Hi. I am a beginner with nrf52832. Trying to get Bluetooth and UART and a I2C peripheral working at the same time. I had a working version of the I2C peripheral and UART working together and tried to merge Bluetooth in, referencing the ble_app_uart example provided in nRF5_SDK_12.3.0. Currently when I try to do make flash I do not get any compiling errors, but I am getting linker errors that say that I have "undefined reference":
Linking target: _build/nrf52832_xxaa.out
_build/nrf52832_xxaa_twi.c.o: In function `twi_master_init':
/home/yilunsheng/src/accelerometer, SDK12.3, app_uart_merge/./twi.c:43: undefined reference to `nrf_drv_twi_init'
/home/yilunsheng/src/accelerometer, SDK12.3, app_uart_merge/./twi.c:46: undefined reference to `nrf_drv_twi_enable'
_build/nrf52832_xxaa_lis3dh.c.o: In function `lis3dh_read_data':
/home/yilunsheng/src/accelerometer, SDK12.3, app_uart_merge/./lis3dh.c:171: undefined reference to `nrf_drv_twi_tx'
/home/yilunsheng/src/accelerometer, SDK12.3, app_uart_merge/./lis3dh.c:180: undefined reference to `nrf_drv_twi_rx'
_build/nrf52832_xxaa_lis3dh.c.o: In function `lis3dh_init':
/home/yilunsheng/src/accelerometer, SDK12.3, app_uart_merge/./lis3dh.c:232: undefined reference to `nrf_drv_twi_tx'
collect2: error: ld returned 1 exit status
../nRF5_SDK_12.3.0/components/toolchain/gcc/Makefile.common:153: recipe for target '_build/nrf52832_xxaa.out' failed
make: *** [_build/nrf52832_xxaa.out] Error 1
Very confused about where the problem is.
