Virtual Functional Bus
V2.0.0
R4.0 Rev 1
Kind of port-
interface
Comment Further reading
Client-server The server is provider of operations and
several clients can invoke those operations.
this section and
Section 4.4
Sender-receiver A sender distributes information to one or
several receivers, or one receiver gets
information (events) from several senders
3
. A
mode manager can notify mode switches to
one or several receivers
this section and
Section 4.3
Parameter Interface A parameter interface allows software
components access to either constant data,
fixed data or calibration data. It should be
noted that depending on the type of access
(i.e. fixed, const or standard respectively) that
compatibility rules apply. For example a
parameter interface which uses a fixed
implementation policy will not be allowed to
connect to a port of a Parameter SW
Component if the provider uses a variable data
implementation (i.e. standard). The reason is
plain and simple; The application will use a
#define (pre-compile value optimization) and
so will not take actual values from the
Parameter SW component at runtime.
Chapter 10
Provide element level access (rea
d only or
read/write) to non volatile data as opposed to
NV block access.
Section 4.3
Non volatile
Data Interface
A trigger event allows software components to
react to the occurrence of a reoccurring event
which is not per se time based. For example
triggering based on the crank shaft and cam
shaft position. The occurrence of the event will
ultimately result in the execution of a
Runnable. The purpose of the trigger interface
is to allow for fast response times with regards
to the occurring event; waiting for a time event
to poll for the occurrence is not fast enough.
Section 3.8
Trigger Interface
Mode Switch Interface
The mode switch interface is used to notify a
software component of a mode. The mode
manager provides modes that can be used by
mode users to adjust the behavior according to
modes or synchronize activities to mode
switches.
Section 8
Table 3.1: The kinds of port-interfaces provided by AUTOSAR.
14 of 74 Document ID 056: AUTOSAR_EXP_VFB
- AUTOSAR Confidential -
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In the context of AUTOSAR, sending, receiving and distributing of events is seen as part of the
sender-receiver communication pattern.
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