The BLINKY project is the example program used in User's Guide: MCBx51 Evaluation Board - Chapter 5 Programming. It does nothing more than blink the LEDs on the MCBx51 evaluation board. The Blinky program is available in different targets: Simulator: Blinky example in SMALL model for Simulation MCBx51: 8xC51Rx: Blinky example for the MCBx51 Eval Board running on 80C51Rx+, 80C51RD2, or compatible