首先，在串口中断中设置断点。
查看中断接收到的是什么数据？
如果是0x00，那么除了STM32编程问题外，还要 ...
接收的数据始终是0 Dylan疾风闪电 发表于 2016-5-23 10:21
首先，在串口中断中设置断点。
查看中断接收到的是什么数据？
如果是0x00，那么除了STM32编程问题外，还要 ...
好的，谢谢你的回复 leolzf0000 发表于 2016-5-23 09:26
我也遇到过类似的问题，好好研究一下手册
那你最后怎么解决的，请指教，谢谢！ 我的配置代码如下：
void USART1_Configuration(void)
{
USART_InitTypeDef USART_InitStructure;
GPIO_InitTypeDef GPIO_InitStructure;
NVIC_InitTypeDefNVIC_InitStructure;
/* Enable GPIO clock */
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE);
/* Enable USART clock */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);
/* Connect PA9 to USART1_Tx */
GPIO_PinAFConfig(GPIOA, GPIO_PinSource9, GPIO_AF_1);
/* Connect PA10 to USART1_Rx */
GPIO_PinAFConfig(GPIOA, GPIO_PinSource10, GPIO_AF_1);
/* Configure USART Tx and Rx as alternate function push-pull */
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9 | GPIO_Pin_10;
GPIO_Init(GPIOA, &GPIO_InitStructure);
/* Enable the USART1 gloabal Interrupt */
NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPriority = 3;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
/* USARTx configuration ----------------------------------------------------*/
/* USARTx configured as follow:
- BaudRate = 115200 baud
- Word Length = 8 Bits
- one Stop Bit
- No parity
- Hardware flow control disabled (RTS and CTS signals)
- Receive and transmit enabled
*/
USART_InitStructure.USART_BaudRate = 115200;
USART_InitStructure.USART_WordLength = USART_WordLength_8b;
USART_InitStructure.USART_StopBits = USART_StopBits_1;
/* When using Parity the word length must be configured to 9 bits */
USART_InitStructure.USART_Parity = USART_Parity_No;
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
USART_Init(USART1, &USART_InitStructure);
/* Enable USART Receive data register not empty interrupt */
USART_ITConfig(USART1,USART_IT_RXNE,ENABLE);
/* Enable USART */
USART_Cmd(USART1, ENABLE);
/* Clear Transmission complete flag */
USART_ClearFlag(USART1, USART_FLAG_TC);
} mrclp 发表于 2016-5-23 09:11
Like this...
USART_ClearITPendingBit(USART1, USART_IT_TC);
USART_ITConfig(USART1, USART_IT_TC, ENAB ...
好的，我按照你的顺序试试，谢谢指点！ 这个需要先配置串口，然后再配置IO
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