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APPENDIX B PCCOM DEVICE DRIVER FOR MS/DOS
B.1 PCCOM Software The PCCOM V2.0 is a high
performance, easy to use RS232/RS422 device driver for PC/XT, PC/AT,
PC/386, 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.
The PCCOM V2.0 is an upgrade
version of PCCOM V1.0 software, it combines with PCCOM V1.0 and SERIAL
DRIVER utilities. Each serial port may be either 8250, 16450, 16550, or
16650 chip that was detected automatically.
For more details, please refer PCCOM manual. ¡@ |
| B.2 Hardware Configuration
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