/*********************************************************************************************************//**
* @brief Set the vector table location and Offset.
* @param NVIC_VectTable: Specify if the vector table is in FLASH or RAM.
* This parameter can be one of the following values:
* @arg NVIC_VECTTABLE_RAM
* @arg NVIC_VECTTABLE_FLASH
* @param NVIC_Offset: Vector Table base offset field.
* This value must be a multiple of 0x100.
* @retval None
***********************************************************************************************************/
void NVIC_SetVectorTable(u32 NVIC_VectTable, u32 NVIC_Offset)
{
/* Check the parameters */
Assert_Param(IS_NVIC_VECTTABLE(NVIC_VectTable));
Assert_Param(IS_NVIC_OFFSET(NVIC_Offset));
SCB->VTOR = NVIC_VectTable | (NVIC_Offset & (u32)0x1FFFFF80);
}
//设置向量表偏移地址
//NVIC_VectTab:基址
//Offset:偏移量
void MY_NVIC_SetVectorTable(u32 NVIC_VectTab, u32 Offset)
{
//检查参数合法性
assert_param(IS_NVIC_VECTTAB(NVIC_VectTab));
assert_param(IS_NVIC_OFFSET(Offset));
SCB->VTOR = NVIC_VectTab|(Offset & (u32)0x1FFFFF80);//设置NVIC的向量表偏移寄存器
//用于标识向量表是在CODE区还是在RAM区
}
/***************************************************************************//**
* @brief
* Set the allocation and offset of the vector table
*
* @details
*
* @note
*
* @param[in] NVIC_VectTab
* Indicate the vector table is allocated in RAM or ROM
*
* @param[in] Offset
* The vector table offset
******************************************************************************/
static void NVIC_SetVectorTable(
rt_uint32_t NVIC_VectTab,
rt_uint32_t Offset)
{
/* Check the parameters */
RT_ASSERT(IS_NVIC_VECTTAB(NVIC_VectTab));
RT_ASSERT(IS_NVIC_OFFSET(Offset));
SCB->VTOR = NVIC_VectTab | (Offset & (rt_uint32_t)0x1FFFFF80);
}