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34 #include "cmsis_nvic.h"
36 #if defined(TOOLCHAIN_GCC_ARM) || defined(TOOLCHAIN_ARM_STD)
37 __attribute__((aligned(256)))
39 #if defined(TOOLCHAIN_IAR)
40 #pragma data_alignment=256
42 static void (*ramVectorTable[MXC_IRQ_COUNT])(void);
44 void NVIC_SetVector(IRQn_Type IRQn, uint32_t vector)
46 uint32_t *vectors = (uint32_t*)SCB->VTOR;
49 // Copy and switch to dynamic vectors if the first time called
50 if (SCB->VTOR != (uint32_t)ramVectorTable) {
51 uint32_t *old_vectors = (uint32_t*)SCB->VTOR;
52 vectors = (uint32_t*)ramVectorTable;
53 for (i = 0; i < NVIC_NUM_VECTORS; i++) {
54 vectors[i] = old_vectors[i];
56 SCB->VTOR = (uint32_t)ramVectorTable;
58 vectors[IRQn + NVIC_USER_IRQ_OFFSET] = vector;
61 uint32_t NVIC_GetVector(IRQn_Type IRQn)
63 uint32_t *vectors = (uint32_t*)SCB->VTOR;
64 return vectors[IRQn + NVIC_USER_IRQ_OFFSET];