Image Processing Reference
In-Depth Information
New value
available for
transmission
Completion
of frame
transmission
Start of frame
transmission
New value
available for
read call
Notional
consumption
Notional
generation
Scheduling
latency
(frame)
Message
length
(frame)
Notification
latency
(frame)
Consumption
latency
(signal)
Time
Generation
latency
(signal)
LIN availability time (signal)
Maximum age (signal)
FIGURE .
LIN timing model.
FIGURE .
LDF file generation.
The application programmer can interface to the LTP and therefore to the LIN subnetwork through
the standardized LIN API. API calls comprise of signal oriented read- and write calls, signal-related
flag control but also node-related initialization, interrupt handling, and timed-task management.
The low-level details of communication are hidden to the application programmer using the
LTP. Specifics about signal allocation within frames, frame IDs, and other are carried within the
LDF so that applications can be reused simply by linking to different configurations described by
different LDFs. As long as signal formats do not get changed a reconfiguration of the network only
requires repeating the process described above resulting in a new target image without impact to the
