Melexis DVK90121 User Manual Download Page 3

DVK90121 

Development kit for the MLX90121 transceiver 

 User Manual 

 

 

 

 

390129012102 

Page 3 of 13 

Development Kit 

Rev 006 

 

Apr-2009 

1.  Unpacking the system 

The DVK90121 is delivered with all the components, documentations and software listed below. 
 

 

Evaluation board EVB90121 with its specific antenna, 

 

Universal development board, 

 

RS232 and flat cables for PC and EVB90121 connections, 

 

Disk set consisting of the UT121 software and associated documentations. 

2. Connecting the system 

When you start with the development kit DVK90121, please follow the procedure described below. 
 
1)  Connect the PCB antenna to the evaluation board EVB90121 using the SMA connector.  
2)  Connect the EVB90121 with its antenna to the universal evaluation board using 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  development  board  to  the  PC  using  the  RS232  cable.  The  RS232  cable  is  fitted 

into the DB9 connector of the universal development  board  and  the  other end is inserted into the COM 
port of the PC (DB9 connector). The chosen COM port can be selected in the UT121 software.   

4)  Connect the Power Supply of the universal development board and EVB90121. Both Power Supplies are 

required with a standard 2.1mm barrel connector and must be DC 6 to 9 Volts. 

5)  Switch on SW1 button on the universal development board. 

 

 

Figure 2:

 Connection of the DVK90121  

 

Important Note

The supply must be between 6 to 9 Volts DC. Higher voltage may damage permanently the 

DVK90121 circuit.

 

Universal development board 

Evaluation board EVB90121 

PCB antenna 

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...

Reviews: