FreeRTOS 10.5.002 Release

• Added support of DSRAM feature for 20829B0 kit (CM33) on IAR compiler.

FreeRTOS 10.5.0 Release

• Updated to upstream FreeRTOS kernel version 10.5.0

FreeRTOS 10.4.306 Release

• Modified the FreeRTOSConfig.h of CR4 port to fix the issue with debugger
• Fixed MISRA warnings
• DSRAM support added for CM33 ARM port

FreeRTOS 10.4.305 Release

• Added functions to save and restore context before sleep for CM33

FreeRTOS 10.4.304 Release

Created a common section for frequently called freertos functions

FreeRTOS 10.4.303 Release

Added Cortex®-M7 (CM7) support based on upstream FreeRTOS kernel version 10.4.3 LTS Patch 2

FreeRTOS 10.4.302 Release

• Updated to upstream FreeRTOS kernel version 10.4.3 LTS Patch 2

FreeRTOS 10.4.4 Release

• Added Cortex®-R4 (CR4) support based on upstream FreeRTOS kernel version 10.4.3 LTS Patch 1

FreeRTOS 10.4.3 Release

• Updated to match the upstream FreeRTOS kernel version 10.4.3
• Updated to match the upstream FreeRTOS kernel version 10.4.3 LTS Patch 1

FreeRTOS 10.3.1 Release

FreeRTOS 10.3.1

What's Included?

• FreeRTOS kernel 10.3.1
• Ports for GCC, IAR, ARM compilers and Cortex M0, Cortex M0+, Cortex M4 CPUs.
• FreeRTOSConfig.h template with the recommended configuration options.

For a complete description of FreeRTOS, refer to README.md.

What Changed?

v10.3.1

• Updated to match the upstream FreeRTOS kernel version 10.3.1.

• Added ports for the Cortex M0 and Cortex M0+ CPUs.

• Added ports for the ARM Compiler 6 (based on GCC port files).

• Updated FreeRTOSConfig.h template to enable configuration options required by the RTOS support libraries:

    #define configUSE_MUTEXES                       1
    #define configUSE_RECURSIVE_MUTEXES             1
    #define configUSE_COUNTING_SEMAPHORES           1
    #define configSUPPORT_STATIC_ALLOCATION         1
    #define configUSE_TRACE_FACILITY                1
    #define INCLUDE_xTimerPendFunctionCall          1
  

• Enabled allocation of thread reentrancy structures for each task:

    #define configUSE_NEWLIB_REENTRANT              1
  

• Automatically enable low power tickless mode based on ModusToolbox Device Configurator selection:

    #if defined(CY_CFG_PWR_SYS_IDLE_MODE) && \
        ((CY_CFG_PWR_SYS_IDLE_MODE == CY_CFG_PWR_MODE_SLEEP) || \
         (CY_CFG_PWR_SYS_IDLE_MODE == CY_CFG_PWR_MODE_DEEPSLEEP))
    extern void vApplicationSleep( uint32_t xExpectedIdleTime );
    #define portSUPPRESS_TICKS_AND_SLEEP( xIdleTime ) vApplicationSleep( xIdleTime )
    #define configUSE_TICKLESS_IDLE                 2
    #else
    #define configUSE_TICKLESS_IDLE                 0
    #endif
  

• Automatically configure the deep sleep latency based on ModusToolbox Device Configurator selection:

    #if( CY_CFG_PWR_DEEPSLEEP_LATENCY > 0 )
    #define configEXPECTED_IDLE_TIME_BEFORE_SLEEP   CY_CFG_PWR_DEEPSLEEP_LATENCY
    #endif
  

• Added dependency on the CLib FreeRTOS Support and RTOS Abstraction libraries.

Supported Software and Tools

This version of FreeRTOS was validated for compatibility with the following Software and Tools:

Software and Tools	Version
ModusToolbox Software Environment	2.2
Peripheral Driver Library (mtb-pdl-cat1)	2.0.0
GCC Compiler	9.3.1
IAR Compiler	8.42.2
ARM Compiler 6	6.13

Known Issues

Usage of the ARM Compiler 6 with enabled LTO (Link Time Optimization) option
can result in an incorrect behavior of the application in some scenarios.
It is recommended to avoid enabling LTO compiler/linker flags (-flto)
when using ARM Compiler 6 with FreeRTOS applications.

More information

The following resources contain more information:

• FreeRTOS README.md
• FreeRTOS API Documentation
• FreeRTOS Home Page
• ModusToolbox Software Environment, Quick Start Guide, Documentation, and Videos
• PSoC 6 Technical Reference Manuals
• PSoC 6 Programmable System-on-Chip datasheets
• Cypress Semiconductor

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