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17. Trigger system
Logic Analyzer is same as Oscilloscope and need to make trigger to synchronize data. The trigger system
mainly to set trigger sources, trigger mode and trigger position.
We make CH00 as trigger source and trigger mode as falling edge, trigger position in 50%. Trigger system
setting steps as below:
1.
Press "Trig menu" and menu appears.
2.
Press "F1" till trigger mode display as "Edge".
3.
Press "F2" or turn "CH1 Volts/Div" till trigger sources display as "CH00".
4.
Press "F3" till trigger type display as "Falling".
5.
Turn "Trigger adjust" knob or press "SET 50%"till "NEXT T POS" window display as "50%".
Then trigger system setting finished (ref to Fig. 15).
18. Threshold voltage system
Threshold voltage system is to set high/low of the trigger voltage. The system already fixed the setting for
normal logic voltage as CMOS, LVMOS etc. And you can set any trigger voltage using custom setting.
The signal voltage is 3.3V and we set threshold voltage as "LVCMO3.3/1.7V" as below steps:
Press "1 (Threshold)" key and the menu appears.
1.
2.
Press "F1" key till Channel display as "CH00 ~ CH03"
3.
Press "F2" key till threshold display as "LVCMOS3.3/1.7V".
Then the threshold setting is finished (ref to Fig. 16).
Fig. 15
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