107 lines
3.1 KiB
C
107 lines
3.1 KiB
C
#include "bt.h"
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char RxPacket[17];
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unsigned char flag;
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char open[] = "o";
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char close[] = "c";
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void uart1_init(u32 bound)
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{
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//GPIO端口设置
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GPIO_InitTypeDef GPIO_InitStructure;
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USART_InitTypeDef USART_InitStructure;
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NVIC_InitTypeDef NVIC_InitStructure;
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RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA,ENABLE);//使能UGPIOA时钟
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RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1,ENABLE);//使能USART1时钟
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//USART1_TX
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GPIO_InitStructure.GPIO_Pin=GPIO_Pin_3;//PA9
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GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;
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GPIO_InitStructure.GPIO_Mode=GPIO_Mode_AF_PP;//复用推挽输出
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GPIO_Init(GPIOB,&GPIO_InitStructure);
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//USART1_RX
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GPIO_InitStructure.GPIO_Pin=GPIO_Pin_4;//PA10
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GPIO_InitStructure.GPIO_Mode=GPIO_Mode_IN_FLOATING;//浮空输入
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GPIO_Init(GPIOB,&GPIO_InitStructure);
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//Usart1 NVIC 配置
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NVIC_InitStructure.NVIC_IRQChannel=USART1_IRQn;
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NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=0 ;//抢占优先级
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NVIC_InitStructure.NVIC_IRQChannelSubPriority=1; //子优先级
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NVIC_InitStructure.NVIC_IRQChannelCmd=ENABLE; //IRQ通道使能
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NVIC_Init(&NVIC_InitStructure); //根据指定的参数初始化VIC寄存器
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//USART 初始化设置
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USART_InitStructure.USART_BaudRate=bound;//串口波特率
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USART_InitStructure.USART_WordLength=USART_WordLength_8b;//字长为8位数据格式
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USART_InitStructure.USART_StopBits=USART_StopBits_1;//一个停止位
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USART_InitStructure.USART_Parity=USART_Parity_No;//无奇偶校验位
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USART_InitStructure.USART_HardwareFlowControl=USART_HardwareFlowControl_None;//无硬件数据流控制
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USART_InitStructure.USART_Mode=USART_Mode_Rx|USART_Mode_Tx; //收发模式
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USART_Init(USART1,&USART_InitStructure); //初始化串口1
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USART_ITConfig(USART1,USART_IT_RXNE,ENABLE);//开启串口接受中断
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USART_ITConfig(USART1,USART_IT_IDLE,ENABLE);
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USART_Cmd(USART1,ENABLE); //使能串口1
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}
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void BT_Send(char *string)
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{
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flag=0;
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printf("%s",string);
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while(flag==0);
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}
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void BT_Init(void)
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{
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uart1_init(115200);
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BT_Send("AT+BAUD8");
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BT_Send("AT");
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BT_Send("AT+VERSION");
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BT_Send("AT+NAMEJOJO");
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BT_Send("AT+PIN1234");
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OLED_ShowString(3,1,"OK");
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}
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int BT_Judge(void)
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{
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if(strcmp(RxPacket,open))
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return 1;
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else
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return 0;
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}
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/**************************************************************************
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Function: Receive interrupt function
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Input : none
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Output : none
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函数功能：串口1接收中断
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入口参数：无
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返回 值：无
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**************************************************************************/
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void USART1_IRQHandler(void)
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{
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static unsigned char i=0;
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unsigned char clear;
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if(USART_GetITStatus(USART1,USART_IT_RXNE)!=RESET)
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{
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RxPacket[i++]=USART_ReceiveData(USART1);
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USART_ClearITPendingBit(USART1,USART_IT_RXNE);
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}
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else if((USART_GetITStatus(USART1,USART_IT_IDLE)!=RESET))
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{
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RxPacket[16]=0x00;
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OLED_ShowString(2,1,RxPacket);
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i=0;
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memset(RxPacket,' ',17);
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clear=USART1->SR;
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clear=USART1->DR;
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flag=1;
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}
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}
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int fputc(int ch,FILE *f)
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{
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while((USART1->SR&0X40)==0);
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USART1->DR=(unsigned char)ch;
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return ch;
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}
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