NVIC_InitStructure.NVIC_IRQChannel = DMA2_Channel4_5_IRQn;NVIC_InitStructure.NVIC_IRQChannelPreemption...
目前尝试着利用DMA2的channel3、4、5分别来存储SDADC1（3P、8P）、2（0P、1P）、3(7P、8P)三路的...
#define SAIA_RX_DMA2_StreamX_IRQn DMA2_Stream4_IRQn #define SAIA_RX_DMA2_StreamX_IRQHandler...
NVIC_InitStructure.NVIC_IRQChannel = DMA1_Channel4_IRQn|DMA1_Channel5_IRQn; // DMA通道的中断...
HAL_NVIC_SetPriority(DMA1_Channel4_IRQn, 0, 0); HAL_NVIC_EnableIRQ(DMA1_Channel4_IRQn); HAL_NVIC_SetPriority(USART2_IRQn, 0, 0); HAL_NVIC_EnableIRQ(USART2_IRQn); 注意:以上代码是基于STM32 HAL库的示例,实际项目中可能需要根据具体的硬件和配置进行调整。另外,错误处理函数Error_Handler()需要...
NVIC_InitStructure.NVIC_IRQChannel = DMA1_Channel6_IRQn; //配置串口1为中断源 NVIC_InitStructure...
DMA_ITConfig(DMA1_Channel7, DMA_IT_TC, ENABLE); NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1); /* Enable USART2 DMA TX Finish Interrupt */ NVIC_InitStructure.NVIC_IRQChannel = DMA1_Channel7_IRQn; NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1; ...
NVIC_SetPriority(TIM2_IRQn, 1);} DMA配置：static void my_DMA_init(void) { // enable DMA1 ...
DMA1_Channel4->CCR|=1<<0; NVIC_InitStructure.NVIC_IRQChannel = DMA1_Channel4_IRQn; NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
其中,F429芯片,系统异常10个,外部中断91个。除个别异常的优先级固定外,其它均可编程。stm32f4xx.h typedef enum IRQn...,数值越小,优先级越高。但是绝大多数CM4芯片都会精简设计,以致实际上支持的优先级数减少,在F429中,只使用了高4bit。F429使用4bit表达优先级表达优先级用于表达优先级的这4...