| .. _can-sample: |
| |
| Controller Area Network |
| ####################### |
| |
| Overview |
| ******** |
| |
| This sample demonstrates how to use the Controller Area Network (CAN) API. |
| Messages with standard and extended identifiers are sent over the bus, triggered |
| by a button event. |
| Messages are received using message queues and ISRs. |
| Reception is indicated by blink LEDs and output to the console. |
| |
| Building and Running |
| ******************** |
| |
| In loopback mode, the board receives its own messages. This could be used for |
| standalone testing. |
| |
| The sample can be built and executed on boards supporting CAN. |
| The output ports and pins of the LEDs can be configured by Kconfig. |
| |
| Sample output |
| ============= |
| |
| .. code-block:: console |
| |
| Finished init. waiting for Interrupts |
| TX thread is running. |
| filter id: 1 |
| Button pressed! Send message 1 |
| Button pressed 1 times |
| Button pressed! Send message 0 |
| Button pressed 2 times |
| String sent over CAN |
| Button pressed! Send message 1 |
| Button pressed 3 times |
| Button pressed! Send message 0 |
| Button pressed 4 times |
| String sent over CAN |
| |
| .. note:: The values shown above might differ. |
