Setup/Hold Trigger - UNI-T UPO3000E Series User Manual

Condition:
Press the condition key to select: >, <, < >.
(1) >: Triggers when the code duration is greater than the set time.
(2) <: Triggers when the code duration is less than the set time.
(3) < >: Triggers when the code duration is less than the set upper time limit
and greater than the set lower time limit.
Time Setting:
Press the time setting key to choose: normal, upper time limit, and lower
time limit.
(1) Normal: When the trigger condition is " > " or " < " , this key can only be
normal.
(2) Upper time limit: User can select this option when the trigger condition
is "< >".
(3) Lower time limit: User can select this option when the trigger condition
is "< >".
Setting:
Press the PgDn key and adjust the Multipurpose knob (shuttle knob or
numeric keypad) to set.
Trigger Setting:
Please refer to the Trigger Setting in the "Edge Trigger" section for more
details.

5.11 Setup/Hold Trigger

In setup/hold trigger, you need to set up the data signal line and clock signal
line. The setup time begins when the data signal crosses the trigger level
and ends when the specified clock edge arrives. The hold time begins when
the specified clock edge arrives and ends when the data signal crosses the
trigger level again (as shown below). The oscilloscope will trigger when the
setup time or the hold time is less than the preset time.
27
Press TRIG MENU type, and select setup/hold by the Multipurpose
knob. You can also switch the trigger type by consecutively pressing the
type key, then press the Multipurpose knob to confirm.
At this time, the trigger setting information
the upper right corner of the screen, the trigger type is setup/hold, the trigger
source is CH1, and the trigger level is 0.00V.
Setup/Hold Trigger Menu
Data Source:
Press the data source key to select CH1, CH2, CH3, or CH4.
Note: Only selecting the channel with connected signals as a trigger source
can obtain a steady trigger.
Code:
Press the code key to select H or L.
(1)H: Set the valid code of the data signal to high level.
(2)L: Set the valid code of the data signal to low level.
Clock Source:
Press the clock source key to select CH1, CH2, CH3, or CH4
Note: Only selecting the channel with connected signals as a trigger source
can obtain a steady trigger.
is displayed at
。