參數(shù)資料
型號： RX78K4
英文描述： 78K/IV Series Real-Time OS Fundamental | User＇s Manual[01/1997]
中文描述： 78K/IV系列實(shí)時操作系統(tǒng)的基本|用戶手冊[01/1997]
文件頁數(shù)： 47/96頁
文件大?。?/td> 265K
代理商： RX78K4
CHAPTER 4 RX78K/IV SYSTEM CALL LIST
38
4.1.8
wai_tsk (Wait for Wakeup Task)
[Function]
Places a task in the WAIT state for a fixed amount of time.
[Remarks]
Places the task itself in the WAIT state for a fixed amount of time from the RUN state. This WAIT state can
be released issuing the system call “wup_tsk (iwup_tsk)” or “ret_wup” to this task, or when the amount of time
specified by tmout has elapsed. If the value of tmout is 0, immediate return is executed, and E_TMOUT is
returned as the return parameter. If tmout is 0 and the number of wake-up request counts is 1 or more, E_OK
is returned (and the wake-up request count is updated).
When this system call is used, the vector address of the timer to be used must be set. For the timer to be
used, refer to
5.1 Hardware Used
.
[System call ID number]
wai_tsk = 7
[Parameter]
tmout (Timeout)
Time out specification
- 16 bits
[Return parameter]
E_OK
E_TMOUT
Normal termination
Elapsed time
[Assembler format]
[Large/Small model]
MOV
MOVW
CALLT
bnk0_b, #7
bnk0_vp, #tmout
[40H]
:
C register = return parameter
[C format]
ret = wai_tsk (tmout);
unsigned short
tmout;
Wait time = Set interrupt time
′
TMOUT value
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