Using PeakCAN Plugin

The PeakCAN plugin encapsulates the low-level API to work with the PEAK-System CAN adapters.

Creating CAN Bus Devices

At first it is necessary to check that QCanBus provides the desired plugin:

  if (QCanBus::instance()->plugins().contains(QStringLiteral("peakcan"))) {
      // plugin available
  }

Where peakcan is the plugin name.

Next, a connection to a specific interface can be established:

  QCanBusDevice *device = QCanBus::instance()->createDevice(
      QStringLiteral("peakcan"), QStringLiteral("usb0"));
  device->connectDevice();

Where usb0 is the active CAN interface name. The PeakCAN plugin supports eight USB interfaces from usb0 to usb7 and eight PCI interfaces from pci0 to pci7.

Note: Only the USB and PCI adapters are currently supported by this plugin.

The device is now open for writing and reading CAN frames:

  QCanBusFrame frame;
  frame.setFrameId(8);
  QByteArray payload("A36E");
  frame.setPayload(payload);
  device->writeFrame(frame);

The reading can be done using the readFrame() method. The framesReceived() signal is emitted when at least one new frame is available for reading:

  QCanBusFrame frame = device->readFrame();

PeakCAN supports the following configurations that can be controlled through setConfigurationParameter():