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4.Advanced User Guidebook
42
Time out means SCL keeps idle for a specified
time before oscilloscope starts to search for the
data (SDA) on which to trigger. Click or to
set time out, click to move cursor to choose
which digit to be set.
ClockEdg
e&Data
Clock Edge
Set Clock Edge as rising edge or falling edge.
Means sample the SDA data on the rising edge or
falling edge of the clock.
Data Bits
Set the number of bits of the serial data character
string. It can be set to any integer between 4-32.
Click or to set Data Bits.
Current Bit
Set the number of the data bits, ranges from 0-31,
click or to set Current Bit.
Data
Set the value of the current data bit as H, L, or X
(H or L).
All Bits
Set all the data bits to be the specified value in
Data.
Mode
Holdoff
Auto
Acquire waveform even no trigger occurred
Normal
Acquire waveform when trigger occurred
Single
When trigger occurs, acquire one waveform then
stop
4. CAN Trigger (Optional)
CAN (Controller Area Network) is a serial communication protocol of the ISO
international standardization.
By using the CAN bus trigger, you can trigger on Start of Frame, Type of
Frame, Identifier, Data, ID & Data, End of Frame, Missing Ack, or Bit
Stuffing Error. You need to specify the signal source, trigger signal type,
sample point, and signal rate of the CAN signal.
In CAN bus trigger mode, the trigger setting information is displayed on
bottom right of the screen, for example, , indicates
that trigger type is CAN, CH1 trigger level is -126 mV.
CAN Trigger menu list:
Menu
Setting
Instruction
Bus
Type
CAN
Set vertical channel bus type as CAN trigger.
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