STM32 USART2傳送資料筆記
阿新 • • 發佈：2018-12-31
硬體裝置：STM32VCT6
GPIO_InitTypeDef GPIO_InitStructure;
USART_InitTypeDef USART_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);//使能GPIOA時鐘
RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2, ENABLE);//使能USART2時鐘
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;
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_3;GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOA, &GPIO_InitStructure);
USART_InitStructure.USART_BaudRate = bound;//波特率
USART_InitStructure.USART_WordLength = USART_WordLength_8b;//8位資料位
USART_InitStructure.USART_StopBits = USART_StopBits_1;//一位停止位
USART_InitStructure.USART_Parity = USART_Parity_No;//無校驗位
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;//無硬流控
USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
//傳送資料函式//
USART_Init(USART2, &USART_InitStructure); //初始化串列埠2
USART_Cmd(USART2, ENABLE); //使能串列埠2
USART_SendData(USART2, 1);//傳送十六進位制1
while(USART_GetFlagStatus(USART2,USART_FLAG_TC)!=SET);//等待發送完成，必有