ConnexLink User’s Manual
ConnexLink User’s Manual
ConnexLink User’s Manual
ConnexLink User’s Manual
7/11/2003
18
2.2.2
2.2.2
2.2.2
2.2.2
Send Data
Send Data
Send Data
Send Data
The Host issues this command to a ConnexLink before sending a data packet to it. Broadcast
frames are sent to all registered Clients at the same time without RF-Layer acknowledgements.
Broadcast frames are not required to reach all destinations. The Host must wait for the
Send
Send
Send
Send
Data Complete
Data Complete
Data Complete
Data Complete
command before issuing any additional commands.
Data Frame:
81h
Length Low
Length High
Data
Checksum
Destination
Destination
Destination
Destination
Address
Address
Address
Address
Source Address
Source Address
Source Address
Source Address
Data
Data
Data
Data
MS Byte…LS Byte
MS Byte…LS Byte
Note: The Data must include the following header information:
•
(6) Bytes for the IEEE 802.3
destination
address, or FF FF FF FF FF FF for broadcast
packets
•
(6) Bytes for the IEEE 802.3
source
address
These unique IEEE addresses are provided by AeroComm and stored in EEPROM addresses
28h – 2Dh.
2.2.3
2.2.3
2.2.3
2.2.3
Send Data Complete
Send Data Complete
Send Data Complete
Send Data Complete
A ConnexLink issues this command upon completion of the data transmission process, as
indicated by a RF-layer acknowledgment from the destination ConnexLink. An additional byte of
data indicates a success or a failure code. This command will be returned for every
Send Data
Send Data
Send Data
Send Data
command unless the device power fails.
•
Command:
Command:
Command:
Command: 82h
•
Length:
Length:
Length:
Length: 01h
•
Data:
Data:
Data:
Data: 00h – Indicates success. 01h – Can’t send packet.
•
Checksum:
Checksum:
Checksum:
Checksum: As required
Data Frame:
82h
01h
00h
Data
Checksum
