Re: [ECOS] Re: ecos-discuss Digest 26 May 2004 22:08:35 -0000 Issue 1610

[kneep <caozhiyuan at hotmail dot com>]

Dear peng,
	Your configuration seems not to have problems.
	I am assuming that you have read through the schematic of your
board. I suggest you skim the AMD flash driver to find out if there are
any macros that you need to define while the author of driver did not.
Some macros depends on the implementation of your board, say
CYGNUM_FLASH_16AS8 and so on. If you do not define or undefine these
macros correctly, maybe you are making your software read an empty
address and surely it can not get the right identification code of your
flash variant though your configuration is OK.

On Mon, 31 May 2004 11:20:59 +0800 (CST)

"peng"<crocodilian@21cn.com> wrote:

> > hi,
>    thanks for your advice,but I am sorry that I still need your help.
>    I still do not solve my question "driver init failed: Driver does not support device"and"FLASH: 0x00000000 - 0x00000001, 0 blocks of 0x00000000 bytes each."
>    I checked my .ecc file like what you said in the letter.the following contents in my .ecc file are:
>   1:    # This value cannot be modified here.
>     # Flavor: booldata
>     # Current value: 1 current
>     # Requires:  CYGINT_DEVS_FLASH_AMD_VARIANTS != 0 
>     #     CYGINT_DEVS_FLASH_AMD_VARIANTS == 1
>     #   --> 1
> 
>     # The following properties are affected by this value
>     # package CYGPKG_DEVS_FLASH_EB40
>     #     Requires: CYGPKG_DEVS_FLASH_AMD_AM29XXXXX
>   2.# Implemented by CYGHWR_DEVS_FLASH_AMD_AM29F800, active, enabled
>   3.# AMD AM29F800 flash memory support
> # When this option is enabled, the AMD flash driver will be
> # able to recognize and handle the AM29F800
> # part in the family.
> #
> cdl_option CYGHWR_DEVS_FLASH_AMD_AM29F800 {
>     # Flavor: bool
>     user_value 1
>     # value_source user
>     # Default value: 0
> 
>     # The following properties are affected by this value
>     # package CYGPKG_DEVS_FLASH_EB40
>     #     Requires: CYGHWR_DEVS_FLASH_AMD_AM29F800
> };
>   thank you again,I think the above contents maybe let you analyse my question and tell my how to do it!
>   best regards
>   corcodilian
>   >  
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Best Regards,
-- 
kneep <caozhiyuan@hotmail.com>



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