武汉理工大学智能仪器课程设计
{ x = x; }
//重定义fputc函数
int fputc(int ch, FILE *f) { while((USART1->SR&0X40)==0);//循环发送,直到发送完毕 USART1->DR = (u8) ch; return ch; }
#endif
/*使用microLib的方法*/ /*
int fputc(int ch, FILE *f) { USART_SendData(USART1, (uint8_t) ch); while (USART_GetFlagStatus(USART1, USART_FLAG_TC) == RESET) {}
return ch; }
int GetKey (void) {
while (!(USART1->SR & USART_FLAG_RXNE));
return ((int)(USART1->DR & 0x1FF)); } */
#if EN_USART1_RX //如果使能了接收 //串口1中断服务程序
//注意,读取USARTx->SR能避免莫名其妙的错误
u8 USART_RX_BUF[USART_REC_LEN]; //接收缓冲,最大USART_REC_LEN个字节. //接收状态 //bit15， 接收完成标志 //bit14， 接收到0x0d
//bit13~0， 接收到的有效字节数目
u16 USART_RX_STA=0; //接收状态标记
void uart_init(u32 bound){ //GPIO端口设置
GPIO_InitTypeDef GPIO_InitStructure; USART_InitTypeDef USART_InitStructure; NVIC_InitTypeDef NVIC_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1|RCC_APB2Periph_GPIOA, ENABLE);//使能USART1，GPIOA时钟 //USART1_TX PA.9
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9; //PA.9 GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; //复用推挽输出 GPIO_Init(GPIOA, &GPIO_InitStructure);
//USART1_RX PA.10
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;//浮空输入 GPIO_Init(GPIOA, &GPIO_InitStructure);
//Usart1 NVIC 配置
NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn; NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=3 ;//抢占优先级3 NVIC_InitStructure.NVIC_IRQChannelSubPriority = 3; //子优先级3 NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //IRQ通道使能 NVIC_Init(&NVIC_InitStructure); //根据指定的参数初始化VIC寄存器
//USART 初始化设置
24 / 44
武汉理工大学智能仪器课程设计
USART_InitStructure.USART_BaudRate = bound;//一般设置为9600;
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 USART_InitStructure.USART_Parity = USART_Parity_No;//无奇偶校验位
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;//无硬件数据流控制
USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx; //收发模式
USART_Init(USART1, &USART_InitStructure); //初始化串口 USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);//开启中断 USART_Cmd(USART1, ENABLE); //使能串口
}
void USART1_IRQHandler(void) //串口1中断服务程序 { u8 Res;
#ifdef OS_TICKS_PER_SEC //如果时钟节拍数定义了,说明要使用ucosII了. OSIntEnter(); #endif if(USART_GetITStatus(USART1, USART_IT_RXNE) != RESET) //接收中断(接收到的数据必须是0x0d 0x0a结尾) { Res =USART_ReceiveData(USART1);//(USART1->DR); //读取接收到的数据 if((USART_RX_STA&0x8000)==0)//接收未完成 { if(USART_RX_STA&0x4000)//接收到了0x0d { if(Res!=0x0a)USART_RX_STA=0;//接收错误,重新开始 else USART_RX_STA|=0x8000; //接收完成了 } else //还没收到0X0D { if(Res==0x0d)USART_RX_STA|=0x4000; else { USART_RX_BUF[USART_RX_STA&0X3FFF]=Res ; USART_RX_STA++; if(USART_RX_STA>(USART_REC_LEN-1))USART_RX_STA=0;//接收数据错误,重新开始接收 } } } }
#ifdef OS_TICKS_PER_SEC //如果时钟节拍数定义了,说明要使用ucosII了. OSIntExit(); #endif } #endif
6：LCD液晶屏初始化程序
#include \#include\#include\//#include \#include \
uint colors[]= {
0xf800,0x07e0,0x001f,0xffe0,0x0000,0x07ff,0xf81f,0xffff //颜色数据
25 / 44
武汉理工大学智能仪器课程设计
};
void LCD_IOinit(void) { // RCC->APB2ENR|=1<<3; //使能PORTB时钟 // //RCC->APB2ENR|=1<<2;
// A
//
RCC->APB2ENR|=1<<5;
// D
// // // //PB高八位 （P00~P07） // GPIOB->CRH&=0X00000000; // GPIOB->CRH|=0X33333333; //推挽输出 // GPIOB->ODR|=0XFFFFFFFF;
//PB.5输出高
// // GPIOB->CRL&=0XFFFFF000; // GPIOB->CRL|=0X00000333;
//推挽输出
// // //PA低八位 （P10 ~ P17） // GPIOD->CRL&=0X00000000; // GPIOD->CRL|=0X33333333; //推挽输出 // GPIOD->ODR|=0XFFFFFFFF;
//PE.5输出高
//PA8~PA11
// GPIOD->CRH&=0XFFFF0FF0; //
GPIOD->CRH|=0X00003003;
//推挽输出
GPIO_InitTypeDef GPIO_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB|RCC_APB2Periph_GPIOD, ENABLE); GPIO_InitStructure.GPIO_Pin = GPIO_Pin_All; //所有GPIO为同一类型端口 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; //推挽输出
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; //输出的最大频率为50HZ GPIO_Init(GPIOD, &GPIO_InitStructure); //初始化GPIOD端口 GPIO_Init(GPIOB, &GPIO_InitStructure); //初始化GPIOB端口
GPIO_Write(GPIOD,0xffff); //将GPIOD 16个端口全部置为高电平 GPIO_Write(GPIOB,0xffff); //将GPIOB 16个端口全部置为高电平 }
void LCD_Init(void) {
LCD_rst=1; delayms(50);
LCD_rst=0;
26 / 44
使能PB,PE端口时钟 //武汉理工大学智能仪器课程设计
delayms(50); LCD_rst=1; delayms(50);
LCD_cs=0; //打开片选使能
LCD_Write_COM(0x00,0xF0);
LCD_Write_COM(0x00,0xF4);
LCD_Write_DATA1(0x07); // Power Control 2 LCD_Write_DATA1(0x00); LCD_Write_DATA1(0x00); LCD_Write_DATA1(0x00); LCD_Write_DATA1(0x21); LCD_Write_DATA1(0x47); LCD_Write_DATA1(0x04);
LCD_Write_DATA1(0x5A); // Power Control 1 current consumption STB LCD_Write_DATA1(0x5A);
LCD_Write_COM(0x00,0xF3);
LCD_Write_DATA1(0x00); // Power Control 2 LCD_Write_DATA1(0x00);
LCD_Write_DATA1(0x00); // Power Control 3 BT2-0, DC11-10, DC21-20, DC31-30 LCD_Write_DATA1(0x00);
LCD_Write_COM(0x00,0x11); delayms(50);
LCD_Write_COM(0x00,0xF4); LCD_Write_DATA1(0x07); LCD_Write_DATA1(0x00); LCD_Write_DATA1(0x00); LCD_Write_DATA1(0x00); LCD_Write_DATA1(0x21); LCD_Write_DATA1(0x47); LCD_Write_DATA1(0x01); LCD_Write_DATA1(0x02); LCD_Write_DATA1(0x3F); LCD_Write_DATA1(0xC6); LCD_Write_DATA1(0x05);
27 / 44
