Vision Systems VScom 200E PCIex Manual de usuario descargar pdf (Pagina 34)

4 Windows Driver

• Wrong: Overspeed is set to 2. The application requests 38400, the result is 76800. Even

when this is below the maximum speed of the modem, it does not recognize this speed in

many cases. Operation is not possible.

• Wrong: Windows searches for Modems at certain speeds. Modem detection may fail, because

of wrong settings.

• Correct: The application is limited to 19200. Overspeed my be 6 or 12 to get 115200 or even

230400 with a modern modem.

Automatic Software Flow Control

Figure 20: Auto XON/XOFF

This panel conﬁgures the On-Chip Software Flow Control provided by the UART. Only some

UART types support the Flow Control directly on the chip. Use the 16950 emulation to allow rich

possibilities.

To get access to this panel conﬁgure Software Flow Control in the Standard Port Settings (see 4.2.3),

and leave it enabled in the driver.

July 2011 VScom Industrial Card User Manual 34

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Vision Systems VScom 200E PCIex Manual de usuario Pagina 34