Tool/software: Code Composer Studio
Code Composer Studio Version: 7.4.0.00015
BIOS version ：bios_5_42_01_09
why Compiler cannot find BIOS configed task which has actually defined in the user source code?
The Linking error as following ：
'Invoking: C2000 Linker'
"C:/ti/bin/cl2000" -v28 -ml -O3 -g --define=_DEBUG --define=LARGE_MODEL --diag_warning=225 --display_error_number -z --stack_size=1024 -m"GSN_280x.map" -i"D:/Works/GSN_280xPro/GSN_280x" -i"C:/ti/lib" -i"C:/ti/include" -i"D:/Works/GSN_280xPro/GSN_280x" -i"C:/ti/bios_5_42_01_09/packages/ti/bios/lib" -i"C:/ti/bios_5_42_01_09/packages/ti/rtdx/lib/c2000" --reread_libs --xml_link_info="GSN_280x_linkInfo.xml" --rom_model -o "GSN_280x.out" "./GSN_280xcfg.obj" "./GSN_280xcfg_c.obj" "./InvDsp.obj" "../Flash2808_API_V300.lib" "D:/Works/GSN_280xPro/cmd/DSP280x_Headers_BIOS.cmd" "D:/Works/GSN_280xPro/cmd/UserLinkerCmd_280x.cmd" -l"./GSN_280xcfg.cmd" -l"D:/Works/GSN_280xPro/GSN_280x/rts2800_ml.lib"
<Linking>
undefined first referenced
symbol in file
--------- ----------------
_PRD_F_TimeBase20mS ./GSN_280xcfg.obj
_PRD_F_TimeBase2mS ./GSN_280xcfg.obj
_TSK_F_20ms_Communicate ./GSN_280xcfg.obj
_TSK_F_StateSwitch ./GSN_280xcfg.obj
error #10234-D: unresolved symbols remain
error #10010: errors encountered during linking; "GSN_280x.out" not built
