The CAN bus baud rate setting method based on AT90CAN128

The Controller Area Network (CAN) protocol is a real-time, serial, broadcast protocol with a very high level of security. The AT90CAN128 CAN controller is fully compatible with the CAN Specification 2.0 Part A and Part B, and high cost performance, but its internal structure is different from independent CAN controllers. In order to explore the AT90CAN128 CAN controller unique communication mechanism, from the CAN module, paper elaborates the setting method of CAN bus communication baud rate with the AT90CAN128 CAN controller, and gives examples of the detailed settings. Finally, according to the baud rate value in the examples, the related communication experiment was designed, and the test results confirmed the correctness of our results.