This product is a C/C++ compiler package for M32R Family MCU. The powerful optimizations offer the ultimate in execution speed and code efficiency, and the utilities increase productivity. Furthermore, the MISRA C Rule Checker can also be purchased separately. It will help you write high-quality C source code.

Release Information

Latest Ver.: V.5.01 Release 01

Released: May 1,2009

Details of upgrade (See Tool News)

Operating Environment

 Life cycle


  • C/C++ Compiler: cc32R
  • Assembler: as32R
  • Linker: lnk32R
  • Librarian: lib32R
  • Load module converter: lmc32R
  • Map generator: map32R
  • C standard libraries: m32RcR.lib etc.
  • C standard libraries' source files
  • Absolute listing utility: abslist (Note1)
  • Stack size calculation utility: stk32R (Note1)
  • MAP viewer: MapViewer
  • Debug information discarding utility: strip32R (Note1)
  • PDF manual
  • Simulator debugger
  • Integrated development environment (IDE) High-performance Embedded Workshop


  1. Utilities, abslist, stk32R and strip32R are unsupported.
  2. The C source merge utility, cmerge is not included in V.4.20 Release 1 and later.

Processing Flow

C/C++ compiler: cc32R
Optimizing ANSI C and ISO C++ compiler with extensions for embedded systems.
Assembler: as32R
Produces object code for the target MCU from assembly language source files.
Simulator debugger: M3T-PD32RSIM
Provides source level debugging capabidtty in targetless system-level.
IDE (Integrated development environment): HEW (High-performance Embedded Workshop)
Provides seamless integration and easy access to all tools for coding, compidtng, dtnking, and debugging. It greatly increases productivity.

Information supporting development tools

Title Description
My Renesas Create a My Renesas account to use our tool download services, receive e-newsletter/update notifications, and take advantage of our other services.
e-learning Information for studying and learning about microcontrollers and microprocessors.
FAQ Frequently asked questions and useful hints for development.
Forum A forum and community site to share technical information, questions and opinions with others who use Renesas MCU's.
Tool News Tool release information and other important information.
Operating Environment Information on system requirements and operating environment for the latest version of tools.
Info on Discontinued Products A list of Renesas software and tools that have been discontinued and are no longer being offered for new projects.