Murata DNT24 Series, Руководство по интеграции

Страница: 38 / 84

TX Data Reply
Byte Offset Field Description
0x00 Start-of-Packet 0xFB = Indicates start of protocol formatted message
0x01 Length 0x07 = Number of bytes in message following this byte
0x02 Packet Type 0x15 = TxDataReply
0x03 - 0x05 Destination MAC Address Destination MAC address, in Little Endian byte order
0x06 Status
0x00 = ACK received from destination
0x01 = no ACK received from destination (NAK)
0x02 = “Device Not Linked” error
0x07 RSSI Packet RX power in dBm, -128 to 126 or 127 if invalid
Note: TxDataReply messages are only returned to the host when the EndToEndAckEnable parameter is set to 0x01.
Table 7.3.12
GetRemoteRegister command and reply details are shown it Tables 7.3.13 and 7.3.14:
Get Remote Register Command
Byte Offset Field Description
0x00 Start-of-Packet 0xFB = Indicates start of protocol formatted message
0x01 Length 0x07 = Number of bytes in message following this byte
0x02 Packet Type 0x06 = GetRemoteRegister
0x03 - 0x05 Destination MAC Address Destination MAC address, in Little Endian byte order
0x06 Register Offset Register offset in its bank
0x07 Register Bank Register bank number
0x08 Register Size Register size in bytes, only one parameter at a time (wrong register size will
produce an error response)
Table 7.3.13
Get Remote Register Reply
Byte Offset Field Description
0x00 Start-of-Packet 0xFB = Indicates start of protocol formatted message
0x01 Length 0x0A to 0x25 = Number of bytes in message following this byte
0x02 Packet Type 0x16 = GetRemoteRegisterReply
0x03 Status Error status (0x00 = No Error, 0xE1 = Invalid Argument)
0x04 - 0x06 Originator MAC Address Originator’s MAC address, in Little Endian byte order
0x07 RSSI (-128 to 126 or 127 if invalid)
0x08 Register Offset* Register offset in its bank
0x09 Register Bank* Register bank number
0x0A Register Size* Register size in bytes
0x0B - 0x1A Register Value* Register value, all bytes in the register (only one parameter at a time)
*Bytes eight through the end of the message will not be returned in case of an error
Table 7.3.14
©2009-2014 by Murata Electronics N.A., Inc.
DNT24 Integration Guide R2.0 - 10/27/14
www.murata.com