UNI-T UPO2102, Руководство пользователя

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User’s Manual MSO/UPO2000 Seri es
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that chip selection level change invalid jump to valid.
b. Idle time includes idle and idle & data. Idle trigger is generated at start of the new data after a certain
idle time.
(2) Data
When trigger condition selects “chip selection & data” and “idle & data”, it can set the data parameter,
such as bit width, frame length, MOSI data.
Note
：
The maximum data length of a frame is 128 bits.
a. Bit Width
Set the bit width of each data unit signal in SPI protocol signal, the range can set to 4
～
32 bits.
b. Frame Length
Set the length of data unit, the range can set to 1
～
32.
c. MOSI Data
Set MOSI data which is relate to frame length and the range can set to 0
～
FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF.
(3) Idle Time
The idle time counter counts when the SCK is unchanged, and judges whether the count value exceeds
the preset value at the SCK valid edge, if it exceeds, it will be generated at the valid edge. The counter
will be cleared when each clock edge is valid. The range can set to 100ns
～
1s.
(4) Decoding Setting
Quickly enter the entrance of SPI protocol decoding, refer to reference protocol decoding
“SPI Decoding” .
7.17 CAN Trigger
CAN decoding trigger can set trigger condition, trigger coupling, trigger mode and trigger setting.
(1)
Trigger Condition
The CAN trigger condition can set start frame, data frame, remote frame, error frame, overload frame,
identifier, data, ID and data, end of frame, loss confirmed and bit stuff error.
a.
Start Frame: The oscilloscope will generate waveform on start frame.
b. Data Frame
：
The oscilloscope will be generate on data frame match with CAN signal.
c. Remote Frame
：
It will be generated on remote frame.
d. Error Frame
：
The oscilloscope will be generated on error frame of CAN signal.
e. Overload Frame
：
The oscilloscope will be generated on overload frame of CAN signal.
f. Identifier
：
The oscilloscope will be generated on data frame that matches the specified ID.
g. Data
：
The oscilloscope will be generated on data frame that matches the specified ID. //
（
data
frame and remote frame have ID, data frame has data, remote frame has no data.
）
h. ID and Data
：
The oscilloscope will be generated on data frame that matches the specified ID.
i. End of Frame
：
It will be generated on the end of frame of CAN signal.