(3) 常用操作是先关后开中断 NVIC_SETPRIMASK(); // Disable Interrupts NVIC_RESETPRIMASK(); // Enable Interrupts 两种类型函数要成对使用。 STM32有43个channel的settable的中断源;AIRC(Application Interrupt and Reset Register)寄存器中有用于指定优先级的4 bits。这4个bits用于分配preemption优先级和sub优先...
set与map 总的来说set和map是关联式容器,而我们前面学习的vector和list的序列式容器。 set和map底层几乎是搜索二叉树,所以他们都可以进行排序和去重,走的是中序遍历1、set(底层相当于key的搜索树)具体可以看:https://legacy.cplusplus.com/reference/set/set/?kw=seta、插入:b、删除:注:2、mu 子树 二叉搜索树...
另外,在同一阶级内部,一个人在做事的时候,另外一个人不能打断他;(preemption优先级别相同的中断源之间没有嵌套关系) 还有,如果他们两个同时想做事,因为没有阶层,那么就根据Vector table中的物理排序,让排名靠前的人去做; 又有1个人SPI1_IRQChannel,设定如下 NVIC_InitStructure.NVIC_IRQChannel = SPI1_IRQChannel; ...
< Vector Table Offset Register */_IO uint32_t AIRCR; /*!< Application Interrupt / Reset Control Register */_IO uint32_t SCR; /*!< System Control Register */_IO uint32_ 25、t CCR; /*!< Configuration Control Register */_IO uint8_t SHP12; /*!< System Handlers Priority Registers ...
STM32允许在启动时或运行时通过设置NVIC的向量表偏移寄存器(VectorTableOffsetRegister,VTOR)来重映射中断向量表。 5.2.1示例:运行时重映射中断向量表 以下是一个在STM32上运行时重映射中断向量表的示例代码: #includestm32f1xx_hal.h voidSystemClock_Config(void); voidError_Handler(void); intmain(void) { /...
VTOR = Vector Table Offset Register AIRCR = Application Interrupt/Reset Control Register SCR = System Control Register CCR = Configuration Control Register SHPR = System Handlers Priority Register SHCSR = System Handler Control and State Register CFSR = Configurable Fault Status Registers HFSR = Hard ...
* @param Offset: Vector Table base offset field. This value must be a multiple * of 0x200. * @retval None */ void NVIC_SetVectorTable(uint32_t NVIC_VectTab, uint32_t Offset) { /* Check the parameters */ assert_param(IS_NVIC_VECTTAB(NVIC_VectTab)); ...
/* Set the Vector Table base location at 0x08000000 */ NVIC_SetVectorTable(NVIC_VectTab_FLASH,0x0); #endif /* Configure one bit for preemption priority */ NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1); /* Enable the EXTI9_5 Interrupt */ NVIC_InitStructure.NVIC_IRQChannel=EXTI9_5_IRQChannel...
/* Set the Vector Table base location at 0x08000000 */ NVIC_SetVectorTable(NVIC_VectTab_FLASH,0x0); #endif /* Configure one bit for preemption priority */ NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1); /* Enable the EXTI9_5 Interrupt */ NVIC_InitStructure.NVIC_IRQChannel=EXTI9_5_IRQChannel...