Re: [ECOS] Redboot on SE7751R board?

[Paul van Gool <paul dot vangool at rinconnetworks dot com>]

Well I've gotten a bit further now. I get output on my serial port now
through minicom. But it appears to be garbage. Most likely this is caused
by the fact the CPU clock is different from the SE7751 board 240MHz vs. 160
MHz) and some of the 'math' ecos is doing is wrong. I assume I have to
change settings like:

CYGHWR_HAL_SH_OOC_PLL_1
CYGHWR_HAL_SH_OOC_DIVIDER_PFC
etc.

They seem to define the ratios between CPU clock and peripheral clock.

Can anyone provide more insight?

Thanks.

Paul

On Tue, Jul 22, 2003 at 11:06:10AM -0700, Paul van Gool wrote:
> Hi,
> 
> has anybody been able to get Redboot running on the Hitachi SE7751R board.
> The board is similar to the SE7751 board. Diffs as far as I can tell are
> CPU clock (240MHz), doubling of instruction cache, and 8 instead of 4 DMA
> channels.
> 
> I build Redboot using the instructions in the eCOS user guide for the
> SE7751 board. I then flashed the image onto the board. According to the
> webpage, it should ue a starting address of A1000000, but I got 80000000.
> Which actually seems fine since that is where my flash starts.
> 
> But when I try to boot with Redboot the board just hangs and I get no
> output to the serial console.
> 
> Any ideas?
> 
> Thanks.
> 
> Paul
> -- 
> Paul van Gool                                               Rincon Networks
> paul.vangool@rinconnetworks.com                              (805)-705-1442
> 
> -- 
> Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos
> and search the list archive: http://sources.redhat.com/ml/ecos-discuss

-- 
Paul van Gool                                               Rincon Networks
paul.vangool@rinconnetworks.com                              (805)-705-1442

-- 
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