======Understanding FreeRTOS (for STM32 primer) code control flow======

Execution starts from //Reset_Handler// in //Demo/CORTEX_STM32F103_Primer_GCC/ST_Code/crt0_STM32x.c// - after performing the required run-time initializations to set up a proper environment for C code, it transfers control to //main// in //Demo/CORTEX_STM32F103_Primer_GCC/main.c//.

======Demo/CORTEX_STM32F103_Primer_GCC/main.c/main======

//main// invokes //prvSetupHardware// which starts the clocks and performs various other low-level initializations. 

//main// creates various tasks by calling //xTaskCreate//.

The scheduler is invoked by calling //vTaskStartScheduler//.

=====Source/tasks.c/xTaskCreate=====

xTaskCreate starts out by allocating a task control block and stack.

<code c>
tskTCB * pxNewTCB;

/* Allocate the memory required by the TCB and stack for the new task.
   checking that the allocation was successful. */

pxNewTCB = prvAllocateTCBAndStack( usStackDepth );
</code>