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Chapter 11 Protocol Decoding RIGOL
MSO7000/DS7000 User Guide 11-33
âš« CRC (Cyclic Redundancy Check): expressed in Hex, displayed in
yellow-green. When errors occur, it is displayed as a red patch.
âš« 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.
âš« R (remote frame): displayed as a tangerine patch.
FlexRay Decoding (Option)
FlexRay is a type of differential serial bus configured with three consecutive
segments (i.g. header, payload, and 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 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
âš« Press Source and rotate the multifunction knob to select the desired
source channel, and then press down the knob to select it. You can also
press Source continuously or enable the touch screen to select it. The
available channels include CH1-CH4 and D0-D15.
Frame ID DLC Data CRC ACK
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