153 lines
4.3 KiB
Markdown
Executable file
153 lines
4.3 KiB
Markdown
Executable file
# cmake-nRF5x
|
|
|
|
Cmake script for projects targeting Nordic Semiconductor nRF5x series devices using the GCC toolchain from ARM.
|
|
|
|
# Dependencies
|
|
|
|
The script makes use of the following tools:
|
|
|
|
- nRF5x SDK by Nordic Semiconductor - SoC specific drivers and libraries (also includes a lot of examples)
|
|
- JLink by Segger - interface software for the JLink familiy of programmers
|
|
- nrfjprog by Nordic Semiconductor - Wrapper utility around JLink
|
|
- arm-non-eabi-gcc by ARM and the GCC Team - compiler toolchain for embedded (= bare metal) ARM chips
|
|
|
|
# Setup
|
|
|
|
1. Download this repo (or add as submodule) to the directory `cmake-nRF5x` in your project
|
|
|
|
1. Search the SDK `example` directory for a `sdk_config.h`, `main.c` and a linker script (normally named `<project_name>_gcc_<chip familly>.ld`) that fits your chip and project needs.
|
|
|
|
1. Copy the `sdk_config.h` and the project `main.c` into a new directory `src`. Modify them as required for your project.
|
|
|
|
1. Copy the linker script into the root of your project. Rename it to just `gcc_<chip familly>.ld` For example:
|
|
|
|
```
|
|
gcc_nrf51.ld
|
|
gcc_nrf52.ld
|
|
```
|
|
|
|
1. Create a new `CMakeLists.txt` file at the same level. Add the project standard cmake project header
|
|
|
|
A typical file may look like this:
|
|
|
|
```
|
|
cmake_minimum_required(VERSION 3.6)
|
|
|
|
set(NRF_TARGET "nrf52")
|
|
|
|
# optional, won't be used if passing toolchain on command line (see below)
|
|
if (NOT DEFINED ARM_NONE_EABI_TOOLCHAIN_PATH)
|
|
set(ARM_NONE_EABI_TOOLCHAIN_PATH "/usr/local/bin")
|
|
endif ()
|
|
|
|
set(NRF5_SDK_PATH "${CMAKE_SOURCE_DIR}/toolchains/nRF5/nRF5_SDK")
|
|
set(NRFJPROG "${CMAKE_SOURCE_DIR}/toolchains/nRF5/nrfjprog/nrfjprog")
|
|
|
|
include("cmake-nRF5x/CMake_nRF5x.cmake")
|
|
|
|
# must be called before first project call or add_subdirectory unless passing on command line
|
|
nRF5x_toolchainSetup()
|
|
|
|
project(YourProjectName C ASM)
|
|
|
|
nRF5x_setup()
|
|
|
|
nRF5x_addAppScheduler()
|
|
nRF5x_addAppFIFO()
|
|
nRF5x_addAppTimer()
|
|
nRF5x_addAppUART()
|
|
nRF5x_addAppButton()
|
|
nRF5x_addBSP(TRUE FALSE FALSE)
|
|
nRF5x_addBLEGATT()
|
|
|
|
|
|
nRF5x_addBLEService(ble_bas)
|
|
|
|
add_definitions(-DCONFIG_GPIO_AS_PINRESET)
|
|
|
|
include_directories("./src")
|
|
list(APPEND SOURCE_FILES "./src/main.c")
|
|
|
|
nRF5x_addExecutable(${PROJECT_NAME} "${SOURCE_FILES}")
|
|
```
|
|
|
|
Adjust as needed for your project.
|
|
|
|
_Note_: you can add `CXX` between `C ASM` to add c++ support
|
|
|
|
1. Optionally add additional libraries:
|
|
|
|
Only the most common drivers and libraries are wrapped with cmake macros.
|
|
|
|
To include BLE services, use `nRF5x_addBLEService(<service name>)`.
|
|
|
|
For other SDK libraries you can use `include_directories` and `list(APPEND SDK_SOURCE_FILES ...)` to add them. For example:
|
|
|
|
```cmake
|
|
include_directories(
|
|
"${NRF5_SDK_PATH}/<library header directory path>"
|
|
)
|
|
|
|
list(APPEND SDK_SOURCE_FILES
|
|
"${NRF5_SDK_PATH}/<library source file path>"
|
|
)
|
|
```
|
|
|
|
|
|
# Build
|
|
|
|
After setup you can use cmake as usual:
|
|
|
|
1. Generate the actual build files (out-of-source builds are strongly recomended):
|
|
|
|
```commandline
|
|
cmake -H. -B"cmake-build" -G "Unix Makefiles"
|
|
```
|
|
You can optionally pass the toolchain to `cmake` when configuring:
|
|
```
|
|
-DCMAKE_TOOLCHAIN_PATH=cmake-nRF5x/arm-gcc-toolchain.cmake
|
|
```
|
|
but if you do so you must ensure the toolchain binaries are available in your environment PATH (i.e. work on the command line without specifying absolute path)
|
|
|
|
2. Build your app:
|
|
|
|
```commandline
|
|
cmake --build "cmake-build" --target <your project name>
|
|
```
|
|
|
|
# Flash
|
|
|
|
In addition to the build target (named like your project) the script adds some support targets:
|
|
|
|
`FLASH_SOFTDEVICE` To flash a nRF softdevice to the SoC (typically done only once for each SoC)
|
|
|
|
```commandline
|
|
cmake --build "cmake-build" --target FLASH_SOFTDEVICE
|
|
```
|
|
|
|
`FLASH_<your project name>` To flash your application (this will also rebuild your App first)
|
|
|
|
```commandline
|
|
cmake --build "cmake-build" --target FLASH_<your project name>
|
|
```
|
|
|
|
`FLASH_ERASE` To completely erase the SoC flash
|
|
|
|
```commandline
|
|
cmake --build "cmake-build" --target FLASH_ERASE
|
|
```
|
|
|
|
# JLink Applications
|
|
|
|
To start the gdb server and RTT terminal, build the target `START_JLINK`:
|
|
|
|
```commandline
|
|
cmake --build "cmake-build" --target START_JLINK
|
|
```
|
|
|
|
# License
|
|
|
|
MIT for the `CMake_nRF5x.cmake` file.
|
|
|
|
Please note that the nRF5x SDK by Nordic Semiconductor is covered by it's own license and shouldn't be re-distributed.
|