Main
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Preface
Requirements for MR308 Use
C-compiler package M3T-NC308WA(abbreviated as NC308) for M16C/70,80 M32C/80 series micro-
Document List
Release Note
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Contents
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List of Figures
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List of Tables
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2.1 Objective of MR308 Development
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2.2 Relationship between TRON Specification and MR308
2.3 MR308 Features
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Chapter 3 Introduction to MR308
3.1 Concept of Real-time OS
3.1.1 Why Real-time OS is Necessary
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3.1.2 Operating Principles of Real-time OS
Time
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3.2 Service Call
3.2.1 Service Call Processing
3.2.2 Task Designation in Service call
3.3 Task
3.3.1 Task Status
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3.3.2 Task Priority and Ready Queue
TCB
TCBTCB TCBTCB
3.3.3 Task Priority and Waiting Queue
taskB
taskC
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TCB
the timeout function is used.
3.4 System States
3.4.1 Task Context and Non-task Context
1. Interrupt Handler
2. Cyclic Handler
3. Alarm Handler
3.4.2 Dispatch Enabled/Disabled States
3.4.3 CPU Locked/Unlocked States
3.4.4 Dispatch Disabled and CPU Locked States
3.5 MR308 Kernel Structure
3.5.1 Module Structure
3.5.2 Module Overview
Scheduler
3.5.3 Task Management Function
Activate Task (act_tsk, iact_tsk)
Ter mi na te d
Activate Task (sta_tsk, ista_tsk)
Terminate Invoking Task (ext_tsk)
Terminate Task (ter_tsk)
Reference task priority (get_pri, iget_pri)
Reference task status (simple version) (ref_tst, iref_tst)
Reference task status (ref_tsk, iref_tsk)
3.5.4 Synchronization functions attached to task
Put Task to sleep (slp_tsk,tslp_tsk) Wakeup task (wup_tsk, iwup_tsk)
Wake up r eque st c oun t
0 0 1 0 0
Wakeup request count
0 0 1 2 1
Forcibly resume suspended task (frsm_tsk, ifrsm_tsk)
Release task from waiting (rel_wai, irel_wai)
Delay task (dly_tsk)
3.5.5 Synchronization and Communication Function (Semaphore)
Semaphore
Task
A
Release Semaphore Resource(sig_sem, isig_sem)
Acquire Semaphore Resource(wai_sem, twai_sem)
Acquire Semaphore Resource(pol_sem, ipol_sem)
Reference Semaphore Status (ref_sem, iref_sem)
3.5.6 Synchronization and Communication Function (Eventflag)
Set Eventflag (set_flg, iset_flg)
Clear Eventflag (clr_flg, iclr_flg)
Wait for Eventflag (wai_flg, twai_flg)
Wait for Eventflag (polling)(pol_flg, ipol_flg)
Reference Eventflag Status (ref_flg, iref_flg)
Chapter 3 Introduction to MR308
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TaskF TaskD
TaskB
Send to Data Queue(snd_dtq, tsnd_dtq)
Send to Data Queue (psnd_dtq, ipsnd_dtq)
Forced Send to Data Queue (fsnd_dtq, ifsnd_dtq)
Receive from Data Queue (rcv_dtq, trcv_dtq)
Receive from Data Queue (prcv_dtq,iprcv_dtq)
3.5.8 Synchronization and Communication Function (Mailbox)
Message Message
TaskB TaskA
Message queue Message A Message B Message C
Send to Mailbox (snd_mbx, isnd_mbx)
Receive from Mailbox (rcv_mbx, trcv_mbx)
Receive from Mailbox (polling) (prcv_mbx, iprcv_mbx)
Reference Mailbox Status (ref_mbx, iref_mbx)
3.5.9 Memory pool Management Function
Acquire Fixed-size Memory Block (polling) (pget_mpf, ipget_mpf)
Release Fixed-size Memory Block (rel_mpf, irel_mpf)
Reference Fixed-size Memory Pool Status (ref_mpf, iref_mpf)
Acquire Variable-size Memory Block (pget_mpl)
Release Acquire Variable-size Memory Block (rel_mpl)
Reference Acquire Variable-size Memory Pool Status (ref_mpl, iref_mpl)
3.5.10 Time Management Function
Place a task in a finite time wait state by specifying a timeout value
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3.5.11 Cyclic Handler Function
Start Cyclic Handler Operation (sta_cyc, ista_cyc)
Stop Cyclic Handler Operation (stp_cyc, istp_cyc)
Reference Cyclic Handler Status (ref_cyc, iref_cyc)
3.5.12 Alarm Handler Function
Start Alarm Handler Operation (sta_alm, ista_alm)
Stop alarm Handler Operation (stp_alm, istp_alm)
Reference Alarm Handler Status (ref_alm, iref_alm)
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3.5.14 Interrupt Management Function
Returns from interrupt handler (ret_int)
3.5.15 System Configuration Management Function
References Version Information(ref_ver, iref_ver)
3.5.16 Extended Function (Short Data Queue)
Send to Short Data Queue (vsnd_dtq, vtsnd_dtq)
Send to Short Data Queue (vpsnd_dtq, vipsnd_dtq)
Forced Send to Short Data Queue (vfsnd_dtq, vifsnd_dtq)
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3.5.18 Service calls That Can Be Issued from Task and Handler
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Chapter 4 Applications Development Procedure Overview
4.1 Overview
1. Generating a project
2. Coding the application program
3. Creating a configuration file
4. Executing the configurator
HEW
Figure 4.1 MR308 System Generation Detail Flowchart
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Chapter 4 Applications Development Procedure Overview
Figure 4.2 Program Example
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Chapter 4 Applications Development Procedure Overview
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4.2.2 Configuration File Preparation
Figure 4.3 Configuration File Example
4.2.3 Configurator Execution
4.2.4 System generation
4.2.5 Writing ROM
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Chapter 5 Detailed Applications
Chapter 5 Detailed Applications
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5.1 Program Coding Procedure in C Language
5.1.1 Task Description Procedure
1. Describe the task as a function.
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5.1.2 Writing a Kernel (OS Dependent) Interrupt Handler
5.1.3 Writing Non-kernel (OS-independent ) Interrupt Handler
5.1.4 Writing Cyclic Handler/Alarm Handler
5.2 Program Coding Procedure in Assembly Language
5.2.1 Writing Task
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5.2.2 Writing Kernel(OS-dependent) Interrupt Handler
5.2.3 Writing Non-kernel(OS-independent) Interrupt Handler
5.2.4 Writing Cyclic Handler/Alarm Handler
5.3 The Use of INT Instruction
5.4 The Use of registers of bank
5.5 Regarding Interrupts
5.5.1 Types of Interrupt Handlers
High
Kernel(OS-dependent) interrupt handler
Non-kernel(OS-independent) interrupt handler
For service calls that can be issued from only task context.
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Chapter 5 Detailed Applications
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5.8.1 C Language Startup Program (crt0mr.a30)
Chapter 5 Detailed Applications
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Chapter 5 Detailed Applications
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Chapter 5 Detailed Applications
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Figure 5.14 C Language Startup Program (crt0mr.a30)
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5.9 Memory Allocation
asm_sec.inc
c_sec.inc
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5.10 Using in M16C/70 Series
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6.1 Configuration File Creation Procedure
6.1.1 Configuration File Data Entry Format
Comment Statement
End of statement
Numerical Value
123 123 + 0x23 (23/4 + 3) 100B + 0aH
Symbol
_TASK1 IDLE3
Function Name
main() func()
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6.1.2 Configuration File Definition Items
Maximum value of priority ;
Timeout function
Task Pause
Time tick denominator
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Chapter 6 Using Configurator
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6.1.3 Configuration File Example
The following is the configuration file example.
Chapter 6 Using Configurator
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Chapter 6 Using Configurator
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6.2 Configurator Execution Procedures
6.2.1 Configurator Overview
1. Executing the configurator requires the following input files:
Configuration file (XXXX.cfg)
Default configuration file (default.cfg)
cfg308
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6.2.3 Configurator Start Procedure
Command Options
-v Option
-V Option
-m Option
6.2.4 makefile generate Function
1. Examine the source file's dependency relationship.
2. Write the file dependency relationship to makefile
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6.2.6 Configurator Error Indications and Remedies
Error messages
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Warning messages
Other messages
6.3 Editing makefile
6.4 About an error when you execute make
mr308tbl Warning : You need not specify systime.timeout YES in configuration file
tslp_tsk, twai_flg, trcv_mbx, twai_sem, tsnd_dtq, trcv_dtq, vtsnd_dtq, vtrcv_dtq
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7.1 Processing Procedures for System Calls from Handlers
7.1.1 System Calls from a Handler That Caused an Interrupt during Task Execution
7.1.2 System Calls from a Handler That Caused an Interrupt during System Call Processing
7.1.3 System Calls from a Handler That Caused an Interrupt during Handler Execution
7.2 Stacks
7.2.1 System Stack and User Stack
User Stack
System Stack
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8.1 Overview of Sample Program
task2 operates in order of the following.
Chapter 8 Sample Program Description
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8.2 Program Source Listing
Chapter 8 Sample Program Description
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8.3 Configuration Fil e
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9.1 How to Form Separate ROMs
Programs to be located in the kernel ROM
Programs to be located in the application ROM
How to locate individual programs is given below.
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2005. Renesas Technology Corp. and Renesas Solutions Corp.,
Chapter 5 Detailed Applications - 88 -