RE: [ECOS] RE: networking support for my eCos application

[C B <csb_80@hotmail.com>]

I have been running via the console so hopefully this won't be an issue for me going forward.  I did find my problem and posted what I found.  Turns out that in porting over my older configs I didn't realize that the new var_io.h was redefining things I had already defined.
 
Thanks for the constructive feedback Gary!



> Date: Mon, 12 Nov 2007 05:27:01 -0700
> From: gary@mlbassoc.com
> To: csb_80@hotmail.com
> CC: ecos-discuss@ecos.sourceware.org
> Subject: Re: [ECOS] RE: networking support for my eCos application
>
> C B wrote:
>>
>> Brilliant! Changing the CYG_HAL_STARTUP to RAM seems to resolve the issue I was having. However, rather than seeing the expected output from my simple HelloWorld program that I see with my older version of eCos I get the following output:
>>
>> ------------------------- begin output -------------------------
>> RedBoot> go 0x20020040
>> [cyg_net_init] Init: mbinit(0x00000000)
>> [cyg_net_init] Init: cyg_net_init_devs(0x00000000)
>> Init device 'dm9000_eth0'
>> -------------------------- end output ---------------------------
>>
>> Thoughts?
>
> How did you connect to RedBoot to initiate this session? If it's
> via the network, then you are probably experiencing problems due to
> the fact that RedBoot and your application have to share the same
> hardware. If this is the case, you'll need (somehow) to arrange that
> the RedBoot connection and your application use separate IP addresses
> (this is part of how RedBoot can separate what traffic goes to the
> debug session and what goes to the application).
>
> Another problem which can come up [again when you connect to RedBoot
> via network] is when the driver in the eCos application tries to print
> debug messages *while the driver/hardware is being initialized*. In
> this case, it's wise to make sure that CYGPKG_NET_FORCE_SERIAL_CONSOLE
> is set which will force any debug messages which happen during system
> initialization to a serial console (keeps the RedBoot network driver
> from getting confused). Try running your application from a serial
> console - if it works, then this is an issue for you.
>
>>
>>> Date: Fri, 9 Nov 2007 19:55:42 +0100
>>> From: andrew@lunn.ch
>>> To: csb_80@hotmail.com
>>> CC: ecos-discuss@ecos.sourceware.org
>>> Subject: Re: [ECOS] RE: networking support for my eCos application
>>>
>>>> MEMORY
>>>> {
>>>> ram : ORIGIN = 0x20000000, LENGTH = 0x00C00000
>>>> rom : ORIGIN = 0x20C00000, LENGTH = 0x00400000
>>>> sram : ORIGIN = 0x00000100, LENGTH = 0x00023F00
>>>> }
>>>>
>>>> versus this for the older (working) version:
>>>>
>>>> MEMORY
>>>> {
>>>> ram : ORIGIN = 0x20000000, LENGTH = 0x02000000
>>>> sram : ORIGIN = 0x00000000, LENGTH = 0x00024000
>>>> }
>>>>
>>>>
>>>> Can anyone provide a little clarification on how these files are generated and what I may have screwed up in my config.
>>> The linker file is derived from you hal include/pkgconf/*.ldi files.
>>>
>>> My guess is your working binary is a RAM startup application, but your
>>> new application is a ROM startup. Take a look at the value of
>>> CYG_HAL_STARTUP in your working and none working configuration.
>>>
>>> Andrew
>>
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>
>
> --
> ------------------------------------------------------------
> Gary Thomas | Consulting for the
> MLB Associates | Embedded world
> ------------------------------------------------------------

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