Owon TAO3000 Dual-Channel Series, Руководство пользователя

Страница: 50 / 141

4.Advanced User Guidebook
44
End Trigger on the end frame of the data frame.
Lost Trigger on Missing Ack.
Error Trigger on Bit Stuffing Error.
Mode
Holdoff
Auto Acquire waveform even no trigger occurred
Normal Acquire waveform when trigger occurred
Single When trigger occurs, acquire one waveform then stop
Bus Decoding (Optional)
1. UART Decoding
To decode UART signal:
(1) Connect the UART signal to the signal input channel of the oscilloscope.
(2) Adjust to the proper time base and voltage division.
(3) In trigger menu, select Bus trigger, and select bus type as UART, set
parameters based on the characteristics of the signal, trigger the signal
correctly and obtain stable display. Refer to " UART Trigger " on page 38.
(4) Click to call up the menu panel. Click the Decode softkey on panel to
switch to the ON state. Select bus type as UART, set parameters based on
the characteristics of the signal. When the parameters are set correctly,
the information carried by the signal will be displayed.
Tip: If there are repetitive menu items in both trigger menu and decoding menu,
you can set anyone of them, the other will be changed synchronously.
Note :

Use the upper knob to adjust the thresholds of bus trigger and bus
decoding.

When decoding, if "Parity" is not set to "None", and the check bit error is
detected, two red error marks will be displayed in the corresponding
position in the waveform.
UART Decoding menu list:
Menu Setting Instruction
Bus Type UART Set bus type of decoding as UART.
Configure
Common
Baud
Select from the Baud list on the left.
Custom
Baud
Click or to set the Baud. The range is 50 to
10,000,000.
Tip : You can select the nearest value in Common Baud,
and then adjust it in this menu.