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系列實時操作系統(tǒng)的基本|用戶手冊[01/1997]
文件頁數(shù)： 34/96頁
文件大?。?/td> 265K
代理商： RX78K4
CHAPTER 3 RX78K/IV BASIC OPERATIONS AND CONTROL BLOCKS
25
3.2
RX78K/IV Control Block
RX78K/IV has control blocks to manage each object. The control blocks are created by the user at time of
configuration, and RX78K/IV uses these blocks for system calls or for management. Therefore, the state of the
control blocks can be always monitored by the user task. The types of RX78K/IV control blocks are as follows:
<1> TCB (Task Control Block)
<2> EVT (Eventflag)
<3> SEM (Semaphore)
<4> MBOX (Mail Box)
<5> MPL (Memory Pool)
<6> HCB (Cyclic Handler Control Block)
3.2.1
Control block memory area
As described above, the control blocks are created by the user at time of configuration with RX78K/IV. Therefore,
all parameters are passed to system calls (related to control blocks) by specifying an address by using a symbol
name.
Fig. 3-4 shows an example of parameters.
Fig. 3-4 Example of Parameters
TCB
Queue area
takid = TSKID_1
TSKID_1
EVT
Queue area
flgid = EVTID_1
EVTID_1
xxxid = Starting adderss of target object
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