Project added code does not build - undefined reference to

Badman — Mon, 04 Jul 2022 18:21:21 GMT

I am using MCUXpresso IDE v11.5.1 [Build 7266] [2022-04-13].

I added icludes path to "${workspace_loc:/${ProjName}/hd44780}"

I added source location to "WYS_HD44780\hd44780"

However, when building, I have a message undefined reference to... What am I doing wrong ?

Building target: WYS_HD44780.axf Invoking: MCU Linker arm-none-eabi-gcc -nostdlib -L"/home/badman/Programowanie/LPC1114_MCU/CMSIS_CORE_LPC11xx/Debug" -Xlinker -Map="WYS_HD44780.map" -Xlinker --cref -Xlinker --gc-sections -Xlinker -print-memory-usage -mcpu=cortex-m0 -mthumb -T "WYS_HD44780_Debug.ld" -o "WYS_HD44780.axf" ./src/WYS_HD44780.o ./src/cr_startup_lpc11xx.o ./src/crp.o ./src/delay.o -lCMSIS_CORE_LPC11xx /usr/local/mcuxpressoide-11.5.1_7266/ide/plugins/com.nxp.mcuxpresso.tools.linux_11.5.1.202201181444/tools/bin/../lib/gcc/arm-none-eabi/10.3.1/../../../../arm-none-eabi/bin/ld: ./src/WYS_HD44780.o: in function `main': Memory region Used Size Region Size %age Used MFlash32: 672 B 32 KB 2.05% RamLoc8: 0 GB 8 KB 0.00% /home/badman/Programowanie/LPC1114_MCU/WYS_HD44780/Debug/../src/WYS_HD44780.c:20: undefined reference to `lcd_init' /usr/local/mcuxpressoide-11.5.1_7266/ide/plugins/com.nxp.mcuxpresso.tools.linux_11.5.1.202201181444/tools/bin/../lib/gcc/arm-none-eabi/10.3.1/../../../../arm-none-eabi/bin/ld: /home/badman/Programowanie/LPC1114_MCU/WYS_HD44780/Debug/../src/WYS_HD44780.c:21: undefined reference to `lcd_str' collect2: error: ld returned 1 exit status make[1]: *** [makefile:47: WYS_HD44780.axf] Błąd 1 make: *** [makefile:38: all] Błąd 2 "make -r -j3 all" terminated with exit code 2. Build might be incomplete.

Re: Project added code does not build - undefined reference to

ZhangJennie — Tue, 05 Jul 2022 06:55:32 GMT

Your first screenshot doesn't include "src" path. please add it.

Besides, I suggest you importing a lpcopen demo code, refer the demo code path settings to set your project path.

If the problem persists, please upload your project here, thus we can check it directly.

Thanks,

Jun Zhang

Re: Project added code does not build - undefined reference to

Badman — Tue, 05 Jul 2022 14:15:37 GMT

I checked all the settings, it turned out that I deleted the file hd44780.c from the added folder hd44780.

The function prototypes were in the file hd44780.h and the functions were missing hence the undefined reference message.

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Project added code does not build - undefined reference to

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Re: Project added code does not build - undefined reference to