Casio IT-2000W manual Restrictions regarding the COM port, Restictions regarding the IrDA port

Note on the simulation:

As explained previously, this simulator does not exactly simulate the IT-2000 operations. Moreover, some operations can not be simulated because of the difference between the IT-2000 and personal ￿computer in terms of the hardware.

Restrictions regarding the COM port

The operation of the COM port (8-pin) of the IT-2000 can be programmed in the same way as for the COM1 port of the IBM PC/AT except the power control method. However, this post uses an 8-pin DIN connector, which has a different shape from the COM port connector of the general personal computers. Also, this connector is supplied a 5V power, which in turn provides power to an external device such as an OBR. Consequently, although it is possible to develop, on a personal computer, such a program that uses the COM port, it is not permitted to debug the

￿program while an external device such as the OBR is being connected to the port.

Restictions regarding the IrDA port

The IT-2000 has installed the hardware to support the IrDA interface, which is controlled by the dedicated driver.

Many recent personal computers also support the IrDA interface, however, the driver for the IT-2000 can not be operated on these personal computers because of the difference in the hardware. The IrDA driver for the IT-2000 has been installed in a form of a COM driver (COM2) of MS-Windows. Therefore, if the user develops an application program that uses the COM2 port, it can be operated with the IrDA driver of the IT-2000. Note, in this case, that the IrDA driver on the IT-2000 is a subset of the COM port driver of MS-Windows.

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