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Re: port to SH3 7729RSE01 board


Campbell Family wrote:
I'm new to eCos and to the SH3.  I am trying to use the existing eCos
platform for the 77x9SE01 to create a platform for the 7729RSE01.  The 7729R
runs at a faster speed than the 7709/7729, but the boards are otherwise
identical.  I compared the source code for the Hitachi-supplied ROM monitors
for both boards, and just found these differences: the setting in one of the
wait state registers, a WDT setup register setting and the frequency control
register setting.

I created a new eCos platform (using eCos 2.0 on Linux) with these changes
and was able to build and download a RedBoot image in Motorola-S format
sucessfully, but I can't get Redboot to work (no boot-up message broadcast
out the serial SCIF port on reset).  Any ideas about what I may have missed?

Not off-hand apart from obviously questioning whether there isn't really some other difference ;-). If you've got LEDs on your board you can toggle, you could try and use those to see how far through the startup it gets.


Jifl
--
eCosCentric    http://www.eCosCentric.com/    The eCos and RedBoot experts
--[ "You can complain because roses have thorns, or you ]--
--[  can rejoice because thorns have roses." -Lincoln   ]-- Opinions==mine


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