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Improvements to the Cortex-M ports:

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- Clear the SysTick current value register before starting the SysTick (only required if something uses SysTick before starting the scheduler).
- Ensure atomic operations are thread safe by executing clrex in the context switch.
This commit is contained in:
Richard Barry 2016-06-27 13:13:05 +00:00
parent 6c975cd46a
commit c296e2cff8
23 changed files with 139 additions and 40 deletions
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5
FreeRTOS/Source/tasks.c
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@ -1901,7 +1901,10 @@ BaseType_t xReturn;
/* If configGENERATE_RUN_TIME_STATS is defined then the following
macro must be defined to configure the timer/counter used to generate
the run time counter time base. */
the run time counter time base. NOTE: If configGENERATE_RUN_TIME_STATS
is set to 0 and the following line fails to build then ensure you do not
have portCONFIGURE_TIMER_FOR_RUN_TIME_STATS() defined in your
FreeRTOSConfig.h file. */
portCONFIGURE_TIMER_FOR_RUN_TIME_STATS();
/* Setting up the timer tick is hardware specific and thus in the