Using PeakCAN Plugin

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

This plugin requires the PCAN device drivers and the pcanbasic library (pcanbasic.dll under Windows).

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"));

Where usb0 is the active CAN interface name. The PeakCAN plugin supports 16 USB interfaces from usb0 to usb15 and 16 PCI interfaces from pci0 to pci15.

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;
QByteArray payload("A36E");

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():

Configuration parameter keyDescription
QCanBusDevice::BitRateKeyDetermines the bit rate of the CAN bus connection. The following bit rates are supported: 5000, 10000, 20000, 33000, 47000, 50000, 83000, 95000, 100000, 125000, 250000, 500000, 800000, 1000000. Note that this configuration parameter can only be adjusted while the QCanBusDevice is not connected.

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