[U-Boot-Users] Loads function and flow control.

Frank Smith smith at amirix.com
Mon May 26 18:37:35 CEST 2003

I can't say off the top of my head.  I'm using a 16 bit strataflash
E28F128J3A in x8 mode, with a custom version of strataflash.c, on
a custom-built Virtex-II Pro development board, with a *very* hacked
down version of PPCboot that runs from about 50K of block RAM,
so there are lots of places where I might have mucked things up.
An 'interesting' configuration....

I hacked it to work by changing the loads code to echo a newline after 
the write to the flash has completed, and configuring kermit to
wait until it sees a newline before it sends a new line.  This
works for me, so I stopped looking into the problem.


> -----Original Message-----
> From: wd at denx.de [mailto:wd at denx.de]
> Sent: May 26, 2003 1:16 PM
> To: Frank Smith
> Cc: u-boot-users at lists.sourceforge.net
> Subject: Re: [U-Boot-Users] Loads function and flow control. 
> In message <03May26.125207adt.7313 at dragon.appliedmicro.ns.ca> you wrote:
> > 
> > What about in the case where you are loads-ing directly to a flash
> > region?  I ran across this problem recently (albeit it with 
> PPCBoot-2.0.0).
> It worked fine in all configurations I have  tested.  Assume  8N1  at
> 115200 bps so you get a maximum of 11520 cps or about 87 us per byte.
> How long does your flash chip need for a byte to program?
> Wolfgang Denk
> -- 
> Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
> Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd at denx.de
> ...the increased productivity fostered by a friendly environment  and
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> software.               - M. D. McIlroy, E. N. Pinson and B. A. Tague

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