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Chapter 12 Serial Bus Trigger and Decode (Optional)
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g) Parity error — valid when there is parity check at parity bit, trigger while parity error.
UART serial decode
The measured signal word length is 8bit; parity bit, none; baud rate, 19.2kb/s, hexadecimal; trigger mode as
data bit:55; follow the steps as below:
(1) Tap S1 to open the decode channel, and click S1 again to open the bus configuration menu;
(2) Select the bus type as “UART”, click “Ch1”, “Idle High”, “Parity None”, “8bit”, “19.20kb/s”, display
“hexadecimal”, then close menu;
(3) Open the trigger mode setting menu, click “Data”, enter 55 manually, and press “enter” to confirm;
(4) Adjusting the threshold level according to the amplitude level of signal may make the signal to be stably
triggered. The UART trigger graphic interface is shown in Figure 12-8:
Method 1: Click configuration information to open the decode channel threshold level adjustment
box, and drag the adjustment box upward and downward to adjust the threshold level.
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