Could please help and show me how to create a freertos project for stm32f0 in eclipse ?
There is the long way of doing this, and the quick way of doing this.
First the quick way: Download TrueStudio (Eclipse) and select one of
their STM32 FreeRTOS projects - https://atollic.com/truestudio/
Then the long way: Download vanilla Eclipse with the CDT, install the
arm-none-eabi-gcc compiler, and follow the instructions for setting up
an Eclipse project. The following links might help: