void USART1_2_Init(void)
{
GPIO_InitType GPIO_InitStructure;
USART_InitType USART_InitStructure;
DMA_InitType DMA_InitStructure;
NVIC_InitType NVIC_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2PERIPH_GPIOA | RCC_APB2PERIPH_USART1, ENABLE);
RCC_APB1PeriphClockCmd(RCC_APB1PERIPH_USART2, ENABLE);
RCC_AHBPeriphClockCmd(RCC_AHBPERIPH_DMA1, ENABLE);
GPIO_InitStructure.GPIO_Pins = GPIO_Pins_2 | GPIO_Pins_9; // PA2 USART2 TX LCD | PA9 USART1 TX mainboard
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_InitStructure.GPIO_MaxSpeed = GPIO_MaxSpeed_50MHz;
GPIO_Init(GPIOA, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pins = GPIO_Pins_3 | GPIO_Pins_10; // PA2 USART2 RX LCD | PA9 USART1 RX mainboard
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_InitStructure.GPIO_MaxSpeed = GPIO_MaxSpeed_50MHz;
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_Rx | USART_Mode_Tx;
USART_Init(USART2, &USART_InitStructure); // USART2 config
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_Rx | USART_Mode_Tx;
USART_Init(USART1, &USART_InitStructure); // USART1 config
DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)&USART2->DT;
DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)NULL;
DMA_InitStructure.DMA_Direction = DMA_DIR_PERIPHERALDST;
DMA_InitStructure.DMA_BufferSize = 0;
DMA_InitStructure.DMA_PeripheralInc = DMA_PERIPHERALINC_DISABLE;
DMA_InitStructure.DMA_MemoryInc = DMA_MEMORYINC_ENABLE;
DMA_InitStructure.DMA_PeripheralDataWidth = DMA_PERIPHERALDATAWIDTH_BYTE;
DMA_InitStructure.DMA_MemoryDataWidth = DMA_MEMORYDATAWIDTH_BYTE;
DMA_InitStructure.DMA_Mode = DMA_MODE_NORMAL;
DMA_InitStructure.DMA_Priority = DMA_PRIORITY_HIGH;
DMA_InitStructure.DMA_MTOM = DMA_MEMTOMEM_DISABLE;
DMA_Init(DMA1_Channel7, &DMA_InitStructure);
USART_DMACmd(USART2, USART_DMAReq_Tx, ENABLE);
DMA_ChannelEnable(DMA1_Channel7, ENABLE);
USART_INTConfig(USART1, USART_FLAG_TDE, ENABLE);
USART_INTConfig(USART2, USART_INT_RDNE, ENABLE);
NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
NVIC_InitStructure.NVIC_IRQChannel = USART2_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
//USART_Cmd(USART1, ENABLE); // USART1 enable
USART_Cmd(USART2, ENABLE); // USART2 enable
}
void USART2_IRQHandler(void)
{
if(USART_GetITStatus(USART2, USART_INT_RDNE) != RESET)
{
uint8_t data = USART_ReceiveData(USART2);
queue_push(data);
USART_ClearITPendingBit(USART2, USART_INT_RDNE);
//printf("%d\n", data);
}
}
void usart2_send_dma(uint8_t *buf, uint16_t len)
{
while(DMA_GetCurrDataCounter(DMA1_Channel7) != 0);
DMA_ClearITPendingBit(DMA1_FLAG_TC7);
DMA_ChannelEnable(DMA1_Channel7, DISABLE);
DMA_SetCurrDataCounter(DMA1_Channel7, len);
DMA1_Channel7->CMBA = (uint32_t)buf;
DMA_ChannelEnable(DMA1_Channel7, ENABLE);
}使用的是串口2的dma发送，要发送到大彩的串口屏，现在想要知道debug中的模拟串口要怎么配置，有大佬知道吗
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