Application compiles with no errors but still dosen't work?

RE: Application compiles with no errors but still dosen't work?

Thomas Stenersen — Mon, 09 Oct 2017 14:25:31 GMT

I still think the RAM start address might be a culprit here. Did sd_ble_enable() return successfully? Have you tried setting a breakpoint on the reset handler and see why it's resetting (or not)?

RE: Application compiles with no errors but still dosen't work?

Nguyen Hoan Hoang — Wed, 27 Sep 2017 11:06:07 GMT

in the linker scrip, any thing with '> RAM' should be changed to '> RAM AT > FLASH'

RE: Application compiles with no errors but still dosen't work?

Thomas Stenersen — Tue, 26 Sep 2017 08:18:56 GMT

No, we're using CMake to generate our makefiles (or other build files). Main compiler and linker flags for GCC are (from toolchain_gcc.cmake):

Compiler flags:

-mthumb
-mcpu=cortex-m0
-mfloat-abi=soft
-mabi=aapcs
-ffunction-sections
-fdata-sections
-fno-strict-aliasing
-fshort-enums
-fno-builtin

Linker flags:

-Xlinker -Map=$(MAP_FILE_OUTPUT)
-L$(LINKER_SEARCH_PATH)
-T$(TARGET_SPECIFIC_LINKER_FILE)
-Wl,--gc-sections
--specs=nano.specs
-mthumb
-mcpu=cortex-m0
-mabi=aapcs

-Thomas

RE: Application compiles with no errors but still dosen't work?

SørenHN — Tue, 26 Sep 2017 08:11:50 GMT

Are there any makefiles in the Mesh SDK in the same style as from the normal SDK's? If so, could someone direct me to them? I am wondering which flags are used for compiling and linking the example projects.

RE: Application compiles with no errors but still dosen't work?

SørenHN — Tue, 26 Sep 2017 07:33:50 GMT

Yes, is use these commands when flashing the chip:

nrfjprog -f NRF51 --program softdevice.hex --chiperase --verify
nrfjprog -f NRF51 --program app.hex --verify
nrfjprog -f NRF51 --reset

RE: Application compiles with no errors but still dosen't work?

Nguyen Hoan Hoang — Mon, 25 Sep 2017 19:36:02 GMT

Have you flashed the Softdevice first ? Looks like the Softdevice is missing

RE: Application compiles with no errors but still dosen't work?

Thomas Stenersen — Mon, 25 Sep 2017 13:36:23 GMT

Ok, the linker file from the mesh SDK should contain

SEARCH_DIR(.)
GROUP(-lgcc -lc -lnosys)

MEMORY
{
    FLASH (rx)      : ORIGIN = 0x0001b000, LENGTH = 0x1F000
    RAM (rwx)       : ORIGIN = 0x200022D8, LENGTH = 0x5A28
    /* Reserve space for the bootloader */
    /* CORE_BL_RAM (rw): ORIGIN = 0x20007D00, LENGTH = 0x2FC */
}

INCLUDE "nrf5x_common.ld"

Your program is probably in a continuous reset loop. You could try starting GDB (or another debugger) and add a breakpoint to the reset handler and step until you hit whatever is causing you application to hardfault/reset?

RE: Application compiles with no errors but still dosen't work?

SørenHN — Mon, 25 Sep 2017 07:04:05 GMT

Yes, I ran the linker file from SDK 12.1 and Mesh SDK through a text comparison program, and they came out identical.

RE: Application compiles with no errors but still dosen't work?

Thomas Stenersen — Fri, 22 Sep 2017 14:17:01 GMT

Did you try using the linker file from the Mesh SDK?

RE: Application compiles with no errors but still dosen't work?

Thomas Stenersen — Fri, 22 Sep 2017 12:46:12 GMT

Hi Søren,

Which SoftDevice and what nRF51422 variant? Try using the linker files under mesh_sdk/toolchain/.

-Thomas