Quatech DSCLP-300, SSCLP-300 Other Operating Systems, 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 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.

6.2 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.

DSCLP/SSCLP-200/300 User's Manual

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Contents DSCLP/SSCLP-200/300 Warranty Information Iii Standards to which Conformity is Declared Manufacturers NameManufacturers Address Application of Council DirectiveBase Address and Interrupt Level IRQ Hardware ConfigurationHardware Installation Address Map and Special Registers RS-422 or RS-485 Signal Line TerminationHalf-Duplex/Full-Duplex/Auto-Toggle Selection Page General Information Jumpers J6-J9 Full-duplex/Half-duplex Operation Signal ConnectionsRight Card Edge Jumpers Jumpers J10-J23 define the options for this card1 CTS0SEL, CTS1SEL J10 Force High-Speed Uart Clock X2, X4, or X8 J3, 4 Enable Scratchpad Register SPAD, J2Clock Rate and Optional Registers Clock multiplier jumper options Jumper/connector locations Hardware InstallationChannel Address Range Bit Description Enabling the Special RegistersInterrupt Status Register Dlab Bit Spad Jumper Register selected forQuatech Modem Control Register Quatech Modem Control RegisterWrite Read Options RegisterBit Name Description Clock Rate Uart Clock Maximum Data Multiplier Frequency Clock Rate MultiplierWindows Millennium Windows ConfigurationsWindows Windows Page Windows Windows NT Viewing Resources with Device Manager Two-Port RS-422/RS485 Serial Adapter Page DSCLP-200/300 Two-Port RS-422/485 Serial Adapter Page Page Page Page DOS and other operating systems Other Operating SystemsOS/2 QTPCI.EXE QTPCI.EXE Expert Mode display Jumper/Channel correspondence External ConnectionsRclk RTS/CTS HandshakeAUXIN/AUXOUT Loopback TclkHalf-Duplex/Full-Duplex/Auto-Toggle Selection Half/full-duplex and Auto-Toggle 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 SpecificationsCannot communicate with other equipment TroubleshootingComputer will not boot up DSCLP/SSCLP-200/300
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