Hi all,
I'm developing little project on nrf51 dongle(pca10031). After few succeses now I have big failure which stops my work.
How my environment looks like: Ubuntu 14.04, JLink V5.03h, arm-none-eabi 4.9.3 20141119. 1 week ago everything works fine.
I could not load any software on nrf51. For example here is ble_central/ble_app_hrs_c:
Im loading whole software through gdb:
(gdb) symbol-file ./_build/nrf51422_xxac_s120.out
Reading symbols from ./_build/nrf51422_xxac_s120.out...done.
(gdb) exec-file ./_build/nrf51422_xxac_s120.hex
(gdb) target remote localhost:2331
Remote debugging using localhost:2331
0x20000386 in ?? ()
(gdb) monitor halt
(gdb) monitor reset
Resetting target
(gdb) load
Loading section .sec1, size 0x3000 lma 0x1d000
Loading section .sec2, size 0x4510 lma 0x20000
Start address 0x22f60, load size 29968
Transfer rate: 70 KB/sec, 3746 bytes/write.
(gdb) b main
Breakpoint 1 at 0x20f5c: examples/ble_central/ble_app_hrs_c/main.c, line 860.
(gdb) c
Continuing.
Program received signal SIGTRAP, Trace/breakpoint trap.
0xfffffffe in ?? ()
(gdb) bt
0 0xfffffffe in ?? ()
1 <signal handler called>
2 0x00000c00 in ?? ()
3 0xe7f8461c in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)
When I look into Jlink:
~ # > sudo JLinkExe -device nrf51822_xxaa -if swd -speed 4000
J-Link>h
PC = FFFFFFFE, CycleCnt = 00000000
R0 = FFFFFFFF, R1 = FFFFFFFF, R2 = FFFFFFFF, R3 = FFFFFFFF
R4 = FFFFFFFF, R5 = FFFFFFFF, R6 = FFFFFFFF, R7 = FFFFFFFF
R8 = FFFFFFFF, R9 = FFFFFFFF, R10= FFFFFFFF, R11= FFFFFFFF
R12= FFFFFFFF
SP(R13)= FFFFFFFC, MSP= FFFFFFFC, PSP= FFFFFFFC, R14(LR) = FFFFFFFF
XPSR = C1000000: APSR = NZcvq, EPSR = 01000000, IPSR = 000 (NoException)
CFBP = 00000000, CONTROL = 00, FAULTMASK = 00, BASEPRI = 00, PRIMASK = 00
J-Link>r
Reset delay: 0 ms
Reset type NORMAL: Resets core & peripherals via SYSRESETREQ & VECTRESET bit.
J-Link>s
000006D0: 16 49 LDR R1, [PC, #+0x58]
J-Link>s
000006D2: 17 4C LDR R4, [PC, #+0x5C]
J-Link>s
000006D4: 24 68 LDR R4, [R4]
J-Link>s
000006D6: 8C 42 CMP R4, R1
J-Link>s
000006D8: 0B D1 BNE #+0x16
J-Link>s
000006DA: 16 4B LDR R3, [PC, #+0x58]
J-Link>s
000006DC: 1B 68 LDR R3, [R3]
J-Link>s
000006DE: 99 42 CMP R1, R3
J-Link>s
000006E0: 0C D1 BNE #+0x18
J-Link>s
000006E2: 15 4B LDR R3, [PC, #+0x54]
J-Link>s
000006E4: 15 4A LDR R2, [PC, #+0x54]
J-Link>s
000006E6: 13 60 STR R3, [R2]
J-Link>s
000006E8: 18 68 LDR R0, [R3]
J-Link>s
000006EA: 10 49 LDR R1, [PC, #+0x40]
J-Link>s
000006EC: 88 42 CMP R0, R1
J-Link>s
000006EE: ED D0 BEQ #-0x26
J-Link>s
000006F0: 0A E0 B #+0x14
J-Link>s
00000708: 80 F3 08 88 MSR MSP, R0
J-Link>s
0000070C: 0E 49 LDR R1, [PC, #+0x38]
J-Link>s
0000070E: 88 42 CMP R0, R1
J-Link>s
00000710: 04 DD BLE #+0x08
J-Link>s
0000071C: 5B 68 LDR R3, [R3, #+0x04]
J-Link>s
0000071E: 18 47 BX R3
J-Link>s
0001BF94: 12 48 LDR R0, [PC, #+0x48]
J-Link>s
0001BF96: 13 49 LDR R1, [PC, #+0x4C]
J-Link>s
0001BF98: 09 68 LDR R1, [R1]
J-Link>s
0001BF9A: 88 42 CMP R0, R1
J-Link>s
0001BF9C: 0E D1 BNE #+0x1C
J-Link>s
0001BF9E: 13 4B LDR R3, [PC, #+0x4C]
J-Link>s
0001BFA0: 18 68 LDR R0, [R3]
J-Link>s
0001BFA2: 0B 49 LDR R1, [PC, #+0x2C]
J-Link>s
0001BFA4: 88 42 CMP R0, R1
J-Link>s
0001BFA6: F3 D0 BEQ #-0x1A
J-Link>s
0001BF90: 20 BF WFE
J-Link>s
0001BF92: FD E7 B #-0x06
J-Link>s
0001BF90: 20 BF WFE
J-Link>s
0001BF92: FD E7 B #-0x06
J-Link>s
0001BF90: 20 BF WFE
J-Link>s
0001BF92: FD E7 B #-0x06
J-Link>s
0001BF90: 20 BF WFE
J-Link>s
0001BF92: FD E7 B #-0x06
J-Link>
It looks like arm goes to wait for event state.
Does anyone now what can happen?
Regards, M.
