该 PID 是 optional，用于通过 RDM 启用 Vision Software Updates，例如使用 DMX Adapter、FTDI USB to Serial DMX interface，或通过 Artnet RDM。该 process 使用 RDM broadcast，流程如下：

1. 向每个 device 发送 DFU Start，并等待包含 timing infos 的 responses。
2. 等待 erase 和 reboot times。
3. 开始使用 DFU Send broadcast data。不允许 devices response。如果只更新一个 device，则不使用 broadcast。
4. 向每个 device 发送 DFU Status，并等待包含 missing packets 的 responses。
5. 使用 DFU Send 重新发送 missing packets。不允许 devices response。
6. 使用 DFU End 结束 DFU process。

Data Type	DS_UNSIGNED_BYTE	PDL Size	Variable（See Protocolversion）
Cmd Class	CC_GET	Unit	UNITS_NONE
Prefix	PREFIX_NONE	Default	0x00
Min	0x00	Max	0xFF
Description	"VISION DFU"

SET Command 0xA005

Controller Incoming Command:

(Port ID)	(Msg. Count)	(Sub-Device)
0x01-0xFF	0x00	0x0000 (Root) or 0x0001-0x0200
(CC)	(PID)		(PDL)
SET_COMMAND	VISION (0xA003)		0x00
(PD)
Set Stream

Set Streams:

Set Stream Protocol Version 1
Index	DataType	Name	Description	Value Definitions
0	uint8_t	Protocol Version	描述 Protocol Version	1: Version 1
1	uint8_t	Command Identifier	Command	-
2	uint8_t[variable]	Data	Data 取决于 command	-

Command	Identifier	DataType	Description	Comment
Start	0x01	uint8 uint8_t[]	Packet Length in 8 Bytes Data (First Packet)	Set Response required
Send	0x02	uint16_t uint8_t[variable]	Packet Index（从 1 开始，不是 0） Data	No response (broadcast)
End	0x04	-	-	Set Response required

Controller Set Response:

(Response Type)	(Msg. Count)	(Sub-Device)
ACK	0x00-0xFF	Copy of Controller SD
(CC)	(PID)		(PDL)
SET_COMMAND_RESPONSE	VISION (0xA003)		Variable（See Protocolversion）
(PD)
Response Stream

Response Stream Protocol Version 1
Index	DataType	Name	Description	Value Definitions
0	uint8_t	Protocol Version	描述 Protocol Version	1: Version 1
1	uint8_t	Command Identifier	Command	-
2	uint8_t[variable]	Data	Data 取决于 command	-

Command	Identifier	DataType	Description	Value Definitions	Comment
Start DFU	0x01	uint8_t uint8_t uint8_t	Status Codes EraseTime in s Wait Time in ms		Response required
Send DFU	0x02	-			No response
End DFU	0x04	-	uint8_t	Status Codes	Response required

Error Codes

0: OK, 1: Not Ready - Try again, 2: Processing CRC, 3: Missing Packets, 4: Flash Error, 5: Not started, 6: CRC Error, 7: Wrong Signature

GET Command 0xA005

Controller Incoming Command:

(Port ID)	(Msg. Count)	(Sub-Device)
0x01-0xFF	0x00	0x0000 (Root) or 0x0001-0x0200
(CC)	(PID)		(PDL)
GET_COMMAND	VISION (0xA003)		0x00
(PD)
Get Stream

Get Streams:

Get Stream Protocol Version 1
Index	DataType	Name	Description	Value Definitions
0	uint8_t	Protocol Version	描述 Protocol Version	1: Version 1
1	uint8_t	Command Identifier	Command	-
2	uint8_t[variable]	Data	Data 取决于 command	-

Command	Identifier	DataType	Description	Comment
Status	0x03	uint16_t	uint16_t: Last Packet Index	Get Response required

Controller Get Response:

(Response Type)	(Msg. Count)	(Sub-Device)
ACK	0x00-0xFF	Copy of Controller SD
(CC)	(PID)		(PDL)
GET_COMMAND_RESPONSE	VISION (0xA003)		Variable（See Protocolversion）
(PD)
Response Stream

Response Stream Protocol Version 1
Index	DataType	Name	Description	Value Definitions
0	uint8_t	Protocol Version	描述 Protocol Version	1: Version 1
1	uint8_t	Command Identifier	Command	-
2	uint8_t[variable]	Data	Data 取决于 command	-

Command	Identifier	DataType	Description	Value Definitions	Comment
DFU Status	0x03	-	uint8_t uint8_t uint16_t[var]	Status (Error Codes) Missing packet Count Missing Packet Indexes	Response required

Status Codes

0: OK, 1: Not Ready - Try again, 2: Processing CRC, 3: Missing Packets, 4: Flash Error, 5: Not started, 6: CRC Error, 7: Wrong Signature