BAP communication layer (automotive) (BCL)

The operating and display protocol( BAP) is used in automotive technology for driver assistance.

The BAP protocol is divided into layers and, with the BAP Communication Layer ( BCL), provides the functions of the linklayer, the network layer and the transport layer.

The layer structure of the operating and display protocol (BAP)

The BCL layer ensures adaptation to the transmission medium and the transmission protocols used, such as those of the LIN bus or the CAN bus. In addition, the BCL layer provides for the segmentation of the data records, which must not exceed a maximum length of 4095 bytes, the preparation of the BAP header, the event-oriented communication and the intermediate storage of the data.