[ECOS] How to handle it???

zheng wujun wj_zheng10@hotmail.com
Wed Dec 3 01:25:00 GMT 2003


Thanks RandyLin:
       Now my redboot can work,and I can use redboot command "load ......-m 
tftp....."to download app to snds board.
       Howerer, if not using -r option,the error as displayed "***Abort! 
Attempt to load ELF data to address: 0x00020000 which is not in RAM".
       If using  -r option,app looks like to be downloaded correctly,but the 
display is "Raw file loaded 0x00300000-0x003c6116, assumed entry at 
0x00300000",and then if  using redboot command "go 0x00300000" to execute 
the app,the redboot will display some strange strings as
" 
$T0a0f:86000000;0d:80060200;#17$T0a0f:86000000;0d:80060200;#17$T0a0f:8600"on 
console.

to above,the config is SECTION_fixed_vectors (ram, 0x20, LMA_EQ_VMA)   and 
SECTION_rom_vectors (ram, 0x20000, LMA_EQ_VMA) in file mlt_arm_snds_ram.ldi 
and  SECTION_fixed_vectors (ram, 0x20, LMA_EQ_VMA)  and  SECTION_data (ram, 
0x20000, FOLLOWING (.gcc_except_table)) in mlt_arm_snds_rom.ldi

If using arm-elf-gdb to download app,the steps is as following:
1 [root@zheng root]#arm-elf-gdb
2(gdb) target remote /dev/ttyS0
Remote debugging using /dev/ttyS0
0x01804b30 in ?? ()
(gdb) load /tftpboot/hello
Loading section .rom_vectors, size 0x40 lma 0x20000
Loading section .text, size 0xfe00 lma 0x20040
Ignoring packet error, continuing...
Ignoring packet error, continuing...
Ignoring packet error, continuing...

and gdb use the same serial line as the hyperspatial,the baudrate is 38400.


Why did these error happen?Can some one have good idea to handle it?

Thanks a lot!

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