NEO 2 Interface Developer’s Guide
Copyright © 2019, International Technologies & Systems Corporation. All rights reserved.
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10.
Peer To Peer Functionality
Peer To Peer functionality (which can only be used in Pass-Through mode) allows the sending
and receiving of NDEF messages to/from a mobile device.
See
NDEF (NFC Data Exchange Format)
for more information about NDEF payload
composition.
10.1.
Peer To Peer Send A Message (C7-9A)
Command Frame
Byte 0-9
Byte 10
Byte 11
Byte 12
Byte 13
Byte 14 …
Byte 14+n-1
Byte 14+n n
Header Tag &
Protocol
Version
Command
Sub-
Command
Data
length
(MSB)
Data
length
(LSB)
Data
CRC
(MSB)
CRC
(LSB)
ViVOtech2\0
C7h
9Ah
Variable
See Data
Format below
Peer To Peer Send A Message Data Field for Command Frame
Data Field
Length (bytes)
Description
Timeout
1
Time in Seconds.
Message
Variable
NDEF message to be sent to the phone
Response Frame
Byte 0-9
Byte 10
Byte 11
Byte 12
Byte 13
Byte 14
Byte 15
Header Tag &
Protocol
Version
Command
Status
Data length
(MSB)
Data length
(LSB)
CRC(MSB)
CRC(LSB)
ViVOtech2\0
C7h
00
00
10.2.
Peer To Peer Receive A Message (C7-9B)
Command Frame
Byte 0-9
Byte 10
Byte 11
Byte 12
Byte 13
Byte 14
Byte 15
Byte16
Header Tag &
Protocol
Version
Command
Sub-
Command
Data
length
(MSB)
Data
length
(LSB)
Data
CRC
(MSB)
CRC
(LSB)
ViVOtech2\0
C7
9Bh
00h
01h
Timeout
(1 byte, time in
seconds)