Other Parts Discussed in Thread: TM4C129ENCPDT,
Tool/software:
There is a example project under \ti\ccs1040\tirtos_tivac_2_16_01_14\tirtos_tivac_2_16_01_14_examples\TI\EK_TM4C129EXL\uartecho. This project is not a ccs project, but it has a Makefile. I created a empty ccs project and added files from example project folder. The build gets an undefined symbol error:
Invoking: Arm Linker
"C:/ti/ccs1040/ccs/tools/compiler/ti-cgt-arm_20.2.7.LTS/bin/armcl" -mv7M4 --code_state=16 --float_support=FPv4SPD16 -me --define=ccs="ccs" --define=PART_TM4C129ENCPDT -g --gcc --diag_warning=225 --diag_wrap=off --display_error_number --abi=eabi -z -m"uartecho.map" --heap_size=0 --stack_size=512 -i"C:/ti/ccs1040/ccs/tools/compiler/ti-cgt-arm_20.2.7.LTS/lib" -i"C:/ti/ccs1040/ccs/tools/compiler/ti-cgt-arm_20.2.7.LTS/include" --reread_libs --diag_wrap=off --display_error_number --warn_sections --xml_link_info="uartecho_linkInfo.xml" --rom_model -o "uartecho.out" "./EK_TM4C129EXL.obj" "./uartecho.obj" "../EK_TM4C129EXL.cmd" -l"configPkg/linker.cmd" -llibc.a -l"C:/ti/ccs1040/tirtos_tivac_2_16_01_14/products/TivaWare_C_Series-2.1.1.71b/grlib/ccs/Debug/grlib.lib" -l"C:/ti/ccs1040/tirtos_tivac_2_16_01_14/products/TivaWare_C_Series-2.1.1.71b/usblib/ccs/Debug/usblib.lib" -l"C:/ti/ccs1040/tirtos_tivac_2_16_01_14/products/TivaWare_C_Series-2.1.1.71b/driverlib/ccs/Debug/driverlib.lib"
<Linking>
undefined first referenced
symbol in file
--------- ----------------
SemPost C:/ti/ccs1040/tirtos_tivac_2_16_01_14/products/tidrivers_tivac_2_16_01_13/packages/ti/drivers/lib/drivers_tivaware.aem4f<EMACSnow.oem4f>
If I add the example files into an existing project, which is another example project using NDK. There is no link error. These two projects link to the same libraries. I use CCS 10.40. Both projects use XDCtools 3.32.0.06_core, TI-RTOS for TivaC 2.16.1.14. I guess maybe it's .cfg file causes the problem. But I don't know how to fix it. My second question is whether there are any ISR based USART examples for EK-TM4C129EXL or a eval board in the same series ?
Thanks!
