Trying to get OpenPCD working

[Milosch Meriac]

Dear Stephan,

Stephan Karpischek wrote:
> To me the device seems broken. Are there any chances to get it working?
> Any ideas what to try next? Does it make sense to get a debug cable? Or
> should I try to exchange it and get another one?
> 
> Thanks in advance for any answer or help.

Please try the following:

   1. unplug the USB cable and insert the SAM-BA jumper (Pin 1.2)
   2. attach the USB cable
   3. wait ten seconds
   4. unplug the USB cable
   5. remove the SAM-BA jumper
   6. attach the USB cable
   7. wait several seconds to allow the device to be detected by Linux

Please do a lsusb afterwards - is the device now properly detected ? If
yes - I will tell you further steps needed.

Also you maybe flashed a wrong image into OpenPCD - so possibly it
crashed and accidentally locked itself (lock bits). In this case you
have to reset the device first by connecting the ERASE testpad to 3V3
before doing the SAM-BA approach.

Please also try to use a self powered USB hub with a dedicated power
supply for OpenPCD - in some cases the USB interface doesn't provide
enough power for normal operation.

Till now no one bricked an OpenPCD reader yet - so the likelihood is
high that you get it running again.

Attached you'll find a know-good SAM-BA image (for flashing with the
sam7 tool - *not* dfutils).

Milosch
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