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no ST-Link detected *sometimes

pauldeboer9
Associate
Posted on September 23, 2016 at 19:24

I'm using the ST-Link V2 as a programmer repeatedly.  Sometimes it returns no ST-Link detected when I try to program.  Unplugging the device then plugging it in again solves the problem.

When its in this state, I can still see the device in device manager, and it seems fine.  I happened to have the device on a powered USB hub, so I unplugged the hub from the PC, which left the ST-LinkV2 still powered and then plugged it back in.  It behaved normally.  Anyone have any ideas how to fix it when it gets like this or how to prevent it from getting to this state?

Driver version 1.1.0.0

Firmware version V2.J27.S6 STM32+STM8 Debugger

Paul

#stlink
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