Operating the XtraDrive Using XtraWare
as a value from 0 to 7, where 0 is the highest priority and 7 is the lowest.
<Variable> specifies on which internal variable the interrupt is conditional.
Any XtraDrive variable can be used. <Condition> and <Value> specify the
interrupt condition.
As shown in Figure 54, any of the relational operators can be specified for
<Condition>. <Value> is entered in decimal format.
Figure 54: Programming an INT Command
4.11.7.3. INT_RETURN
Format: INT_RETURN <Label>
This command signals the end of an interrupt service routine. <Label>
specifies the program label to which the program must proceed once the
interrupt service routine has been completed.
Setting <Label> to –1 specifies that the program must simply continue
running from the point at which the interrupt occurred.
If an interrupt service routine of a lower priority interrupt is executed after
a higher priority interrupt service routine, the program will continue from
the position defined by the last INT_RETURN command.
Figure 55: Programming an INT_RETURN Command
XtraWare User Manual 81
To Next Page
Loading...