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QScreen C User Guide

Table of Contents

PART 1 GETTING STARTED

Introduction. How to Use This Manual

Chapter 1: Getting to Know Your QScreen Controller

PART 2 PROGRAMMING THE QSCREEN CONTROLLER

Chapter 2: Your First Program

Chapter 3: The IDE: Writing, Compiling, Downloading and Debugging Programs

Chapter 4: Making Effective Use of Memory

Chapter 5: Real Time Programming

Chapter 6: Failure and Run-Time Error Recovery

PART 3 COMMUNICATIONS, MEASUREMENT, AND CONTROL

Chapter 7: Digital and Timer-Controlled I/O

Chapter 8: Data Acquisition Using Analog to Digital Conversion

Chapter 9: Serial Communications

Chapter 10: The Battery-Backed Real-Time Clock

PART 4: PUTTING IT ALL TOGETHER

Chapter 11: A Turnkeyed Application

PART 5: REFERENCE DATA

Appendix A: QScreen Electrical Specifications

Appendix B: Connector Pinouts

Appendix C: QScreen Schematics

Appendix B

<< Previous | QScreen Schematics

Connector Pinouts

Pin-outs for all I/O connectors on the QScreen are provided here.

QScreen Connectors

The pinouts of all of the connectors on the QScreen Board are presented below.  To locate the connectors on the board, consult Figure B–1  and the white silk–screened labels on the visible side of the QScreen Board.  The arrows in the figure point to the locations of pin 1 on each connector.

Figure B–1   QScreen Connectors, Headers, and Switches. 

 

Table B‑1     H12: Power Header

Pin

 

Signal

1

–

Vin

2

–

GND

3

–

+5v

4

–

VBat

 

Table B‑2     H4: Serial Header

Signal

 

Pins

 

Signal

/TxD1

–

1

2

–

/RxD1

GND

–

3

4

–

GND

RS485 XCVR-

–

5

6

–

RS485 XCVR+

/TxD2

–

7

8

–

/RxD2

GND

–

9

10

–

+5V

 

Table B‑3     H3: Field Header

Signal

 

Pins

 

Signal

GND

–

1

2

–

+5V

AGND

–

3

4

–

V+RAW

/TxD1(/TxD2)

–

5

6

–

/RxD1(/RxD2)

XCVR-(TxD2)

–

7

8

–

XCVR+(/RxD2)

PA7

–

9

10

–

PA6

PA5

–

11

12

–

PA4

PA3

–

13

14

–

PA2

PA1

–

15

16

–

PA0

PE7

–

17

18

–

PE6

PE5

–

19

20

–

PE4

PE3

–

21

22

–

PE2

PE1

–

23

24

–

PE0

 

Table B‑4     H1,H8,H9: Wildcard Port Header

Signal

 

Pins

 

Signal

GND

–

1

2

–

+5V

/IRQ

–

3

4

–

V+RAW

SEL1/XMIT1

–

5

6

–

SEL0/XMIT+

MOSI/XCV-

–

7

8

–

MISO/XCV+

/RESET

–

9

10

–

SCK

/MOD.CS

–

11

12

–

16 MHz

E

–

13

14

–

R//W

/OE

–

15

16

–

/WE

AD7

–

17

18

–

AD6

AD5

–

19

20

–

AD4

AD3

–

21

22

–

AD2

AD1

–

23

24

–

AD0

 

 

Table B‑5       Serial 1 Connector                     Table B‑6       Serial 2 Connector

Signal

Pins

Signal

 

Signal

Pins

Signal

DCD1/DSR1/DTR1

–

1

 

 

 

 

DCD2

–

1

 

 

 

 

 

 

6

–

DSR1/DTR1/DCD1

 

 

 

 

6

–

DSR2/DTR2/DCD2

/TXD1

–

2

 

 

 

 

/TXD2

–

2

 

 

 

 

 

 

7

–

CTS1

 

 

 

 

7

–

CTS2/RTS2

/RXD1

–

3

 

 

 

 

/RXD2

–

3

 

 

 

 

 

 

8

–

RTS1

 

 

 

 

8

–

RTS2/CTS2

DSR1/DTR1/DCD1

–

4

 

 

 

 

DSR2/DTR2/DCD2

–

4

 

 

 

 

 

 

9

–

NC

 

 

 

 

9

–

NC

DGND

–

5

 

 

 

 

DGND

–

5

 

 

 

Notes:

 

Notes:

NC indicates no connection

 

NC indicates no connection

Pins 1, 4 and 6 (DCD1/DSR1/DTR1) are connected.

 

Pins 1, 4 and 6 (DCD2/DSR2/DTR2) are connected.

Pins 7 and 8 (CTS1/RTS1) are connected.

 

Pins 7 and 8 (CTS1/RTS1) are connected.

 

 

Table B‑7   H11: Remote Contrast Beeper Header

Signal

 

Pins

 

Signal

GND

–

1

2

–

+5V

+5V

–

3

4

–

V+RAW

VCON-

–

5

6

–

VEE

GND

–

9

10

–

REMOTE_BEEPER

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