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- 2015-10-14
- 在线时间
- 6 小时
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串口配置
//GPIO¶Ë¿úéèÖÃ
GPIO_InitTypeDef GPIO_InitStructure;
USART_InitTypeDef USART_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
/* ê1ÄüSTM32μÄUSART¶Ôó|GPIOμÄClockê±Öó */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA , ENABLE);
/* ê1ÄüSTM32μÄUSARTμÄClockê±Öó */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);
//USART1_TX GPIOA9
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9; //PA9
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_10MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; //¸′óÃíÆíìêä3ö
GPIO_Init(GPIOA, &GPIO_InitStructure);//3õê¼»ˉGPIO
//USART1_RX GPIOA10
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;//PA10
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;//¸¡¿Õêäèë
GPIO_Init(GPIOA, &GPIO_InitStructure);//3õê¼»ˉGPIO
//Usart1 NVIC ÅäÖÃ
NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=2 ;//ÇàÕ¼óÅÏè¼¶1
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 2; //×óóÅÏè¼¶1
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //IRQí¨μàê1Äü
NVIC_Init(&NVIC_InitStructure); //¸ù¾YÖ¸¶¨μÄ2Îêy3õê¼»ˉVIC¼Ä′æÆ÷
//USART 3õê¼»ˉéèÖÃ
USART_InitStructure.USART_BaudRate = bound;//′®¿ú2¨ìØÂê
USART_InitStructure.USART_WordLength = USART_WordLength_8b;//×Ö3¤Îa8λêy¾Y¸ñê½
USART_InitStructure.USART_StopBits = USART_StopBits_1;//ò»¸öí£Ö1λ
USART_InitStructure.USART_Parity = USART_Parity_No;//ÎTÆæÅ¼D£Ñéλ
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;//ÎTó2¼têy¾Yá÷¿ØÖÆ
USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx; //êÕ·¢Ä£ê½
USART_Init(USART1, &USART_InitStructure); //3õê¼»ˉ′®¿ú3
USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);//¿aÆô′®¿ú½óêüÖD¶Ï
USART_Cmd(USART1, ENABLE); //ê1Äü′®¿ú1
USART_ClearFlag(USART1, USART_FLAG_TXE);//Çå3y·¢Ëí±ê־λ
中断函数:
/*******************************************************************
oˉêy: ′®¿ú1ÖD¶Ïoˉêy
2Îêy: êäèëÖμ£oÎT
·μ»ØÖμ£oÎT
*******************************************************************/
void USART1_IRQHandler(void)
{
u8 Res;
if(USART_GetITStatus(USART1, USART_IT_RXNE) != RESET)
{
Res =(u8)USART_ReceiveData(USART1); //¶á衽óêÕμ½μÄêy¾Y
}
}
主函数:
u8 i;
sysGPIO_Init();
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2); //éèÖÃNVICÖD¶Ï·Ö×é2:2λÇàÕ¼óÅÏè¼¶£¬2λÏìó|óÅÏè¼¶s
uart1_init(9600); //′®¿ú3õê¼»ˉ
while(1)
{}
跪求大神指导
开始文件已经更改为.cl 在Define已USE_STDPERIPH_DRIVER, STM32F10X_CL
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