代码清单nvic_irq_enable 函数原型 void nvic_irq_enable(uint8_t nvic_irq, uint8_t nvic_irq_pre_priority, uint8_t nvic_irq_sub_priority){ uint32_t temp_priority = 0x00U, temp_pre = 0x00U, temp_sub = 0x00U; /* use the priority group value to get the temp_pre and the temp...
代码清单nvic_irq_enable 函数原型 void nvic_irq_enable(uint8_t nvic_irq, uint8_t nvic_irq_pre_priority, uint8_t nvic_irq_sub_priority) { uint32_t temp_priority = 0x00U, temp_pre = 0x00U, temp_sub = 0x00U; /* use the priority group value to get the temp_pre and the temp_...
下面以函数nvic_irq_enable为例,介绍NVIC->IP寄存器优先级设置的过程,NVIC->IP和SCB->SHP寄存器的优先级定义通常是相同的。 voidnvic_irq_enable(uint8_tnvic_irq,uint8_tnvic_irq_pre_priority,uint8_tnvic_irq_sub_priority){uint32_ttemp_priority=0x00U,temp_pre=0x00U,temp_sub=0x00U;/* use the...
NVIC->IP[nvic_irq] = (uint8_t)temp_priority; /* enable the selected IRQ */ NVIC->ISER[nvic_irq >> 0x05U] = (uint32_t)0x01U << (nvic_irq & (uint8_t)0x1FU); } nvic_irq_enable()函数的参数说明表 参数nvic_irq是一个枚举变量,它定义了每一个中断的编号,具体定义在gd32f10x.h...
相应属性由NVIC_IRQCh|annelSubPriority的参数配置。例如：中断向量 抢占优先级 响应优先级 A ...
NVIC_IRQChannel用以使能或者失能指定的IRQ通道,可取值有: WWDG_IRQn 窗口看门狗中断 PVD_IRQn PVD通过EXTI探测中断 TAMPER_IRQn 篡改中断 RTC_IRQn RTC全局中断 Flashf_IRQn FLASH全局中断 RCC_IRQn RCC全局中断 EXTI0_IRQn 外部中断线0中断 EXTI1_IRQn 外部中断线1中断 ...
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uint32_t HAL_NVIC_GetPendingIRQ(IRQn_Type IRQn);检查某个中断是否被挂起 void HAL_NVIC_SetPending...
NVIC_InitTypeDefNVIC_InitStructure;NVIC_InitStructure.NVIC_IRQChannel=USART1_IRQn;// 37 串口1中断NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=1;// 抢占优先级为1NVIC_InitStructure.NVIC_IRQChannelSubPriority=2;//响应优先级为2NVIC_InitStructure.NVIC_IRQChannelCmd=ENABLE;//IRQ通道使能NVIC_Init(&NVIC_...
2.2 nvic_irq_enable 以下GPIO 接口位于GD32F10x_Firmware_Library_V2.2.2\Firmware\GD32F10x_standard_peripheral\Include\gd32f10x_gpio.h。 2.3 gpio_exti_source_select 以下EXTI 接口位于GD32F10x_Firmware_Library_V2.2.2\Firmware\GD32F10x_standard_peripheral\Include\gd32f10x_exti.h。