[U-Boot-Users] Memory Testing (Flash,EEPROM)

Wolfgang Denk wd at denx.de
Wed Oct 27 20:48:48 CEST 2004


In message <1CFEB358338412458B21FAA0D78FE86D4F0C68 at rennsmail02.eu.thmulti.com> you wrote:
> Wolfgang Denk wrote:
> > It makes no real sense to perform a write testing  on  flash  memory,
> > for  example,  as  you must erase the flash to write it, and erase it
> > again to write it again, and the fact that you can write it now is no
> > guarantee that it is still erasable the next time.
> 
> IMHO, the point is not to test the chip, but to test the wires to the chip,
> for industrial purpose.

You don't want to do this  in  software  -  software  can  only  test
certain  functions,  but not all connections. For that you want to do
standard hardware verification procedures like boundary scan etc.

> For the other matters, the customer will find it out by himself anyway :*)

Indeed ;-)

Best regards,

Wolfgang Denk

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