This is the mail archive of the ecos-discuss@sourceware.org mailing list for the eCos project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

Re: small custom bootloader to start an app stored in flash


>>> 4. Try starting your application (0x08020000) from the debugger
>>> directly, see if you get the printf.
>>
>> ...
>> (gdb) load
>> Loading section .rom_vectors, size 0x8 lma 0x8020000
>> Loading section .ARM.extab, size 0x3c lma 0x8020008
>> Loading section .ARM.exidx, size 0xc8 lma 0x8020048
>> Loading section .text, size 0x586c lma 0x8020110
>> Loading section .rodata, size 0x10d lma 0x8025980
>> Loading section .data, size 0x268 lma 0x8025a98
>> Start address 0x8020110, load size 23789
>> Transfer rate: 3 KB/sec, 3398 bytes/write.
>> (gdb) next
>> Cannot find bounds of current function
>> ...
>
> Does it display the printf if you continue? If not, this confirms the
> theory that the application does not start correctly from its start
> address.

To gather more evidence, in GDB, can you disassemble the code from
0x08020000 to 0x08020008 ?

(gdb) disas 0x08020000, 0x08020008

-- 
Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos
and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]