6. CAN
6.1. Overview
The can_demo provides the following features:
loopback test for all SoC supported CAN controllers, focusing on the CAN and CAN-FD test
loopback test for the board supported CAN controllers using interrupt mode
Dual-board Echo test
Send out multiple messages for the CAN bus connection check
CAN Error Detection
CAN Filter
6.2. Board Setting
No special settings are required
6.3. Running the example
When the example runs successfully, the board shows the following menu:
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* *
* CAN Example Menu *
* *
* 0 - Run loopback test for all supported CAN controllers (CAN and CANFD) *
* 1 - Run loopback test for board supported CAN controller (interrupt mode) *
* 2 - Echo test between two boards:initiator *
* 3 - Echo test between two boards:responder *
* 4 - Send mulitple messages for transmission check *
* 5 - CAN error test (Need to remove current node from CAN BUS for this test) *
* 6 - CAN filter test *
* 7 - Send multiple CANFD messages for transmission check *
* 8 - CAN error test with re-transmission disabled *
* 9 - CAN timestamp feature demo *
* *
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6.3.1. Note
For option 0 and option 1, users can start the test by typing the option directly
For option 2 and 3, users must connect two boards and run this demo, start the responder first, then start the initiator.
For option 4, users must ensure that the board is attached to a valid CAN bus. If the board is connected to a CAN monitor, users can see multiple CAN messages will be sent out after this option is chosen.
For option 7, users must ensure that the board is attached to a valid CAN bus and the bus now supports 5Mbits/s CANFD baudrate. If the board is connected
to a CANFD monitor, users will see multiple CANFD messages are sent out after this option is chosen.