Chapter 13 Serial Bus Trigger and Decode (Optional)
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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
Figure 13-29 ARINC429 Text Interface
ARINC429 text interface description, as shown in Figure 13-29:
(1) “Ch”: bus channel.
(2) “Time”: intervals between the last read/write operations to current read/write operations
(3) “LABLE”: label, information identifier, displayed in octal.
(4) “SDI”: source/target identifier, displayed in binary (displays XX if not identified separately).
(5) “Data”: content of the transmitted information, displayed in the selected numeration system.
(6) “SSM”: symbol/status matrix, displayed in binary (displays XX if not identified separately).
(7) “Error”: displays the frame error type (parity error Par, frame error Frm).
(8) “Trigger”: “Yes” means reach trigger condition.
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