Hi everyone,
I am struggling to get the GNU Debugger to work and break at breakpoints.
I followed the GCC and Eclipse tutorial: devzone.nordicsemi.com/.../ to install everything on my Mac.
I also tried it with the PCA10028 dev kit as well as a couple of other boards and breakpoints are simply ignored. I built an app based on the app_template and set a breakpoint in my main function, but it does not stop.
Flashing with JLinkExe and debug printing via RTT works fine and Eclipse seems to start the debugger and all the J-Link stuff up correctly, but no breaking at breakpoints.
Update: I also turned off all the optimizations that could cause trouble by using the -Og flag for GCC and it did not help.
Here is the console output in Eclipse when doing a debug launch (Run -> Debug):
SEGGER J-Link GDB Server V5.10d Command Line Version
JLinkARM.dll V5.10d (DLL compiled Dec 9 2015 12:59:04)
-----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: NRF51822_XXAA
Target interface: SWD
Target interface speed: 4000kHz
Target endian: little
Connecting to J-Link...
J-Link is connected.
Firmware: J-Link OB-SAM3U128-V2-NordicSemi compiled Aug 28 2015 19:26:24
Hardware: V1.00
S/N: 681939210
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 4 bytes @ address 0x00000000 (Data = 0x000007C0)
Target interface speed set to 1000 kHz
Resetting target
Halting target CPU...
...Target halted (PC = 0x000006D0)
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 4 bytes @ address 0x000006D0 (Data = 0x4C174916)
Select auto target interface speed (1000 kHz)
Flash breakpoints enabled
Read 4 bytes @ address 0x000006D0 (Data = 0x4C174916)
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 1704 bytes @ address 0x0001F000 - Verified OK
Comparing flash [....................] Done.
Verifying flash [....................] Done.
Writing register (PC = 0x0001e324)
Read 4 bytes @ address 0x0001E324 (Data = 0x480A2103)
Resetting target
Halting target CPU...
...Target halted (PC = 0x000006D0)
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 4 bytes @ address 0x000006D0 (Data = 0x4C174916)
Starting target CPU...
