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  • Extended-CAN-frame-structure.png

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	1	+LSS-PRO uses the extended CAN frame format to send and receive LSS command information.
	2	+
	3	+Since LSS commands are character data (1 character 1 byte), they cannot be directly assigned to the CAN Data field (8 bytes). Therefore, it converts the LSS command and assigns the conversion information to the **Identifier **and **Data field** of the extended CAN frame format.
	4	+
	5	+**Extended CAN frame format (29-bit CAN ID)**
	6	+
	7	+Extended CAN 2.0 B has 29-bit identifier which means that there are 2^29 = 536,870,912 unique CAN-IDs. With a longer 29-bit identifier field, Extended CAN frames support a significantly larger address space. accommodating up to or over 500 million unique message identifiers.
	8	+
	9	+Example: 10101010111000111010101011101 (binary 29 bits) i.e., 0x155C755D (hex).
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3		-|(% colspan="2" rowspan="1" %)Data format on USB-Serial|(% colspan="3" rowspan="1" %)Data format on CAN-Bus
	12	+__CAN communication rate is set at 500kbps.__
	13	+
	14	+Assign LSS command information to the field in green in this image~:
	15	+
	16	+[[image:Extended-CAN-frame-structure.png]]
	17	+
	18	+
	19	+|(% colspan="2" rowspan="1" style="text-align:center" %)**Data format on USB-Serial**|(% rowspan="16" style="text-align:center" %) |(% colspan="3" rowspan="1" style="text-align:center" %)**Data format on CAN-Bus**
4	4	|(% colspan="2" rowspan="1" style="width:150px" %) |(% style="width:150px" %)ID[28-20]|(% style="width:300px" %)Reserved|
5	5	|(% style="background-color:yellow; width:150px" %)Header|(% style="background-color:yellow" %)# or *|(% style="background-color:yellow" %)ID[19]|(% style="background-color:yellow" %)Request/Response (0:Request 1:Response)|(% style="background-color:yellow" %)# = 0, * = 1
6	6	|(% colspan="2" rowspan="3" %) |ID[18]|Presence of command parameters|Set to 1 if there are parameters such as D commands, set to 0 if there are parameters such as Query commands, etc.
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12	12	|(% style="background-color:orange" %)Command|(% style="background-color:orange" %)Action Command (ex. RESET, D, etc..)
13	13	Query Command (ex. QID, QD, etc...)
14	14	Configuration Command (ex. CID, etc...)|(% style="background-color:orange" %)DATA0|(% style="background-color:orange" %)Command ID|(% style="background-color:orange" %)See Command ID List.
15		-|(% style="background-color:#17e5e8" %)Value|(% style="background-color:#17e5e8" %)Command Value|(% style="background-color:#17e5e8" %)DATA1|(% style="background-color:#17e5e8" %)Command parameter0|(% style="background-color:#17e5e8" %)
16		-|(% colspan="2" rowspan="3" %) |(% style="background-color:#17e5e8" %)DATA2|(% style="background-color:#17e5e8" %)Command parameter1|(% style="background-color:#17e5e8" %)
17		-|(% style="background-color:#17e5e8" %)DATA3|(% style="background-color:#17e5e8" %)Command parameter2|(% style="background-color:#17e5e8" %)
18		-|(% style="background-color:#17e5e8" %)DATA4|(% style="background-color:#17e5e8" %)Command parameter3|(% style="background-color:#17e5e8" %)
	31	+|(% style="background-color:#8ff7ed" %)Value|(% style="background-color:#8ff7ed" %)Command Value|(% style="background-color:#8ff7ed" %)DATA1|(% style="background-color:#8ff7ed" %)Command parameter0|(% style="background-color:#8ff7ed" %)
	32	+|(% colspan="2" rowspan="3" %) |(% style="background-color:#8ff7ed" %)DATA2|(% style="background-color:#8ff7ed" %)Command parameter1|(% style="background-color:#8ff7ed" %)
	33	+|(% style="background-color:#8ff7ed" %)DATA3|(% style="background-color:#8ff7ed" %)Command parameter2|(% style="background-color:#8ff7ed" %)
	34	+|(% style="background-color:#8ff7ed" %)DATA4|(% style="background-color:#8ff7ed" %)Command parameter3|(% style="background-color:#8ff7ed" %)
19	19	|(% style="background-color:#e817e1" %)Modifier|(% style="background-color:#e817e1" %)Modifier Command (ex. SD, T, etc...)|(% style="background-color:#e817e1" %)DATA5|(% style="background-color:#e817e1" %)Sub-command ID|(% style="background-color:#e817e1" %)See Command ID List.
20		-|(% style="background-color:#3b3bff" %)Modifier Value|(% style="background-color:#3b3bff" %)Modifier Command Value|(% style="background-color:#3b3bff" %)DATA6|(% style="background-color:#3b3bff" %)Sub-command parameter0|(% style="background-color:#3b3bff" %)
21		-|(% colspan="2" rowspan="1" %) |(% style="background-color:#3b3bff" %)DATA7|(% style="background-color:#3b3bff" %)Sub-command parameter1|(% style="background-color:#3b3bff" %)
	36	+|(% style="background-color:#7878fa" %)Modifier Value|(% style="background-color:#7878fa" %)Modifier Command Value|(% style="background-color:#7878fa" %)DATA6|(% style="background-color:#7878fa" %)Sub-command parameter0|(% style="background-color:#7878fa" %)
	37	+|(% colspan="2" rowspan="1" %) |(% style="background-color:#7878fa" %)DATA7|(% style="background-color:#7878fa" %)Sub-command parameter1|(% style="background-color:#7878fa" %)
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Extended-CAN-frame-structure.png

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	1	+xwiki:XWiki.ENantel

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