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Prepend the text 'cmake_minimum_required(VERSION 3.8.2)' into the application and test build scripts. Modern versions of CMake will spam users with a deprecation warning when the toplevel CMakeLists.txt does not specify a CMake version. This is documented in bug #8355. To resolve this we include a cmake_minimum_required() line into the toplevel build scripts. Additionally, cmake_minimum_required is invoked from within boilerplate.cmake. The highest version will be enforced. This patch allows us to afterwards change CMake policy CMP000 from OLD to NEW which in turn finally rids us of the verbose warning. The extra boilerplate is considered more acceptable than the verbosity of the CMP0000 policy. Signed-off-by: Sebastian Bøe <sebastian.boe@nordicsemi.no>
.. _disco-sample: Disco demo ########## Overview ******** A simple 'disco' demo. The demo assumes that 2 LEDs are connected to GPIO outputs of the MCU/board. Wiring ****** The code may need some work before running on another board: set PORT, LED1 and LED2 according to the board's GPIO configuration. Nucleo-64 F103RB/F401RE boards ============================== Connect two LEDs to PB5 and PB8 pins. PB5 is mapped to the Arduino's D4 pin and PB8 to Arduino's D15. For more details about these boards see: - https://developer.mbed.org/platforms/ST-Nucleo-F103RB/ - https://developer.mbed.org/platforms/ST-Nucleo-F401RE/ Arduino 101 (x86) ================= Connect two LEDs to D4 (IO4) and D7 (IO7) pins. The schematics for the Arduino 101 board is available at: https://www.arduino.cc/en/uploads/Main/Arduino101-REV4Schematic.pdf For Arduino 101's pinmux mapping in Zephyr, see: :file:`boards/x86/arduino_101/pinmux.c` Modify the src/main.c file and set: .. code-block:: c #define PORT CONFIG_GPIO_QMSI_0_NAME /* GPIO_19 is Arduino's D4 */ #define LED1 19 /* GPIO_20 is Arduino's D7 */ #define LED2 20 Building and Running ********************* After startup, the program looks up a predefined GPIO device defined by 'PORT', and configures pins 'LED1' and 'LED2' in output mode. During each iteration of the main loop, the state of GPIO lines will be changed so that one of the lines is in high state, while the other is in low, thus switching the LEDs on and off in an alternating pattern. This project does not output to the serial console, but instead causes two LEDs connected to the GPIO device to blink in an alternating pattern. The sample can be found here: :file:`samples/basic/disco`. Nucleo F103RB ============= .. zephyr-app-commands:: :zephyr-app: samples/basic/disco :board: nucleo_f103rb :goals: build :compact: Nucleo F401RE ============= .. zephyr-app-commands:: :zephyr-app: samples/basic/disco :board: nucleo_f401re :goals: build :compact: Arduino 101 ============ .. zephyr-app-commands:: :zephyr-app: samples/basic/disco :board: arduino_101 :goals: build :compact: