代碼沒多少,就是配置一下直接發(fā)數(shù)據(jù)
使用PA6 PA7 發(fā)送串口數(shù)據(jù)
int main(void)
{
? ? NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);
? ? Delay_Init();
? ?// USART_interIni();
? ? GPIO_InitTypeDef? GPIO_InitStructure = {0};
? ? USART_InitTypeDef USART_InitStructure = {0};
? ? NVIC_InitTypeDef? NVIC_InitStructure = {0};
? ? RCC_APB1PeriphClockCmd(RCC_APB1Periph_UART7 , ENABLE);
? ? RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA |RCC_APB2Periph_AFIO, ENABLE);
? ? //RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA , ENABLE);
? ? GPIO_PinRemapConfig(GPIO_FullRemap_USART7,ENABLE);
? ? //GPIO_PinRemapConfig(GPIO_PartialRemap_USART7,ENABLE);
? ? GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6;
? ? GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
? ? GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
? ? GPIO_Init(GPIOA, &GPIO_InitStructure);
? ? GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7;
? ? GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
? ? GPIO_Init(GPIOA, &GPIO_InitStructure);
? ? USART_InitStructure.USART_BaudRate = 115200;
? ? 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_Tx | USART_Mode_Rx;
? ? USART_Init(UART7, &USART_InitStructure);
? ? USART_ITConfig(UART7, USART_IT_RXNE, DISABLE);
? ? NVIC_InitStructure.NVIC_IRQChannel = UART7_IRQn;
? ? NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 2;
? ? NVIC_InitStructure.NVIC_IRQChannelSubPriority = 2;
? ? NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
? ? NVIC_Init(&NVIC_InitStructure);
? ? USART_Cmd(UART7, ENABLE);
? ? //u8 TxBuffer2[] = "#Buffer2 Send from USART3 to USART2 using HalfDuplex Mode!";
? ? while(1)
? ? {
? ? ? ? Delay_Ms(1000);
? ? ? ? for(int i=0;i<20;i++)
? ? ? ? USART_SendData(UART7, TxBuffer2[i]);
? ? }
}