Vision Systems VScom 800E PCIex Manual de usuario Pagina 27

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3 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 18: 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.
February 2010 VScom PCIex Card User Manual 27
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