Hello everyone.
I try step by step debugging microcontroller iMX35 and do not understand a
couple things:
1. The microcontroller can run at the "Startup mode", about which the
documentation says: "... This mode is useful for software development using
JTAG-capable development tools. Upon reset the PC register will remain at
address 0x00000000 ...". But when I run OpenOCD, I see quite a different value
PC register. It also varies from time to time. Why?
2. When I start OpenOCD, I see the state of the processor "Abort". Is this
normal?
Thank you.
Log:
imp...@kb33 openocd]$ src/openocd -f /home/impatt/openocd.tcl
Open On-Chip Debugger 0.4.0-rc1-dev-00159-gbcc0122-dirty (2010-02-25-09:28)
For bug reports, read
http://openocd.berlios.de/doc/doxygen/bugs.html
jtag_nsrst_assert_width: 1
jtag_nsrst_delay: 1
jtag_ntrst_assert_width: 1
jtag_ntrst_delay: 1
Warn : imx35.sdma: nonstandard IR value
Warn : imx35.sdma: nonstandard IR mask
trst_and_srst separate srst_gates_jtag trst_open_drain srst_open_drain
Info : clock speed 500 kHz
Info : JTAG tap: imx35.etb tap/device found: 0x2b900f0f (mfg: 0x787, part:
0xb900, ver: 0x2)
Info : JTAG tap: imx35.cpu tap/device found: 0x07b3601d (mfg: 0x00e, part:
0x7b36, ver: 0x0)
Info : TAP imx35.sdma does not have IDCODE
Info : JTAG tap: imx35.sjc tap/device found: 0x0882601d (mfg: 0x00e, part:
0x8826, ver: 0x0)
Info : found ARM1136
Info : imx35.cpu: hardware has 6 breakpoints, 2 watchpoints
Warn : ETMv2+ support is incomplete
Info : ETM v3.1
Info : JTAG tap: imx35.etb tap/device found: 0x2b900f0f (mfg: 0x787, part:
0xb900, ver: 0x2)
Info : JTAG tap: imx35.cpu tap/device found: 0x07b3601d (mfg: 0x00e, part:
0x7b36, ver: 0x0)
Info : TAP imx35.sdma does not have IDCODE
Info : JTAG tap: imx35.sjc tap/device found: 0x0882601d (mfg: 0x00e, part:
0x8826, ver: 0x0)
Info : found ARM1136
Warn : imx35.cpu: ran after reset and before halt ...
target state: halted
target halted in ARM state due to debug-request, current mode: Abort
cpsr: 0x000001d7 pc: 0x1001ffd0
--
Regards,
Alexei Babich, circuit design engineer, Rezonans plc., Chelyabinsk, Russia
http://www.rez.ru
Jabber ID: imp...@jabber.ru
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