canChannel

构造连接到指定设备的 CAN 通道

语法

canch = canChannel(vendor,device,chanindex)

canch = canChannel(vendor,device)

canch = canChannel(___,'ProtocolMode','CAN FD')

说明

canch = canChannel(vendor,device,chanindex) 返回连接到指定供应商提供的设备的 CAN 通道。

对于 Kvaser 和 Vector 产品，device 是字符向量或字符串，它在同一参量中将设备模型和设备索引组合在一起（例如 'VN1610 1' 或 'VN1610 2'）以区分不同设备。您还可以在两个 MathWorks^® 虚拟设备中进行选择，每个设备都有两个虚拟通道。

示例

canch = canChannel(vendor,device) 返回连接到 National Instruments™ 或 PEAK-System 设备的 CAN 通道。

对于 National Instruments，vendor 是字符向量 'NI'，devicenumber 是在“NI 测量变量和自动化通信管理器”中定义的接口编号。

对于 PEAK-System 设备，vendor 是字符向量 'PEAK-System'，devicenumber 是为通道定义的设备编号。

示例

canch = canChannel(___,'ProtocolMode','CAN FD') 返回连接到支持 CAN FD 的设备的通道。默认 ProtocolMode 设置为 'CAN'，表示标准 CAN 支持。为 'CAN' 配置的通道不能传输或接收 CAN FD 报文。

示例

全部折叠

为不同的供应商创建 CAN 通道

为多个供应商创建 CAN 通道。

canch1 = canChannel('Vector','VN1610 1',1);
canch2 = canChannel('Vector','Virtual 1',2);
canch3 = canChannel('Kvaser','USBcan Pro 1',1);
canch4 = canChannel('NI','CAN1');
canch5 = canChannel('PEAK-System','PCAN_USBBUS1');
canch6 = canChannel('SocketCAN','can0');
canch7 = canChannel('MathWorks','Virtual 1',2)

canch7 = 

  Channel with properties:

   Device Information
            DeviceVendor: 'MathWorks'
                  Device: 'Virtual 1'
      DeviceChannelIndex: 2
      DeviceSerialNumber: 0
            ProtocolMode: 'CAN'

   Status Information
                 Running: 0
       MessagesAvailable: 0
        MessagesReceived: 0
     MessagesTransmitted: 0
    InitializationAccess: 1
        InitialTimestamp: [0×0 datetime]
           FilterHistory: 'Standard ID Filter: Allow All | Extended ID Filter: Allow All'

   Channel Information
               BusStatus: 'N/A'
              SilentMode: 0
         TransceiverName: 'N/A'
        TransceiverState: 'N/A'
       ReceiveErrorCount: 0
      TransmitErrorCount: 0
                BusSpeed: 500000
                     SJW: []
                   TSEG1: []
                   TSEG2: []
            NumOfSamples: []

   Other Information
                Database: []
                UserData: []

创建 CAN FD 通道

在 MathWorks 虚拟设备上创建一个 CAN FD 通道。

canch6 = canChannel('MathWorks','Virtual 1',2,'ProtocolMode','CAN FD')

canch6 = 

  Channel with properties:

   Device Information
            DeviceVendor: 'MathWorks'
                  Device: 'Virtual 1'
      DeviceChannelIndex: 2
      DeviceSerialNumber: 0
            ProtocolMode: 'CAN FD'

   Status Information
                 Running: 0
       MessagesAvailable: 0
        MessagesReceived: 0
     MessagesTransmitted: 0
    InitializationAccess: 1
        InitialTimestamp: [0×0 datetime]
           FilterHistory: 'Standard ID Filter: Allow All | Extended ID Filter: Allow All'

   Bit Timing Information
               BusStatus: 'N/A'
              SilentMode: 0
         TransceiverName: 'N/A'
        TransceiverState: 'N/A'
       ReceiveErrorCount: 0
      TransmitErrorCount: 0
     ArbitrationBusSpeed: []
            DataBusSpeed: []

   Other Information
                Database: []
                UserData: []