SYS/BIOS GA Release Notes

This release note is divided into the following sections:

Introduction, Documentation, What's New, Upgrading And Compatibility Information, Host Support, Dependencies, Device Support, Validation Information, Known Issues, Benchmarks, Versioning, Technical Support And Product Updates,


SYS/BIOS is a GA release of SYS/BIOS 6.40.00.  CCS users must use CCSv6.0.0 or higher.  This release also has support for GCC (for Cortex-M) and IAR (for Cortex-M and MSP430).

Please read the SYS/BIOS User's Guide for help installing and setting up your environment to use SYS/BIOS

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The following documentation is provided with this release. These documents are also available via the CCS Eclipse help table of contents.

License and manifest.
Additional online sources of documentation.

Release notes from previous releases are also available in the release notes archive directory.

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What's New

SYS/BIOS GA Release (this release).

Defects Fixed in SYS/BIOS GA (Fixes since SYS/BIOS 6.37.02):
ID                               Headline
SDOCM00106892    MSP430's TaskSupport_buildTaskStack() IAR asm implementation does not read task function address correctly
SDOCM00106341    Device support documentation for F28377 missing
SDOCM00106340    Timer64 chained mode does not work for periods that require more than 32-bits
SDOCM00106243    Update the data types of timeouts to be UInt32
SDOCM00105758    Cortex-A15 MMU module's setFirstLevelDesc/setFirstLevelDescMeta functions have a bug when attrs.type is TABLE
SDOCM00105683    update "minimizing size" appendix to reflect latest and greatest (add device specific sections as well)
SDOCM00105635    Add m3.Hwi.resetVectorTableAddress and m3.Hwi.vectorTableAddress to xgconf page.
SDOCM00105596    Unnecessary re-links of CCS SYS/BIOS applications
SDOCM00105376    Improper reference to params in setPeriodMicroSecs() in family/arm/m3/Timer.xs
SDOCM00105129    Rework functionality of Task check stacks, hooks, and logging so that a single ISR context on a task stack can be supported.
SDOCM00105096    Update m3 Hwi code to copy vector table only when Hwi_nvic.VTOR != Hwi_resetVectors.
SDOCM00105082    Add warnings to Mailbox_create/construct/post docs - message size and possible memory corruption of receive buffer too small
SDOCM00104987    IAR ARM applications contain two vector tables
SDOCM00104968    hal Hwi_construct() and Timer_construct() call their delegate XXX_create() functions.
SDOCM00104778    update benchloop to use "TimestampProvider_get16()" (or Timestamp_get16()) for MSP430 target
SDOCM00104723    use Hwi_switchAndRun() instead of separate switchTo/From functions, optimize the extra headroom from stack
SDOCM00104630    Add TRex example support for Cortex-A9 and Cortex-A15 (requires updates .xml files and filters from CCS)
SDOCM00104586    Hwi, Task, Swi (and maybe more) need to support construct with STATIC_POLICY
SDOCM00104463    Configuring user hook for FatFS gettime function causes warning in user build
SDOCM00104417    The Clock Module's Timer Proxy should be made configurable
SDOCM00104386    remove need for HeapMin and minimal heap.  consider providing custom atexit()/exit()
SDOCM00104294    Fix Timer example code in SYS/BIOS user's guide to not show two arguments passed to the tick function
SDOCM00104273    add support for single-core A15 on TCI6636K2H
SDOCM00104199    Need to better document system stack reclamation during SYS/BIOS startup
SDOCM00103795    Typo in Section 8.5.3 of SYS/BIOS User Guide
SDOCM00103734    Clock timerId field in ROV is not always correct.  Can show '0' when it should be '2'.
SDOCM00103539    ROV needs to show Mod_constructed tasks and semaphores, etc.
SDOCM00103472    If an M3/M4 core is re-started (without a reset) while in handler mode, Hwi_initStacks() fails to split the stacks
SDOCM00103344    Redesign M3/M4 Hwi module to eliminate dispatch table
SDOCM00103312    SYS/BIOS heap modules need better documentation for alloc() alignment requirements
SDOCM00103110    update SYS/BIOS documenation to say "TI-RTOS Kernel"
SDOCM00103099    Revisit benchmarks to see if footprints can be improved.
SDOCM00102777    A15 Timer's startup function is not called during BIOS startup if this timer is not the default hal/Timer delegate
SDOCM00102776    Need a Power module for
SDOCM00102041    AM3505/AM3517 devices are shown in the supported device list but CCS A8 projects do not build for evmAM3505/AM3517 platforms
SDOCM00101967    all Module__prologue/epilogue.h files should be protected with #ifdef __cplusplus
SDOCM00101934    DMTimer timerSettings config param should allow changing eventId.
SDOCM00101017    814x and 816x show up under ARM9 and M3 in TI Resource explorer
SDOCM00100886    Update cdoc for intFreqs config parameter in timer64 module
SDOCM00100610    Enhance Timer_setNextTick interface to include the number of ticks to be skipped
SDOCM00100244    Modify the "typical" example to exit upon completion, so System_printf() output is flushed to the CCS console
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Upgrading and Compatibility Information

SYS/BIOS software downloads

SYS/BIOS 6.35 and 6.37

SYS/BIOS 6.34 and older
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Host Support

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Device Support

Click here  for the list of supported devices.
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Validation Information

Click here for the list of compilers used to build and validate this release (scroll down to Supported Targets section).

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Known Issues

The following issues are known to affect this release:

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    For a full description of Benchmarks please see the appendices in the SYS/BIOS 6 User's Guide. back to top


All releases have 4 digits ( This includes GA and pre-releases (engineering, alpha/EA, beta, etc.). Pre-releases are denoted with a suffix (e.g. or

This product's version follows a version format,, where M is a single digit Major number, mm is 2 digit minor number, pp is a 2 digit patch number, and b is an unrestricted set of digits used as an incrementing build counter.

To support multiple side-by-side installations of the product, the product version is encoded in the top level directory (e.g. bios_6_30_00_00).

Subsequent releases of patch upgrades will be identified by the patch number, ex. SYS/BIOS with directory bios_6_30_01_15. Typically, these patches only include critical bug fixes.

Please note that version numbers and compatibility keys are NOT the same. For an explanation of compatibility keys, please refer to the 'Upgrade and Compatibility Information' section.

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Technical Support and Product Updates

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Last updated: April 23, 2014 Build Ver: Rev: o15