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UART/RS232 Triggering
This part shows a brief introduction and description for the operation of the UART
trigger.
1. Press Setup key to enter the TRIGGER function menu.
2. Press Type and select Serial.
3. Press Protocol and select UART.
4. Press Trigger Setting softkey to enter UART TRIG SET menu.
5. Press the Source Type softkey to select the source of the trigger (RX or TX).
6. Press the Condition softkey and set up the desired trigger condition:
●
Start — the oscilloscope will be triggered at the position of the start bit.
●
Stop —the oscilloscope will be triggered at the position of stop bits.
●
Data — the oscilloscope will be triggered when a byte is found which is equal
to (not greater or less than) the specified data.
a. Press the Compare Type softkey and choose an equality qualifier (>, < or =).
b. Press the Value softkey to set the data value. Select a Data value is in
range of 0x00 to 0xff.
●
ERROR — if the parity check has been set, and the checked parity bit shows
an error, then the oscilloscope will be triggered.
Figure 49 UART TRIG SET Menu
User Manual 99
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