Martin Mroz wrote:
Hello, I wanted to write in to ask if there was something I was doing wrong, with respect to running standalone applications on U-Boot on an ATNGW100 (AVR32). I uploaded one of the test programs (hello_world) to the SDRAM (0x10000000) and verified the contents of memory, as compared to the source file and it matched up perfectly. However when I attempt to "go 0x10000000" it just
^ One of these things is not like the other
crashes and burns:
U-Boot> go 0x10400000
^ One of these things doesn't belong
## Starting application at 0x10400000 ...
^
*** Unhandled exception 3 at PC=0xea000000
^^^^^^^^ If you guessed this thing is not like the others...
Bus error at address 0x902901ff pc: ea000000 lr: 10400012 sp: 11f6cb2c r12: 000000ea r11: 11f6ce90 r10: 11f6ce90 r9: 10400000 r8: 000000c3 r7: 00000002 r6: 11fc97ec r5: 11f6cfa0 r4: 0000895c r3: 11f6ce90 r2: 11f6ce90 r1: 00000000 r0: 00000000 Flags: qvnZc Mode bits: hrje....g CPU Mode: Supervisor
Stack pointer seems bogus, won't do stack dump Unhandled exception ?
LR=0x10400012 means that the error occured at:
/* Print the ABI version */ app_startup(argv); 4: 16 9c mov r12,r11 6: 16 93 mov r3,r11 8: e0 6e 00 00 mov lr,0
This looks like an unlinked disassembly of the .o which means that the 00 00 argument is not real. You cannot tell much from this.
Check the FAQ, it probably applies: http://www.denx.de/wiki/view/DULG/MyStandaloneProgramDoesNotWork
Good luck, gvb