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CANFDNET-400U
High-performance Four-channel CANFD Bus-to-Ethernet Converter User Manual
Address 2
Address 3
Address 4
Data 5
Data 6
Address 7
Address 8
Address 9
Address 10
As shown in Table 4.16, in this mode, it is obvious that the frame information of CAN
messages will not be converted into serial frames. Since the start address in the
configured serial frame is 2, the length is 3 (in the case of extended frames). Therefore,
during conversion, the frame ID2, frame ID1, and frame ID0 in the CAN message are
sequentially converted to the serial frame as the contents of address 2, address 3, and
address 4. The data field of the CAN message will be sequentially converted to the
unfilled part of the serial frame without any modification.
4. Converting CANFD messages to serial frames
Assume that the start address of the configured CANFD identifier in the serial frame
is 2, the length is 3 (in the case of extended frame), the frame ID of the CANFD message
is 0x00123456, and the data is 0x00-0x3F. Table 4.17 lists the CANFD messages and the
results of conversion into serial frames.
Table 4.17 Converting CANFD extended frame messages into serial frames (transparent conversion with
Serial frame
Address 0
Address 1
Address 2
Address 3
Address 4
Data 5
Data 6
Address...
Address 64
Address 65
Address 66
As shown in Table 4.17, in this mode, it is obvious that the frame information of
CANFD messages will not be converted into serial frames. Since the start address in the
0x12
0x34
0x56
0x02
0x03
0x04
0x05
0x06
0x07
flags)
0x00
0x01
0x12
0x34
0x56
0x02
0x03
...
0x3D
0x3E
0x3F
©2021 Guangzhou ZLG Microelectronics Technology Corp.,Ltd.
29
0x56
0x00
0x01
0x02
0x03
Data field
0x04
0x05
0x06
0x07
CANFD message (extended
frame)
Frame
0xBF
information
0x00
0x12
Frame ID
0x34
0x56
0x00
0x01
0x02
0x03
Data field
...
0x3D
0x3E
0x3F
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