From: Wolfgang Denk <wd@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot-Users] Memory Testing (Flash,EEPROM)
Date: Wed, 27 Oct 2004 20:48:48 +0200 [thread overview]
Message-ID: <20041027184853.1ABB0C1430@atlas.denx.de> (raw)
In-Reply-To: Your message of "Wed, 27 Oct 2004 19:14:34 +0200." <1CFEB358338412458B21FAA0D78FE86D4F0C68@rennsmail02.eu.thmulti.com>
In message <1CFEB358338412458B21FAA0D78FE86D4F0C68@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
--
See us @ Embedded/Electronica Munich, Nov 09 - 12, Hall A.6 Booth 513
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
Successful and fortunate crime is called virtue. - Seneca
next prev parent reply other threads:[~2004-10-27 18:48 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-10-27 17:14 [U-Boot-Users] Memory Testing (Flash,EEPROM) Fillod Stephane
2004-10-27 18:48 ` Wolfgang Denk [this message]
-- strict thread matches above, loose matches on Subject: below --
2004-10-27 11:53 Vikrant_Basotra
2004-10-27 14:27 ` Wolfgang Denk
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