The RS232 serial interface is used for communications between the Genboard module and a computer.

Before communication between the Genboard module and a PC can be established the following wiring must be done. The DSUB9 connector must be a female connector, don't worry too much about the length, it can be extended with a stock DSUB9 extention cable.

If the Tuning software hasn't been obtained and installed, now is good time (see Section 5.2.1, “Obtaining” and Section 5.2.2, “Installation” ).

Connect RS232 and power up the Genboard module. Make sure that no other application is using the PC's RS232 port.

The main window of the MegaTune consists of a menu at the top, gauges in the middle and status information at the bottom.

Before MegaTune can connect to the Genboard module, the settings of the serial port must be configured. Select 'Communications->Settings...' in the menu, the dialog 'Communication Settings' is presented as shown in Figure 8.4, “MegaTune - Communication Settings” .

Select the COM port the Genboard module is attached to and press the button 'Click to test'. If the settings are correct and the Genboard module is in working order, the dialog is changed as seen in Figure 8.5, “MegaTune - Communication Settings tested” .

Close the 'Communication Settings' dialog, the gauges in the main window should start showing actual measurements as seen in Figure 8.6, “MegaTune - Main window, connected to Genboard module” is displayed.

Turn off the Genboard module and disconnect the RS232 cable.