SYS/BIOS GA Release Notes


SYS/BIOS is a GA of SYS/BIOS 6.50. CCS users must use CCSv7.1.0 or higher.

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


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.

What’s New

SYS/BIOS GA Release (this release).

Defects Fixed in SYS/BIOS GA (Fixes since SYS/BIOS 6.46.04):

JIRA Issue ID Summary
SYSBIOS-347 Add support for IR14XX & IR16XX part numbers
SYSBIOS-338 C28 zero latency interrupt dispatcher does not always preserve repeat block registers
SYSBIOS-337 Fully support “Error_IGNORE” in all BIOS APIs that take EBs
SYSBIOS-336 Cannot use POSIX’s error codes in both TI-RTOS and Freertos
SYSBIOS-335 sched_get_priority_min() and sched_get_priority_max() need policy param
SYSBIOS-331 Fix typo in TI linker cmd files in concertoM3 (in platform tree)
SYSBIOS-330 Remove COFF support for all C6x targets
SYSBIOS-328 MSP432 Timer is missing from cdoc
SYSBIOS-326 Enhance documentation of
SYSBIOS-323 Task ROV view tries to fetch empty array on constructed objects
SYSBIOS-321 All Posix timed wait function timeouts should be based on CLOCK_REALTIME
SYSBIOS-316 Honor custom Hwi_resetVectors placement in all CC13/26xx ROM applications.
SYSBIOS-314 MSP430 Errata causes hang in Boot code
SYSBIOS-313 timer64 TimerRegs structure is missing some fields
SYSBIOS-312 SYS/BIOS UG should state how to enable events in Mailbox
SYSBIOS-311 ROV Task Detailed view in IAR IDE shows ??_pthread_runStub for pthreads
SYSBIOS-310 GateHwi ROV view broken in TI-RTOS CC13xx/CC26xx examples
SYSBIOS-308 Non-constructed objects should be handled gracefully in ROV
SYSBIOS-307 ARM Cortex-A/R Exception Handler corrupts SP
SYSBIOS-306 BIOS_LibType cdoc needs to be updated
SYSBIOS-303 Undefined reference to MSP432 ClockFreqs functions when building for GCC
SYSBIOS-300 Add support for C28x F28379D part
SYSBIOS-297 Switching to TI v8.1 codegen tools on C6x causes warnings
SYSBIOS-295 SYS/BIOS posix semaphore and timer return codes should match spec
SYSBIOS-293 Incorrect documentation for Task_Stat.used
SYSBIOS-291 Interrupt priority 0 should not be allowed on Cortex-A8 Hwi
SYSBIOS-290 C6x Cache_disable() does not support all cache type enums
SYSBIOS-289 Typo in the ti\sysbios\posix_time.h comments regarding CLOCK_REALTIME
SYSBIOS-288 Expose Hwi_plug in m3.Hwi module.
SYSBIOS-284 Rework cc26xx/Boot.c Timer.c and Seconds.c to support the new driverlib organization
SYSBIOS-281 Posix types.h should define ssize_t for non-GCC tools
SYSBIOS-263 Missing linker command file for F28375D
SYSBIOS-262 Modify ti.platforms.tms320x28 to quietly recognize that the F2811 device has no PLL and don’t issue the unknown device warning
SYSBIOS-257 Task’s ROV Module view does not properly handle HWI stack errors
SYSBIOS-232 Rework Clock ROV current tick computation to call meta Timer module API
SYSBIOS-224 Update cdoc documentation regarding HeapMem Module
SYSBIOS-202 AM571x/AM572x Benchloop example for Cortex-M4 imports wrong cfg file
SYSBIOS-200 Deadlock possible when Idle tasks disabled (SMP only)
SYSBIOS-199 Update C28 ROM validation script and re-enable it
SYSBIOS-194 m3 TimestampProvider does not work in m3 Timer interrupt
SYSBIOS-186 C28 Boot getFrequency() needs special case for pll bypass
SYSBIOS-185 LM4 Timer module should use bitband access to RCGC1 register bits to better accommodate older devices
SYSBIOS-151 Timer_start() for SYSTICK does not reload the timer
SYSBIOS-130 Update newlib version in gnu tree to match the one shipped with GCC 4.9 bare metal tools
SYSBIOS-14 Hwi module ROV view does not show instance label
SYSBIOS-9 BIOS 6: Load module does not work correctly when SMP is enabled

Upgrade and Compatibility Information

SYS/BIOS 6.46 and 6.45

Host Support

Supported Operating Systems:


Minimum Required Software Versions:

Required Hardware

Device Support

Click here for the list of supported devices.

Validation Information

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

Known Issues

The following issues are known to affect this release:


For a full description of Benchmarks please see the appendices in the SYS/BIOS 6 User’s Guide.


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 bb 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.

Technical Support and Product Updates

Last updated: February 14, 2017 Build Ver: