Re: [ECOS] ROMFS help needed

["Gary Thomas" <gary at mlbassoc dot com>]

Anthony Tonizzo said:
> Hi:
>
> I am trying to add ROMFS support to my ecos "bag of
> tricks". I have added the ROM file system to my
> configuration file, and checked the "Build ROMFS
> tests" option. Then I begun to copy portions of the
> fileio1.c program. In particular I copied the mount table
> entry:
>
> MTAB_ENTRY( romfs_mte1,
>             "/",
>             "romfs",
>             "",
>             (CYG_ADDRWORD) &filedata[0] );
>
> and then, right on top of my cyg_user_start() I placed
> the following code:
>
>     DIR *dirp;
>     unsigned char *dir_name = "/";
> ...
>     dirp = opendir( dir_name );
>
> Unfortunately the call fails and after a few days of
> this I am out of ideas. I tried single stepping into
> the thing and it appears that the mount table is empty:
> That is odd, because I have defined its only entry. Or
> perhaps I just do not know what I am doing :)
>
> The fileio1.c program does not seem to mount the ROMFS
> drive prior to using it. I wonder if this is appropriate.
>
> Any wisdom to share?

Look at the MicroWindows demo programs I wrote - they can use ROMFS.

The main thing I remember is that your "ROM" data needs to be 32 byte
aligned (the ROMFS wants it that way for some reason)


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