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DVK90121 

Development kit for the MLX90121 transceiver 

 User Manual 

 

 

 

 

390129012102 

Page 1 of 13 

Development Kit 

Rev 006 

 

Apr-2009 

Features and Benefits 

  Standard ISO communications 

  User interface software 

  RS232 serial communication 

  Dedicated instruction set  

  6 to 9Volts supply compliant 

 
 

Ordering Information 

 
Part No. 

 

DVK90121  

 

 

General Description 

 
The  development  kit  DVK90121  has  been  developed  by  Melexis  to  create  specific  applications  using 
international  standards  ISO/IEC  and  to  evaluate  the  advantages  and  the  high  flexibility  of  the  MLX90121 
13.56MHz multi-norms RFID transceiver.  
 
The  DVK90121  consists  of  the  evaluation  board  EVB90121  connected  to  the  RFID  universal  development 
board.  The  universal  development  board  contains  the  firmware  for  the  communication  with  the  MLX90121 
and the communication with a computer through the RS232 serial interface. 
 
A  user  interface  software  UT121,  developed  by  Melexis,  allows  the  user  controlling  the  communication  by 
initializing the MLX90121 device, sending specific commands and receiving the corresponding reply. 
 
 

 

 

Figure 1:

 DVK90121 block schematic

UT121 

User interface 

Universal Development board 

Pre-programmed firmware used as an interface 

between the PC and the EVB90121 

EVB90121 

Evaluation board of the Mlx90121 

13.56MHz RFID transceiver 

R

S

2

3

2

 

Transponder

MLX90121  

 

Digital interface 

Summary of Contents for DVK90121

Page 1: ...RFID transceiver The DVK90121 consists of the evaluation board EVB90121 connected to the RFID universal development board The universal development board contains the firmware for the communication wi...

Page 2: ...SOFTWARE 4 4 WORKING WITH THE UT121 USER INTERFACE SOFTWARE 4 4 1 THE FIRST RUN 4 4 2 MAIN WINDOW 5 4 3 COMMUNICATION STATUS 5 4 4 DEVICE STATUS 6 4 5 MAIN MENU 6 4 6 COMMAND TREE 7 4 7 COMMAND LIST...

Page 3: ...g the flat cable provided in the box Connect the flat cable in the PORTA connector of the universal development board in the middle of the three 10 pins connectors in line 3 Connect the universal deve...

Page 4: ...sn t write anything to the system folders 4 Working with the UT121 user interface software 4 1The first run When you execute the UT121 software for the first time the following window appears It conta...

Page 5: ...121 user interface software 4 3Communication status The UT121 user interface software can communicates the RS232 or USB serial interfaces The communication status part displays the status of the selec...

Page 6: ...e software File All options to save and load a Command List A Command list is a group which may contain commands to be executed Options Automatic update options o Program settings Option to save the f...

Page 7: ...ructure can be modified by the user and a right click on the name of the group or sub group opens a popup menu with several options Then the user can append a subgroup delete the entire group append a...

Page 8: ...he MLX90121 and all commands grouped will be executed with the same registers configuration When a group or sub group is selected the UT121 software automatically sends the current configuration to th...

Page 9: ...on Figure 6 Screen of communication The content of the screen can be automatically written to a file To do this the file name must be specified and the index Save log to must be selected File name can...

Page 10: ...of the data direction according to the standards specification 2 Please note that the commands of the UT121 software are case insensitive Then it is possible for the user to type commands with capital...

Page 11: ...Key word Iso14b 15 crc 15 Anticol prefix byte APn 2 slots The 16bits CRC type B is automatically calculated by the firmware and send with the request o ATTRIB Op code Parameters Key word Iso14b 1D920...

Page 12: ...th the option bit set Flags to 42 43 or cleared Flags to 02 03 O INVENTORY Op code Parameters Key words Iso15 06010100 crc Slot 15 06 Flags of the request 01 Inventory command 01 mask length in this c...

Page 13: ...erves the right to change the documentation the specifications and prices at any time and without notice Therefore prior to designing this product into a system it is necessary to check with Melexis f...

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