No source available for "0xffffffff"

[fercholas]

I am facing the below issue that no source is available for "0xffffffff" when i try to debug the program using eclipse

I am using softdevice s110 and have flashed the same before debugging the application.

I am working with SDK V11.0

This is the Debugger Log:

SEGGER J-Link GDB Server V5.12e Command Line Version

JLinkARM.dll V5.12e (DLL compiled Apr 29 2016 15:06:27)

-----GDB Server start settings----- GDBInit file: none GDB Server Listening port: 2331 SWO raw output listening port: 2332 Terminal I/O port: 2333 Accept remote connection: localhost only Generate logfile: off Verify download: on Init regs on start: on Silent mode: off Single run mode: on Target connection timeout: 0 ms ------J-Link related settings------ J-Link Host interface: USB J-Link script: none J-Link settings file: none ------Target related settings------ Target device: NRF51422 Target interface: SWD Target interface speed: 1000kHz Target endian: little

Connecting to J-Link... J-Link is connected. Firmware: J-Link OB-SAM3U128-V2-NordicSemi compiled Mar 15 2016 18:03:17 Hardware: V1.00 S/N: 681325908 Checking target voltage... Target voltage: 3.30 V Listening on TCP/IP port 2331 Connecting to target...Connected to target Waiting for GDB connection...Connected to 127.0.0.1 Reading all registers Read 1 bytes @ address 0x00000000 (Data = 0xC0) Read 1 bytes @ address 0x00000000 (Data = 0xC0) Reading 64 bytes @ address 0x00000000 Reading 8 bytes @ address 0x00000000 Reading 7 bytes @ address 0x00000000 Target interface speed set to 1000 kHz Select auto target interface speed (1000 kHz) Flash breakpoints disabled Read 1 bytes @ address 0x00000000 (Data = 0xC0) Read 1 bytes @ address 0x00000000 (Data = 0xC0) Reading 8 bytes @ address 0x00000000 Reading 7 bytes @ address 0x00000000 Downloading 4096 bytes @ address 0x00018000 - Verified OK Downloading 4096 bytes @ address 0x00019000 - Verified OK Downloading 4096 bytes @ address 0x0001A000 - Verified OK Downloading 4096 bytes @ address 0x0001B000 - Verified OK Downloading 4096 bytes @ address 0x0001C000 - Verified OK Downloading 4096 bytes @ address 0x0001D000 - Verified OK Downloading 4096 bytes @ address 0x0001E000 - Verified OK Downloading 4096 bytes @ address 0x0001F000 - Verified OK Downloading 4096 bytes @ address 0x00020000 - Verified OK Downloading 4096 bytes @ address 0x00021000 - Verified OK Downloading 136 bytes @ address 0x00022000 - Verified OK Downloading 8 bytes @ address 0x00022088 - Verified OK Downloading 120 bytes @ address 0x00022090 - Verified OK Comparing flash [....................] Done. Verifying flash [....................] Done. Writing register (R8 = 0x00021dbd) WARNING: Unsupported register (1) Read 1 bytes @ address 0x00021DBD (Data = 0x21) Reading 64 bytes @ address 0x00019F40 Read 1 bytes @ address 0x00019F69 (Data = 0xB5) Resetting target Halting target CPU... ...Target halted (PC = 0x000006D0) Read 1 bytes @ address 0x00019F69 (Data = 0xB5) 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, R13= 000007C0, MSP= 000007C0, PSP= FFFFFFFC R14(LR) = FFFFFFFF, R15(PC) = 000006D0 XPSR C1000000, APSR C0000000, EPSR 01000000, IPSR 00000000 CFBP 00000000, CONTROL 00, FAULTMASK 00, BASEPRI 00, PRIMASK 00 Reading all registers Read 1 bytes @ address 0xFFFFFFFF (Data = 0x00) Read 1 bytes @ address 0xFFFFFFFF (Data = 0x00) Reading 64 bytes @ address 0xFFFFFFC0 Reading 8 bytes @ address 0xFFFFFFFF Reading 7 bytes @ address 0xFFFFFFFF Setting breakpoint @ address 0x00019F69, Size = 4, BPHandle = 0x0001 Starting target CPU... ...Breakpoint reached @ address 0x00019F68 Reading all registers Read 1 bytes @ address 0xFFFFFFFF (Data = 0x00) Read 1 bytes @ address 0xFFFFFFFF (Data = 0x00) Reading 64 bytes @ address 0xFFFFFFC0 Reading 8 bytes @ address 0xFFFFFFFF Reading 7 bytes @ address 0xFFFFFFFF Removing breakpoint @ address 0x00019F69, Size = 4 Reading 64 bytes @ address 0x00000000 Reading 64 bytes @ address 0x00000040 Reading 64 bytes @ address 0x00000080

I can build and flash the program correctly.

Hardware: PCA10028 V1.2.0

Debug Configurations

Anyone know what could be the issue?

Thanks in Advance!

[mitchellw]

You could try using GCC 4.9 which solved this problem for me (launchpad.net/.../4.9-2015-q3-update).

This was my thread: devzone.nordicsemi.com/.../

[fercholas]

Hi mitchellw

Thanks for answering. I am using gcc-arm-none-eabi-4_9-2015q3 and working on Ubuntu 14.04

[yifan hao]

I had the same issue when I followed the tutorial here

The tutorial also uses gdb in eclipse to debug, and I cannot see the source code when I flashed the binary by clicking debug. I solved this by simply correcting the device name of the debug session. You could follow this tutorial to see if you have set up the device name correctly when you create debug session. I'm not sure if this would solve your problem, but it works for me.

[Vidar Berg]

As you may know there are no examples supporting s110 in SDK 11, only s130 v.2.0.0. It won't work properly unless you backport it. Also noticed that the disassembly is not showing instructions for the M0, which is strange. Are you able to share your project so I can try it here?

[fercholas]

Hi Yifan, thanks for answering. I followed the same tutorial. The device name I am setting is nRF51422_xxAC. I am working with the NRF51 DK V1.2.0. Is it right?