Can Bus Terminating Resistor; Function Details; Save Data And Real-Time Save Function - Ebyte ECAN-U01 User Manual

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Chengdu Ebyte Electronic Technology Co.,Ltd.

ECAN-U01 User Manual

6.3. CAN bus terminating resistor

In order to enhance the reliability of CAN communication and eliminate the reflection interference of the CAN bus

terminal signal, the two farthest end points of the CAN bus network are usually added with a terminal matching resistor,

and the value of the terminal matching resistor is determined by the characteristic impedance of the transmission cable.

For example, the characteristic impedance of the twisted pair is 120Ω , then the two endpoints on the bus should also

integrate 120Ω termination resistors.

Note: ECAN-U01 has integrated 120Ω terminal resistance, you can choose whether to connect the resistance to the bus

through the DIP switch, the DIP switch is next to the 6pin terminal, R1 , R2 correspond to the terminal resistance of

CAN1 , CAN2 , dial to ON position to enable the resistor.

The user can save all the data in the current send / receive list to the local. The save format is shown in the following

table:

file type

file format

editor

Text file

.txt

notepad

The text file is convenient for data preservation, and can be formatted and imported into excel for later analysis.

Click " Real-time save " on the toolbar , set the text type and file name of the real-time save, and then start the data

real-time save function (ie, set the save node A ), click again (ie, set the save node B ), the system will stop saving, All

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