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Re: a silly question about the __exception_handlers
- From: Roland CaÃebohm <roland dot cassebohm at VisionSystems dot de>
- To: ecos-discuss at ecos dot sourceware dot org
- Cc: "twomol" <twomol at bj1860 dot net>
- Date: Fri, 26 Nov 2004 09:56:29 +0100
- Subject: Re: [ECOS] a silly question about the __exception_handlers
- Organization: Vision Systems GmbH
- References: <20041126032144.CAQ10457.fep1.bj1860.net@twomol>
Hi,
isn't #define CYGSEM_HAL_ROM_RESET_USES_JUMP missing in
hal_platform_setup.h?
In the platforms snds and aim711 it is there and they are very
semilar and have the same processor.
Regards,
Roland
Am Freitag, 26. November 2004 04:42 schrieb twomol:
> hello
>
> I use E7T to describe my question.On E7Tïwhen reset ïthe
> address of rom/flash bank0 is mapped from 0x0 to 0x2000000.
> I use ecos configtool build a redboot.bin using E7T
> templet(ROM startup).At the begining of the file is the
> __exception_handlers. The first statment of the file is
> :ldr pc,[pc, #24];0x20 The conetent in 0x20 is 0x1820040.If
> I burn the redboot.bin in the rom/flash bank0,the board
> reset,begin to execute the first statment "ldr pc,[pc,
> #24]",then the value of PC become 0x1820040.But at this
> moment the address of 0x1820040 can't be accessed,because
> the memory haven't be remaped.
>
> Does it right?Or I'm too stupid to miss something?
> Thanks very much!^_^
>
>
>
>
>
> ããããããããtwomol
> ããããããããtwomol@bj1860.net
> ãããããããããã2004-11-26
--
___________________________________________________
VS Vision Systems GmbH, Industrial Image Processing
Dipl.-Ing. Roland CaÃebohm
Aspelohe 27A, D-22848 Norderstedt, Germany
http://www.visionsystems.de
___________________________________________________
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