Debug board - giving up

Nils Faerber nils.faerber at kernelconcepts.de
Wed Mar 28 12:27:44 CEST 2007


Hmm.... just tried that too.
Still I get the "JTAG communication failure".

After powering the NEO I see a brief flicker of the backlight.
I tried attaching the USB cable to the debug board before and after
powering up the NEO - no go :(



Michael 'Mickey' Lauer schrieb:
> Nils, I can feel your pain.
> 
> Every time I bricked mine, it took a day or two to revive it.
> 
> Some reactivation tips here:
> 
> 0.) Detach any USB cables from the Neo.
> 1.) Be sure to have a fresh battery.
> 2.) Make sure the FPC is always firmly seated -- even a millimeter
> can make a difference :/
> 3.) Make sure the debug board is recognized properly and outputs
> "No JTAG devices found. Check cables and power"
> 
> 4.) To get it recognized by JTAG, the following steps almost always
> worked here:
> 
> 4.0): Remove FPC
> 4.1): Remove Battery
> 4.2): Wait 2 seconds
> 4.3): Reattach FPC
> 4.3): Reinsert Battery
> 4.4): Press and hold Neo Power button for two seconds
> 4.5): run openocd
> 
> Regards,
> 
> :M:
Cheers
  nils faerber

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