TMS320F280049C: error #10234-D: unresolved symbols remain "Device_initGPIO() Device_init()"

Anupama,

Did you import C2000Ware DriverLib example project or it is your custom project?

When you import the project, it has a folder called 'device' and that folder has device.c file. This file includes the implementation of these functions.

Please make sure you have device.c included in the project.

Hi Santosh,

It is included.

Can you attach full build log? These functions are implemented in device.c

Is this DriverLib example or your custom project? Have you modified the project setting?

I just imported the project and it build without any error.

So I imported an example file then I have made changes to it for my application. Basically it is a completely different program now. I have multiple external libraries. Only issue is I don't understand why the device_init() should be unresolved. I have added a static library to the program. Also my main program is now .cpp file and C dialect in the compiler language options is now compile program in C99 mode.

Build log:
**** Build of configuration CPU1_RAM for project sci_ex4_echoback ****

"C:\\ti\\ccs1040\\ccs\\utils\\bin\\gmake" -k -j 4 all -O

Building target: "sci_ex4_echoback.out"
Invoking: C2000 Linker
"C:/ti/ccs1040/ccs/tools/compiler/ti-cgt-c2000_21.6.0.LTS/bin/cl2000" -v28 -ml -mt --cla_support=cla2 --float_support=fpu32 --tmu_support=tmu0 --vcu_support=vcu0 -Ooff --define=DEBUG --define=CPU1 --c99 --c++03 --diag_suppress=10063 --diag_warning=225 --diag_wrap=off --display_error_number --gen_func_subsections=on --abi=coffabi -z -m"sci_ex4_echoback.map" --heap_size=0x600 --stack_size=0x100 --warn_sections -i"C:/Users/Anupama Vashishtha/HomeOffice/Serial/Debug" -i"C:/ti/c2000/C2000Ware_4_00_00_00/driverlib/f28004x/driverlib/ccs/Debug/" -i"C:/ti/ccs1040/ccs/tools/compiler/ti-cgt-c2000_21.6.0.LTS/lib" -i"C:/ti/ccs1040/ccs/tools/compiler/ti-cgt-c2000_21.6.0.LTS/include" --priority --reread_libs --diag_wrap=off --display_error_number --xml_link_info="sci_ex4_echoback_linkInfo.xml" --entry_point=code_start --rom_model -o "sci_ex4_echoback.out" "./sci_ex4_echoback.obj" "./ExternalLibraries/IpMtWrapper.obj" "./ExternalLibraries/MultiSensor/Dummy_sensor.obj" "./ExternalLibraries/MultiSensor/MultiSensor.obj" "./ExternalLibraries/lib-cbor/allocators.obj" "./ExternalLibraries/lib-cbor/arrays.obj" "./ExternalLibraries/lib-cbor/builder_callbacks.obj" "./ExternalLibraries/lib-cbor/bytestrings.obj" "./ExternalLibraries/lib-cbor/callbacks.obj" "./ExternalLibraries/lib-cbor/cbor.obj" "./ExternalLibraries/lib-cbor/common.obj" "./ExternalLibraries/lib-cbor/encoders.obj" "./ExternalLibraries/lib-cbor/encoding.obj" "./ExternalLibraries/lib-cbor/floats_ctrls.obj" "./ExternalLibraries/lib-cbor/ints.obj" "./ExternalLibraries/lib-cbor/loaders.obj" "./ExternalLibraries/lib-cbor/maps.obj" "./ExternalLibraries/lib-cbor/memory_utils.obj" "./ExternalLibraries/lib-cbor/serialization.obj" "./ExternalLibraries/lib-cbor/stack.obj" "./ExternalLibraries/lib-cbor/streaming.obj" "./ExternalLibraries/lib-cbor/strings.obj" "./ExternalLibraries/lib-cbor/tags.obj" "./ExternalLibraries/lib-cbor/unicode.obj" "./ExternalLibraries/sm_clib/dn_hdlc.obj" "./ExternalLibraries/sm_clib/dn_ipmg.obj" "./ExternalLibraries/sm_clib/dn_ipmt.obj" "./ExternalLibraries/sm_clib/dn_serial_mg.obj" "./ExternalLibraries/sm_clib/dn_serial_mt.obj" "./ExternalLibraries/sm_clib/dn_whmt.obj" "./device/device.obj" "./device/f28004x_codestartbranch.obj" "../28004x_generic_ram_lnk.cmd" "../driverlib.lib" -l"C:/Users/Anupama Vashishtha/HomeOffice/Serial/Debug/Serial.lib" -llibc.a
<Linking>

undefined first referenced
symbol in file
--------- ----------------
Device_initGPIO() ./sci_ex4_echoback.obj
Device_init() ./sci_ex4_echoback.obj

error #10234-D: unresolved symbols remain

error #10010: errors encountered during linking; "sci_ex4_echoback.out" not built
>> Compilation failure
makefile:184: recipe for target 'sci_ex4_echoback.out' failed
gmake[1]: *** [sci_ex4_echoback.out] Error 1
gmake: *** [all] Error 2
makefile:180: recipe for target 'all' failed

**** Build Finished ****

Hi Santosh,

I should mention that it is happening with any library that I am trying to include. It throws "unresolved symbols remain" for any function from the library that I am trying to access. What must be going wrong?

Looking at the log above, it looks like device.obj is included in the linker command, so we should not see that error. 

Do you  have a small trim down project which you can share, then I can try to reproduce locally.

Hi Santosh,

i think I have figured out whatthe issue is. My executable program is in .cpp format whereas the static library program is in .c. I am assuming that the output of the library is generating object files which the main program is not able to identify. Do you think this is on the right track?

If so, can you tell me how I can use c based library in a .cpp program?