Atmel ATAK2270 User Manual

RFID Application Kit ATAK2270

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User Manual

4871E–RFID–04/08

Table of Contents

Section 1

Introduction.................................................................................................................1-1

1.1 RFID Products Promoted by ATAK2270 Kit ...................................................................... 1-1

1.2 Included Hardware Components ....................................................................................... 1-1

1.3 Equipment Needed ............................................................................................................ 1-1

Section 2

Getting Started ...........................................................................................................2-1

2.1 Hardware Settings and Connector Positions ..................................................................... 2-1

2.2 Software Installation........................................................................................................... 2-3

2.2.1 AVR Programming Guide .................................................................................... 2-3

Section 3

Description of the Application Board System .............................................................3-1

3.1 System Overview ............................................................................................................... 3-1

3.2 Power Supply..................................................................................................................... 3-1

3.3 Antenna Interface............................................................................................................... 3-1

3.3.1 Frequency Tuning Mode Selection ...................................................................... 3-2

3.3.2 RF Field Control................................................................................................... 3-2

3.3.3 Antenna Interface Parts List ................................................................................ 3-4

Section 4

Basic Transponder Functionality Getting Started....................................................... 4-1

4.1 System Installation............................................................................................................. 4-1

4.2 Checking Simple Transponder Function............................................................................ 4-1

Section 5

Host Software.............................................................................................................5-1

5.1 Software Structure ............................................................................................................. 5-1

5.2 Start Window...................................................................................................................... 5-2

5.2.1 Setup ................................................................................................................... 5-2

5.2.2 Options ................................................................................................................ 5-2

5.2.3 Application ........................................................................................................... 5-3

5.2.4 Exit.......................................................................................................................5-5

5.2.5 Info.......................................................................................................................5-5

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Table of Contents (Continued)

5.3 Transponder Type Software Interface Description ............................................................ 5-6

5.4 Operating Common Transponder Features ..................................................................... 5-23

5.3.1 TK5530/e5530 Read-only Transponder Menu .................................................... 5-6

5.3.2 TK5552/T5552 Read/Write Transponder............................................................. 5-7

5.3.3 TK5551 Read/Write Transponder........................................................................ 5-9

5.3.4 T5557/ATA5567 Multifunction Read/Write Transponder ................................... 5-11

5.3.5 ATA5570 Multifunction Read/Write Transponder with Sensor Input ................. 5-15

5.3.6 ATA5577 Enhanced Read/Write Transponder with AFE-Options ..................... 5-16

5.4.1 Password PWD Mode........................................................................................ 5-23

5.4.2 Answer On Request AOR Mode........................................................................ 5-24

5.4.3 Readout Manufacturer (Traceability) Data......................................................... 5-25

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1.1 RFID Products Promoted by ATAK2270 Kit

Section 1

Introduction

The RFID application kit (ordering code ATAK2270) promotes the key features of various RFID products from Atmel

The following products are supported by the kit:

 U2270B Read/write base station IC  TK5530/e5530 Read-only transponder  TK5551 Standard read/write transponder  TK5552/T5552 Read/write transponder micromodule with 1-Kbit memory  T5557/ATA5567 Multifunctional read/write transponder  ATA5570 Multifunctional read/write transponder with sensor input  ATA5577 Enhanced read/write transponder

1.2 Included Hardware Components

 Microcontroller board with piggybacked antenna board  Reader antenna coil 100 mm  Serial communication cable RS232  Jack connector cable for power supply  Power supply 120V to 240V  Installation software and documentation on CD-ROM  Atmel Standard Products CD-ROM  IC samples (3 pieces of each): U2270B-MFP; TK5530-HM232-PP; TK5551M-PP; TK5552A-PP;

T555711-TAS; T555715-PAE; ATA556711-TAS; ATA556715-PAE; ATA5570-TAS; ATA5577Mxxx-xx; ISO Card ATA556715-PAE; Coin Tag ATA556715-PAE

 Transponder SMD antenna coil SDTR 1103, 4.77 mH, Q = 25 (Manufacturer: Predan)  Transponder test board ATAB5570 with sensor input

∅

, L = 700 µH, Q = 36

1.3 Equipment Needed

 Host PC with Windows

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95 or higher

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Build up the RFID reader application system according to the configuration shown on the cover and in

Figure 2-1:

1. Plug the antenna into the socket of the interface board.

2. Connect a serial RS232 cable between the RS232 connector and either COM1 or COM2 of the PC.

3. Connect the supply line from the 12V power source to the jack connector. Alternatively use the mains SMPS.

2.1 Hardware Settings and Connector Positions

The main board with the AVR® ATmega8515L controls piggiybacked reader interface and maintains the communication with the host. On delivery the AVR is fleshed with the current firmware and does not need any special programming or settings. Check that jumper J3 on the antenna interface is in the default position en.

Figure 2-1. Application Board Unit

Section 2

Getting Started

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Getting Started

Figure 2-2. Antenna Interface Board

Figure 2-3. Application Board Top View

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2.2 Software Installation

The ATAK2270 host installation software as well as the related datasheets and documentation are provided by the CD-ROM included in the kit. Furthermore, the up-to-date software and documentation are available via the web.

Execute the setup.exe file found on the CD-ROM to launch the installation and generate the ATAK2270.exe program file. If the default settings are accepted during installation, the program file will be installed to path: X:\Programme\ATAK2270\ATAK2270.exe.

Note: Administrator rights are required to install this software.

2.2.1 AVR Programming Guide

The AVR base board (Figure 2-3) is equipped with two programming interfaces, ISP and JTAG allowing reprogramming or updating the firmware of AVR flash memory.

ISP is a downloading method. Only six I/O lines are needed. The provided header works with the ATSTK500 as well as the AVR ISP In-System Programmer. Both of these are available from Atmel or distributors for very low cost program development. To program the flash memory and the EEPROM, first connect the programming tool to the MB using a six-pin ribbon connector. Make sure that proper ori entation is maintained by aligning pin1. The files types accepted use Intel Hex format.

Getting Started

To program a hex file into the target AVR device, select “Program AVR” and then “Connect...” from the “Tools” menu in AVR Studio. Once AVR Studio has been opened, connect to the STK500 or AVRISP by selecting “STK500 or AVRISP” in the Platform List. Then select “Connect...”. The driver for the STK500 and AVRISP is then started, and the STK500 dialog should appear. Note that the system supports other programming platforms as well, like the JTAGICE or the JTAGICE mkII.

Then select the AVR target device from the pull-down menu on the “Program” tab and locate the Intelhex file to download. Select the “program” button. Repeat for the EEPROM section.

The same steps apply when using the JTAGICE MKII.

The JTAG Platform allows more control during software development by allowing real-time debugging of the source code. The JTAGICE MKII supports setting breakpoints and stepping through the code being executed on the target micro. This is very useful for a more complex software project such as this one.

Fuse Settings:

Fuse bits must be set properly for the kit to function. The only fuse bits that should be set are listed below.

 JTAG Interface Enabled; (JTAGEN = 0)  Serial program downloading (SPI) enabled; (SPIEN = 0)  Boot Flash section size = 512 words Boot start address = $FE00; (BOOTSZ = 11)  Brown-out detection level at VCC = 2.7V; (BODLEVEL = 1)  Int. RC OSC. 8MHz; Start-up time; 6CK + 64 ms; (CKSEL = 0100 SUT = 10)

All others should be unchecked.

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3.1 System Overview

The ATAK2270 application board unit (Figure 2-3) consists of a ready-to-run standard microcontroller main board equipped with the Atmel AVR® microcontroller ATmega8515L, combined with a piggybacked antenna interface board containing the U2270B reader IC.

The following functionality is controlled by the AVR microcontroller:

 Handling of the bi-directional data communication between the RS232 interface and the host PC  Execution of the read and write commands to be sent to the antenna interface  Decoding of the specific read data delivered by the antenna interface

The source program is written in C, and the compiled hex code is loaded in the 8-kByte Flash of the microcontroller.

3.2 Power Supply

Section 3

Description of the Application Board System

To operate the reader board, an external power supply in the range of DC 10V to 15V/200 mA has to be connected to the jack, alternatively use the mains SMPS. A bridge rectifier placed at the connector input is used for polarity independence.

3.3 Antenna Interface

The antenna interface (Figure 2-2) is supplied and controlled by the main board via header pin X2/1. The current power supply voltage is indicated by LED1, Power. To adapt a specific antenna coil to the resonant frequency and the Q factor, the components CANT1/CANT2 and R14 (Figure 2-2) can be changed. For the antenna included in the kit, the parameters are matched as follows:

Resonant frequency: f

Whole antenna quality factor: Q = 20, adjusted by R14

= 125 kHz ±1%, adjusted by CANT1/CANT2 with jumper 3 in

res

position dis

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Description of the Application Board System

3.3.1 Frequency Tuning Mode Selection

The reader interface has a built-in frequency tuning feature. By the host software, the resonant frequency of the LC antenna circuit can be switched in four steps. Therefore the board is equipped with two stages of high-voltage transistor switches to tune the resonator via switched capacitors.

Table 3-1. The Frequency Tuning Can Be Selected Using Jumper J3

Tuning Mode Jumper J3 Position

Disabled 1-2

Enabled 2-3

In default setting Tuning Mode is activated, allowing the adjusting of antenna frequency by host menu. The binary control of the two tuning stages enables the selection of one out of four frequency states. According to the menu definition the frequency steps are designated as follows:

High Frequency 134.2 kHz (acc. ISO11784/85)

Semi High Frequency 130 kHz

Semi Low Frequency 125 kHz

Low Frequency 121 kHz

In disabled mode, the interface operates with the fixed frequency adjusted typically to 125 kHz.

The currently selected frequency stage is displayed on the application board by the red LEDs Tune 1 and Tune 2 (shown in

3.3.2 RF Field Control

The status of the RF field controlled by the microcontroller is indicated by the yellow LED RF on.

Figure 2-2, see Table 5-1 for interpretation).

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Figure 3-1. Circuit Diagram of the Antenna Interface

Description of the Application Board System

BAS21

M15

514 15

R12

BAV21

INPUT

DVS

R13

R10

VEXT

application

for feedback

Components

BAS21

R11

VBATT

M13

CANT1

STANDBY

COIL2

OUTPUT

CANT2

GND

R14

COIL1

DGND

Antenna

M14

HIPASS

CFE

CTUNE2

R22

Components for tuning application

R18

CTUNE1

R20

R19

R16

R15

BF820

BAS21

Red

BAS21

R17

Red

LD2

R21

LD3

TUNE2

TUNE1

U2 RF

7808

IN OUT

X2/1

Green

LD1

Data in

X1/7

M11

X1/6

Data out

X2/5

X1/3

DZ1

Power

M12

Yellow

LD4

X1/11

RFon

X2/10

X2/9

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Description of the Application Board System

3.3.3 Antenna Interface Parts List

U1 U2270 B SO16 U2 LM7808 TO220

3.3.3.1 Diodes

D1 BAS21 SOT23 D2 BAS21 SOT23 D3 BAS21 SOT23 D4 BAS21 SOT23 D5 BAS21 SOT23 D6 BAS21 SOT23 D7 BAS21 SOT23 DZ1 BZX84C 5.6V SOT23

3.3.3.2 LEDs

LD1 TLMC3100 (green) PLCC2 LD2 TLMT3100 (red) PLCC2 LD3 TLMT3100 (red) PLCC2 LD4 TLMA3100 (yellow) PLCC2

3.3.3.3 Transistors

T1 BF820 SOT23 T2 BF820 SOT23

3.3.3.4 Resistors

R1 3.6 kΩ 0805 R2 360Ω 0805 R3 10 kΩ 0805 R7 1 kΩ 0805 R8 68 kΩ 0805 R9 43 kΩ 0805 R10 1 kΩ 0805 R11 390 kΩ 0805 R12 75 kΩ 0805 R13 100 kΩ 0805 R14 24Ω 0805 R15 1 kΩ 0805 R16 3.6 kΩ 0805 R17 1.5 kΩ 0805 R18 100Ω 0805 R19 1 kΩ 0805 R20 3.6 kΩ 0805 R21 1.5 kΩ 0805 R22 100Ω 0805

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3.3.3.5 Capacitors

CANT1 1.8 nF II 120 to 180 pF/100V COG CANT2 330 (270) pF/100V COG radial CTUNE1 150 pF/100V COG 0805 CTUNE2 330 pF/100V COG 0805 C3 10 µF/16V radial C4 22 µF/16V radial C5 22 µF/16V radial C6 220 nF 0805 C7 6.8 nF/100V 0805 C8 2.2 nF/100V 0805 C9 4.7 nF 0805

3.3.3.6 Miscellaneous

 SUB-D 9-pole socket  3-pole connector for coil  Gold-pin block for jumper (1 × 3-pole)  2 gold-pin block 1 × 18-pole (used for pin connector to the main board)

Description of the Application Board System

The antenna coil included in the kit measures the following parameters related to 125 kHz: Inductance L = 700 µH

Coil diameter d = 100 mm Winding number n = 60 Wire diameter dw = 0.25 mm

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