Remote Processing CAMBASIC - Manual (Page 117)

Comm ands - 84
ON COM$
Tasking Statement
SYNTAX: ON C OM$ n GOS UB line/label
ON C OM$ n G O S U B
PURPOSE: To define a program branch when a task defined by the CON FIG C OM$ statement becom es valid.
REMARK S: After defining all the parameters with CONFIG C OM$ the ON C OM$ activates the task. You can
deactiv ate the tas k by exe cuting the same statem ent but w ithout a line numb er aft er G OSU B.
n = legal serial port number.
See the Multitasking Chapter for more information.
RELATED: C L E AR C O M $, C O M $, C O N F IG C O M $
EXAMPLE: 10 CONFIG COM$ 2,0,8,0,1
20 ON COM$ 1 GOSUB 80
30 'your program goes here
.
80 PRINT COM$(2)
90 RETURN
In this example the program will branch when 8 char acters have been received. The XON and
XOF F protocol functions are disabled via CONF IG COM $ statement. All characters w ill be echoed.
ERROR: < Data negative> – n
< Data out of range> – if n is not a legal serial port number
< Can’t compile> – if line/label does not exist