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 crashes and burns:
U-Boot> go 0x10400000 ## Starting application at 0x10400000 ...
*** Unhandled exception 3 at PC=0xea000000 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 c: ec 0e 03 2e ld.w lr,r6[lr<<0x2]
10: 5d 1e icall lr
printf ("Example expects ABI version %d\n", XF_VERSION); printf ("Actual U-Boot ABI version %d\n", (int)get_version());
printf ("Hello World\n");
printf ("argc = %d\n", argc); 12: 30 07 mov r7,0
Any thoughts that you guys had would be wonderful.
Thanks in advance,
Martin Mroz martinmroz@gmail.com