NETCAR-Analyzer
Timing Analysis and Resource Usage
Optimization for Controller Area Network
Screenshot of NETCAR-Analyzer during an optimization
run. The left-hand graphic shows the response times
(by decreasing priority) for different offset
configurations. The spreadsheet in the background FEATURES:
contains the set of frames, the different offset
configurations tested, the corresponding worst-case
response times (WCRT) and certain characteristics of Worst-case response
the ECUs, such as the queuing policy at the micro- times / jitters on CAN
controller level (e.g., FIFO or prioritized). with and without frame
offsets
Near-optimal offsets
assignment algorithms
with user-defined
performance criteria: e.g.
optimize the worst-case
response times for a
specific subset of tasks,
for instance, the 10
lowest priority frames
Exhibit the situations
leading to the worst-
case: results can be
checked by simulation or
testing
Enable dimensioning
transmission/reception
buffers at the ECU and
communication controller
level
Handle both FIFO and
prioritized waiting queues
at the ECU level
Fast multi-core
© Copyright INRIA / INPL – RTaW implementation: typically,
an exact response time
computation requires less
than 30 seconds for 100
frames on a dual-core
system
Gateway support:
forwarding of
signals/frames from one
network to another
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dedicated to providing services and
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systems designers optimize
hardware and software resource
utilization and verify that
dependability constraints are met
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