DVK90109
125kHz RFID Development Kit
User Manual
o
o
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<2> Searches for the header, decodes Melexis 88bits mode, controls CRC value and displays decoded data.
<3> Searches for the header and displays the data read.
<4> Only displays the data read (no decoding, no search for the header).
<Nbr of bit> = ASCII number specifying the number of bit read. <064>, <128>, <144> and <256> are implemented.
Return
<data>
err2
err3
err5
(no tag detected)
(no header found)
(read failed)
Example
REA1,128 ?
Read 128bits, searches for the header and decodes the ID read according to the standard norm ISO11784. Checks the
CRC and returns corresponding message (data read or error).
REA2,128 ?
Read 128bits, searches for the header and decodes the ID read according to the Melexis 88 bits encoding method.
Checks the CRC and returns corresponding message (data read or error).
REA3,064 ?
Read 64bits, searches for the header and returns corresponding message (data read or error).
REA4,256 ?
Reads and displays 256bits.
Note : The ISO11784/85 standard norm and the Melexis 88bits encoding method will be only performed on 128
bits read. So in these two mode (opmode <1> and <2>) the field <Nbr of bit> will be ignored and 128bits will be
always read.
Note : REA command will not set the field of the EVB90109. Before performing a read operation, the field must
be ON by using the STFon command.
4.4.6
WRI : Write Q5 tag
Write data in the Q5 tag memory.
This function will use the 100% modulation (please refer to the application note “100% modulation (On-Off
Keying)”) to write data according to Q5 tag communication protocol.
An “Ok” will confirm the success of the operation.
Syntax
Return
WRI,<data>,<address> ?
<data> = 4 bytes data (hexadecimal value) <MSB…LSB>.
<address> = 1 bytes address of the Q5 memory (hexadecimal value).
Ok
Err2 ?
(no tag detected)
Example
WRI,00AA00BB,07 ?
Write data 0x00, 0xAA, 0x00 and 0xBB into the block 7 of the Q5 memory
Ok>
Note : WRI command will not set the field of the EVB90109. Before performing a read operation, the field must be
ON by using the STFon command.
390129010902
Rev. 002
Page 8 of 13
Development Kit
Apr-2008
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