RE: [ECOS] Porting ecos 2.0 to CDB89712

[Gary Thomas <gary at chez-thomas dot org>]

On Thu, 2002-06-13 at 09:17, Ray Bozorg wrote:
> Gary,
> The board has 16M RAM.
> No there is no LCD on Board but It does have all the connection to connect
> an external LCD to it.  Which I have done that.
> Where can I get info on the SEB238.  I searched the net and did not find
> anything on this.  Is this Cirrus Logic Part Number?
> 

The SEB238 was a development board from Cogent which Cirrus Logic resold
as the EDB7312.  Look in the eCos tree - there is full sort in there for
it with pretty much the same layout.  AFAIK, the core is the same 
between the EP7312 and the CDB89712

> Thanks
> Ray Bozorg
> 
> -----Original Message-----
> From: Gary Thomas [mailto:gary@chez-thomas.org]
> Sent: Thursday, June 13, 2002 8:34 AM
> To: Ray Bozorg
> Cc: eCos Discussion
> Subject: Re: [ECOS] Porting ecos 2.0 to CDB89712
> 
> 
> On Thu, 2002-06-13 at 07:16, Ray Bozorg wrote:
> >
> > I am trying to port eCos 2.0 for CS89712 processor and eval board CDB89712
> > from
> > Cirrus Logic.
> > I have a very old patch that I am trying to use.
> > The question is that about the memory layout.
> > For EDB7312, for example ram portion (file: mlt_arm_edb7312_ram.h) see
> > attached.
> > Now I need to convert the mlt_arm_cdb89712_ram. file see attached to look
> > like the 7312 but I am not sure how to calculate or convert the
> > #define CYGMEM_SECTION_heap1_SIZE (0xfd0000 - (size_t) CYG_LABEL_NAME
> > (__heap1))
> > I am not sure where the 0xfd0000 came from can anyone help me on this
> issue?
> >
> 
> It came from 16M RAM, minus space for an LCD panel and the MMU tables.
> 
> How much RAM is on your new board?
> Does it have an LCD panel?
> 
> Note: you might want to look at the ep7312 support (SEB238) which is
> probably much closer to anything else for what you are doing.
> 
> 
> 
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