Release notes for embOS V3.52a for Renesas SH2 and Renesas HEW4

  1. Tool chain used for build
  2. Performance
  3. New features
  4. Improvements
  5. Program corrections
  6. Known problems
  7. Release history
  8. Miscellaneous

Tool chain used for build

The following tools have been used:

Compiler: RENESAS shc V9.01.00.001 Assembler: RENESAS asmsh V7.01.01.000 Librarian: RENESAS optlnk V9.02.00.000 Workbench: RENESAS HEW V4.02.00.022


  1. Task switch time
  2. Interrupt latency for Fast interrupt

New features

Version 3.52

  1. NONE, Initial release
    This initial release of embOS SH2 for HEW is based on embOS sources 3.52.



Program corrections

Version 3.52a

  1. OS_Terminate() for XR libraries corrected
    OS_Terminate() in XR libraries might have failed and caused a system crash.
  2. Task stack for none debug builds corrected
    The initial end address of task stacks in the release and stack check libraries was set 1 word behind the defined stack space. Variables which were located behind the task stack might be overwritten.

Known problems / Limitations


Release history

Version Release date Short explanation
V3.52a 21. Sep 2007 Corrected version
V3.52 22. Aug 2007 Initial release, based on embOS V3.52


This document was first released with version 3.52 of the software.
Software released earlier is documented internally.
This information is available at request.

Copyright 2007 SEGGER Microcontroller Systeme GmbH. All rights reserved.
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