Renesas Emulator System M3T-MR100 Instrukcja Użytkownika Pobierz pdf (Strona 56)

100

101

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• Suspend task (sus_tsk, isus_tsk)

• Resume suspended task (rsm_tsk, irsm_tsk)

These service calls forcibly keep a task suspended for execution or resume execution of a task. If a suspend re-

quest is issued to a task in READY state, the task is placed into SUSPENDED state; if issued to a task in WAIT

ING state, the task is placed into WAITING-SUSPENDED state. Since MR100 allows only one forcible wait re-

quest to be nested, if sus_tsk is issued to a task in a forcible wait state, the error E_QOVR is returned. (See

Figure 4.7).

READY state

rsm_tsk sus_tsk

0 1 1 0

Number of

suspension

request

Task

sus_tsk

RUNNING

state

SUSPENDED

state

WAITING stateWAITING state

WAITING-

SUSPENDED

state

E_QOVR

Figure 4.7 Forcible wait of a task and resume

1 2 ... 51 52 53 54 55 56 57 58 59 60 61 ... 305 306

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