/**
* @brief Setup the system
* SystemInit() is called prior to the application and sets up system
* clocking, memory, and any resources needed prior to the application
* starting.
* @return none
*/
void SystemInit(void)
{
#if defined(CORE_M3) || defined(CORE_M4)
unsigned int *pSCB_VTOR = (unsigned int *) 0xE000ED08;
#if defined(__IAR_SYSTEMS_ICC__)
extern void *__vector_table;
*pSCB_VTOR = (unsigned int) &__vector_table;
#elif defined(__CODE_RED)
extern void *g_pfnVectors;
*pSCB_VTOR = (unsigned int) &g_pfnVectors;
#elif defined(__ARMCC_VERSION)
extern void *__Vectors;
*pSCB_VTOR = (unsigned int) &__Vectors;
#endif
#if defined(__FPU_PRESENT) && __FPU_PRESENT == 1
fpuInit();
#endif
/* Setup system clocking and memory. This is done early to allow the
application and tools to clear memory and use scatter loading to
external memory. */
SystemSetupClocking();
SystemSetupMuxing();
SystemSetupMemory();
#endif
}
/*
* SystemInit() - Initialize the system
*/
void __section(SectionForBootstrapOperations) SystemInit(void)
{
#if !defined(CORE_M0)
/* Initialize vector table in flash */
#if defined(__ARMCC_VERSION)
extern void *__Vectors;
SCB->VTOR = (unsigned int) &__Vectors;
#elif defined(__IAR_SYSTEMS_ICC__)
extern void *__vector_table;
SCB->VTOR = (unsigned int) &__vector_table;
#else /* defined(__GNUC__) and others */
extern void *g_pfnVectors;
SCB->VTOR = (unsigned int) &g_pfnVectors;
#endif
#if 0 // defined(__FPU_PRESENT) && __FPU_PRESENT == 1
/* Initialize floating point */
fpuInit();
#endif
SystemSetupPins(pre_clock_mux, COUNT_OF(pre_clock_mux)); /* Configure pins */
SystemSetupClock(); /* Configure processor and peripheral clocks */
SystemSetupPins(post_clock_mux, COUNT_OF(post_clock_mux)); /* Configure pins */
SystemSetupMemory(); /* Configure external memory */
#endif /* !defined(CORE_M0) */
}
