. Cortex-M3 FreeRTOS PendSV Task Switching Mechanism vListInitialise . typedef struct xLIST { volatile UBaseType_t uxNumberOfItems ; ListItem_t * configLIST_VOLATILE pxIndex ; MiniListItem_t xListEnd ; } List_t ; struct xLIST_ITEM { configLIST_VOLATILE TickType_t xItemValue ; struct xLIST_ITEM * configLIST_VOLATILE pxNext ; struct xLIST_ITEM * configLIST_VOLATILE pxPrevious ; void * pvOwner ; struct xLIST * configLIST_VOLATILE pxContainer ; }; typedef struct xLIST_ITEM ListItem_t ; typedef struct xLIST_ITEM MiniListItem_t ; void vListInitialise ( List_t * const pxList ) { /* The list structure contains a list item which is used to mark the * end of the list. To initialise the list the list end is inserted * as the only list entry. */ pxList -> pxIndex = ( ListItem_t * ) & ( pxList -> xListEnd ); /*lint !e826 !e740 !e