Quatech RS-422 Other Operating Systems, Windows NT, OS/2, DOS and other operating systems

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6 Other Operating Systems

Device drivers for Windows NT and OS/2 are also available for the DSCLP-200/300. The board can be used under DOS and other operating systems as well in many circumstances. The software described below can be obtained from the Quatech web site if it did not come with the board.

6.1 Windows NT

The Windows NT device driver is installed by running the SETUP program. Up to 256 serial ports are supported. There is a command line-based configuration utility which is used for adding PCI bus and ISA bus serial ports. Please refer to the documentation included with the device driver for full installation and configuration details.

6.2 OS/2

The OS/2 device driver supports up to 32 serial ports in a system. Installation is a manual, but simple, process. Please refer to the documentation included with the device driver for full installation and configuration details.

6.3 DOS and other operating systems

The DSCLP-200/300 is not a direct drop-in replacement for a legacy serial port because its base address and IRQ cannot be fixed at values such as 3F8 hex, IRQ 4 (COM1) or 2F8 hex, IRQ 3 (COM2), etc. Rather, the system BIOS assigns the address and the IRQ in a plug-and-play fashion at boot time. Software which is to use the DSCLP-200/300 must be able to accommodate any valid assignments of these resources.

For Windows 95, Windows NT and OS/2, the Quatech device drivers

determine what the resource assignments are and proceed accordingly. In other cases, however, the user must intervene. The discussion below will center on DOS, but the concepts can be applied to other operating systems as well.

Many DOS applications support user configuration of the base address and IRQ of a serial port. Such applications can generally make use of the DSCLP-200/300. Older applications, as well as some custom software, may use hard-coded standard legacy serial port addresses. These applications will require modifications to support PCI devices.

Custom applications for which the customer has source code can be modified to make just a few PCI BIOS function calls to obtain all the necessary configuration information. The PCI BIOS specification can be obtained from the PCI Special Interest Group. Contact Quatech technical support for more information.

6.3.1 QTPCI.EXE

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DSCLP/SSCLP-200/300 User's Manual

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Contents DSCLP-200/300 Page Serial Number Declaration of Conformity Table of Contents General Information RS-422 or RS-485 Signal Line Termination Hardware ConfigurationFull-duplex/Half-duplex Operation Signal Connections1 CTS0SEL, CTS1SEL J10,17 2 AUX0SEL1,0, AUX1SEL1,0 J12,11,19,18RCLK0SEL, RCLK1SEL J13 Clock Rate and Optional Registers Enable Scratchpad Register SPAD, J24 TGL0SEL1,0, TGL1SEL1,0 J15,14,22,21 RXEN0SEL, RXEN1SEL J16Force High-Speed Uart Clock X2 or X4, J4-J5 Enable scratchpad registersX4 mode Jumper/connector locations Hardware InstallationBase Address and Interrupt Level IRQ Address Map and Special RegistersInterrupt Status Register Enabling the Special RegistersQuatech Modem Control Register Quatech Modem Control RegisterEnhanced Serial Adapter Identification Options RegisterRR1 RR0 Clock Rate MultiplierWindows Millennium Windows ConfigurationsWindows Windows Windows Using the New Hardware Found Wizard Viewing Resources with Device Manager Page Page Page DOS and other operating systems Other Operating SystemsWindows NT OS/2QTPCI.EXE Basic Mode display QTPCI.EXE Expert Mode display Jumper/Channel correspondence External ConnectionsRclk RTS/CTS HandshakeAUXIN/AUXOUT Loopback XclkHalf-Duplex/Full-Duplex Selection Half- or full-duplex selection RS-422/485 Line termination resistance values Termination ResistorsRS-422/485 Peripheral Connection DSCLP-200/300 connector definitionsINTA# PCI Resource MapWith 64-byte FIFOs optional SpecificationsComputer will not boot up TroubleshootingDSCLP-200/300 Revision December
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