DVK90109
125kHz RFID Development Kit
User Manual
WRite Hitag1
WRH,<command>,<address>,<data> ?
Perform a write operation for Hiatg1 tag with the data defined in the <data>
parameter
Note : Be careful that a value is necessary in all fields defined by the instruction. The default value defined in the
following instruction set is only the value set by the program during the initialization phase. This means that if the
CFG instruction is not sent, the <Encoding> and <Baudrate> fields will take default values being respectively
biphase and 4kbit/s.
4.3
Error Instruction
No
0
1
2
3
5
6
8
Name
Instruction error
Definition error
No tag detected
Header not found
Read operation failed
Others error
Measure Frequency Antenna
Meaning
If the Opcode syntax is not correct or not defined.
If the definition syntax is not correct.
If no transponder has been detected.
If the header cannot be found in the read code.
If the calculated CRC or parity check doesn’t correspond to the read value.
If a problem occurs during antenna frequency measurement (value too high, no
Message
err0 ?
err1 ?
err2 ?
err3
err5 ?
err6 ?
err8 ?
signal …)
4.4
4.4.1
Instructions set
Version (VER)
Get the firmware version.
This command can be used to control the serial connection RS232.
Syntax
Return
Example
VER ?
Melexis RFID <Development kit> V< Version >
VER ?
Reply: Melexis RFID DVK90109 V2.0
4.4.2
Set Field (STF)
Set the magnetic field ON or OFF.
Syntax
Return
Example
STF<on/off> ?
<on/off> = Characters defining the current state of the field (<on> to put the field ON and <off> to put the field OFF).
Default value: <on>.
Ok
STFon ?
Reply: Ok
390129010902
Rev. 002
Page 6 of 13
Development Kit
Apr-2008
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