On Thu, Jul 7, 2011 at 8:27 AM, Xiaofan Chen <[email protected]> wrote:
> On Thu, Jul 7, 2011 at 8:23 PM, Eric Wetzel <[email protected]> wrote:
>> Alright, I uninstalled libusb-win32 0.1 and installed 1.2.4.0, and
>> installed filters for the J-Link device. Still the same result.
>>
>> I tried Freddie's binary. Still the same result.
>>
>> It is beginning to look like a firmware version problem. I guess I'm
>> disappointed, but not actually surprised, that it's not compliant with
>> Segger's J-Link documentation:
>> http://www.segger.com/cms/admin/uploads/productDocs/RM08001_JLinkUSBProtocol.pdf
>
> You should be able downgrade the firmware with Segger J-Link
> utilities. Then you can try again.
> http://www.segger.com/cms/j-link-older-versions.html
>
> --
> Xiaofan
I downloaded the oldest version available (v4.00) from the page
Xiaofan provided, and downgraded the firmware. I had to reinstall my
libusb filter for the J-Link, but I'm not getting the same USB read
problems. Actually, it looks like it's working.
$ openocd.exe
Open On-Chip Debugger 0.5.0-dev (2011-07-07-08:00)
Licensed under GNU GPL v2
For bug reports, read
http://openocd.berlios.de/doc/doxygen/bugs.html
Warn : Adapter driver 'jlink' did not declare which transports it
allows; assuming legacy JTAG-only
Info : only one transport option; autoselect 'jtag'
RCLK - adaptive
fast memory access is enabled
dcc downloads are enabled
force hard breakpoints
use of EmbeddedICE dbgrq instead of breakpoint for target halt enabled
Info : J-Link initialization started / target CPU reset initiated
Info : J-Link ARM V8 compiled DEC 16 2008 20:15:16
Info : J-Link caps 0x39ff7bbf
Info : J-Link hw version 80000
Info : J-Link hw type J-Link
Info : J-Link max mem block 9224
Info : J-Link configuration
Info : USB-Address: 0x0
Info : Kickstart power on JTAG-pin 19: 0x0
Info : Vref = 3.313 TCK = 1 TDI = 0 TDO = 1 TMS = 0 SRST = 0 TRST = 0
Info : J-Link JTAG Interface ready
Info : RCLK (adaptive clock speed)
Info : JTAG tap: omapl138.jrc tap/device found: 0x0b7d102f (mfg:
0x017, part: 0xb7d1, ver: 0x0)
Info : JTAG tap: omapl138.etb enabled
Info : JTAG tap: omapl138.arm enabled
Info : Embedded ICE version 6
Info : omapl138.arm: hardware has 2 breakpoint/watchpoint units
Info : ETM v1.3
Thanks,
~Eric
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