Re: [ECOS] One question..

[Gary Thomas <gary at mlbassoc dot com>]

On Sat, 2004-06-26 at 02:59, anton yakovlev wrote:
> Gary Thomas wrote:
> 
> >On Fri, 2004-06-25 at 02:09, anton yakovlev wrote:
> >  
> >
> >>Hi, all!
> >>
> >>I have a programm:
> >>=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
> >>#include <stdio.h>
> >>#include <cyg/kernel/kapi.h>
> >>
> >>void first(cyg_addrword_t threadData) {
> >>
> >>    (void) threadData;
> >>    printf("the first thread\n");
> >>
> >>}
> >>
> >>static char stack_a[4096];
> >>static cyg_thread thread_a;
> >>static cyg_handle_t handle_a;
> >>
> >>void cyg_user_start(void) {
> >>   
> >>    cyg_thread_create(10, first, 0, "first", stack_a, 4096, &handle_a, 
> >>&thread_a);
> >>    cyg_thread_resume(handle_a);
> >>
> >>}
> >>=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
> >>but when i try to executing it, i see only following:
> >>=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
> >>RedBoot> load -r -m y -b 0x205000
> >>Raw file loaded 0x00205000-0x00210500
> >>xyzModem - CRC mode, 363(SOH)/0(STX)/0(CAN) packets, 3 retries
> >>RedBoot> go 0x205000
> >>    
> >>
> >
> >Why did you specify raw mode (-r)?  When you do this, RedBoot loads the 
> >file directly into memory without any processing at all, probably not
> >what you want to do.
> >  
> >
> Because I upload exactly raw image.. neither elf-image, nor s-record..

That's fine (many people make mistakes here, but you've not). 

Was the program linked to load at 0x205000?  eCos programs are *not* 
position independent and must be loaded to memory that matches how they
are built/linked.

> 
> >How did you create the file that's being downloaded?  Is it an 
> >executable (ELF) image?  or possibly S-records?
> >  
> >
>  From elf-image using objcopy..
> 
> >>=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
> >>i.e. thread want not to start.. Why so?..
> >>
> >>I have Falcom fx35xxlsi (based on NEC V850 processors family) platform 
> >>with eCos 2.0.. I build eCos from the sources.. Maybe I have broken 
> >>configuration?..
> >>    
> >>
-- 
Gary Thomas <gary@mlbassoc.com>
MLB Associates


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