Undefine reference to driver files (linker) - nRF Connect SDK v1.4.2

[raph2314]

Hi there!

I am using the bluetooth/peripheral_hr sample as a basis for my application, on top of which I need to include the nrfx_qspi driver. However, I get a "undefined reference to nrfx_qspi_init" error during linking. I have tried to move the source file to my /src/drivers directory, modified my prj.conf file to include "CONFIG_NRFX_QSPI=y", and modified my CMakeLists.txt file as follows:

# SPDX-License-Identifier: Apache-2.0

cmake_minimum_required(VERSION 3.13.1)

find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
project(peripheral_hr)

FILE(GLOB app_sources src/*.c)
target_sources(app PRIVATE
  ${app_sources}
  )

zephyr_include_directories(src)
zephyr_library_include_directories(${ZEPHYR_BASE}/samples/bluetooth)

add_subdirectory(src/drivers)



I have looked at a lot of the older forum questions related to this topic. The older ones mention something about a "sdk_config.h" file, but I do not see anything of the sorts. 

Any information on how I can move forward would be much appreciated! Thanks in advance.

[Håkon Alseth]

Hi,

 

There's no need to copy files and alter the CMakeLists.txt file, unless you are specifically adding your own implementation/handling of the qspi driver.

  

You should set this config in your project:

CONFIG_NRFX_QSPI=y

 

And then include the header in your main.c file:

#include <nrfx_qspi.h>

 

 

Then you can add your implementation of the nrfx_qspi driver.

 

Kind regards,

Håkon