This document provides an introduction to the Keil µVision toolchain (version 2) for the ST10F27x product family. It summarizes the different steps needed to configure the Keil development toolset, to build and to debug an application. Although this application note cannot show all the topics relevant to the Keil tool, it demonstrates the first steps necessary to get started with the compiler/debugger. Two very simple software examples are supplied with this application note. The first is a small application displaying a message on the toolset serial window. This example is used to show the required steps to create a project, build and debug it. The second example illustrates how to use interrupts and the Logic Analyser feature. The application source files are provided within an archived file. This file can be unpacked into any directory.