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发表于 2019-4-30 17:01:15
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下面是我配置好的串口函数，测试了六个串口也都能进的去
* usart1: PA9, PA10
* usart2: PA2, PA3
* usart3: PB10, PB11
* usart4: PA0, PA1
* usart5: PB3, PB4
* usart6: PA4, PA5
*/
void uart_init(E_UartType eUartType, unsigned int uBaudRate)
{
uint8_t uIRQChannel = USART1_IRQn;
NVIC_InitTypeDef NVIC_InitStruct;
GPIO_InitTypeDef GPIO_InitStructure;
USART_InitTypeDef USART_InitStructure;
GPIO_TypeDef *ptGpio = GPIOA;
USART_TypeDef *ptUsart = USART1;
if((unsigned char)eUartType < MAX_UART_COUNT){
memset((void*)g_ptUartBufInfos[(unsigned char)eUartType], 0, sizeof(T_UartBuf));
}
switch(eUartType){
case E_Uart1:
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);
GPIO_PinAFConfig(GPIOA, GPIO_PinSource9, GPIO_AF_1);
GPIO_PinAFConfig(GPIOA, GPIO_PinSource10, GPIO_AF_1);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9 | GPIO_Pin_10;
uIRQChannel = USART1_IRQn;
ptGpio = GPIOA;
ptUsart = USART1;
break;
case E_Uart2:
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE);
RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2, ENABLE);
GPIO_PinAFConfig(GPIOA, GPIO_PinSource2, GPIO_AF_1);
GPIO_PinAFConfig(GPIOA, GPIO_PinSource3, GPIO_AF_1);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2 | GPIO_Pin_3;
uIRQChannel = USART2_IRQn;
ptGpio = GPIOA;
ptUsart = USART2;
break;
//#ifdef STM32F030xC
case E_Uart3:
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOB, ENABLE);
RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART3, ENABLE);
GPIO_PinAFConfig(GPIOB, GPIO_PinSource10, GPIO_AF_4);
GPIO_PinAFConfig(GPIOB, GPIO_PinSource11, GPIO_AF_4);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10 | GPIO_Pin_11;
uIRQChannel = USART3_6_IRQn;
ptGpio = GPIOB;
ptUsart = USART3;
break;
case E_Uart4:
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE);
RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART4, ENABLE);
GPIO_PinAFConfig(GPIOA, GPIO_PinSource0, GPIO_AF_4);
GPIO_PinAFConfig(GPIOA, GPIO_PinSource1, GPIO_AF_4);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1;
uIRQChannel = USART3_6_IRQn;
ptGpio = GPIOA;
ptUsart = USART4;
break;
case E_Uart5:
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOB, ENABLE);
RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART5, ENABLE);
GPIO_PinAFConfig(GPIOB, GPIO_PinSource3, GPIO_AF_4);
GPIO_PinAFConfig(GPIOB, GPIO_PinSource4, GPIO_AF_4);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_3 | GPIO_Pin_4;
uIRQChannel = USART3_6_IRQn;
ptGpio = GPIOB;
ptUsart = USART5;
break;
case E_Uart6:
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART6, ENABLE);
GPIO_PinAFConfig(GPIOA, GPIO_PinSource4, GPIO_AF_5);
GPIO_PinAFConfig(GPIOA, GPIO_PinSource5, GPIO_AF_5);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4 | GPIO_Pin_5;
uIRQChannel = USART3_6_IRQn;
ptGpio = GPIOA;
ptUsart = USART6;
break;
//#endif
default:
break;
}
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_NOPULL;
GPIO_Init(ptGpio, &GPIO_InitStructure);
USART_InitStructure.USART_BaudRate = uBaudRate; //波特率
USART_InitStructure.USART_WordLength = USART_WordLength_8b;
USART_InitStructure.USART_StopBits = USART_StopBits_1;
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(ptUsart, &USART_InitStructure);
NVIC_InitStruct.NVIC_IRQChannel = uIRQChannel;
NVIC_InitStruct.NVIC_IRQChannelPriority = 0x01;
NVIC_InitStruct.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStruct);
USART_ITConfig(ptUsart, USART_IT_RXNE, ENABLE);
USART_Cmd(ptUsart, ENABLE);
}
void uart_gpio(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE);
//RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE );
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4|GPIO_Pin_5;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
//GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
GPIO_Init(GPIOA, &GPIO_InitStructure);
}
void USART1_IRQHandler(void) //接收中断
{
if(USART_GetITStatus(USART1, USART_IT_RXNE) != RESET){
unsigned char ucData = USART_ReceiveData(USART1);
usart_put_data_to_buf(g_ptUartBufInfos[0], ucData);
}
}
void USART2_IRQHandler(void)
{
if(USART_GetITStatus(USART2, USART_IT_RXNE) != RESET){
unsigned char ucData = USART_ReceiveData(USART2);
//printf("USART2 recv data: %c, %x\n", ucData, ucData);
usart_put_data_to_buf(g_ptUartBufInfos[1], ucData);
}
}
#ifdef STM32F030xC
void USART3_6_IRQHandler(void)
{
unsigned char ucData;
//uart_senddata("ok \n",4, E_Uart4);
if(USART_GetITStatus(USART3, USART_IT_RXNE) != RESET){
ucData = USART_ReceiveData(USART3);
//printf("USART3 recv data: %c, %x\n", ucData, ucData);
usart_put_data_to_buf(g_ptUartBufInfos[2], ucData);
}
if(USART_GetITStatus(USART4, USART_IT_RXNE) != RESET){
ucData = USART_ReceiveData(USART4);
USART_SendData(USART4, ucData);
//printf("USART4 recv data: %c, %x\n", ucData, ucData);
usart_put_data_to_buf(g_ptUartBufInfos[3], ucData);
}
if(USART_GetITStatus(USART5, USART_IT_RXNE) != RESET){
ucData = USART_ReceiveData(USART5);
//printf("USART5 recv data: %c, %x\n", ucData, ucData);
usart_put_data_to_buf(g_ptUartBufInfos[4], ucData);
}
if(USART_GetITStatus(USART6, USART_IT_RXNE) != RESET){
ucData = USART_ReceiveData(USART6);
//printf("USART6 recv data: %c, %x\n", ucData, ucData);
usart_put_data_to_buf(g_ptUartBufInfos[5], ucData);
}
}
#endif |
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