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4.Advanced User Guidebook
38
Out Mod
Goes True
Trigger when condition turns True from False.
Goes False
Trigger when condition turns False from True.
Is True >
Trigger when the time of true condition is greater
than the set time
Is True =
Trigger when the time of true condition is equal to
the set time
Is True <
Trigger when the time of true condition is lower
than the set time
Mode
Holdoff
Auto
Acquire waveform even no trigger occurred
Normal
Acquire waveform when trigger occurred
Single
When trigger occurs, acquire one waveform then
stop
Holdoff
100 ns - 10 s, click or to set time interval
before another trigger occur, click to move
cursor to choose which digit to be set.
Sensitivity
Set the trigger sensitivity.
Bus Trigger
1. UART Trigger
UART is a serial communication mode used in the data transmission between
PCs or between PC and Terminal. A character is transmitted as a frame of data
which consist of 1bit start bit, 5-8bits data bits, 1bit check bit and 1-2 stop bits.
In UART bus trigger mode, the trigger setting information is displayed on
bottom right of the screen, for example, , indicates that
trigger type is UART, CH1 trigger level is 0.00mV.
Format as shown in the figure below,
UART Trigger
UART Trigger menu list:
Menu
Setting
Instruction
Bus Type
UART
Set vertical channel bus type as UART
trigger.
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