HI
Download the IAR kik-start version for ARM cortex M micro from IAR site
Download the STM32 lib file from ST site
You will find there many simple working project for demonstrating micro peripheral
You will also need a JLINK interface and a hardware board (can be purchased from many distributors)
Install the software ,connect the JLINK to hardware load a demo program hit the download button and press the run button.
All the best
Bobi
The microcontroller specialist