Programming instructions

Intermec Fingerprint v7.61 – Programmer’s Reference Manual Ed. 7 175
Chapter 2 Program Instructions
ON COMSET GOSUB
Field of Application Statement for branching to a subroutine, when the background reception
of data on the specifi ed communication channel is interrupted.
Syntax ON
↔
COMSET<nexp
1
>GOSUB<nexp
2
>|<line label>
<nexp1> is one of the following communication channels:
0 = "console:"
1 = "uart1:"
2 = "uart2:"
3 = "uart3:"
4 = "centronics:"
6 = "usb1:"
<nexp
2
>/<line label> is number or label of the program line to be branched to.
Remarks
This statement is closely related to COMSET, COMSTAT, COMSET ON,
COMSET OFF, COM ERROR ON/OFF, and COMBUF$. It is used to branch
to a subroutine when one of the following conditions occur:
- End character is received.
- Attention string received.
- Max. number of characters received.
These three parameters are set for the specifi ed communication channel
by a COMSET statement.
Examples In this example, the program branches to a subroutine for reading the buffer
of the communication channel:
1 REM Exit program with #STOP&
10 COMSET1,"#","&","ZYX","=",50
20 ON COMSET 1 GOSUB 2000
30 COMSET 1 ON
40 IF A$ <> "STOP" THEN GOTO 40
50 COMSET 1 OFF
.....
.....
1000 END
2000 A$= COMBUF$(1)
2010 PRINT A$
2020 COMSET 1 ON
2030 RETURN