From 789788931e2db83e86dcd1026ff6ff10edf54c45 Mon Sep 17 00:00:00 2001 From: cgy Date: Tue, 10 Feb 2026 09:08:03 +0800 Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E6=94=B9uart2=E5=92=8Cuart3=E7=9A=84?= =?UTF-8?q?=E6=97=B6=E9=92=9F=E5=88=9D=E5=A7=8B=E5=8C=96=E5=87=BD=E6=95=B0?= =?UTF-8?q?=E7=9A=84=E9=94=99=E8=AF=AF?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- SYSTEM/usart/usart.c | 22 +++++++++++----------- 1 file changed, 11 insertions(+), 11 deletions(-) diff --git a/SYSTEM/usart/usart.c b/SYSTEM/usart/usart.c index 1213628..eee8fd0 100644 --- a/SYSTEM/usart/usart.c +++ b/SYSTEM/usart/usart.c @@ -211,11 +211,11 @@ void uart2_init(u32 bound){ NVIC_InitTypeDef NVIC_InitStructure; RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA,ENABLE); //使能GPIOA时钟 - RCC_APB2PeriphClockCmd(RCC_APB1Periph_USART2,ENABLE);//使能USART1时钟 + RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2,ENABLE);//使能USART1时钟 - //串口1对应引脚复用映射 - GPIO_PinAFConfig(GPIOA,GPIO_PinSource2,GPIO_AF_USART2); //GPIOA9复用为USART1 - GPIO_PinAFConfig(GPIOA,GPIO_PinSource3,GPIO_AF_USART2); //GPIOA10复用为USART1 + //串口2对应引脚复用映射 + GPIO_PinAFConfig(GPIOA,GPIO_PinSource2,GPIO_AF_USART2); //GPIOA2复用为USART2 + GPIO_PinAFConfig(GPIOA,GPIO_PinSource3,GPIO_AF_USART2); //GPIOA3复用为USART3 //USART1端口配置 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2 | GPIO_Pin_3; //GPIOA9与GPIOA10 @@ -293,21 +293,21 @@ void uart3_init(u32 bound){ NVIC_InitTypeDef NVIC_InitStructure; RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOD,ENABLE); //使能GPIOA时钟 - RCC_APB2PeriphClockCmd(RCC_APB1Periph_USART3,ENABLE);//使能USART1时钟 + RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART3,ENABLE);//使能USART1时钟 - //串口1对应引脚复用映射 - GPIO_PinAFConfig(GPIOA,GPIO_PinSource8,GPIO_AF_USART3); //GPIOA9复用为USART1 - GPIO_PinAFConfig(GPIOA,GPIO_PinSource9,GPIO_AF_USART3); //GPIOA10复用为USART1 + //串口3对应引脚复用映射 + GPIO_PinAFConfig(GPIOA,GPIO_PinSource8,GPIO_AF_USART3); //GPIOD8复用为USART1 + GPIO_PinAFConfig(GPIOA,GPIO_PinSource9,GPIO_AF_USART3); //GPIOD9复用为USART1 - //USART1端口配置 - GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9 | GPIO_Pin_10; //GPIOA9与GPIOA10 + //USART3端口配置 + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8 | GPIO_Pin_9; // GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;//复用功能 GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; //速度50MHz GPIO_InitStructure.GPIO_OType = GPIO_OType_PP; //推挽复用输出 GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP; //上拉 GPIO_Init(GPIOD,&GPIO_InitStructure); //初始化PA9，PA10 - //USART1 初始化设置 + //USART3 初始化设置 USART_InitStructure.USART_BaudRate = bound;//波特率设置 USART_InitStructure.USART_WordLength = USART_WordLength_8b;//字长为8位数据格式 USART_InitStructure.USART_StopBits = USART_StopBits_1;//一个停止位