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Re: Programming flash?
- To: Paul Pham <ppham at MIT dot EDU>
- Subject: Re: [ECOS] Programming flash?
- From: Grant Edwards <grante at visi dot com>
- Date: Thu, 25 Jan 2001 09:24:47 -0600
- Cc: ecos-discuss at sourceware dot cygnus dot com
- References: <NEBBLDBMIIDEJLLIEJFBCEJECAAA.ppham@mit.edu>
On Wed, Jan 24, 2001 at 10:06:19PM -0500, Paul Pham wrote:
> My team and I are designing a board around the Samsung
> S3C3410x, based on the ARM7TDMI, booting off Flash memory. Does
> anyone have any recommendations for ways to program Flash with
> only one serial port?
Assuming you've got working code in the flash to start with
(!), one generally downloads an application into RAM that burns
the flash.
> Also, does anyone know if the S3C3410x is little-endian or
> big-endian?
The CPU will operate in either big-endian or little-endian
mode. The external memory interface will operate in either big
or little endian mode. However, the internal registers and
peripherals are hooked up for big-endian mode.
See page 4-1 in the users manual.
In older versions of the part external memory worked only in
big-endian mode. But in the current parts, external memory will
work either way -- but it's sort of moot since internal
peripherals are big-endian.
--
Grant Edwards
grante@visi.com