Conrad Electronic C- CONTROL 1 UNIT M 2.0 Manuale utente

Version 01/ 06

HARDWARE-MANUAL

C- CONTROL 1 UNIT M 2.0

Item- No. 19 88 22

C-Control 1 UNIT M 1.2

Item- No. 18 88 09

Please check at www.c-control-support.net for updates

Preface........................................................................................................................ 3

Introduction................................................................................................................ 3

What is the C-Control BASlC Computer?....................................................................................... 3

Brief overview......................................................................................................................................4

C-CONTROL Connectors and Ports......................................................................... 5

Pin rows...................................................................................................................... 5

Interface Connector............................................................................................................................ 5

Jumpers...............................................................................................................................................5

Autostart: ..........................................................................................................................................................5

Uref....................................................................................................................................................................5

Connecting external circuits to ports...................................................................... 5

A vices for connecting external circuits to ports .......................................................................... 6

Special igital ports.............................................................................................................................6

Start and Reset...................................................................................................................................................6

FREQ1 und FREQ2.......................................................................................................................................... 6

IRQ.................................................................................................................................................................... 6

Beep...................................................................................................................................................................6

.RXD/TXD........................................................................................................................................................ 6

Stan ar igital I/O ports.................................................................................................................. 7

D g tal Input Port...............................................................................................................................................7

D g tal Output Port............................................................................................................................................ 7

Spec al D g tal Port Funct ons ..........................................................................................................................7

Analogports..........................................................................................................................................7

Reference voltage..............................................................................................................................................7

A/D Converter Ports..........................................................................................................................................7

D/A Converter Ports..........................................................................................................................................7

Operating Voltage...................................................................................................... 8

Starting....................................................................................................................... 8

Operat ng the C-Control M 1.2 and 2.0 together w th the Appl cat onboard.................................................. 8

Operat ng the C-Control M1.2 / 2.0 n User Appl cat ons................................................................................ 8

Operat ng the C-Control M 1.2 u. 2.0 together w th the Interface Adapter ..................................................... 8

Connection to a PC..............................................................................................................................9

Running the Integrate Development Environment (IDE).............................................................9

Downloa to the C-Control Unit......................................................................................................9

EEPROM Boot Option (only M 2.0 un Station).............................................................................9

Running the user program............................................................................................................... 10

Technical specifications ........................................................................................ 10

Preface

Dear customer,

Thank you very much for taking the excellent decision to purchase a C-Control product.

C-Control - This name stands for outstanding high-quality products in the field of Automation,

measuring, and controlling The products are characterized y expert competence, extraordinary

efficiency and permanent innovation. The products of the C-Control family offer optimum solutions

even for the most demanding applications for am itious ho y electricians as well as for professional

users. We offer the perfect technology and the relia le quality of our C-Control products at a cost-

performance ratio that is almost un eata le.

The C-Control products have een designed using state-ofthe-art technology. The products meet the

requirements of the current European and national guidelines. Conformity has een proven and the

relevant statements and documents have een deposited at the manufacturer.

We kindly request the user to follow the operating instructions to preserve this condition and to ensure

safe operation!

This manual descri es the mechanical and electrical details of the C-Control Unit M 1.2 and M 2.0.

The programming related details a out this comuters you will find in the manual for the programming

language BASIC++

Please check at www.c-control-support.net for updates

Conrad Electronic GmbH

D-92240 Hirschau

Introduction

What is the C-Control BASlC Computer?

Small microcontrollers can everywhere e found. They mostly are programmed in assem ly language

which requires a deep knowledge in this language and processor architectures. The manual for the

controller counts most times some hundred pages and is hard to understand. To learn the assem ly

language you additionally have to study ooks a out.

Therefore C-control computer have a operating system on oard and can e programmed in BASIC.

BASIC ist not only easy to learn, it is very efficient concerning the memory usage too. A BASIC

program needs a out 1/5 of memory that would e needed if the same application is programmed in

assem ly language.

BASIC++ is the language to program these microcontrollers without special knowledge. Around the

core of standard BASIC instructions there are few additional instructions to use the controller standard

environment hardware for applications (such as a LCD).

For experienced programmers BASIC++ offers features (such as import code from a li rary) which are

a must for a modern programming language.

The new C-Control BASIC computer are compact units for versatile applications and support serial

communication to other devices and support non volatile saving of data.

The very fast ececution of BASIC code and an advanced new Development Environment makes the

C-Control system a powerful tool for development of Applications and complete products

The interface to the computer’s environment consist of eight analog input ports, 2 analog output ports

and 16 digital itports (each programma le independent as input or output ports) This computer is

a le to synchronize the internal sytem clock with a DCF77 receiver to run your applications precisely

time synchronized if required. Event or frequency count applications are also supported y the

controller hardware.

Some of the digital ports can e configured to o tain special functions controlled y the operating

system (e.g. driving IIC-Bus devices)

Brief overview

A/D-Ports

- 8 x 8 Bit A/D, 0-5 V also as digital port usa le

- Reference voltageis operation voltage or can e applied from external

Digitalports

- 16 programma le as input or output

- Pullup resistors are switcha le

D/A-Converter

- 2 PWM outputs, PWM-Rate 1953 Hz

- alternate function for servocontrol is possi le

DCF/ FREQ1-Input

- Digital port with internal 10k pullup resistor prepared for connecting a DCF77 active antenna with

open collector output or frequency measurement up to 30kHz

- alternate function as eventcounter is possi le

FREQ2-Input

- Digital port with internal 10k pullup resistor for frequency measurement up to 30kHz

- alternate function as eventcounter is possi le

IRQ-Input

- Interrupt input IRQ (can e replaced y other interrupt sources)

- (20ms Timer,RF Moule, IR Module )

Serial Interface

- 9600 Baud, 8 Bit, 1 start it, 1 stopp it, no parity no Handshake, CMOS/TTL-Level

–(19k2, 38k4 possi le)

–

C-CONTROL Connectors and Ports

Pin rows

All useful signals and ports of the computer are connected to two rows of pins, that can e directly

plugged into your application. The pictures show the top view (the pins are located at the opposite

side).

Interface Connector

Even if all useful signals are availa le at the pin rows, the

serial and IIC-Bus interface is availa le at a seperate

connector for easy plug and play use (protected against

reverse polarity and supplying the operating voltage)).

Jumpers

The C-Control Computer has to jumpers: AUTOSTART and UREF

Autostart:

JP2 at Unit M2.0

JP9 at Unit M1.2

If this jumper is attached the user program stored in the memory will e started when the operating

voltage is applied. If this jumper is not attached, the pin START has to e tied to GND for a short

moment to run the user program. If you use the computer together with the Application-Board, this

jumper must not e attached ecause the Application-Board provides a START utton, which is

connected to this pin.

Caution

In all cases it is required to remove this jumper if a user program download to the computer

shall be executed.

Uref

JP1 at Unit M2.0

JP8 at Unit M1.2

This jumper connects the reference voltage for the AD-coverter to the 5V operating voltage. The

accuracy of the 5V voltage provided y a voltage regulator is fitting the requirements in common

applications. To achieve more accuracy a dedicated precise 5V reference voltage can e applied at

the Uref terminal. In this case the jumper has to e removed.

Caution

Other voltages than 5V (+-10%) are not allowed to be connected to this terminal.

To operate the computer together with the Application-Board, this jumper has to be removed.

Connecting external circuits to ports

All usa le signals and ports of the computer are connected to two rows of pins, that can e directly

plugged into your application. So the controller ports can e connected to the user application circuit.

There are three types of ports to distinguish

-special digital ports

-standard I/O Ports

-analog ports

Advices for connecting external circuits to ports

Outputs – HI level

The total output current of all ports has to be limited to less than 20mA if the Unit M 2.0 is

supplied with 12V operating voltage (at the dedicated 12V terminal )

The total output current of all ports has to be limited to less than 20mA if the Unit M 2.0 is

supplied with 5V operating voltage (at the dedicated 5V terminal )

If external voltages >5V are applied to output the ports, a current into the output ports occures.

This is permitted only if the current is limited to less than 1mA by a resistor.

Outputs - LO level

A LO level output can be considered to be a short from the voltage source to GND. The current

flow to GND must be limited to less than 10mA (e.g. by a resistor).

Inputs

If external voltages >5V are applied to the input ports, a current into the input ports occures.

This is permitted only if the current is limited to less than 1mA (e.g. by a resistor).

Disregarding this rules will immediatele result in permanent damage of ports or the

C-Control Unit itself and connected devices

Special digital ports

All special digital ports of the unit are connected to pull up resistors as far as they are inputs.

Start and Reset

This ports may e connected to push uttons if a manual start or stop of user programs is required.

Push the START utton to run a BASIC program, downloaded previously to the unit’s memory. Press

RESET to stop a running program and entering the download mode.

To ensure proper function, the AUTOSTART jumper at the unit must e removed.

JP2 at Unit M2.0

JP9 at Unit M1.2

FREQ1 und FREQ2

This ports are always and exclusivly inputs. The primary operation is frequency counting in the range

from 0 to 32kHz. FREQ 1 supports the feature to synchronize the system clock if a DCF77 receiver

module is connected to this port. The synchronization is done automatically in the ackground, i.e. no

user action is required. The receiver module must provide a open collector output to switch this port lo.

Use shielded ca les to connect the receiver module to the unit.

IRQ

The IRQ port is alwas input and serves the immediate reaction on an external request i.e the current

operation is interrupted an the external event is serviced y a appropriate Interrupt Routine. The IRQ

input is negative edge triggered.

Beep

The BEEP port is always an output an usually connected to a piezo uzzer. He serves for program or

alert status indications during normal program operation. During de ugging your program this uzzer

may e useful also. The audio frequency ranges from 10kHz to 100Hz.

.RXD/TXD

The serial interface (RXD=input TXD=output) is designed for 5V digital logic level, You never must

connect a RS232 interface directly to this ports. This would immediately result in permanent damage

to the C-Control computer

Standard digital I O ports

The C-Control Computer provides two standard yteports (16 itports, P1 to P16). Each itport can e

used as input or output port. Both yteports are provided with software switcha le pull up resistors

(30k). Each of the eight analog ports (A/D-converter) can e alternatively used as a standart digital

I/O port if this function is ena led in the configuration register. Each of this port can then e

considered as standard itport (P17 to 24) ut has no switcha le pull up resistors. More details you

will find in the BASIC++ Manual.

Digital Input Port

Digital input ports are used to request an external switch status. A digital input is on undefined logical

level if nothing is connected (eg. an external switch is open) Therefore it is recommended to tie the

port to a defined level eg. conncting a pull up resistor to the port. In this case a closed switch causes

the port reading as „false“ (logical lo level) and an open switch will e read as „true“ (logical hi level )

After applying the operation voltage or after entering the reset state all ports are switched to inputs.

Digital Output Port

If a digital port is switched to output you can connect cicuits, transistors or LEDs with current limiting

resistors. The maximum load (output) current of each port must not exeed 10mA. In all cases a current

limit (e.g y connecting a resistor) has to e ensured. Otherwise a immediate and permanent damage

of ports can result. The port function ( if a port is input or output) is controlled during program

execution. After applying the operation voltage or after entering the reset state all ports are switched to

inputs.

Special Digital Port Functions

The operating system offers some special functions which occupy dedicated ports. This functions can

e used e.g. to drive IIC-Bus devices connected to port 9 and 10. More details regarding this point you

will find in the BASIC++ manual.

Analogports

The C-Control Computer offers you eight A/D ports and two D/A-ports (witch servo drive capa ilities

as alternate function). The maximum input conversion range of the A/D-converters is fixed y the

applied reference voltage. The maximum output voltage of the D/A-converters is independent of the

reference voltage and always as high (and accurate) as the operating voltage.

Reference voltage

Before using the A/D-converters, the reference voltage has to e connected with the reverence

voltage input of the C-Control Computer. This voltage defines the maximum input voltage applied to

the A/D converters and will cause a A/D conversion result of 255. For the most applications the 5V

operating voltage is sufficient accurate and can directly e used as reference voltage. If more

precission is required, an external reference voltage can e applied to the Uref input. All

measurements of the A/D converters are related to GND

A/D Converter Ports

All kind of sensors may e connected to the A/D-ports, if they match the maximum A/D input voltage.

The A/D converters have 8 it resolution i.e one digit corresponds to 19.6mV. Protect the A/D-ports

with a 10k serial resistor if the input voltage applied to the ports can exeed voltages a ove 5V. This

resistor will not affect the conversion accuracy and provides a over voltage protection up to 12V

D/A Converter Ports

The two 8 it D/A converter are PWM (Pulse Width Modulated) converters. The output pulse consissts

of 256 seperate sections swiched to logic lo or hi related to value of the D/A conversion output. If a

conversion output of 128 is required, 128 sections are set to hi and the remaining 127 sections are

hold lo. This waveform is repeated at a rate of 1930Hz, each single section is of 2us width. To convert

this PWM signal into a true analog value a simple RC low pass filter is working fine. Attention has to

e paid to the remaining ripple (deviations from ac onstant output voltage, varying with tim) which

depend on the load, connected to the RC filter. For more precision an active circuit is recommended.

Driving lamps or LEDs with this PWM do not require a filter ecause the repetition rate is to fast to e

realised as flickering of light.

Please note that a filtered PWM output is not exactly at zero volts if the D/A converter output is set to

zero. The reason is that the port output lo voltage is approx. 50mV and a 2us pulse is remaining at the

D/A output even the converter is programmed to a zero output. In this case the filter output will e

around 70mV for a D/A converter output programmed to zero.

The D/A-ports can e programmed for an alternate servo drive function. Details regarding this feature

you will find in the BASIC++ manual

Operating Voltage

The C-Control Computer contain an integrated LVI (Low Voltage Inhi it) circuit. It prevents CPU male

functions in case of low voltage conditions. Otherwise the Flash memory ( containing operating system

and user program) may unintentionally e erased. An under voltage condition will cause the CPU to

enter the RESET state. If you are facing permanent unexpected reset conditions in your application,

the usual reason is a short reak down of your operating voltage.

This unexpected reset conditions will lead to a loss of your program stored in the Flash, if the

computer receives data from the serial interface at the same time. (RESET=DOWNLOAD MODE).

This pro lem will not appear if the unit is in the Autostart Mode with the corresponding jumper

attached. The minimum operating voltage is 4.8V

The following chapter explains how the operating voltage is applied, depending on the hardware

environment.

Starting

The C-Control Computers require a Development Environment running on a PC. It features the

program downloader. The compiled BASIC program is transmitted to the C-Control Computer via the

RS 232 serial interface. To match the different voltage levels of the C-Control Unit and the RS232

interface, a special converter is required. Your C-Control Application-Board contains this converter

already.

Operating the C-Control M 1.2 and 2.0 together with the Application oard

Other than for the M 2.0 the Application Board is (without the das Unit Adapter module 198875) only

suita le for programming the M 1.2. The M 2.0 is plugged to the connectors at the center of the oard,

the M 1.2 to the connector at the right side of the Application oard. For Details please see the manual

for the Application Board.

The Application Board contains a 5V regulator and the RS 232 interface circuit. The input voltage to

the regulator at te oard is 9...15V applied via a terminal or a DC jack

Terminal 9 to 15V DC

Connect the operating voltage to this terminal and carefully check for correct polarity. Advice regarding

polarity you find printed at the oard or in the manual for the Application Board.

DC Jack 9 to 15V DC

This jack is suita le to connect a standard power suply. Ground is located at the plug coat, +5 is

located at the plug’s center. Please check for proper polarity efore connecting the power supply to

the oard.

Operating the C-Control M1.2 / 2.0 in User Applications

Both units can even e programmed when plugged into your application (in circuit programming). In

this case your application has to provide a regulated 5V operating voltage and a serial interface circuit

connected to the PC. The Unit M 2.0 may e alternatively connected to 8...12V DC when using the

unit’s on oard voltage regulator.

If your Application does not support this requirements you can use the C-Control RS232 /USB Interfce

Adapter (198834 or 198318) for incircuit programming. Please see the corresponding section elow in

this document.

Operating the C-Control M 1.2 u. 2.0 together with the Interface Adapter

The RS232 / USB Interface Adapter (198834 or 198318) contains a 5V regulator, providing the

operation voltage for the unit.It also provides the circuit to a RS232/USB connection. The C-Control

Computer is connected to the interface adapter y a ca le (198876) and is in circuit programma le

this way after applying the operation voltage to the adapter.

Terminal 9 to 15V DC

Connect the operating voltage to this terminal and carefully check for correct polarity. Advice regarding

polarity you find printed at the oard or in the manual for the adapter

DC Jack 9 to 15V DC

This jack is suita le to connect a standard power suply. Ground is located at the plug coat, +5 is

located at the plug’s center. Please check for proper polarity efore connecting the power supply to

the adapter.

Caution

If you connct a C-Control Unit M 1.2 / 2.0 to the Interface Adapter, the operating voltage may

either be provided by your application or by the Interface Adapter but never by both at the

same time.

Never connect the Interface Adapter to a C-Control Unit if it is plugged into an application that

needs more than 100mA current consumption. In this case the operating voltage must be

provided by the user application. Otherwise the voltage regulator at the Interface Adapter will

pemanently be damaged and may cause damage of the C-Control Unit and connected

components.

Connection to a PC

The C-Control Computer needs a connection to a PC for downloading the user program. Depending

on the hardware environment you now may connect the Application Board or the RS232/USB

Interface Adapter to your PC. Together with the Application Board or Interface Adapter a dedicated

interface ca le was supplied. Connect this ca le to the PC serial interface

Running the Integrated Development Environment (IDE)

Apply the supply voltage now and start the BASIC++ IDE for a download of your program.

The BASIC++ manual, included in the DIE, offers you more advice concerning this matter.

Download to the C-Control Unit

If no error is encountered during compilation, the program downloaded can e started. The C-Control

Unit is ready for download if it is in the RESET-State. Press the RESET utton at the Application

Board, or tie the RESET pin low for a moment, if you use the unit stand alone. Make sure that the

START jumper is removed. For details concerning the download with the IDE please refer to the

BASIC++ manual. Depending on the program size the download lasts etwen 1s for short programs

and up to a minute for large programs. The LEDs located at the interface Adapter and the Application

Board shows activity at the interface lines, the download window on your PC shows the progress.

After download the connection to the PC either may stay (e.g. for program outputs to a terminal

program) or can e removed if desired.

EEPROM Boot Option (only M 2.0 und Station)

The Operating System Versions a ove 2.05 offer the option to load a user program from a EEPROM

e.g. in form of a „Chip-Card“. This is very comforta le if the user program has to e updated in the field

without a PC availa le or if qualified personnel for a manual program download is not present. The

EEPROM Boot Option is set als default ut can e switched off. The procedure is similar to a usual

downlaod. A RESET causes the Unit to enter the Download Mode and the Operarting System tries to

identify a EEPROM containing a valid program file. If no EEPROM is connected or the loaded file is

not valid, the usual procedure (download from serial interface) is applya le. If a EEPROM containing a

valid program file is connected then the program is copied into the FLASH Memory.

A program file on EEPROM is defined to have the first yte in memory loaded with the value $55. The

memory eyond the program ytes can e used as data memory. The oot option is set on/off with a

dedicated small BASIC program. The oot file located on EEPROM is created with a special program

running on a C-Control Unit. Details you will find in the Programmers’s Manual

Caution

EEPROMs used as standard data memory must not have a value $55 loaded to the first byte in

memory, if the EEPROM boot option is active. The boot option supports EEPROMs

manufactured by MICROCHIP only.

Running the user program

After download of the user program to the C-Control Unit, the program is permanently (until a new

program download) stored at the unit’s Flash memory. You may now attach the START jumper if a

permanent Auto-Start operation of yout unit is desired.

If the jumper is attached the user program stored in the memory will e started when the operating

voltage is applied. If this jumper is not attached the pin START has to e tied to GND for a short

moment to run the user program. If you use the computer together with the Application-Board, this

jumper must not e attached ecause the Application-Board provides a START utton, which is

connected to this pin.

Technical specifications

Operating voltage 5V DC, +-5%

Extended voltage reange ´ 9-15V DC (only Unit M 2.0, with internal regulator)

Current consumption M 2.0 app. 50 mA / M 1.2 ca. 8 mA

Dimensions M 2.0 app. 50mm x 25mm / M1.2 app. 42mm x 42mm

User variables 64 Byte RAM (M 2.0 with BASIC++ offers 140Byte)

User program memory 10 kByte FLASH

Operating system 6 kB FLASH

Bus clock M 2.0 8 MHz / M 1.2 2MHz

A/D-ports 8 x 8 Bit A/D Converter, 0.....5V

Reference voltage Uref 5V intern or extern

Digital ports 16 standard I/Oports, pull up switchable

Digita output port ( 0.2mA load) O,l v < Uout,low < 0,3V/(ub - 0,3V) < Uout,high < (Ub - 0,1V)

Digital input port level OV < Uin,low C (0,2*ub) / (0,7*Ub)< Uin,high < Ub

Maximum port output load +- 10mA

D/A-ports 2 x 8 Bit 1930 Hz PWM

Serial interface 8N1, 9600 Baud, no Handshake

Temperature range 0.....60 C

Caution

The total Current Output (Source Current) of all Ports has to be kept lower than 20mA if the

Unit M 2.0 is powered with 12V.

Impressum Diese Bedienungsanleitung wurde erstellt für Conrad Electronic GmbH

Alle Rechte einschließlich Übersetzung vorbehalten Reproduktionen jeder Art, z B Fotokopie, Mikroverfilmung,

oder die Erfassung in elektronischen Datenverarbeitungsanlagen, bedürfen der schriftlichen Genehmigung des

Herausgebers Nachdruck, auch auszugsweise, verboten Diese Bedienungsanleitung entspricht dem technischen

Stand bei Drucklegung Änderung in Technik und Ausstattung vorbehalten

100 % RecyclingPapier.Chlorfrei gebleicht.

Imprint These operating instructions are created for Conrad Electronic GmbH, Klaus-Conrad- Str 1, 92240

Hirschau/ Germany

No reproduction (including translation) is permitted in whole or part e g photocopy, microfilming or storage in

electronic data processing equipment, without the express written consent of the publisher The operating instructions

reflect the current technical specifications at time of print We reserve the right to change the technical or physical

specifications

100 %recycling paper. Bleached without chlorine.

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