CAN bus (ControllerAreaNetwork) is a serial communication protocol used to transfer data between various devices. It was originally developed by Bosch of Germany and introduced in 1986.The CAN bus protocol is widely used in automotive electronic control systems such as engine control units, brake control units and air conditioning control units. It is also used in other industries such as industrial automation and medical devices.
How to use CAN bus
The following steps are required to use CAN bus:
1. Determine the parameters of CAN bus
Before you can use CAN bus, you have to determine the parameters of CAN bus. These parameters include baud rate, transmission rate, transmission mode and identifier. The baud rate is the number of bits transmitted per second, usually under 1Mbps. The transmission rate is the amount of data transmitted per second, usually under 100Kbps. There are two transmission modes, standard mode and extended mode. Identifiers are used to identify different devices on the CAN bus.
2. Connecting to the CAN bus
Connecting to the CAN bus requires the use of a CAN bus adapter and a connecting cable.The CAN bus adapter is the device that connects the computer to the CAN bus. The connection cable is used to connect the CAN bus adapter to the CAN bus device.
3. Writing a CAN bus application
Writing a CAN bus application requires the use of the CAN bus API.The CAN bus API is an application program interface for accessing the CAN bus. It contains functions to send and receive CAN bus messages.
4. Testing CAN bus applications
Testing a CAN bus application requires the use of a CAN bus analyzer.A CAN bus analyzer is a device that is used to monitor the data transfer on the CAN bus. It helps to detect errors in the CAN bus application.