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baud rate is 12.5kb/s, and the trigger mode is LABEL, operate as follows:
(1) Tap S1 to open the decode channel, and click S1 again to open the bus configuration menu;
Select bus type “429”, source as “CH1”, decode format as “Label+Data”, display in “hexadecimal”,
baud rate as 12.5kb/s.
(2) Open the trigger setting menu, select the trigger type as bus trigger, S1-ARINC429, the trigger mode
is LABEL, and enter LABEL as “106” on virtual keyboard.
Adjust High trigger threshold level and Low trigger threshold level according to signal amplitude;
and ARINC429 trigger graphic interface is shown in Figure 12-28:
Figure 12-28 ARINC429 Graphic Interface
ARINC429 decode data packet description:
(1) Data packet, a total of 32bits, the data format is 8~1 (label bit, high bit first) +9~10(SD) +11~29 (data
bit, low bit first) +30~31 (symbol status bit) +32 (parity bit)
(2) Label (8bits) - Displayed in octal: yellow
(3) SDI (2bits) - Displayed in binary: blue
(4) Data (19bits) - Displayed in selected numeration system: white, or red if there is parity error
(5) SSM (2bits) - Displayed in binary: green
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