如題，對(duì)應(yīng)開發(fā)板是CH32F&V208W-R0-1v4，將USART3重映射到PC10、PC11后，在開發(fā)板上PC10腳發(fā)送數(shù)據(jù)不成功，PC10一直為低電平 ，代碼如下:

????GPIO_InitTypeDef??GPIO_InitStructure?=?{0};
????USART_InitTypeDef?USART_InitStructure?=?{0};

????RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART3,?ENABLE);
????RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC?|?RCC_APB2Periph_GPIOB,?ENABLE);
????RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO,?ENABLE);

????GPIO_PinRemapConfig(GPIO_PartialRemap_USART3,?ENABLE);

????/*?UART3?TX-->C.10???RX-->C.11?*/
????GPIO_InitStructure.GPIO_Pin?=?GPIO_Pin_10;
????GPIO_InitStructure.GPIO_Speed?=?GPIO_Speed_50MHz;
????GPIO_InitStructure.GPIO_Mode?=?GPIO_Mode_AF_PP;
????GPIO_Init(GPIOC,?&GPIO_InitStructure);

????GPIO_InitStructure.GPIO_Pin?=?GPIO_Pin_11;
????GPIO_InitStructure.GPIO_Mode?=?GPIO_Mode_IN_FLOATING;
????GPIO_Init(GPIOC,?&GPIO_InitStructure);??

????USART_InitStructure.USART_BaudRate???=?9600;
????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(USART3,?&USART_InitStructure);
????USART_Cmd(USART3,?ENABLE);

您好，參考下帖回復(fù)

http://www.findthetime.net/bbs/thread-120562-1.html

?

初步判斷應(yīng)該是我的芯片壞了，gpio置高電平也不生效，應(yīng)該是這個(gè)口燒了