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API frames
Transmit Status frame - 0x8B
Description
When a Transmit Request (0x10, 0x11) completes, the device sends a Transmit Status message out of
the serial interface. This message indicates if the Transmit Request was successful or if it failed.
Note
Broadcast transmissions are not acknowledged and always return a status of 0x00, even if the
delivery failed.
Format
The following table provides the contents of the frame. For details on frame structure, see
specifications.
Frame data
fields
Frame type
Frame ID
16-bit
destination
address
Transmit retry
count
Delivery
status
Discovery
status
Example
In the following example, the destination device reports a successful unicast data transmission
successful and a route discovery occurred. The outgoing Transmit Request that this response frame
uses Frame ID of 0x47.
XTend vB DigiMesh RF Module User Guide
Offset Description
3
0x8B
4
Identifies the serial interface data frame being reported. If Frame ID = 0 in
the associated request frame, no response frame is delivered.
5
The 16-bit Network Address where the packet was delivered (if
successful). If not successful, this address is 0xFFFD (destination address
6
unknown).
The number of application transmission retries that occur.
7
0x00 = Success
8
0x01 = MAC ACK failure
0x02 = Collision avoidance failure
0x21 = Network ACK failure
0x25 = Route not found
0x31 = Internal resource error
0x32 = Internal error
0x00 = No discovery overhead
9
0x02 = Route discovery
Transmit Status frame - 0x8B
API frame
97
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