Using TinyCAN Plugin

The TinyCAN plugin encapsulates the low-level API to work with the MHS Elektronik 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("tinycan"))) {
     // plugin available
 }

Where tinycan is the plugin name.

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

 QCanBusDevice *device = QCanBus::instance()->createDevice(
     QStringLiteral("tinycan"), QStringLiteral("can0.0"));
 device->connectDevice();

Where can0.0 is the active CAN interface name. TinyCAN currently only provides the interface can0.0, which maps to INDEX_CAN_KANAL_A in the TinyCAN 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();

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

TinyCAN supports the following additional functions:

• QCanBusDevice::resetController()