From: Wolfgang Denk <wd@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] Solved: U-Boot (porting) problem on MCF5445x board
Date: Tue, 19 Jan 2010 15:04:18 +0100 [thread overview]
Message-ID: <20100119140418.C857CC88AE@gemini.denx.de> (raw)
In-Reply-To: <20100119131716.GC23389@leila.ping.de>
Dear Wolfgang Wegner,
In message <20100119131716.GC23389@leila.ping.de> you wrote:
>
> The problem turned out to be a simple SDRAM setup problem.
> I had set "burst read to read/precharge delay" and "burst write
> to read/write/precharge delay" by 1 too low.
>
> Don't know how I messed these values up, but these lead to all
> memory accesses in single-step mode and via BDM to work correctly
> but gave erroneous results in real program execution.
>
> [note to self: in case of strange errors, always check memory
> interface. If triple-checked: check again...]
Congrats for fixing it - note that y ou are not the first one to
discover this. There is a reason why this topic has a top entry in the
FAQ.
Best regards,
Wolfgang Denk
--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
The use of COBOL cripples the mind; its teaching should, therefore,
be regarded as a criminal offense. - E. W. Dijkstra
prev parent reply other threads:[~2010-01-19 14:04 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-14 14:33 [U-Boot] U-Boot (porting) problem on MCF5445x board Wolfgang Wegner
2010-01-14 16:15 ` Wolfgang Wegner
2010-01-14 16:53 ` Wolfgang Wegner
2010-01-19 13:17 ` [U-Boot] Solved: " Wolfgang Wegner
2010-01-19 14:04 ` Wolfgang Denk [this message]
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