Move structures used for static allocation of tasks and queues into FreeRTOS.h from their individual API header files.
Add SAME70 Xplained Atmel Studio project.
Update SAMV71 Atmel Studio project to use Studio 7.
Revert some changes to GenQTest.c standard demo task which only function correctly when a queue registry was used.
Minor change to xQueueGenericReceive() to catch the extreme case of data being placed into a queue between a task timing out and leaving the xQueueGenericReceive() function.
Added xSemaphoreGetCount() macro.
Demo app changes:
Updated countsem.c to test the new xSemaphoreGetCount() macro.
+ Introduced xTaskCreateStatic() to allow tasks to be created without any dynamic memory allocation.
+ When a task notification is used to unblock a task from an ISR, but the xHigherPriorityTaskWoken parameter is not used, then pend a context switch to occur during the next tick interrupt.
Demo application changes:
+ Updated TaskNotify.c to test the case where a task is unblocked by an ISR, but does not use its xHigherPriorityTaskWoken parameter.
+ Updated the Win32 MSVC project to test statically allocated tasks being created and deleted.
+ Introduced StaticAllocation.c standard demo task.
+ Previously, if a task was deleted, the memory allocated to the task by the RTOS was freed in the Idle task. Now if a task deletes another task the memory is freed immediately. The idle task is however still responsible for freeing the memory when a task deletes itself.
+ Added pcQueueGetQueueName() function to return the name of a queue from its handle, assuming the queue is registers.
Demo application:
+ Update GenQTest to exercise the new pcQueueGetQueueName() function.
+ Delete workspaces from old Eclipse examples, leaving just the projects.
+ Rework comments in the MSVC simply blinky demo.
+ Support tickless idle when configUSE_PREEMPTION is 0 (previously tickless idle was only supported when the pre-emptive scheduler was being used).
+ If a stack was statically allocated, then don't try freeing it if the TCB cannot be allocated.
+ Remove use of INCLUDE_xEventGroupsSetBitsFromISR() pre-processor macro, as it was not tested anyway.
Demo app changes:
+ Updated SAM4L Atmel Studio project to use Atmel Studio 7.
Bug fix - issue introduced in V8.2.2 when the current timer list is empty and the overflow timer list is not empty.
Add PIC32MZ EF (floating point) support and update the MZ demo project to test the flop context switching.
Improve efficiency of the stack overflow checking.
Add CLI to RX71M demo.
General tidy up of new RZ and RX projects - including ensuring the UART driver copes with 0 length strings.
Add stack overflow checking to the [old] PIC24 demo.
FreeRTOS+Trace:
- Add trace macros for task notifications.
- Update to the latest trace recorder library.
Demo projects:
- Only include the CLI command to show run time states if configGENERATE_RUN_TIME_STATS is set to 1.
Exclude the entire croutine.c file when configUSE_CO_ROUTINES is 0.
New ports:
Added Cortex-M7 IAR and Keil port layers that include a minor errata workaround r0p1 Cortex-M7 devices.
Added Cortex-M4F port layer for CCS.
New demo applications:
Added demo application for STM32F7.
Added demo application for SAMv71.
+ Added mtCOVERAGE_TEST_DELAY() macro to facilitate getting better code coverage during testing.
+ Update prvNotifyQueueSetContainer() so it does not call xTaskRemoveFromEventList() if it is called from an interrupt, and the queue is locked.
Demo apps:
Added QueueSetPolling.c/h demo/test functions.
+ Fix a few compiler warnings.
+ Add TickType_t specific critical sections so critical sections are not used when accessing the tick count in cases where the access is atomic (32-bit tick count, 32-bit architecture).
+ Optimise Cortex-M4F ports by inlining some critical section macros.
+ Original ports used a #define to set the path to portmacro.h - that method has been obsolete for years and now all the old definitions have been moved into a separate header files called deprecated_definitions.h.
+ Cortex-M port now check the active vector bits against 0xff when determining if a function is called from an interrupt - previously only a subset of the bits (0x1f) were checked.
+ Add in new standard demo/test files TaskNotify.c/h and include the files in the simulator demos.
+ Update trace recorder code, and some demos to use the new version (more to do).
+ Introduce uxTaskPriorityGetFromISR().
+ Minor typo corrections.
+ Update MingW simulator demo to match the MSVC simulator demo.
+ Change how queues are allocated and deleted so only one pvPortMalloc() or vPortFree() is required in place of the previous 2.
+ Where the TCB is allocated in relation to the stack is now dependent on the stack growth direction. The stack will not grow into the TCB.
+ Introduce the configAPPLICATION_ALLOCATED_HEAP constant to allow the application to provide the array used by heap_4.c as its heap. This allows the application writer to use qualifiers on the array to, for example, force the memory into faster RAM.
Demo application:
+ Add demo for SAMA5D4 using IAR.
Helper updates to allow a count of the number of mutexes held to be added.
Updates to the CCS Cortex-R4 implementation necessitated by a change in compiler semantics.
Update PIC32MX and MZ ports to assert if a non ISR safe function is called from an ISR.
Change INCLUDE_xTimerPendFunctionCallFromISR to INCLUDE_xTimerPendFunctionCall
Update event group trace macros to match the new trace recorder code.
Ensure parameter name consistency by renaming any occurrences of xBlockTime and xBlockTimeTicks to xTicksToWait.
Continue work on GCC/RL78 port - still a work in progress.
Adjust how the critical section was used in xQueueAddToSet.
Remove obsolete extern declaration of vTaskSwitchContext() from the MPX430X IAR portmacro.h (other older portmacro.h header files contain the same declaration).
When a task is unblocked the need for a context switch is only signalled if the unblocked task has a priority higher than the currently running task, instead of higher than or equal to the priority of the currently running task.
Replace #define types with typedefs.
Rename all typedefs to have a _t extension.
Add #defines to automatically convert old FreeRTOS specific types to their new names (with the _t).
Introduce xPortRunning variable into Win32 simulator port layer.
Add port optimised task selection macro for the GCC Win32 port layer (the MSVC version has had one for a while).
Ensure the event list item value does not get modified by code in tasks.c (priority inheritance, or priority change) when it is in use by the event group implementation.
Reset the expected block time variable when a task is suspended or deleted in case the value held in the variables was associated with the task just suspended or deleted.
Add a task pre-delete hook to allow the insertion of any port specific clean up when a task is deleted.
Increase use of 'const' qualifiers.
Add vPortCloseRunningThread() into the Win32 port layer to attempt to allow Windows threads to be closed more gracefully when a task deletes itself.
Correct header comments in the UARTCommandConsole.c file used in the SmartFusion2 demo.
Exercise the new xQueueSpacesAvailable() function in the MSVC demo.
Add defaults for the new traceMALLOC and traceFREE trace macros.
Catch tasks trying to exit their functions in the Cortex-M0 ports.
Add additional comments to timers.c in response to a support forum question.
Initialise _impure_ptr prior to the first task being started.
Prior to V7.5.0 a yield pended in the tick hook would have occurred during the same tick interrupt. Return pdTRUE from xTaskIncrementTick() if a yield is pending to revert to that behaviour.
Richard Barry