Deditec USB-RS232-TTL-STICK Hardware-Description

USB-RS232-TTL-STICK

Hardware-Description

2010

Oktober

INDEX

1. Introduction 4

1.1. General remarks 4

1.2. Customer satisfaction 4

1.3. Customer response 4

2. Hardware description 6

2.1. Technical data 7

2.2. 3pin connection cable 8

2.3. LED's 8

3. Software 10

3.1. “VCP Driver (Virtual COM-Port)” Installation 10

4. Appendix 13

4.1. Product information 13

4.2. Revisions 14

4.3. Copyrights and trademarks 15

Index | 2Seite

Introduction

I

Introduction | Seite 3

1. Introduction

1.1. General remarks

First of all, we would like to congratulate you to the purchase of a high quality
DEDITEC product.

Our products are being developed by our engineers according to quality
requirements of high standard. Already during design and development we take
care that our products have -besides quality- a long availability and an optimal
flexibility.

Modular design

The modular design of our products reduces the time and the cost of
development. Therefor we can offer you high quality products at a competitive
price.

Availability

Because of the modular design of our products, we have to redesign only a
module instead of the whole product, in case a specific component is no longer
available.

1.2. Customer satisfaction

Our philosophy: a content customer will come again. Therefor customer
satisfaction is in first place for us.

If by any chance, you are not content with the performance of our product,
please contact us by phone or mail immediately.

We take care of the problem.

1.3. Customer response

Our best products are co-developments together with our customers. Therefor
we are thankful for comments and suggestions.

Introduction | Seite 4

Hardware description

II

Hardware description |Seite 5

2. Hardware description

This USB to RS-232 converter (TTL-Level) is suitable for e.g. debugging on
microcontroller circuits. Also your processor board will be protected by galvanic
isolation.

This little USB-Stick transmits serial data with TTL-Level (e.g. debugging
informations) on the USB port. Normally there are only TTL-Signals available on
serial ports by processors. With this tool these signals can be comfortably
displayed on your PC or notebook. The “sensitive TTL-Signals” will be savely
connected by galvanic isolation to a PC.

Hardware description |Seite 6

2.1. Technical data

+5V power supply (USB-BUS)
USB to RS-232 (TTL-Level)
A LED for TX and RX
Galvanically isolated
50 Baud ..3MBaud (configurable per software)
Windows VCP (Virtual COM Port)
Linux Driver inclusive
Dimensions: 84,5 x 21 x 12,5/9,5 mm (without cable)

Hardware description |Seite 7

2.2. 3pin connection cable

Pin

Brown

RX

White

TX

Green

GND

The connection to the stick on the RS-232 side will be made by a 3pin
connection cable. The ends of the wires are labeled with "RX", "TX" and "GND".

RS-232 Pin Assignment

2.3. LED's

Two LED’s visualisation of transmit and receivedata.

1*TX (transmit)
1*RX (receive)

Hardware description |Seite 8

Software

III

Software | Seite 9

3. Software

3.1. “VCP Driver (Virtual COM-Port)” Installation

Insert the DEDITEC driver CD in your CD drive and start “vcp_driver_install.
exe”. The “VCP driver (Virtual COM-Port)” software is also available at http://

www.deditec.de/en/entwicklungstools/download.html.

Press “Install”.

Software | Seite 10

The driver will be installed.

The “VCP Driver (Virtual COM-Port)” Software has been installed now.
Press “Close” to finish installation.

Software | Seite 11

Appendix

IV

Appendix | Seite 12

4. Appendix

4.1. Product information

Ord.no.: USB-RS232-TTL-STICK

Product: USB-RS-232 (TTL-Level)-converter for the connection

to serial ports (TTL-Level) to PC by USB

Productlink: http://www.deditec.de/en/entwicklungstools/prod/usb-rs232-ttl-

stick.html

Appendix | Seite 13

4.2. Revisions

Rev 1.00 First issue
Rev 2.00 Design change

Appendix | Seite 14

4.3. Copyrights and trademarks

Linux is registered trade-mark of Linus Torvalds.

Windows CE is registered trade-mark of Microsoft Corporation.

USB is registered trade-mark of USB Implementers Forum Inc.

LabVIEW is registered trade-mark of National Instruments.

Intel is registered trade-mark of Intel Corporation

AMD is registered trade-mark of Advanced Micro Devices, Inc.

Appendix | Seite 15

RO-USB-INTERFACE

Hardware-Description

2010

Oktober

INDEX

1. Introduction 5

1.1. General remarks 5

1.2. Customer satisfaction 5

1.3. Customer response 5

2. Hardware description 7

2.1. Overview screen 7

2.2. Technical data 8

2.3. Plug-in connector of the module 9

2.3.1. Power supply

2.3.2. USB interface

2.4. Control LEDs 10

2.4.1. Definition of the LEDs

10

3. Software 12

3.1. Using our products 12

3.1.1. Access via graphical applications

3.1.2. Access via the DELIB driver library

3.1.3. Access via protocol

3.1.4. Access via provided test programs

3.2. DELIB driver library 14

3.2.1. Overview

3.2.2. Supported operating systems

3.2.3. Supported programming languages

3.2.4. Installation DELIB driver library

3.2.5. DELIB Configuration Utility

3.3. Test programs 20

12
12
12
13

14
16
16

17
19

9
9

3.3.1. Digital Input-Output Demo

3.3.2. Analog Input-Output Demo

3.3.3. Stepper Demo

20

21

22

Index | 2Seite

INDEX

4. Appendix 24

4.1. Revisions 24

4.2. Copyrights and trademarks 25

Index | 3Seite

Introduction

I

Introduction | Seite 4

1. Introduction

1.1. General remarks

First of all, we would like to congratulate you to the purchase of a high quality
DEDITEC product.

Our products are being developed by our engineers according to quality
requirements of high standard. Already during design and development we take
care that our products have -besides quality- a long availability and an optimal
flexibility.

Modular design

The modular design of our products reduces the time and the cost of
development. Therefor we can offer you high quality products at a competitive
price.

Availability

Because of the modular design of our products, we have to redesign only a
module instead of the whole product, in case a specific component is no longer
available.

1.2. Customer satisfaction

Our philosophy: a content customer will come again. Therefor customer
satisfaction is in first place for us.

If by any chance, you are not content with the performance of our product,
please contact us by phone or mail immediately.

We take care of the problem.

1.3. Customer response

Our best products are co-developments together with our customers. Therefor
we are thankful for comments and suggestions.

Introduction | Seite 5

Hardware description

II

Hardware description |Seite 6

2. Hardware description

2.1. Overview screen

The figure below shows the control module with USB-interface (left side)
combined with an input/output module (right side). For a connection to the USB
bus, an adequate adapter module in form of a USB-stick is included.

The figure below shows the control module with USB interface (left side)
combined with a flexible conntector input/output module (right side). For a
connection to the USB bus, an adequate adapter module in form of a USB-stick
is included with.

Hardware description |Seite 7

2.2. Technical data

Single power supply +7V..+24V DC
7 control LEDs
USB interface
Transmission range up to 100m!
USB 2.0 and USB 1.1
Data transfer speed: 12 MBit/s or 1,5 MBit/s
Galvanically isolated interface using optocouplers
9 pol. D-SUB connector
Timeout feature providing ability to disconnect outputs for safety reasons
Comfortable connector system with ejection mechanism
Expandable in 16 gradations
Can be combined without any problem to other modules of the RO series

Hardware description |Seite 8

2.3. Plug-in connector of the module

2.3.1. Power supply

The input-power-supply-range lies between +7V and +24V DC. Power supply
can be realized with a standard AC/DC adaptor with 1A output current. A
suitable plug-in connector is included.

2.3.2. USB interface

module in form of a USB stick with a connection cable. The stick has two
optocouplers ensuring a galvanical isolation to the PC.

The other end of the adapater is a 9 pol. D-SUB connector which is connected
to the RO-module.

Hardware description |Seite 9

2.4. Control LEDs

LED

Description

3,3V

Internal 3,3V power supply

5V

Internal 5V power supply

Interface
Activity

Active communication- over the USB bus

ERROR

Error during USB-transfer (for details see document ”USB
protocol”)

Inputs:
Change

State change between 2 read-out cylces detected

Outputs:
Auto-Off

Due to timeout, all outputs are switched-off for safety
reasons

I/O Access

CPU-access on the inputs and outputs of the connected
modules

The USB module has a series of control LEDs. They are used for easy visual
indication of various state functions.

While switching-on the module, it should signalize the following sequence:

all five LEDs flashing briefly
right LED (I/O access) flashing briefly
all five LEDs flashing briefly

2.4.1. Definition of the LEDs

Hardware description |Seite 10

Software

III

Software | Seite 11

3. Software

3.1. Using our products

3.1.1. Access via graphical applications

We provide driverinterfaces e.g. for LabVIEW and ProfiLab. The DELIB driver
library is the basis, which can be directly activated by ProfiLAB.

For LabVIEW, we provide a simple driver connection with examples!

3.1.2. Access via the DELIB driver library

In the appendix, you can find the complete function reference for the integration
of our API-functions in your software. In addition we provide examples for the
following programming languages:

C
C++
C#
Delphi
VisualBasic
VB.NET
MS-Office

3.1.3. Access via protocol

The protocol for the activation of our products is open source. So you are able
to use our products on systems without Windows or Linux.

Software | Seite 12

3.1.4. Access via provided test programs

We provide simple handling test programs for the most important functions of
our products. These will be installed automatically by the installation of the
DELIB driver library.

So you can test directly e.g. relays or you can check the voltage of an A/D
converter.

Software | Seite 13

3.2. DELIB driver library

3.2.1. Overview

The following figure explains the structure of the DELIB driver library

The DELIB driver library allows an uniform response of DEDITEC hardware with
particular consideration of the following viewpoints:

Independent of operating system
Independent of programming language
Independent of the product

Program under diverse operating systems

The DELIB driver library allows an uniform response of our products on diverse
operating systems.

We has made sure, that all of our products can be responded by a few
commands.
Whatever which operating system you use. - Therefore the DELIB cares!

Software | Seite 14

Program with diverse programming languages

We provide uniform commands to create own applications. This will be solved
by the DELIB driver library.

You choose the programming language!

It can be simply developed applications under C++, C, Visual Basic, Delphi or
LabVIEW®.

Program independent of the interface

Write your application independent of the interface !
Program an apllication for an USB product of us. - Also, it will work with an

ethernet or RS-232 product of us !

SDK-Kit for Programmer

Integrate the DELIB in your application. On demand you receive an installation
script for free, which allows you, to integrate the DELIB installation in your
apllication.

Software | Seite 15