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 6.40.02):
ID                             Headline
SDOCM00112256   F2837x Boot module needs clock configuration for CPU2
SDOCM00112220   MSP430: remove the one-tick-late limit for triggering an interrupt when timer threshold is set too late
SDOCM00112070   Add Cortex-M4 Timer API to notify BIOS a timer is being used.
SDOCM00108595   Hwi stack size is not configured correctly using IAR tools.
SDOCM00108501   _c_int00 (Entry Point) should be put in its own section for all Cortex-A and Cortex-M GNU targets
SDOCM00108411   Hwi_dispatcher can restore incorrect IER register if Hwi_create() called after init time (ARP32/EVE specific issue)
SDOCM00108287   Number of IRQ Xbar inputs in IntXbar module is incorrect (Affects DRA7XX, TDA2XX & TDA3XX devices)
SDOCM00108254   Re-order the placement of linker contributions in GNU linker template for Cortex-A targets
SDOCM00108230   c2800/initF2837x's initFlash() function needs to flush the pipeline before returning
SDOCM00108193   Update C28 Hwi documentation to include info about the extended PIE vector (128-223) support for F2837x
SDOCM00108148   Update gnu/targets/std.h to use C99 types to define XDC types
SDOCM00108039   Add support for MMU0 present in DSP Sub-systems found on ADAS Low and J6 devices
SDOCM00107973   lm3 and lm4 Timestamp_get64() function do not handle the 32-bit rollover correctly
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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: July 29, 2014 Build Ver: Rev: o39