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- CRC (Cyclic Redundancy Check): expressed in Hex, displayed in yellow-green.
When errors occur, it is displayed as a red patch.
- ACK (Acknowledgement): when effective, displayed as a light yellow-green
patch; when errors (ACK is detected to be 1) occur, displayed as a red patch.
Frame ID
DLC ACK
Data CRC
- R (remote frame): displayed as a tangerine patch.
- Stuff (Bit filling error): displayed as a red patch.
15.7 FlexRay Decoding (Option)
FlexRay is a type of differential serial bus configured with three consecutive segments
(i.g. packet header, payload, and packet trailer). The oscilloscope samples the FlexRay
signal at the specified sample position and judges each data point as logic "1" or
logic "0" according to the preset threshold level. The FlexRay decoding is required to
specify the signal type and baud rate.
In the decode setting menu, press Decode1 > Bus Type, then rotate the
multifunction knob to select "FlexRay". Press down the knob to select it. You can
also press
Bus Type continuously or enable the touch screen to select it.
1. Enable or Disable the Bus
Press Bus Status continuously to enable or disable the decoding function.
2. Quickly Apply FlexRay Trigger Settings to FlexRay Decoding
Press Copy Trig to copy the current FlexRay trigger settings and apply them to
FlexRay decoding function (set the corresponding FlexRay decoding parameters
automatically). For analog channels, the threshold level settings will also be copied.
3. Set the Source and the Threshold
- Press Source, rotate the multifunction knob to select the desired source
channel, and then press down the knob it. You can also press
Source
Protocol Decoding
266
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