Bus Trigger - Owon TAO3000 Series User Manual

CH1
CH2
CH3
Input
Mode
CH4
Goes True
Goes False
Is True >
Out Mod
Is True =
Is True <
Auto
Normal
Single
Mode
Holdoff
Holdoff
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,
trigger type is UART, CH1 trigger level is 0.00mV.
Format as shown in the figure below,
4.Advanced User Guidebook
Set CH1 as High Level, Low level, high or low
level, Rise and Fall.
Set CH2 as High Level, Low level, high or low
level, Rise and Fall.
Set CH3 as High Level, Low level, high or low
level, Rise and Fall.
Set CH4 as High Level, Low level, high or low
level, Rise and Fall.
：
Note When input mode of one channel is set as
Rise or Fall, the other channel could not be set as
Rise and Fall at the same time.
Trigger when condition turns True from False.
Trigger when condition turns False from True.
Trigger when the time of true condition is greater
than the set time
Trigger when the time of true condition is equal to
the set time
Trigger when the time of true condition is lower
than the set time
Acquire waveform even no trigger occurred
Acquire waveform when trigger occurred
When trigger occurs, acquire one waveform then
stop
100 ns - 10 s, click
before another trigger occur, click
cursor to choose which digit to be set.
Set the trigger sensitivity.
38
or to set time interval
to move
, indicates that