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Re: It's very strange about the TFTP load code!


On Sat, 2005-06-18 at 23:05 +0800, twomol wrote:
> Allïhelloï
>          I'm using mx1ads with redboot downloaded from freescale.com. May be I am	supposed to consult freescale not here. But it's about the common tftp code.So if
> any one could help ,I'll be very appreciate!
> 		I can't use tftp to load file from host:
> -----------------------------------------------------
> 		RedBoot> load -r -b 0x50000 redboot.bin
> 		Using default protocol (TFTP)
> 		Can't load 'redboot.bin': illegal TFTP operation
> -----------------------------------------------------------
> 		I checked the source , "There is no function set"  equal to "TFTP_EBADOP" defined in tftp_surppot.h. but I didn't find any function have code to set the feild 'err' of 'getc_info' with this value.
> 		I found that  the error messge is printed by the following code (in redboot_gec_init):
> 
> 		res = (funcs->open)(info, &getc_info.err);    
>    		 if (res < 0) {
>         diag_printf("Can't load '%s': %s\n", info->filename, (funcs->error)(getc_info.err));
>             return res;
>          }
>     
>     I didn't found any code in the tftp_stream_open function set the  err with TFTP_EBADOP.
>     I use multiice-gdb-server and insight to debug this code , from insight ,I found that sometims funcs->open's value isn't
>  the address of  tftp_stream_open, and it's not a fixed value.  
>      After return from  funcs->open, the getc_info.err become 4 (i.e.TFTP_EBADOP).
>      My toolchain is the one downloaded from ecoscentirc.com
> 	 I can load file use xmodem and http protocol.
>       Any ideas?
>      Much Thanks!

This sounds like a TFTP server problem.  It may be permissions
as Andrew suggested, or some TFTP servers insist that you use 
the entire path name, starting with a "/"  Check your TFTP
server setup.

-- 
------------------------------------------------------------
Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
------------------------------------------------------------


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