> Author: zwelch
> Date: 2009-07-06 12:34:33 +0200 (Mon, 06 Jul 2009) New Revision: 2471
> 
> Modified:
>    trunk/src/jtag/jlink.c
> Log:
> Gary Carlson <gcarl...@carlson-minot.com>:
> 
> Fix intermittent J-Link interface startup failures:
> - Use usb_reset to ensure selected dongle is in known good state.
> - Assert emulator reset durning status check to prevent 
> supurious failures.
> - Eliminate status check loop; not needed due to other fixes.
> 
> 

For info this breaks my v5 and v6 jlinks (tested stm32).
Not sure if any one else is having trouble?

Looks like the usb_reset is the culprit.
Im my opinion the code is incorrect as according to the docs the device will
need to be reopened after a reset.

Cheers
Spen
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