I'm using an Olimex ARM-USB-TINY to connect to two different imx28 based boards but have some issues.
first this is the config used ---------------- interface ft2232 ft2232_device_desc "Olimex OpenOCD JTAG TINY" ft2232_layout olimex-jtag ft2232_vid_pid 0x15ba 0x0004 set _CHIPNAME imx28 set _ENDIAN little set _TARGETNAME $_CHIPNAME.cpu adapter_khz 100 reset_config trst_and_srst separate trst_push_pull srst_open_drain adapter_nsrst_delay 1000 adapter_nsrst_assert_width 1000 jtag newtap $_CHIPNAME cpu -irlen 4 -expected-id 0x079264F3 target create $_TARGETNAME arm926ejs -endian $_ENDIAN -chain-position ----------------- Now I'm not sure if this is the only jtag tap but the manual only mention the id 0x079264F3 and when trying auto detect that is the only one shown. The other imx target files that exist in OCD have more than one TAP in the config files so I'm a bit concerned this is wrong. One thing that is not working very well is the halt command. if I do a reset/reset init I can never do the halt it just times out. But if I do a jtag_init then I can do a halt. why is this ?? ----------- > reset JTAG tap: imx28.cpu tap/device found: 0x079264f3 (mfg: 0x279, part: 0x7926, ver: 0x0) NOTE! DCC downloads have not been enabled, defaulting to slow memory writes. Type 'help dcc'. NOTE! Severe performance degradation without working memory enabled. NOTE! Severe performance degradation without fast memory access enabled. Type 'help fast'. > halt Halt timed out, wake up GDB. timed out while waiting for target halted in procedure 'halt' > > > reset init JTAG tap: imx28.cpu tap/device found: 0x079264f3 (mfg: 0x279, part: 0x7926, ver: 0x0) timed out while waiting for target halted TARGET: imx28.cpu - Not halted in procedure 'reset' > halt Halt timed out, wake up GDB. timed out while waiting for target halted in procedure 'halt' > > > > jtag_init JTAG tap: imx28.cpu tap/device found: 0x079264f3 (mfg: 0x279, part: 0x7926, ver: 0x0) > halt target state: halted target halted in ARM state due to debug-request, current mode: Supervisor cpsr: 0x600000d3 pc: 0xfffe0b00 MMU: disabled, D-Cache: disabled, I-Cache: disabled ----------- _______________________________________________ Openocd-development mailing list Openocd-development@lists.berlios.de https://lists.berlios.de/mailman/listinfo/openocd-development
