DISCONTINUED SOFTWARE NOTICE - This software / tool has been discontinued.
Software support will continue in most cases. Please contact Renesas support with any questions.

This product is a real-time operating system (real-time OS) that is an implementation of the μITRON4.0 specification. μITRON is the predominant real-time OS for embedded systems in Japan. Its low resource requirements, outstanding real-time performance, and broad range of service calls make it very suitable for embedded systems requiring true real-time and multi-tasking capabilities.

In addition, its high degree of compatibility with the compiler package from Renesas Electronics and multitasking debugging on the IDE will help you greatly reduce development times and get your products to market more quickly.

Features

  • Conformance with the µITRON4.0 Specification
    The design conforms with the µITRON4.0 Specification, which prescribes a representative OS architecture for embedded control.
  • Real-time performance
    Task switching time is 1.1μsec, which is even faster than the previous product. Time it takes a target task to be activated after a wup_tsk is issued. (SH7750@200MHz, at the time of cache hit) [Learn More]
  • Superb functionality
    Supports more than 100 service calls, such as the dynamic task generation system call.They support various applications.[Learn More]
  • Configurator
    The configurator is equipped which makes the setup of OS construction parameters easier.[Learn More]
  • Supports the multi-task functionality in High-performance Embedded Workshop
    The Debugging Extension is an optional software which supports the following functions:[Learn More]:
    • Displaying the states of OS control objects such as tasks, semaphores, etc.
    • Issues the service calls for task activation and event flag setting etc.
    • Graphically-displayed service call history
  • Cooperation with 3rd parties
    We provide various solutions to deliver great environments for debugger/application software development, distribution of middleware, customization, and hardware platform etc. in conjunction with our partner vendors.
  • Target CPU: SuperH RISC engine Family SH-4、SH-4A (MMU (Memory Management Unit) is not supported.)
  • Supported compiler: C/C++ Compiler Package for SuperH Family
  • Learn More

Release Information

Latest Ver.: V.2.03 Release 00
Released: Nov 01, 2011
Details of upgrade (See Tool News)
Operating Environment
Agreement Details

Documentation & Downloads

Title Other Languages Type Format File Size Date
User Guides & Manuals
HI7000/4 Series Supplementary Information (Real-time OS for SuperH Family) 日本語 Manual PDF 199 KB
HI7000/4 HI7700/4 HI7750/4 HI7200/MP Large Memory Pool (Real-time OS for SuperH Family) 日本語 Manual PDF 113 KB
HI7000/4 HI7700/4 HI7750/4 User's Manual (Real-time OS for SuperH Family) 日本語 Manual PDF 2.82 MB
HI7750/4 RTOS Configuration Guide Manual PDF 550 KB
Application Notes & White Papers
High-performance Embedded Workshop Application Note: Real-time OS aware debugging 日本語 Application Note PDF 750 KB
HI Series RTOS Application Note Application Note PDF 3.03 MB
Downloads
Realtime OS for SuperH Family HI7750/4 V.2.03 Release 00 (No Source Code attached) Upgrade 日本語 Upgrade - OS EXE 19.33 MB
Realtime OS for SuperH Family HI7750/4 V.2.03 Release 00 (Source Code attached) Upgrade 日本語 Upgrade - OS EXE 21.72 MB
Realtime OS for SuperH Family HI7750/4 V.2.02 Release 06 (Source Code attached) Upgrade 日本語 Upgrade - OS EXE 18.28 MB
Realtime OS for SuperH Family HI7750/4 V.2.02 Release 06 (No Source Code attached) Upgrade 日本語 Upgrade - OS EXE 15.93 MB
Realtime OS for SuperH Family HI7750/4 V.2.02 Release 05 (Source Code attached) Upgrade 日本語 Upgrade - OS EXE 18.08 MB
Realtime OS for SuperH Family HI7750/4 V.2.02 Release 05 (No Source Code attached) Upgrade 日本語 Upgrade - OS EXE 15.72 MB
Realtime OS for SuperH Family HI7750/4 V.2.02 Release 04 (No Source Code attached) Upgrade 日本語 Upgrade - OS EXE 15.71 MB
Realtime OS for SuperH Family HI7750/4 V.2.02 Release 04 (Source Code attached) Upgrade 日本語 Upgrade - OS EXE 18.07 MB
Realtime OS for SuperH Family HI7750/4 V.2.02 Release 03 (No Source Code attached) Upgrade 日本語 Upgrade - OS EXE 15.65 MB
Realtime OS for SuperH Family HI7750/4 V.2.02 Release 03 (Source Code attached) Upgrade 日本語 Upgrade - OS EXE 18.00 MB
Realtime OS for SuperH Family HI7750/4 V.2.02 Release 02 (Source Code attached) Upgrade 日本語 Upgrade - OS EXE 19.61 MB
Realtime OS for SuperH Family HI7750/4 V.2.02 Release 02 (No Source Code attached) Upgrade 日本語 Upgrade - OS EXE 16.99 MB
Real-time OS Debugger Debugging Extension V.1.08 Release 00 Upgrade 日本語 Upgrade - Debugger ZIP 6.76 MB
Realtime OS for SuperH Family HI7750/4 V.2.02 Release 00 (Source Code attached) Upgrade 日本語 Upgrade - OS EXE 12.92 MB
Realtime OS for SuperH Family HI7750/4 V.2.02 Release 00 (No source code attached) Upgrade 日本語 Upgrade - OS EXE 10.87 MB
Realtime OS for SuperH Family HI7750/4 V1.1.00 (No source code attached) Upgrade 日本語 Upgrade - OS EXE 9.24 MB
Realtime OS for SuperH Family HI7750/4 V1.1.00 (Source Code attached) Upgrade 日本語 Upgrade - OS EXE 10.13 MB
Tool News
The Real-Time OSes --HI7750/4 and HI7700/4-- for the SuperH MCU Family Revised 日本語 Tool News - Release PDF 233 KB
Notes on Using the Real-Time OSes --HI7750/4 and HI7700/4-- for the SuperH MCU Family 日本語 Tool News - Note PDF 197 KB
A Correction to the User's Manual of the HI7000/4, HI7700/4, and HI7750/4 Real-Time OSes 日本語 Tool News - Note PDF 193 KB
The Real-Time OS HI7750/4 Revised to V.2.02 Release 00 日本語 Tool News - Release PDF 198 KB
The Real-Time OS HI7750/4 Revised to V.2.01 Release 00 (with Additional Charge) 日本語 Tool News - Release PDF 200 KB
Conceivable Questions and Their Answers Relating to the Changes Made to the Contract Terms of Renesas-Made Real-Time OS Products 日本語 Tool News - Notification PDF 199 KB
Notification of the Changes Made to the Contract Terms, Products' Type Names, and Prices of Renesas-Made Real-Time OS Products 日本語 Tool News - Notification PDF 206 KB
Other
HI7000/4, HI7700/4, HI7750/4 Correction of Manual regarding stack size 日本語 Technical Update PDF 52 KB
HI7750/4 Updates 日本語 Technical Update PDF 18 KB

Supported CPU Cores

SH-4, SH-4A
*MMU (Memory Management Unit) is not supported.

Functions

The HI7750/4 kernel consists of the following modules. Each module is provided by functions (service calls) .

  • Scheduler
    Manages execution sequence of multiple tasks based on their priority levels.
  • Task management
    Manages task status such as RUNNING, READY, WAITING or SUSPENDED.
  • Task-dependent synchronization
    Changes task status from other task, and synchronizes tasks.
  • Interrupt processing
    Returns from an interrupt handler.
  • Time management
    Sets system timer used by HI7750/4 kernel and starts user-defined alarm handler, cyclic handler and overrun handler.
  • System State Management
    Reports information such as version number of HI7750/4 kernel.
  • Synchronization/communication
    Carries out synchronization and communication between tasks. The following function modules are available:
    • Event flag
      Tasks are synchronized by the status of flags managed by the kernel.
    • Semaphore
      Tasks are synchronized by the semaphore counter value managed by the kernel.
    • Mail box
      Tasks are synchronized by sending or receiving a message.
    • Data queue
      Tasks are synchronized by communicating 4-byte data.
  • Extended Synchronization/Communication
    Carries out synchronization and communication between tasks. The following function modules are available:
    • Message buffer
      Makes use of variable-length data communication to synchronize tasks.
    • Mutex
      Makes use of priority ceiling protocol for avoiding priority inversion to synchronize tasks.
  • Memory pool management
    Dynamically allocates/frees memory area used by tasks. Enables efficient use of memory.
  • Task exception
    Controls execution of task exceptions by, for example, defining or activating a task exception.
  • Cyclic handler function
    Controls the execution of a handler activated periodically.
  • Alarm handler function
    Controls the execution of a handler activated at the specified relative-time.
  • Overrun handler function
    Controls the execution of a handler activated when the specified time has been exceeded.
  • Extended service call function
    Renesas original functions are following:
    • Task event flags
      Makes use of task event flag state to synchronize tasks.
    • Cache support function
      Initialize cache, clear cache, and flush cache etc.

Specifications

Specifications/Functions: ・Supports the follwing functions including uITRON4.0 spec-compliant standard profile.
 ・Service calls for dynamic object creation(cre_???, acre_???) and deletion(del_???)
 ・Mutex (TA_CEIL attribute only)
 ・Message buffer
 ・Variable-length memory pool
 ・Alarm handler
 ・Over handler
・The following are the Renesas-specific functions
 ・Task-attached event flag
 ・Cache support function
Scheduling types: Priority basis type / Event-driven type
Target CPU: SH-4, SH-4A
*MMU is not supported.
Service call number: 152
(Count xxx_yyy plus ixxx_yyy as one)
Maximum object number: 1023 (Only the cycle handler and the alarm handler have 15 each)
A maximum value can be selected with the configurator
Maximum priority number: 255, A maximum value can be selected with the configurator
Application operating mode: All application programs are operated in priviledged mode
Performance 0.45 microseconds (SH7785, 600MHz, cache enabled)
(Time takes for a target task to be executed after the wup_tas is issued.):
Kernel code size: From 7.5K bytes to 46K bytes
Kernel RAM usage per task: Data:64 bytes
Stack: 196 bytes

Components

Provided items Explanation Note
Kernel source program Kernel source program Provided only with mass- production licenses which include source code.
Kernel library ・Kernel library for system building
・Cache support library
Compliant with big/little endian
Standard header files ・ITRON specification common definition files
・Kernel specification definition files
・Other definition files
Header files are provided both in Assembler and C languages
Configurator To configure a construction parameter
Various sample programs ・CPU initialization routine assembler source
・CPU initialization routine C source
・Exception enter/exit processing assembler source
・Section initialization processing C source
・Section information definition file
・Undefined interrupt detailed information acquisition process source
・System down routine source
・Timer driver source
Workspace for construction ・HEW workspace for system building
・Project file for separate linkage
・Project file for whole linkage
Manual HI7000/4 series user's manual

Processing Flow

Image
hi7750-4-flow-e