Programmer's Reference Manual Intermec Fingerprint® v8.70.0 ...

Chapter —Program Instructions
COMSET ON
Purpose Statement emptying the buffer and turning on background data reception
on the specified communication channel.
Syntax COMSETON
is one of the following communication channels:
1 = "uart1:"
2 = "uart2:"
3 = "uart3:"
4 = "centronics:"
5 = "net1:"
6 = "usb1:"
7 = "uart4:"
8 = "uart5"
Remarks This statement is closely related to COMSET, ON COMSET GOSUB,
COMSTAT, COMSET OFF, COM ERROR ON/OFF, and COMBUF$.
It allows you to open any of the communication channels for background
data reception with an empty buffer, provided the communication parameter
for the channel has already been set up by a COMSET statement.
When the reception has been interrupted by the reception of an end character,
an attention string or the max. number of characters, the buffer can
be emptied and the reception reopened by issuing a new COMSET ON
statement.
Example In this example, the COMSET ON statement on line 30 is used to open
"uart1:" for background reception. After the buffer has been read, it is
emptied and the reception is reopened by a new COMSET ON statement
in the subroutine on line 2020:
1 REM Exit program with #STOP&
10 COMSET1,"#","&","ZYX","=",50
20 ON COMSET 1 GOSUB 2000
30 COMSET 1 ON
40 IF A$ "STOP" THEN GOTO 40
50 COMSET 1 OFF
.....
.....
1000 END
2000 A$= COMBUF$(1)
2010 PRINT A$
2020 COMSET 1 ON
2030 RETURN
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