我在总线中使用的是CAN FD+BRS协议,系统中包含了NI-XNET的设备。在运行过程中,其他的所有设备都能够正常工作,但是NI-XNET设备会出现错误帧或者不正确的状态,需要指出的是,该设备使用的是默认的NI-XNET位速率设置。 解决方案 这种现象通常是由不同设备的采样点之间不匹配造成的。
是USB通讯中的一种,CAN FD的BRS协议
BRS位是CAN FD帧格式中的一个位,用于控制数据场和CRC场之间的比特率切换。 当BRS位为1时,表示数据场和CRC场使用不同的比特率。 声明CAN FD消息变量: 在CAPL脚本中,首先需要声明一个CAN FD消息变量。 设置BRS位: 将CAN FD消息变量的BRS属性设置为1。 发送CAN FD消息: 使用output函数发送配置好的CAN FD...
How can I activate the Bit Rate Switch (BRS)? Answer: The BRS bit decides whether the optional higher bit rate in the data phase of a CAN FD frame is used.Both, arbitration and data phase bit rate are configured in the Network Hardware Configuration. If a DBC data...
I have configured Nominal bitrate to 1Mbps & Data bitrate to 5Mbps in MPC5746c Microcontroller. I am able to send & receive CAN-FD frames (non-BRS)
I'm currently working on the TriBoard TC3X9 and I was trying to get the can communication to work between the board and vector's CANoe. The problem is when I try to send an FD frame from CANoe to the Board with BRS enabled, the board doesn't acknowledge the frame and the board ...
TDC实际上就是在发送BRS位为隐性的CANFD报文时(BRS隐性即开启数据域波特率),在发送时延迟一定时间后,在第二采样点采样接收位,以正确采样到发送位对应的接收位。1. 发送延迟测量那么延迟采样的延迟时间是多久呢?实际上,开启TDC后,控制器将自动测量Tx信号线上FDF位到r0位下降沿与Rx信号线上FDF位到r0位边沿的之间...
Solved: According to CAN FD spec,the BRS+ESI+DLC is 6bit。 But their waveform is not 6bit。I find the waveform is strange。 The wave form is as
I have a CAN FD and BRS cluster on my bus, which includes a NI-XNET device. All other devices seem to be working fine, however, I am seeing error frames or incorrect behavior with the default NI-XNET bit rate timing settings. The frames are slow and it causes a data loss. The ...
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