//USART_IT_RXNEUSART_ClearITPendingBit(USART1, USART_IT_RXNE);//USART_IT_IDLEUSART1->SR;//先读SR寄存器USART1->DR;//再读DR寄存器 使用举例 u8 count; u8 flag;voiduart_init(u32 bound){ ... USART_ITConfig(USART1, USART_IT_RXNE, ENABLE); USART_ITConfig(USART1, USART_IT_IDLE, ENABLE)...
//USART_IT_RXNEUSART_ClearITPendingBit(USART1, USART_IT_RXNE);//USART_IT_IDLEUSART1->SR;//先读SR寄存器USART1->DR;//再读DR寄存器 使用举例 u8 count; u8 flag;voiduart_init(u32 bound){ ... USART_ITConfig(USART1, USART_IT_RXNE, ENABLE); USART_ITConfig(USART1, USART_IT_IDLE, ENABLE)...
USART_ITConfig(USART1, USART_IT_RXNE, ENABLE); USART_ITConfig(USART1, USART_IT_IDLE, ENABLE); ... } void USART1_IRQHandler(void) { u8 r; if(USART_GetITStatus(USART1, USART_IT_RXNE) != RESET) { USART_ClearITPendingBit(USART1, USART_IT_RXNE); //只USART_ReceiveData也可以 //r = U...
USART_ClearITPendingBit(USART1, USART_IT_RXNE);//USART_IT_IDLE USART1->SR; //先读SR寄存器 USART1->DR; //再读DR寄存器 使⽤举例 u8 count;u8 flag;void uart_init(u32 bound){ ...USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);USART_ITConfig(USART1, USART_IT_IDLE, ENABLE);...} voi...
之前用串口的USART_IT_IDLE中断和USART_IT_RXNE（此中断每接收一个字节就会进一次中断），然后利用USART...
IDLE位不会再次被置高直到RXNE位被置起(即又检测到一次空闲总线)。RXNE接收中断可以不用开启,减少进中断的次数。 voidMy_UART_Init(void) { GPIO_InitTypeDef GPIO_InitStruct; USART_InitTypeDef USART_InitStruct; NVIC_InitTypeDef NVIC_InitStruct; DMA_InitTypeDef DMA_InitStruct;...
IDLE位不会再次被置高直到RXNE位被置起(即又检测到一次空闲总线) (0)踩踩(0) 所需:1积分 mowi 2025-01-20 17:18:56 积分:1 YTS270ELAA-01-100N 2025-01-20 17:18:24 积分:1 tocloudworld 2025-01-20 17:14:21 积分:1 Motion-Blur-With-Depth-Texture ...