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4.Advanced User Guidebook
Addr / Data
Trigger when Address and Data conditions are met at
the same time .
Mode
Holdoff
Auto
Normal
Single
Acquire waveform even no trigger occurred
Acquire waveform when trigger occurred
When trigger occurs, acquire one waveform then stop
3. SPI Trigger
Trigger on the specified data when the timeout condition is meet. When using SPI
trigger, you need to specify the SCL and SDA data sources.
In SPI bus trigger mode, the trigger setting information is displayed on bottom right
of the screen, for example, ，indicates that
trigger type is SPI, CH1 trigger level is 0.00mV, CH2 trigger level is 0.00mV.
SPI Trigger menu list:
MENU
SETTING
INSTRUCTION
Bus Type SPI Set vertical channel bus type as SPI trigger.
Source
CH1
CH2
Set CH1 as SCL or SDA.
Set CH2 as SCL or SDA.
Time Out Time out
Set the minimum time that SCL must be idle, that is a
period of SCL, available range 100ns-10s. Time out
means SCL keeps idle for a specified time before
oscilloscope starts to search for the data(SDA) on
which to trigger. adjust M knob or click to set
time out, press panel button or click
move cursor to choose which digit to be set.
ClockEdg
e&Data
Clock Edge
Set Edge Clock as Rising edge or Falling edge. Means
sample the SDA data on the rising edge or falling edge
of the clock.
Set the number of bits of the serial data character
string. It can be set to any integer between 4-32. adjust
M knob or click to set Data Bits.
Set the number of the data bits, ranges from 0-31,
adjust M knob or click to set Current Bit.
Set the value of the current data bit as H,L or X (H or
Data Bits
Current Bit
Data
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