I am not in a position to put out the money for a star studded gaming rig. Unconditional Frames. Specs from the Lin Consortium LIN version 2.0 included a number of optional frame types that make the network more flexible. Advanced Frame Types. The master sends a frame header in a scheduled frame slot and the designated slave node fills the frame with data. Sporadic means it wakes up the bus and queries for a short time some device and sleeps again. See Figure 13 as a reference. all the frame types specified by the LIN consortium, i.e. Diagnostic LIN Frame. Like unconditional, event triggered and sporadic frames, the two diagnostic frames are composed of a Frame Header and a Frame Response. Functionality. The default status of the lin bus is sleep. The purpose of the sporadic frame is to blend some dynamic behavior into the deterministic and real-time focused schedule table without losing the determinism in the rest of the schedule table. Additionally, the LIN schedule is included in the description file, which determines the time-triggered communication process of the LIN bus. LIN can be used to communicate with non-critical sub-systems such as: door-lock driver and window motors. Collision is avoided by the master schedule tables. The diagnostic frame is used to find the fault in a LIN network by using the Transport Layer (TP). This is the “normal” type of LIN communication. Figure 13- Unconditional frame definition LIN stands for Local Interconnect Network. It is sent only when the master task knows that it will be received. LIN frame format In addition to the unconditional frames (frames sent whenever scheduled according to the schedule table) provided by LIN 1.3, LIN 2.0 introduces event-triggered frames and sporadic frames. LIN scheduling. There are three different ways of transmitting frames on the bus: unconditional, event triggered, and sporadic frames. In the case of a master request frame (diagnostic request), the master transmits both the frame header and the frame response. Moreover, LIN is implemented to be a one wire interface. Similar to unconditional frames, event-triggered frames begin with the master task transmitting a frame header. A slave response frame is used as a diagnostic response. Figure 3: Example of LIN frame. This process is deterministic – for every frame transmitted on the bus, exactly determined time windows are available (“frame slots”). This collision avoidance is a great thing about LIN Bus because it means conversations can happen … As for the signal definition, to define an unconditional frame the button must be pressed and the following window must be configured. The LIN 2.0 Specification further classifies LIN frames into six types (unconditional, event triggered, sporadic, diagnostic, user-defined, and reserved). 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