Re: SV: [ECOS] Redboot Load Error

[Henrik Mau <Henrik dot Mau at sli-institute dot ac dot uk>]

Gary Thomas wrote:

> ... back on the mailing list so that all may benefit.
>
> On Fri, 2004-06-25 at 04:00, Henrik Mau wrote:
>  
>
> > Gary Thomas wrote:
> >
> >    
> >
> > > On Thu, 2004-06-24 at 14:06, Henrik Mau wrote:
> > >
> > >
> > >      
> > >
> > > >   
> > > >
> > > >        
> > > >
> > > > > > When loading an application using the load command in Redboot the
> > > > > >       
> > > > > >
> > > > > >            
> > > > first
> > > >   
> > > >
> > > >        
> > > >
> > > > > > 400 addresses in the srec file do not get copied to the destination
> > > > > > memory. That is, what is listed in the srec file to reside in
> > > > > >       
> > > > > >
> > > > > >            
> > > > 0x40400
> > > >        
>
> Ah, but according to the file you sent, the data *does* start at 
> 0x40000.  Looking carefully at the first few records:
>
>  
>
> > S012000074776F746872656164732E73726563CD
> >    
>
> This record holds the name of the file "twothreads.srec"
>
>  
>
> > S21404000018F09FE518F09FE518F09FE518F09FE5B7
> >    
>
> This record loads data into 0x040000..0x04000F
>
>  
>
> > S21404001018F09FE50000000018F09FE518F09FE533
> >    
>
> This one loads data into 0x040010..0x04001F
>
> The basic format of these records is:
>  S21404000018F09FE518F09FE518F09FE518F09FE5B7
>  
>  S2 - Loadable data with 3 byte address
>  14 - Record is 20 bytes (0x14) long
>  040000 - Starting address of data
>  18F09FE518F09FE518F09FE518F09FE5 - 16 bytes of data in hex
>  B7 - checksum for the record
>
> Why did you think the data should be at 0x40400?
Sorry, maybe I wasn't being very clear.
The data does get written to 0x40000, however it is not

S21404000018F09FE518F09FE518F09FE518F09FE5B7

that gets written to 0x40000, but instead the data that should be in 
0x40400.
I have checked some of the data and it seems as if 0x40000 - 0x403ff 
gets overwritten with the data from 0x40400 - 0x407ff

>  
>
> > > >   
> > > >
> > > >        
> > > >
> > > > > > gets copied to 0x40000.
> > > > > > Is there a known fix to this problem?
> > > > > >       
> > > > > >
> > > > > >            
> > > > > What command did you use?  This problem has never been reported, so
> > > > >     
> > > > >
> > > > >          
> > > > most
> > > >   
> > > >
> > > >        
> > > >
> > > > > likely there is something else to uncover here.
> > > > >     
> > > > >
> > > > >          
> > > > I was using Hyperterminal on a Windows2000 and the command was
> > > >
> > > > load -v -m yMODEM
> > > >
> > > > I also tried
> > > >
> > > > load -m yMODEM
> > > >
> > > > which gave the same result.
> > > >   
> > > >
> > > >        
> > > The 'load' command with no options will only put data where the S-record
> > > file indicates, so I'm confused about your error.
> > >
> > > Can you send the S-record file (privately to me is OK)?
> > >
> > >
> > >      
> > File is attached.
> >
> >    
> >
> > >      
>
>  



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