Each of the Serial Ports would need a Code to define the Device that is connected to it. There will be more devices that might be added in the future like a Camera Overlay output or a Camera License Plate Recognition and there will be codes chosen to define these too.
The uC will use these codes to assign the different devices it talks to.
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Download Command 0x17 - Tech: Each position
defines the Uart assignment
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Field Name
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Description
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Example [#of Bytes]
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Uart1
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GRPS Mode
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G
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Uart2
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MID connection (FMS/Pumps/Tags/ NRT on uart3)
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M
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Uart3
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UHF Tagging
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U
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Uart4
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GPS
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S
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Uart5
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Printer
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Q
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Uart6
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ATG
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A
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NB: X – Uart not is USED
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Below a sample of the comms from the Web to the M/C
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STX
[1] Hex
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SiteID[3]
Hex
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Packet Type[2] Hex
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Payload length [1] Hex
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Payload
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CRC [1]
Hex
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ETX
[1]Hex
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0x32
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0x04FD00
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0x02
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0xnn
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G|M|U|S|Q|A
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XX
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0x33
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