APPENDIX B
PCCOM DEVICE DRIVER FOR MS/DOS

B.1 PCCOM Software

The PCCOM software is a high performance, easy to use RS232/RS422 device driver for PC/486, Pentium or compatibles. Under MS/DOS environment, you can set up your serial ports by PCCOM device driver, and these serial ports can be treated as COM1: and COM2: devices. The setup procedure provides flexible functions to specify the configuration of multi-serial card, that is, the hardware configurations of I/O port number, I/O port address, interrupt and interrupt vector are user selectable.

After the device driver is installed, It takes over communication between CPU and multi-serial cards such as four port card, eight port card, ... etc. For each I/O port, the service routine handles a ring buffer to keep track of all I/O data. Moreover, the PCCOM software provides library routines (C, PASCAL, BASIC, FoxPro) and DOS communication interface (DOS device driver, BIOS call) for several access levels.

&  For more details, please refer PCCOM manual.

B.2 Software Installation

When the board is installed, please install software drivers as follows:

       STEP 1:Prepare PCI.OPT file

       The PCI.OPT file contents are :

       STEP 2: Prepare CONFIG.SYS file

       Insert statement into CONFIG.SYS file

        For normal speed

        For high speed

       The syntax of PnP function is

The Card_id field is defined as 1 or 2 or 3 or 4 or nil, if you use PnP mode, just fill nil in card_id field that like step 1, otherwise you can specify card_id to match the card identifier switch. The Portno field is used to specify number of ports in this adapter. The Port field is defined as PCCOM V2.0.