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3-6. Bus Key Configuration(Option)
The Bus key is used to configure the Serial bus inputs. The Bus
menu also features event tables to track and save your bus data.
The Bus key is used in conjunction with the Bus trigger (page 102)
to decode serial bus signals.
3-6-1. Bus Display
Bus indicator
Trigger
configuration
Data
Start bit
Stop bit
Start Bit/Start
of Frame
The Start bit is shown as an open bracket.
Stop Bit/End
of Frame
The Stop bit is shown as a closed bracket.
Data
Data packets/frames can be shown in Hex or
Binary. The color of the bus data indicates the type
of data or the channel the data is coming from,
depending on the bus type.
UART:
Color of packet = Color of source
channel.
I
2
C:
Color packet = SDA source channel.
SPI:
Color of packet = MOSI or MISO source
channel.
CAN:
Purple = Error frame, Data length control
(DLC), Overload.
Yellow = Identifier.
Cyan = Data.
Orange = CRC.
Red = Bit stuffing error
