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Diffstat (limited to 'src/serialbus/doc/src/socketcan.qdoc')
| -rw-r--r-- | src/serialbus/doc/src/socketcan.qdoc | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/src/serialbus/doc/src/socketcan.qdoc b/src/serialbus/doc/src/socketcan.qdoc index 919955d..f5aec83 100644 --- a/src/serialbus/doc/src/socketcan.qdoc +++ b/src/serialbus/doc/src/socketcan.qdoc @@ -47,6 +47,8 @@ This section assumes, that the device driver is already loaded (most likely automatically when connecting the CAN hardware). + \section3 Default settings + To set the device can0 to a bitrate of 250 kBit/s: \code sudo ip link set up can0 type can bitrate 250000 @@ -56,6 +58,13 @@ the following command can be used: \code sudo ip link set up can0 type can bitrate 250000 restart-ms 100 + + \section3 CAN FD settings + + To set the device can0 to an arbitration bitrate of 500 kBit/s and a data + bitrate of 4 MBit/s (for frames with bitrate switch flag): + \code + sudo ip link set can0 up type can bitrate 500000 dbitrate 4000000 fd on \endcode \section2 Setting up a virtual CAN bus @@ -73,10 +82,10 @@ the \l{https://github.com/linux-can/can-utils}{can-utils} package: \code - # Display received CAN messages - candump vcan0 + # Display received CAN messages with absolute timestamps and flags + candump -ta -x vcan0 - # Send a CAN message + # Send a CAN FD message with flags BRS and EFI set cansend vcan0 123##3112233445566778899aabbccddeeff # Generate random CAN messages @@ -163,6 +172,11 @@ \li This configuration option determines whether CANFD frames may be sent or received. By default, this option is disabled. It controls the CAN_RAW_FD_FRAMES option of the CAN socket. + \row + \li QCanBusDevice::DataBitRateKey + \li This configuration is not supported by the socketcan plugin. However + it is possible to set the data rate when configuring the CAN network interface + using the \c {ip link} command. \endtable For example: |