Let us take an example to understand the arbitration in CAN. Q7: What is voltage Levels in CAN Protocol?Д¬AN Arbitration is nothing but the node trying to take control of the CAN bus. The Can protocol follows the Wired AND logic. Q5: Why CAN Bus uses differential Cable?Д¬AN Protocol used two-wire twisted-pair cables for CAN-Bus architecture to reduce cross-talk and EMI. To ensure that reflection does not cause communication failure, the transmission line must be terminated. To minimize the reflection reference, to reduce noise. Q4: Why Can Is Having 120 Ohms At Each End?

Retransmission of the corrupted message automatically when the bus is idle.

Error Detection and Fault Confinement feature.

Message prioritization feature through identifier selection.

Simple and flexibility in Configuration.

Transmitter sends recessive (1) and any receiver can assert a dominant (0)

Must be dominant (0), but accepted as either dominant or recessive.Дata to be transmitted (length in bytes dictated by DLC field) Must be dominant (0) for base frame format with 11-bit identifiers Must be dominant (0) for data frames and recessive (1) for remote request frames. The frame format is as follows: The bit values are described for CAN-LO signal.ДЄ (unique) identifier which also represents the message priority

Extended frame format: with 29 identifier bits.

Base frame format: with 11 identifier bits.

The data frame is the only frame for actual data transmission. Q2: What is the Standard CAN Frame Formats? It is a message-based protocol, designed originally for multiplex electrical wiring within automobiles to save on copper, but can also be used in many other contexts. A Controller Area Network (CAN bus) is a robust vehicle bus standard designed to allow microcontrollers and devices to communicate with each other in applications without a host computer.

C program for stop and wait protocol