_command - dbgrq, argv[0]=ocd_arm7_9_dbgrq Debug: 76 3 command.c:108 script_command(): script_command - dbgrq, argv[1]=enable User : 77 3 command.c:383 command_print(): use of EmbeddedICE dbgrq instead of breakpoint for target halt enabled User : 78 3 command.c:494 command_run_line(): Debug: 80 3 command.c:91 script_command(): script_command - init Debug: 81 3 command.c:108 script_command(): script_command - init, argv[0]=ocd_init Debug: 82 3 openocd.c:144 handle_init_command(): target init complete Debug: 83 3 ft2232.c:1588 ft2232_init_libftdi(): 'ft2232' interface using libftdi with 'olimex-jtag' layout (15ba:0004) Debug: 84 9 ft2232.c:1630 ft2232_init_libftdi(): current latency timer: 2 Debug: 85 9 ft2232.c:1966 olimex_jtag_init(): 80 08 1b Debug: 86 9 ft2232.c:2009 olimex_jtag_init(): 82 09 0f Debug: 87 9 ft2232.c:276 ft2232_speed(): 86 05 00 Debug: 88 10 openocd.c:151 handle_init_command(): jtag interface init complete Debug: 89 10 jtag.c:2240 jtag_init_inner(): Init JTAG chain Debug: 90 10 jtag.c:434 jtag_call_event_callbacks(): jtag event: JTAG controller reset (RESET or TRST) Debug: 91 10 jtag.c:1487 jtag_reset_callback(): - Debug: 92 10 jtag.c:434 jtag_call_event_callbacks(): jtag event: JTAG controller reset (RESET or TRST) Debug: 93 10 jtag.c:1487 jtag_reset_callback(): - Info : 94 12 jtag.c:1607 jtag_examine_chain(): JTAG tap: at91sam9g20.cpu tap/device found: 0x0792603f (Manufacturer: 0x01f, Part: 0x7926, Version: 0x0) Info : 95 12 jtag.c:1645 jtag_examine_chain(): JTAG Tap/device matched Debug: 96 12 jtag.c:434 jtag_call_event_callbacks(): jtag event: JTAG controller reset (RESET or TRST) Debug: 97 12 jtag.c:1487 jtag_reset_callback(): - Debug: 98 16 openocd.c:157 handle_init_command(): jtag init complete Debug: 99 20 embeddedice.c:401 embeddedice_write_reg(): 0: 0x00000000 Debug: 100 20 embeddedice.c:401 embeddedice_write_reg(): 12: 0x00000000 Debug: 101 20 embeddedice.c:401 embeddedice_write_reg(): 20: 0x00000000 Debug: 102 20 openocd.c:160 handle_init_command(): jtag examine complete Debug: 103 20 openocd.c:166 handle_init_command(): flash init complete Debug: 104 20 openocd.c:170 handle_init_command(): mflash init complete Debug: 105 20 openocd.c:174 handle_init_command(): NAND init complete Debug: 106 20 openocd.c:178 handle_init_command(): pld init complete Debug: 107 20 gdb_server.c:2225 gdb_init(): gdb service for target arm926ejs at port 3333 Warn : 108 20 tcl_server.c:178 tcl_init(): no tcl port specified, using default port 6666 User : 109 20 command.c:494 command_run_line(): Info : 110 18110 server.c:89 add_connection(): accepting 'telnet' connection from 0 Debug: 112 20448 command.c:91 script_command(): script_command - mdb Debug: 113 20448 command.c:108 script_command(): script_command - mdb, argv[0]=ocd_mdb Debug: 114 20448 command.c:108 script_command(): script_command - mdb, argv[1]=0 Debug: 115 20448 arm7_9_common.c:1966 arm7_9_read_memory(): address: 0x00000000, size: 0x00000001, count: 0x00000001 Warn : 116 20448 arm7_9_common.c:1970 arm7_9_read_memory(): target not halted Debug: 117 20448 command.c:427 run_command(): Command failed with error code -304 User : 118 20448 command.c:626 openocd_jim_vfprintf(): Runtime error, file "command.c", line 456: User : 119 20448 command.c:626 openocd_jim_vfprintf(): Debug: 121 21707 command.c:91 script_command(): script_command - halt Debug: 122 21707 command.c:108 script_command(): script_command - halt, argv[0]=ocd_halt Debug: 123 21707 target.c:1744 handle_halt_command(): - Debug: 124 21707 arm7_9_common.c:1054 arm7_9_halt(): target->state: running Debug: 125 21707 embeddedice.c:401 embeddedice_write_reg(): 0: 0x00000002 Debug: 126 21712 embeddedice.c:401 embeddedice_write_reg(): 0: 0x00000005 Debug: 127 21712 embeddedice.c:401 embeddedice_write_reg(): 0: 0x00000005 Debug: 128 21713 arm926ejs.c:343 arm926ejs_examine_debug_reason(): internal debug request Debug: 129 21713 arm7_9_common.c:1153 arm7_9_debug_entry(): target entered debug from ARM state Debug: 130 21720 arm7_9_common.c:1185 arm7_9_debug_entry(): target entered debug state in Supervisor mode Debug: 131 21720 arm7_9_common.c:1216 arm7_9_debug_entry(): r0: 0x00000000 Debug: 132 21720 arm7_9_common.c:1216 arm7_9_debug_entry(): r1: 0x0005317f Debug: 133 21720 arm7_9_common.c:1216 arm7_9_debug_entry(): r2: 0x0005217f Debug: 134 21720 arm7_9_common.c:1216 arm7_9_debug_entry(): r3: 0x60000093 Debug: 135 21720 arm7_9_common.c:1216 arm7_9_debug_entry(): r4: 0xc002929c Debug: 136 21720 arm7_9_common.c:1216 arm7_9_debug_entry(): r5: 0xc02e8000 Debug: 137 21720 arm7_9_common.c:1216 arm7_9_debug_entry(): r6: 0xc02ebe30 Debug: 138 21720 arm7_9_common.c:1216 arm7_9_debug_entry(): r7: 0xc002929c Debug: 139 21720 arm7_9_common.c:1216 arm7_9_debug_entry(): r8: 0xc0305124 Debug: 140 21720 arm7_9_common.c:1216 arm7_9_debug_entry(): r9: 0x41069265 Debug: 141 21720 arm7_9_common.c:1216 arm7_9_debug_entry(): r10: 0x20021cf4 Debug: 142 21720 arm7_9_common.c:1216 arm7_9_debug_entry(): r11: 0xc02e9f94 Debug: 143 21720 arm7_9_common.c:1216 arm7_9_debug_entry(): r12: 0x600000d3 Debug: 144 21720 arm7_9_common.c:1216 arm7_9_debug_entry(): r13: 0xc02e9f88 Debug: 145 21720 arm7_9_common.c:1216 arm7_9_debug_entry(): r14: 0xc00292e0 Debug: 146 21720 arm7_9_common.c:1216 arm7_9_debug_entry(): r15: 0xc0030824 Debug: 147 21720 arm7_9_common.c:1222 arm7_9_debug_entry(): entered debug state at PC 0xc0030824 Debug: 148 21728 arm926ejs.c:477 arm926ejs_post_debug_entry(): cp15_control_reg: 0005217f Debug: 149 21737 arm926ejs.c:498 arm926ejs_post_debug_entry(): D FSR: 0x00000017, D FAR: 0x00092765, I FSR: 0x00000017 Debug: 150 21744 target.c:696 target_call_event_callbacks(): target event 4 (early-halted) ^C Any ideas? _______________________________________________ Openocd-development mailing list Openocd-development@lists.berlios.de https://lists.berlios.de/mailman/listinfo/openocd-development
