Octagon 6000 Series, User Manual

Page: 57 / 233

5-8
Serial ports 6000 Series user’s manual
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Get receiver status
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Get transmitter status
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Get ID
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Set ID
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Get incoming message buffer pointer
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Get outgoing message buffer pointer
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Set incoming message buffer pointer
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Set outgoing message buffer pointer
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Set roll call response
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Set state wish response
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Set internal state response
Function 00 – Initialization
On entry: AH = 0FAh = RS-485 function signature
AL = 00h = RS-485 sub-function
DX = 0ffffh
On exit: AL = status = 0 -> ok
= Not 0 -> error
Function 01 – Send message
On entry: AH = 0FAh = RS-485 function signature
AL = 01h = RS-485 sub-function
DX = 0ffffh
ES:BX = Transmit buffer pointer
On exit: AL = status = 0 -> ok
= Not 0 -> error
Function 02 – Receive message
On entry: AH = 0FAh = RS-485 function signature
AL = 02h = RS-485 sub-function
DX = 0ffffh
ES:BX = Receive buffer pointer
On exit: AL = status = 0 -> message available
= Not 0 -> message not collected yet
Function 05 – Get receiver status
On entry: AH = 0FAh = RS-485 function signature
AL = 05h = RS-485 sub-function
DX = 0ffffh
On exit: AX = incoming message status
BX = incoming message count