Eclipse with SDK5.2 nan-29

[pascal defesche]

Hello,

I'm trying to get the SDK examples working in Eclipse. I have followed all steps(except debugging part) in the nan-29, but i can only import the s110/ble_hrs example with missing headers(see attachment)? Is there any information about how to import for example the ble_template project and set all header/source files correctly? All help will be appreciated!

Regards, Pascal

[leo]

Hi Nguyen, you were right. Its possible to debug. I can debug the "gcc_startup_nrf5.S" file, and step through "SystemInit()" in "system_nrf51.c". But in the function "_start" there is a call to __libc_init_array, and here my application crashes (i guess.. here is picture: http://postimg.org/image/w7hwk0a71/). Have no clue why.. Another question i have is, which gcc compiler flags should i use .. are there some important? (for the linker i use: " -mabi=aapcs --specs=nano.specs -lc -lnosys -Wl,--gc-sections" and for the target processor i use: "-ffunction-sections -fdata-sections". Thanks a lot in advance!

[Nguyen Hoan Hoang]

Ah yes, forgot about that bug in the gcc_startup. You can call _main directly. the libc_init_arry is needed only require for C++ runtime. You can also use my startup code with my LD script instead. Files attached here

nrf51_startup_ld.zip

[leo]

You are my hero! A huge thanks! I can debug it now (with your files). But what do you mean by "call _main directly" and if i use the c++ runtime, i can use the default startup code? Thanks again!! :)

[Nguyen Hoan Hoang]

You're welcome. What I meant was in the gcc_startup_nrf51.S, instead of the call to _start, replace it by a call to _main. If you are writing C++ code. The runtime lib need to be initialized call cling _libc_init_array. See in my code. I put a conditional compilation for it. C++ code will generate a bigger file due to it runtime library.

[julian]

my thread goes too long, I can't find your reply in the thread, so I post it on your thread Thanks for help out first!

my current issue is able to start debugger, but can't stop at breakpoint, below is log: www.dropbox.com/.../Screenshot 2014-04-11 17.19.53.png

Connecting to J-Link... J-Link is connected. Firmware: J-Link OB-SAM3U128 V1 compiled Dec 11 2013 20:20:11 Hardware: V1.00 S/N: 480205216 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 = 0x20001C48) Target interface speed set to 30 kHz Resetting target Halting target CPU... ...Target halted (PC = 0x00012B98) 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= 20001C48, MSP= 20001C48, PSP= FFFFFFFC R14(LR) = FFFFFFFF, R15(PC) = 00012B98 XPSR C1000000, APSR C0000000, EPSR 01000000, IPSR 00000000 CFBP 00000000, CONTROL 00, FAULTMASK 00, BASEPRI 00, PRIMASK 00 Reading all registers Select auto target interface speed (2000 kHz) Flash breakpoints enabled Semi-hosting enabled (VectorAddr = 0x08) Semihosting I/O set to TELNET Client Failed to disable SWO. ERROR: Could not detect CPU clock speed. Verification of test code downloaded into RAM failed.

Failed to enable SWO. Could not measure target CPU frequency. Read 4 bytes @ address 0x00012B98 (Data = 0x681B4B15) Downloading 16192 bytes @ address 0x00014000 - Verify failed Downloading 15968 bytes @ address 0x00017F40 - Verify failed Downloading 16160 bytes @ address 0x0001BDA0 - Verify failed Downloading 16096 bytes @ address 0x0001FCC0 - Verify failed Downloading 16080 bytes @ address 0x00023BA0 - Verify failed Downloading 16176 bytes @ address 0x00027A70 - Verify failed Downloading 12208 bytes @ address 0x0002B9A0 - Verify failed Downloading 68 bytes @ address 0x0002E950 - Verify failed Downloading 8 bytes @ address 0x0002E994 - Verify failed Downloading 2396 bytes @ address 0x0002E99C - Verify failed Writing register (PC = 0x0002e951) Read 4 bytes @ address 0x0002E950 (Data = 0xFFFFFFFF) Read 4 bytes @ address 0xFFFFFFFF (Data = 0x001C4800) Read 4 bytes @ address 0xFFFFFFFF (Data = 0x001C4800) Resetting target Halting target CPU... ...Target halted (PC = 0x00012B98) 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= 20001C48, MSP= 20001C48, PSP= FFFFFFFC R14(LR) = FFFFFFFF, R15(PC) = 00012B98 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 0x00012B98 (Data = 0x681B4B15) Starting target CPU...

if I suspend it www.dropbox.com/.../Screenshot 2014-04-11 17.21.12.png

do you have any hint on this?