MICROCONTROLLER WITH CAN BUS MODULE AND AUTO SPEED DETECT

摘要

CLAIMS What is claimed is: 1. A method for initializing a CAN (Controller Area Network) module in a microcontroller, comprising: measuring periods between a plurality of falling or rising sections of a CAN signal; Classifying the periods; Obtaining difference values between adjacent periods of the classified periods; Classifying the difference values; Selecting a first difference value from the classified difference values, and obtaining a first frequency from the first difference value; Initializing the CAN module using the selected frequency; Receiving a CAN signal frame; Determining whether an error has occurred; If an error occurs, the next frequency may be selected and a step of repeating the initialization until a valid CAN frequency is obtained may be provided.;