Can Decode (Optional) - UNI-T UPO3000E Series User Manual

D - Source:
Press the D - source key to set any of CH1 ~ CH4 as the USB D- input.
Speed:
Press the speed key to set low speed (1.5Mbps) or full speed (12Mbps).
Trigger Condition:
Press the trigger condition key to set the USB trigger condition. UPO3000E
provides synchronization, reset, pause, restore, packet tail, token packet,
data packet, handshake packet, and error.
When the trigger condition is token packet, set the following:
(1) Token Type: Includes 5 types: Any, OUT, IN, SOF, SETUP.
(2) Endpoint: Adjust the Multipurpose knob to set the endpoint position.
(3) Comparison Condition: Includes 8 types: = , != , < , > , >= , <= , <> and >< .
(4) Address: Adjust the Multipurpose knob to set the address value.
When the trigger condition is handshake packet, set the following:
Type: Select any, ACK, NAK, or STALL.
When the trigger condition is data packet, set the following:
(1) Data Type: Includes 3 types: Any, DATA0, DATA1.
(2) Bytes: Adjust the Multipurpose knob to set the number of bytes.
(3) Offset: Adjust the Multipurpose knob to set the offset value.
(4) Comparison Condition: Includes 8 types: = , != , <, > , >= , <= , <> and >< .
(5) Data Setting: Adjust the Multipurpose knob to set the data value.
Decode Bus:
Please refer to the RS232 Decode Bus.
Trigger Setting:
Please refer to the Trigger Setting in the "Edge Trigger" section for more details.

6.4 CAN Decode (Optional)

CAN (Controller Area Network) is a kind of serial communication protocol,
which allows devices on the network to communicate with each other directly,
and there is no need for the host to control the communication on the network.
It adopts the differential signal transmission and uses the bit stuffing method
for signal encoding. It will insert a complement bit after every 5 identical bits,
and the high bytes data will be sent first. The CAN protocol signal format is
shown in the figure below:
CAN Selection:
Press DECODE type, and select CAN by the Multipurpose knob. You
can also switch the trigger type by consecutively pressing the type key, then
press the Multipurpose knob to confirm.
Signal Type:
Press the signal type key to set the CAN signal type: CAN_L, CAN_H, RX/TX
and Diff.
Input +:
Press the input + key to set any of CH1 ~ CH4 as a signal of CAN decoding
or differential bus.
Input -:
Press the input - key to set any of CH1~CH4 as a signal of differential bus.
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