The Connector is a standalone application that runs on a windows-based PC environment. The user controls the car by pressing the proper keys on the keyboard, which sends messages to the Connector game via the keyboard port. With the MC9S12NE64 demo board (or evaluation board), OpenTCP stack software- and MC9S12NE64 source code, the game play becomes Ethernet optimized.
This means the MC9S12NE64 demo or evaluation board becomes an Ethernet joystick. This is possible because the MC9S12NE64 and the OpenTCP stack software has the ability to send and receive User Datagram Protocol (UDP) messages over the Ethernet. Once the UDP messages are received by the Connector game, the Connector source code executes the desired response on screen.
The Connector and the MC9S12NE64 is an example of a simple Ethernet application that sends and receives UDP messages, but this example can be applied to real-world applications. For example, the MC9S12NE64, with the proper software, could be installed into a remote vending machine and UDP messages could be sent to home office. The MC9S12NE64 could send UDP messages that would inform the home office that the remote vending machine is out of inventory, out of change, or a power failure has occurred.