Simple digital clock based on STM32L011K4 MCU. It can be easily implemented on a breadboard using ST Nucleo L011K4 board.
You need a working ARM EABI C cross-compiler to build the source. Also, to flash and debug it is necessary to install OpenOCD. On Fedora all the dependencies can be quickly installed from the package manager:
dnf install arm-none-eabi-binutils-cs arm-none-eabi-gcc-cs arm-none-eabi-newlib openocd make gdb
Once dependencies are installed, just run:
make
The repository contains OpenOCD configuration appropriate for Nucleo L011K4, which should
also work with any ST-Link compatible interface. See st_nucleo_l011k4.cfg.
To flash the MCU, just run:
make flash
Debugging is possible using GNU gdb. Appropriate .gdbinit file is provided.
From the repository main directory, just run:
gdb
Note that gdb won't load the .gdbinit file automatically, unless you add it to
~/.config/gdb/gdbinit:
add-auto-load-safe-path ${MY_REPO_PATH}/rkclock/.gdbinit
