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

COMSET
Intermec Fingerprint v8.70.0/v10.0.0 Programmer´s Reference Manual
Chapter —Program Instructions
Purpose Statement setting the parameters for background reception of data to the
buffer of a specified communication channel (see COMBUF$).
Syntax COMSET,,,,,
is one of the following communication channels:
1 = "uart1:"
2 = "uart2:"
3 = "uart3:"
4 = "centronics:"
5 = "net1:"
6 = "usb1:"
7 = "uart4:"
8 = "uart5"
specifies the start of the message string (max. 12 char).
specifies the end of the message string (max. 12 char).
specifies characters to be ignored (max. 42 char).
specifies the attention string (max. 12 char).
specifies the max. number of characters to be received. Enter a
value ≥1. (If = 0, the first character will be lost.)
Remarks Data can be received by a buffer on each of the communication channels
without interfering with the running of the current program. At an appropriate
moment, the program can fetch the data in the buffer and use them
according to your instructions. Such background reception has priority
over any ON KEY GOSUB statement.
Related instructions are COMSTAT, ON COMSET GOSUB, COMSET
ON, COMSET OFF, COM ERROR ON/OFF, and COMBUF$.
The communication channels are explained in connection with the DEVI-
CES statement.
The start and end strings are character sequences which tells the printer
when to start or stop receiving data. Max. 12 characters, may be "".
It is possible to make the printer ignore certain characters. Such characters
are specified in a string, where the order of the individual characters does
not matter. Max. 42 characters, may be "".
The attention string interrupts reception. Max. 12 characters, may be "".
The length of the afore-mentioned COMSET strings are checked before
they are copied into the internal structure. If any of these strings are too
long, Error 26, “Parameter too large” will occur.
When the printer has received the specified maximum number of characters,
without previously having encountered any end string or attention
string, the transmission will be interrupted. The maximum number of
characters also decides how much of the memory will be allocated to the
buffer.