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8. Extended information
[( Definition format )]
Numeric value
[( Definition range )] 0 to 0xFFFFFFFF
[( Default value )] 0
Define the extended information of a task. This information is passed to the task as argument when it is restarted
by a queued startup request, for example.
[( Eventflag definition )]
This definition is necessary to use Eventflag function.
<< Format >>
// Eventflag Definition
flag[
ID No.
]{
name =
Name
;
wait_queue =
Selecting an event flag waiting queue
;
initial_pattern =
Initial value of the event flag
;
wait_multi =
Multi-wait attribute
;
clear_attribute =
Clear attribute
;
};
:
:
The ID number must be in the range of 1 to 255. The ID number can be omitted.
If omitted, numbers are automatically assigned sequentially beginning with the smallest.
<< Content >>
Define the following for each eventflag ID number.
1. ID Name
[( Definition format )]
Symbol
[( Definition range )] None
[( Default value )] None
Define the name with which an eventflag is specified in a program.
2. Selecting an event flag waiting queue
[( Definition format )]
Symbol
[( Definition range )] TA_TFIFO or TA_TPRI
[( Default value )] TA_TFIFO
Select a method in which tasks wait for the event flag. If TA_TFIFO is selected, tasks are enqueued in order of
FIFO. If TA_TPRI is selected, tasks are enqueued in order of priority beginning with the one that has the highest
priority.
3. Initial value of the event flag
[( Definition format )]
Numeric value
[( Definition range )] 0 to 0xFFFFFFFF
[( Default value )] 0
Specify the initial bit pattern of the event flag.