Transmit Status Frame - 0X8B - Digi XLR PRO User Manual

Operate in API mode

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
format.
Frame data
fields Offset Description
Frame type 3
Frame ID 4
Reserved 5-6
Transmit retry 7
count
Delivery
8
status
Discovery 9
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.
Frame Fields
Start delimiter
Length
Frame type
Frame ID
XLR PRO Radio Frequency (RF) Module User Guide
0x8B
Identifies the serial interface data frame being reported. If Frame ID = 0 in
the associated request frame, no response frame is delivered.
Set to 0xFFFE.
The number of application transmission retries that occur.
0x00 = No discovery overhead
0x02 = Route discovery
Offset Example
0 0x7E
MSB 1 0x00
LSB 2 0x07
3 0x8B
4 0x47
API frames
API frame
97