Chapter XIX Application Examples
243
turn the Multipurpose b to select Hex and then press the Multipurpose b to confirm Select, or directly set by
clicking the Hex option in the Level3 Menu; click the menu key [Bus Offset] and turn the Multipurpose b to
change the position of the bus in the vertical direction of the display area; click the menu key [Waveforms
Offset] and turn the Multipurpose b to change the position of the digital waveform in the vertical direction of
the display area;
10) Press the
【
Trigger
】
key in the Function Area on the front panel to pop up the trigger setup menu on the
lower screen, click the menu key [Type] to pop up the trigger type selection menu on the right side of the
screen, and click the menu key [Bus] to select the protocol trigger mode;
11) Click the menu key [Trigger On] at the bottom of the screen to pop up the USB protocol trigger type setup
menu on the right side of the screen, and click the menu key [Sync] to set the USB protocol trigger type to
Sync.
The USB bus decoding trigger is displayed in the figure below:
The Frame Start of the USB bus is indicated by a green left square bracket [.
The Sync and CRC Check are displayed in purple boxes.
The PID Type, Address and Endpoint are displayed in yellow boxes.
The Stop is indicated by a red right square bracket ].
Frame
Start
Sync
Frame
End
PID
Type
Address
Endpoint
CRC
Check
Fig. 19.11 USB Trigger and Analysis Example
19.12 1553 Trigger and Analysis Example
If you want to observe the transmission of signals on the 1553 bus, you can follow these steps:
1)
Connect the input channel of the 1553 bus to channel 1 and click the channel control key on the front panel
to open channel 1;
2)
Press the
【
Bus
】
key in the Function Area on the front panel to pop up the bus setup menu on the lower
screen. Click the menu key [Bus] on the menu to pop up the bus type selection menu on the right side of the
screen. Click the menu key [1553], select the 1553 bus type, and switch to the 1553 bus setup menu at the
bottom of the screen;
3)
Click the menu key [Bus Switch] at the bottom of the screen to turn on the bus decoding function;
4)
Click the menu key [Define Inputs] to pop up the 1553 input setup menu on the right side of the screen. Click
the menu key [1553 Input] to pop up the channel selection menu, and select the channel 1.
5)
Click the menu key [Polarity] to select the Normal.
6)
Click the menu key [Thresholds] to pop up the 1553 channel threshold setup menu on the right side of the
Summary of Contents for 4456 Series
Page 10: ...VIII...
Page 55: ...Chapter V Trigger System 45 Fig 5 51 RF Test Signal Example...
Page 69: ...Chapter VII Mathematical Operation 59 Fig 7 10 Advanced Math Example...
Page 71: ...Chapter VIII Display System 61 Fig 8 3 Wfm Palette Menu Fig 8 4 Normal Palette...
Page 72: ...Chapter VIII Display System 62 Fig 8 5 Inverted Palette Fig 8 6 Temperature Palette...
Page 75: ...Chapter VIII Display System 65 Fig 8 12 XY Display Example...
Page 165: ...Chapter XI Protocol Analyzer Option 155 Fig 11 242 1553 Trigger and Analysis Example...
