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This function tries to connect to a Serial Port Profile(SPP) on a remote device.
Input:
dev : STRING
The address of the device to connect to.
UUID : STRING
The UUID of the profile to connect to. If empty, the default SPP profile will be used.
Output:
port : SINT
The port number to use with serOpen.
Returns: INT
1
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-
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_BT_OK
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The connection to the port has been established.
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0
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-
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_BT_ERR_NOT_SUPPORTED
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The API is not supported.
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-1
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-
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_BT_ERR_NOT_OPEN
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The adapter is not powered(see btPower).
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-4
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-
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_BT_ERR_NOT_FOUND
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Could not find device.
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-7
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-
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_BT_ERR_NO_RES
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No serial port resources available.
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-12
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-
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_BT_ERR_BUSY
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The adapter is busy.
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-14
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-
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_BT_ERR_CON_FAILED
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Failed to connect to device.
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-15
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-
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_BT_ERR_NOT_AVAIL
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The profile is not currently available.
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-17
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-
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_BT_ERR_TIMEOUT
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Timeout
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Declaration:
FUNCTION btSerialPortProfileConnect : INT;
VAR_INPUT
dev : STRING;
UUID : STRING := "";
port : ACCESS SINT;
END_VAR;
Example:
INCLUDE rtcu.inc
PROGRAM test;
VAR
rc : INT;
port : SINT;
address : STRING;
END_VAR;
btPower();
BEGIN
...
rc := btSerialPortProfileConnect(dev:=address, port:=port);
DebugFmt(message:="btSerialPortProfileConnect "+address+": \1 , port: \2", v1:=rc, v2 := port);
...
END;
END_PROGRAM;
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