Rigol MSO8000 Series, User Manual

Page: 280 / 396

RIGOL
Chapter 12 Protocol Decoding
12-46 MSO8000 User Guide
1553B Decoding (Option)
The oscilloscope samples the 1553B signal, and judges each data point to be logic
"1" or logic "0" according to the preset threshold level. 1553B decoding is required to
specify the data channel source and the threshold.
In the decode setting menu, press Decode1
→
Bus Type , then rotate the
multifunction knob to select "1553B". 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 1553B trigger settings to 1553B decoding
Press Copy Trig to copy the 1553B trigger settings and apply them to 1553B
decoding function (set the corresponding I2S decoding parameters
automatically).
3. Set the data channel source and the threshold
➢
Press Data and rotate the multifunction knob to select the desired data
channel source, and then press down the knob to select it. You can also
press Data continuously or enable the touch screen to select it. The
available channels include CH1-CH4.
➢
Press Threshold , then rotate the multifunction knob or use the pop-up
numeric keypad to set the threshold of the source channel. When you
modify the threshold of the channel, a dotted line displaying the current
threshold level is displayed on the screen. The dotted line disappears in
about 2 s after you stop modifying the threshold.
4. Display-related setting
Press Display to enter the display setting menu.
⚫
Set the display format
Press Format , rotate the multifunction knob to select the display
format of the bus data. Then, press down the knob to select it. You can also
press Format continuously or enable the touch screen to select it. The
available display formats of the bus data are "Hex", "Dec", "Bin", and
"ASCII".
⚫
Adjust the vertical position of the bus
Press Position , and then rotate the multifunction knob to adjust the
vertical display position of the bus. You can also rotate Wave Vertical
POSITION to adjust the vertical display position of the bus.
⚫
Set the label display
Press Label to enable or disable the label display of the 1553B decoding
bus. When enabled, the bus label "1553B" will be displayed at the upper-left