這是串口設定的.c檔案
u8 USART_RX_BUF[64];
u8 USART_RX_STA=0;
void uart_init(u32 bound){
GPIO_InitTypeDef GPIO_InitStructure;
USART_InitTypeDef USART_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1|RCC_APB2Periph_GPIOA|RCC_APB2Periph_AFIO, ENABLE);
//USART1_TX PA.9
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOA, &GPIO_InitStructure);
//USART1_RX PA.10
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOA, &GPIO_InitStructure);
//Usart1 NVIC
NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=2 ;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 2; //
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure); //USART1
//USART
USART_DeInit(USART1);
USART_InitStructure.USART_BaudRate = bound;//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_Rx | USART_Mode_Tx;
USART_Init(USART1, &USART_InitStructure);
USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);//
USART_Cmd(USART1, ENABLE);
}
void uart2_init(u32 bound)
{
GPIO_InitTypeDef GPIO_InitStructure;
USART_InitTypeDef USART_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_AFIO, ENABLE);
// Configure USART2 Tx(PB2)
GPIO_InitStructure.GPIO_Pin=GPIO_Pin_2;
GPIO_InitStructure.GPIO_Mode=GPIO_Mode_AF_PP;
GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;
GPIO_Init(GPIOA,&GPIO_InitStructure);//
// Configure USART2 Rx(PB3)
GPIO_InitStructure.GPIO_Pin=GPIO_Pin_3;
GPIO_InitStructure.GPIO_Mode=GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOA,&GPIO_InitStructure);//
USART_DeInit(USART2);
USART_InitStructure.USART_BaudRate = bound;
USART_InitStructure.USART_HardwareFlowControl=USART_HardwareFlowControl_None;
USART_InitStructure.USART_Mode=USART_Mode_Tx|USART_Mode_Rx;
USART_InitStructure.USART_Parity=USART_Parity_No;
USART_InitStructure.USART_StopBits=USART_StopBits_1;
USART_InitStructure.USART_WordLength=USART_WordLength_8b;
USART_Init(USART2,&USART_InitStructure);//
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);
NVIC_InitStructure.NVIC_IRQChannel=USART2_IRQn;
NVIC_InitStructure.NVIC_IRQChannelSubPriority=3;
NVIC_InitStructure.NVIC_IRQChannelCmd=ENABLE;
NVIC_Init(&NVIC_InitStructure);
USART_Cmd(USART2,ENABLE);//
USART_ITConfig(USART2, USART_IT_RXNE, ENABLE);//
}
int16_t YAW=0,PITCH=0,ROLL=0;
uint8_t flag=0;
void USART1_IRQHandler(void) //
{
static uint8_t k=0,rebuf[8]={0};
if(USART_GetITStatus(USART1, USART_IT_RXNE) != RESET)
{
rebuf[k++] =USART_ReceiveData(USART1); //
if(!(rebuf[0]==0xaa))//
{
k=0;
rebuf[0]=0;
}
if(k==8)//
{
if(rebuf[7]==0x55)//
{
YAW=(rebuf[1]<<8|rebuf[2]);//
PITCH=(rebuf[3]<<8|rebuf[4]);
ROLL=(rebuf[5]<<8|rebuf[6]);
flag=1;
}
k=0;//
}
}
}
void USART2_IRQHandler(void)
{
static uint8_t i=0,reuf[8]={0};
reuf[i++]=USART_ReceiveData(USART2);
USART_SendData(USART1,reuf[0]);
USART_SendData(USART1,reuf[1]);
USART_SendData(USART1,reuf[2]);
USART_SendData(USART1,reuf[3]);
USART_SendData(USART1,reuf[4]);
USART_SendData(USART1,reuf[5]);
USART_SendData(USART1,reuf[6]);
USART_SendData(USART1,reuf[7]);
}
主函式
void dis_play(int16_t num,u8 n)
{
if(num<0)
{
num=-num;
USART_SendData(USART1,'-');
}
else
USART_SendData(USART1,'+');
//if(n)
USART_SendData(USART1,0x30|(num/10000));
USART_SendData(USART1,0x30|(num%10000/1000));
USART_SendData(USART1,0x30|(num%1000/100));
USART_SendData(USART1,0x2e);
USART_SendData(USART1,0x30|(num%100/10));
USART_SendData(USART1,0x30|(num%10));
USART_SendData(USART1,',');
}
int main(void)
{
u8 t;
u8 len;
static u8 times=0;
SystemInit();//
delay_init(72); //
NVIC_Configuration();//
uart_init(115200);//115200
uart2_init(9600);
USART_SendData(USART1,0xa5);
USART_SendData(USART1,0x51);//
while(1)
{
if(flag==0)
{
USART_SendData(USART1,0xa5);
USART_SendData(USART1,0x51);//
}
delay_ms(10);
// if(times==0)
// {
// times=1;//
// USART_SendData(USART1,0xa5);
// USART_SendData(USART1,0x52);//
// }
if(flag==1)
{
flag=0;
USART_SendData(USART2,'#');
USART_SendData(USART2,'Y');
USART_SendData(USART2,'P');
USART_SendData(USART2,'R');
USART_SendData(USART2,'=');
dis_play(YAW,1);
dis_play(PITCH,0);
dis_play(ROLL,0);
USART_SendData(USART2,0X0d);
USART_SendData(USART2,0X0a);
}
}
}
有大佬能幫忙看看嘛
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標籤：單片機/工控