0b90fd5adf
As both C and C++ standards require applications running under an OS to return 'int', adapt that for Zephyr to align with those standard. This also eliminates errors when building with clang when not using -ffreestanding, and reduces the need for compiler flags to silence warnings for both clang and gcc. Most of these changes were automated using coccinelle with the following script: @@ @@ - void + int main(...) { ... - return; + return 0; ... } Approximately 40 files had to be edited by hand as coccinelle was unable to fix them. Signed-off-by: Keith Packard <keithp@keithp.com> |
||
---|---|---|
.. | ||
src | ||
CMakeLists.txt | ||
prj.conf | ||
README.rst | ||
sample.yaml |
.. _microbit_display: BBC micro:bit display ##################### Overview ******** A simple example that demonstrates how to use the 5x5 LED matrix display on the BBC micro:bit board. Building ******** This project outputs various things on the BBC micro:bit display. It can be built as follows: .. zephyr-app-commands:: :zephyr-app: samples/boards/bbc_microbit/display :board: bbc_microbit :goals: build :compact: Sample Output ============= The sample app displays a countdown of the characters 9-0, iterates through all pixels one-by-one, displays a smiley face, some animations, and finally the text "Hello Zephyr!" by scrolling.