On Fri, Jul 8, 2011 at 10:00 PM, Xiaofan Chen <xiaof...@gmail.com> wrote: > On Fri, Jul 8, 2011 at 9:21 PM, Eric Wetzel <thewet...@gmail.com> wrote: >> >> 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.
Yes once you upgrade/downgrade the J-Link firmware, it will re-enumerate and therefore you will need to re-install the libusb-win32 device filter. But it is quite convenient with the GUI filter wizard. > Yes I can reproduce the issue with Luminary EK-LM3S1968 board, with the > latest firmware it failed just like your previous post. Then if I downgrade > the > firmware to 4.08i and OpenOCD will work. > > For those who want to downgrade the firmware, here is the doc. > http://www.segger.com/cms/admin/uploads/productDocs/UM08001_JLinkARM.pdf > (Section 9.5) > > This is a known problem. > http://www.segger2.com/index.php?page=Thread&threadID=869 > http://comments.gmane.org/gmane.comp.debugging.openocd.devel/16831 > http://www.segger2.com/index.php?page=Thread&threadID=707 > (4.10i works, 4.22 failed) BTW, this seems to only affect V8 J-Link, I tried a V7 with the latest J-Link firmware and it works with OpenOCD. -- Xiaofan _______________________________________________ Openocd-development mailing list Openocd-development@lists.berlios.de https://lists.berlios.de/mailman/listinfo/openocd-development
