Re: JTAG howto? WAS: RE: [Gumstix-users] Corrupted flash

[Gordon K. <go...@gu...>]

Pauley, John C wrote:
>  U-Boot 1.1.2 (Nov 17 2005 - 10:47:56)
>
> *** Welcome to Gumstix ***
>
> U-Boot code: A3F00000 -> A3F238CC  BSS: -> A3F58970
> RAM Configuration:
> Bank #0: a0000000 64 MB
> Flash:  0 kB
> Using default environment
>
> SMC91C1111-0
> Hit any key to stop autoboot:  0 
> GUM>
>
> After downloading u-boot.bin via kermit:
>
> GUM> echo ${filesize}
> 238CC
> GUM>
>
> But 0kB flash does not look right.  BTW, the gumstix is a basix 400bt...
>
>   

We have found only one reliable way to produce:

   Flash:  0 kB

and it involves a 4 foot vertical drop onto concrete.   Any chance that 
happened?  My conjecture is that since the flash chip is the edge-most 
chip on the board it is the most likely to have a shock break a connection.

Gordon