Contec COM-2(PC)F Manual de usuario

COM-2(PC)F

RS-232C (2ch) Serial I/O Board

User’s Guide

COM-2(PC)F i

No part of this document may be copied or reproduced in any form

by any means without prior written consent of CONTEC Co., LTD.

CONTEC Co., LTD. makes no commitment to update or keep

current the information contained in this document. The

information in this document is subject to change without notice.

All relevant issues have been considered in the preparation of this

document. Should you notice an omission or any questionable

item in this document, please feel free to notify CONTEC Co.,

LTD.

Regardless of the foregoing statement, CONTEC assumes no

responsibility for any errors that may appear in this document nor

for results obtained by the user as a result of using this product.

Trademarks

MS, Microsoft, MS-DOS, Windows and Windows NT are

trademarks of Microsoft Corporation. Other brand and product

names are trademarks of their respective holder.

COM-2(PC)Fii

Product Configuration

-COM-2(PC)FBoard…1

-Sample Program Diskette (3.5inch/1.44MB)…1

-User's Guide (This Booklet)…1

Unpacking:

This board is specially packed in an anti-static bag to prevent

damage in shipping.

Check the contents to make sure that you have everything listed

above. If you do not have all the items, contact your distributor

or CONTEC group office where you purchased.

Note! Do not remove the board from its protective packaging until the

computer case is open and ready for installation. Electrical static

can cause damage to electrical components.

COM-2(PC)F iii

Table of Contents

Trademarks ........................................................................i

Product Configuration ..................................................... ii

1. Introduction .............................................................1

About the COM-2(PC)F Board.....................................1

Support Software of Option..........................................1

Features.........................................................................1

Limited Three-Year Warranty......................................2

How to Obtain Service..................................................2

Liability.........................................................................2

About the Manual.........................................................3

2. How to Use the Board ...............................................5

Compatible Mode and Enhanced Mode ...........................5

Compatible Mode..........................................................5

Enhanced Mode.............................................................5

Operating under Windows Me/98.....................................6

Procedure.......................................................................6

Operating under Windows 95.........................................10

Procedure.....................................................................10

Operating under Windows 2000.....................................14

Procedure.....................................................................14

Operating under Windows NT .......................................18

Procedure.....................................................................18

Operating under Windows 3.1........................................19

Procedure.....................................................................19

Operating under MS-DOS..............................................20

Procedure.....................................................................20

3. Hardware Setup ..................................................... 23

Names of Board Components.........................................23

I/O Address Setting.........................................................24

Setting Procedure .......................................................25

Interrupt Level Setting...................................................26

Setting Procedure .......................................................26

COM-2(PC)Fiv

Mounting Method............................................................28

Connecting the External Devices...................................31

Connecting the Cable......................................................32

4. System Reference.................................................... 33

Specifications...................................................................33

Circuitry Diagrams.........................................................34

Block Diagram.................................................................34

5. Troubleshooting...................................................... 35

QUESTIONS:..................................................................35

Is the pilot light on?....................................................35

Did the system boot up? .............................................35

Does your program work?...........................................35

Does the sample program work?................................36

Is the input data accurate?.........................................36

Still have a probrem?..................................................36

6. Appendix................................................................ 39

A. Sample Programs (for MS-DOS)................................39

COM-2(PC)F Diskette ................................................39

Sample Programs........................................................40

Switch and Jumper Settings......................................42

Cable Connection........................................................44

B. Notes on Developing Driver Software.......................56

Internal Registers.......................................................56

Baud Rate Selection....................................................57

LSI Recovery Time......................................................58

Various Aspects of Interrupt Handling in Enhanced

Mode and Compatible Mode.......................................60

C. The Details on NS16550 ............................................62

D. Difference Between the COM-2(PC)F

and COM-2(PC)V.......................................................64

7. Index ..................................................................... 65

COM-2(PC)F v

List of Figures

Figure 3.1. Names of Board Components and Default Factory

Settings..................................................................... 23

Figure 3.2. I/O Address DIP Switch............................................ 25

Figure 3.3. Interrupt Level Settings............................................. 26

Figure 3.4. Rear Panel of IBM-PC/AT......................................... 28

Figure 3.5. Removing the Cover.................................................. 28

Figure 3.6. Expansion Slot Cover................................................ 29

Figure 3.7. Anchoring the COM-2(PC)F..................................... 30

Figure 3.8. Interface Connectors (CN1 and CN2)........................ 31

Figure 3.9. CN1 and CN2 Pin Assignments................................ 31

Figure 3.10.Example Connection to a Modem ............................. 32

Figure 3.11.Example Connection to a PC..................................... 32

Figure 3.12.Example Connection to a Device............................... 32

Figure 4.1. Circuitry Diagrams.................................................... 34

Figure 4.2. COM-2(PC)F Block Diagram.................................... 34

Figure 6.1. Floppy Disk Files...................................................... 40

Figure 6.2. 9-pin Connector Diagram.......................................... 44

Figure 6.3. Flowchart of Sample Program 1................................ 45

Figure 6.4. Flowchart of Sample Program 2................................ 46

Figure 6.5. Flowchart of Sample Program 3................................ 47

Figure 6.6. Flowchart of Sample Program 4................................ 48

Figure 6.7. Flowchart of Sample Program 5................................ 49

Figure 6.8. Flowchart of Sample Program 6................................ 50

Figure 6.9. Flowchart of Sample Program 7................................ 51

Figure 6.10.Flowchart of Sample Program 8................................ 52

COM-2(PC)Fvi

Figure 6.11.Flowchart of Sample Program 9................................ 53

Figure 6.12.Flowchart of Sample Program10............................... 54

Figure 6.13.Flowchart of Sample Program 11 .............................. 55

Figure 6.14. IVR Bit Function in Enhanced Mode........................ 61

Figure 6.15.Difference in Jumpers (JP1~JP3)............................... 64

COM-2(PC)F vii

List of Tables

Table 2.1. COM Port Support for Various Programming

Languages................................................................. 21

Table 3.1. I/O Address Settings................................................. 25

Table 3.2. Example Compatible Mode Settings......................... 27

Table 4.1. Specifications............................................................ 33

Table 6.1. Data Format.............................................................. 40

Table 6.2. Switch and Jumper Settings of Sample Program 1, 2,

and 5......................................................................... 42

Table 6.3. Switch and Jumper Settings of Sample Program 3, 4, 6,

and 10....................................................................... 42

Table 6.4. Switch and Jumper Settings of Sample Program 7.... 43

Table 6.5. Switch and Jumper Settings of Sample Program 11... 43

Table 6.6. Function Selection through Internal Registers........... 56

Table 6.7. Baud Rate and Divisors............................................. 57

Table 6.8. Number of Times the IN Instruction Must be Executed

for the 2EFh Port after Accessing the LSI................. 58

Table 6.9. NS16550's Register (Short from National

Semiconductor's data book) < 1 / 2 >.................... 62

Table 6.9. NS16550's Register (Short from National

Semiconductor's data book) < 2 / 2 >.................... 63

Table 6.10. Specifications Differences....................................... 64

COM-2(PC)Fviii

Introduction

COM-2(PC)F 1

1. Introduction

About the COM-2(PC)F Board

The COM-2(PC)F is an IBM PC/AT ISA-Bus add-on interface

board for multi-channel RS-232C asynchronous communications.

It features two serial communication ports and a programmable

communication rate ranging from 50 to 115,200 bps for

communication or modem control.

Support Software of Option

-For Windows API-PAC(W32)

-For Windows 3.1 API-SIO(PC)WIN

-For MS-DOS SUPPORT-PAC(PC)103

Features

-2-channel asynchronous communication

-Supports RS-232C protocol

-Programmable communication rate from 50 to 115,200 bits per

second

-Two operational modes : Enhanced and Compatible

(COM1, COM2, COM3, and COM4)

For more information, see System Reference.

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