Error while compiling through makefile

[Newbie]

Hello, I am using sdk12.2.0 and pca10028 dk. I am using one code downloaded from unknown source. The code is used to store data in flash. When I compile through keil I don't get any error in code except that the code size is limited (as I am not using licensed version). When I try to compile makefile I am getting error as attached cmderror1.PNG I have added files and path to the code. I have also made changes in sdk_config file. I am also attaching my makefile and main file here makefile - makefile.txt

main - main.txt

Error2 - cmderror2.PNG

[Jørgen Holmefjord]

Hi,

The errors suggest the implementation of the functions are not included in the project.

You need to add the source file to the twi driver to the Makefile:

SRC_FILES += \
  $(SDK_ROOT)/components/drivers_nrf/twi_master/nrf_drv_twi.c \

You also need to enable the TWI driver in sdk_config.h:

#define TWI_ENABLED 1

Best regards,

Jørgen

[Newbie]

It worked. Thanks