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I2C text interface description, as shown in Figure 12-25:
(1) “Ch”: bus channel.
(2) “Time”: intervals between the last read/write operations to current read/write operations
(3) “Addr”: in address bar, “R” means the read operation, and “W” means write operation
(4) “Data”: data sent by one read and write operation is in the data bar.
(5) “Ack”: in Ack bar, “X” means Ack bit lost.
(6) “Trigger”: “Yes” means reach trigger condition.
(7) “Restart”: “Yes” means reach restart condition.
12.6 ARINC429 Bus Trigger and Decode
For correctly decoding ARINC429 bus data and making trigger stable, the bus configuration, trigger mode set
and trigger level need to be adjusted.
⚫
Bus configuration
Tap
or
to open the bus configuration menu, the following needs to be set:
Data Source — Select channel for ARINC 429 signal.
Word format — Select ARINC 429 decode mode.
Bus Display — Set the format for ARINC 429 decode data.
Baud Rate — Set the speed of ARINC 429 signal.
As shown in Figure 12-26:
Figure 12-26 ARINC429 Bus Configuration Menu
