本工程实现了在显示屏上显示一张照片并在照片上以数码管格式显示当前时间，图片大小为128*128；时间为24小时进制的；使用WIFI串口接收数据FF21:10 可把时间更改为21点10分。
本工程使用的处理芯片为stm32f103rct6，显示屏芯片为ST7735S，WIFI模块为HC-25串口WIFI；
主要流程1显示屏的驱动程序编写，添加GUI显示库、Font.h来实现字符、汉字、图片的显示。
WIFI模块使用的是广州汇承HC-25串口WIFI模块，通过使用官方给的HC-25助手（app）更改时间。
下边介绍第一部分代码1用屏幕显示一张照片.
从上而下看代码只看 -> 指的代码
showimage(gImage_1);//主函数中调用此函数即可生成一张照片
const unsigned char gImage_1[32768];
//存储的是生成的照片的数组
void showimage(const unsigned char *p)
{//显示128*128 图片
int i;
unsigned char picH,picL;
Lcd_Clear(WHITE); //清屏 ->1
Lcd_SetRegion(0,0+1+1,127,127+1+1);
for(i=0;i<128*128;i++)
{
picL=*(p+i*2); //数据低位在前
picH=*(p+i*2+1);
LCD_WriteData_16Bit(picH<<8|picL);
}
}
}
//->1全屏清屏函数
void Lcd_Clear(u16 Color)
{
unsigned int i,m;
Lcd_SetRegion(0,0,X_MAX_PIXEL-1,Y_MAX_PIXEL-1);//->2
Lcd_WriteIndex(0x2C);
for(i=0;i<X_MAX_PIXEL;i++)
for(m=0;m<Y_MAX_PIXEL;m++)
{
LCD_WriteData_16Bit(Color);
}
}
//->2设置lcd显示区域，在此区域写点数据自动换行
void Lcd_SetRegion(u16 x_start,u16 y_start,u16 x_end,u16 y_end)
{
Lcd_WriteIndex(0x2a);//->3
Lcd_WriteData(0x00);
Lcd_WriteData(x_start+2);
Lcd_WriteData(0x00);
Lcd_WriteData(x_end+2);
Lcd_WriteIndex(0x2b);
Lcd_WriteData(0x00);
Lcd_WriteData(y_start+1);
Lcd_WriteData(0x00);
Lcd_WriteData(y_end+1);
Lcd_WriteIndex(0x2c);
}
//->3写一个指令
void Lcd_WriteIndex(u8 Index)
{
//SPI 写命令时序开始
LCD_CS_CLR;
LCD_RS_CLR;
SPI_WriteData(Index);//->4
LCD_CS_SET;
}
//->4向lcd写一个8位的数据
void SPI_WriteData(u8 Data){
unsigned char i=0;
for(i=8;i>0;i--)
{
if(Data&0x80){
LCD_SDA_SET; //输出数据
}
else{
LCD_SDA_CLR;
}
LCD_SCL_CLR;
LCD_SCL_SET;
Data<<=1;
}
}
LCD_SDA_SET 就是让对应的数据引脚输出高
LCD_SDA_CLR 就是让对应的数据引脚输出低
//输出数据1和0
#define LCD_SDA_SET do{ HAL_GPIO_WritePin(SDA_GPIO_Port,SDA_Pin,GPIO_PIN_SET);}while(0);
#define LCD_SDA_CLR do{ HAL_GPIO_WritePin(SDA_GPIO_Port,SDA_Pin,GPIO_PIN_RESET);}while(0);
LCD_SCL_CLR;时钟引脚输出低电平
LCD_SCL_SET;时钟引脚输出高电平
//时钟信号1和0
#define LCD_SCL_SET do{ HAL_GPIO_WritePin(SCl_GPIO_Port,SCl_Pin,GPIO_PIN_SET);}while(0);
#define LCD_SCL_CLR do{ HAL_GPIO_WritePin(SCl_GPIO_Port,SCl_Pin,GPIO_PIN_RESET);}while(0);
showimage()中调用的函数就只有这个没有介绍了
//向液晶屏写一个16位数据
void LCD_WriteData_16Bit(u16 Data)
{
LCD_CS_CLR;
LCD_RS_SET;
SPI_WriteData(Data>>8); //写入高8位数据
SPI_WriteData(Data); //写入低8位数据
LCD_CS_SET;
}
接下来介绍一下显示数码管数字的代码
//数码管显示 第一个为x轴位置y轴位置 参数3数码管颜色，参数4显示的值
void Gui_DrawFont_Num32(u16 x, u16 y, u16 bc, u16 num)
{
unsigned char i,j,k,c;
for(i=0;i<32;i++)
{
for(j=0;j<4;j++)
{
c=*(sz32+num*32*4+i*4+j);
for (k=0;k<8;k++)
{
if(c&(0x80>>k)) Gui_DrawPoint(x+j*8+k,y+i,fc);
}
}
}
}
//数码管字体 % ℃
const unsigned char sz32[]={
#if USE_ONCHIP_FLASH_FONT
//"0",
0x00,0x00,0x00,0x00,0x00,0x1F,0xE0,0x00,0x00,0x3F,0xF0,0x00,0x00,0x3F,0xF0,0x00,0x00,0x1F,0xE0,0x00,0x01,0x80,0x06,0x00,0x03,0xC0,0x0F,0x00,0x03,0xC0,0x0F,0x00,0x03,0xC0,0x0F,0x00,0x03,0xC0,0x0F,0x00,0x03,0xC0,0x0F,0x00,0x03,0xC0,0x0F,0x00,0x03,0xC0,0x0F,0x00,0x03,0xC0,0x0F,0x00,0x03,0x00,0x03,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,0x00,0x03,0x00,0x03,0xC0,0x0F,0x00,0x03,0xC0,0x0F,0x00,0x03,0xC0,0x0F,0x00,0x03,0xC0,0x0F,0x00,0x03,0xC0,0x0F,0x00,0x03,0xC0,0x0F,0x00,0x03,0xC0,0x0F,0x00,0x03,0xC0,0x0F,0x00,0x01,0x80,0x06,0x00,0x00,0x1F,0xE0,0x00,0x00,0x3F,0xF0,0x00,0x00,0x3F,0xF0,0x00,0x00,0x1F,0xE0,0x00,
//"1",
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x00,0x00,0x01,0x80,0x00,0x00,0x03,0x80,0x00,0x00,0x07,0x80,0x00,0x00,0x07,0x80,0x00,0x00,0x07,0x80,0x00,0x00,0x07,0x80,0x00,0x00,0x07,0x80,0x00,0x00,0x07,0x80,0x00,0x00,0x07,0x80,0x00,0x00,0x07,0x80,0x00,0x00,0x07,0x80,0x00,0x00,0x01,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x80,0x00,0x00,0x07,0x80,0x00,0x00,0x07,0x80,0x00,0x00,0x07,0x80,0x00,0x00,0x07,0x80,0x00,0x00,0x07,0x80,0x00,0x00,0x07,0x80,0x00,0x00,0x07,0x80,0x00,0x00,0x07,0x80,0x00,0x00,0x07,0x80,0x00,0x00,0x03,0x80,0x00,0x00,0x01,0x80,0x00,0x00,0x00,0x80,0x00,0x00,0x00,0x00,0x00,
//"2",
0x00,0x00,0x00,0x00,0x00,0x1F,0xE0,0x00,0x00,0x3F,0xF0,0x00,0x00,0xFF,0xF0,0x00,0x01,0xFF,0xE0,0x00,0x00,0x00,0x06,0x00,0x00,0x00,0x0F,0x00,0x00,0x00,0x0F,0x00,0x00,0x00,0x0F,0x00,0x00,0x00,0x0F,0x00,0x00,0x00,0x0F,0x00,0x00,0x00,0x0F,0x00,0x00,0x00,0x0F,0x00,0x00,0x00,0x0F,0x00,0x00,0x1F,0xE3,0x00,0x00,0x7F,0xF8,0x00,0x00,0x7F,0xF8,0x00,0x00,0x1F,0xE0,0x00,0x03,0x00,0x00,0x00,0x03,0xC0,0x00,0x00,0x03,0xC0,0x00,0x00,0x03,0xC0,0x00,0x00,0x03,0xC0,0x00,0x00,0x03,0xC0,0x00,0x00,0x03,0xC0,0x00,0x00,0x03,0xC0,0x00,0x00,0x03,0xC0,0x00,0x00,0x01,0x80,0x00,0x00,0x00,0x1F,0xF0,0x00,0x00,0x3F,0xF8,0x00,0x00,0x3F,0xFC,0x00,0x00,0x1F,0xFE,0x00,
//"3",
0x00,0x00,0x00,0x00,0x03,0xFF,0x80,0x00,0x01,0xFF,0xC0,0x00,0x00,0xFF,0xC0,0x00,0x00,0x7F,0x80,0x00,0x00,0x00,0x18,0x00,0x00,0x00,0x3C,0x00,0x00,0x00,0x3C,0x00,0x00,0x00,0x3C,0x00,0x00,0x00,0x3C,0x00,0x00,0x00,0x3C,0x00,0x00,0x00,0x3C,0x00,0x00,0x00,0x3C,0x00,0x00,0x00,0x3C,0x00,0x00,0x7F,0x8C,0x00,0x01,0xFF,0xE0,0x00,0x01,0xFF,0xF0,0x00,0x00,0x7F,0x80,0x00,0x00,0x00,0x0C,0x00,0x00,0x00,0x3C,0x00,0x00,0x00,0x3C,0x00,0x00,0x00,0x3C,0x00,0x00,0x00,0x3C,0x00,0x00,0x00,0x3C,0x00,0x00,0x00,0x3C,0x00,0x00,0x00,0x3C,0x00,0x00,0x00,0x3C,0x00,0x00,0x00,0x18,0x00,0x00,0x7F,0x80,0x00,0x00,0xFF,0xC0,0x00,0x01,0xFF,0xC0,0x00,0x03,0xFF,0x80,0x00,
//"4",
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x02,0x00,0x01,0x00,0x03,0x00,0x03,0x00,0x03,0x80,0x07,0x00,0x03,0xC0,0x0F,0x00,0x03,0xC0,0x0F,0x00,0x03,0xC0,0x0F,0x00,0x03,0xC0,0x0F,0x00,0x03,0xC0,0x0F,0x00,0x03,0xC0,0x0F,0x00,0x03,0xC0,0x0F,0x00,0x03,0xC0,0x0F,0x00,0x03,0xC0,0x0F,0x00,0x03,0x1F,0xE3,0x00,0x00,0x7F,0xF8,0x00,0x00,0x7F,0xFC,0x00,0x00,0x1F,0xE0,0x00,0x00,0x00,0x03,0x00,0x00,0x00,0x0F,0x00,0x00,0x00,0x0F,0x00,0x00,0x00,0x0F,0x00,0x00,0x00,0x0F,0x00,0x00,0x00,0x0F,0x00,0x00,0x00,0x0F,0x00,0x00,0x00,0x0F,0x00,0x00,0x00,0x0F,0x00,0x00,0x00,0x0F,0x00,0x00,0x00,0x07,0x00,0x00,0x00,0x03,0x00,0x00,0x00,0x01,0x00,0x00,0x00,0x00,0x00,
//"5",
0x00,0x00,0x00,0x00,0x00,0x1F,0xFC,0x00,0x00,0x3F,0xF8,0x00,0x00,0x3F,0xF0,0x00,0x00,0x1F,0xE0,0x00,0x01,0x80,0x00,0x00,0x03,0xC0,0x00,0x00,0x03,0xC0,0x00,0x00,0x03,0xC0,0x00,0x00,0x03,0xC0,0x00,0x00,0x03,0xC0,0x00,0x00,0x03,0xC0,0x00,0x00,0x03,0xC0,0x00,0x00,0x03,0xC0,0x00,0x00,0x03,0x1F,0xE0,0x00,0x00,0x7F,0xF8,0x00,0x00,0x7F,0xF8,0x00,0x00,0x1F,0xE0,0x00,0x00,0x00,0x03,0x00,0x00,0x00,0x0F,0x00,0x00,0x00,0x0F,0x00,0x00,0x00,0x0F,0x00,0x00,0x00,0x0F,0x00,0x00,0x00,0x0F,0x00,0x00,0x00,0x0F,0x00,0x00,0x00,0x0F,0x00,0x00,0x00,0x0F,0x00,0x00,0x00,0x06,0x00,0x00,0x3F,0xE0,0x00,0x00,0x7F,0xF0,0x00,0x00,0xFF,0xF0,0x00,0x01,0xFF,0xE0,0x00,
//"6",
0x00,0x00,0x00,0x00,0x00,0x1F,0xFC,0x00,0x00,0x3F,0xF8,0x00,0x00,0x3F,0xF0,0x00,0x00,0x1F,0xE0,0x00,0x01,0x80,0x00,0x00,0x03,0xC0,0x00,0x00,0x03,0xC0,0x00,0x00,0x03,0xC0,0x00,0x00,0x03,0xC0,0x00,0x00,0x03,0xC0,0x00,0x00,0x03,0xC0,0x00,0x00,0x03,0xC0,0x00,0x00,0x03,0xC0,0x00,0x00,0x03,0x1F,0xE0,0x00,0x00,0x7F,0xF8,0x00,0x00,0x7F,0xFC,0x00,0x00,0x1F,0xE0,0x00,0x03,0x00,0x03,0x00,0x03,0xC0,0x0F,0x00,0x03,0xC0,0x0F,0x00,0x03,0xC0,0x0F,0x00,0x03,0xC0,0x0F,0x00,0x03,0xC0,0x0F,0x00,0x03,0xC0,0x0F,0x00,0x03,0xC0,0x0F,0x00,0x03,0xC0,0x0F,0x00,0x01,0x80,0x06,0x00,0x00,0x1F,0xE0,0x00,0x00,0x3F,0xF0,0x00,0x00,0x3F,0xF0,0x00,0x00,0x1F,0xE0,0x00,
//"7",
0x00,0x00,0x00,0x00,0x07,0xFF,0xE0,0x00,0x03,0xFF,0xC0,0x00,0x01,0xFF,0x88,0x00,0x00,0xFF,0x18,0x00,0x00,0x00,0x38,0x00,0x00,0x00,0x78,0x00,0x00,0x00,0x78,0x00,0x00,0x00,0x78,0x00,0x00,0x00,0x78,0x00,0x00,0x00,0x78,0x00,0x00,0x00,0x78,0x00,0x00,0x00,0x78,0x00,0x00,0x00,0x78,0x00,0x00,0x00,0x18,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x18,0x00,0x00,0x00,0x78,0x00,0x00,0x00,0x78,0x00,0x00,0x00,0x78,0x00,0x00,0x00,0x78,0x00,0x00,0x00,0x78,0x00,0x00,0x00,0x78,0x00,0x00,0x00,0x78,0x00,0x00,0x00,0x78,0x00,0x00,0x00,0x78,0x00,0x00,0x00,0x38,0x00,0x00,0x00,0x18,0x00,0x00,0x00,0x08,0x00,0x00,0x00,0x00,0x00,
//"8",
0x00,0x00,0x00,0x00,0x00,0x1F,0xE0,0x00,0x00,0x3F,0xF0,0x00,0x00,0x3F,0xF0,0x00,0x00,0x1F,0xE0,0x00,0x01,0x80,0x06,0x00,0x03,0xC0,0x0F,0x00,0x03,0xC0,0x0F,0x00,0x03,0xC0,0x0F,0x00,0x03,0xC0,0x0F,0x00,0x03,0xC0,0x0F,0x00,0x03,0xC0,0x0F,0x00,0x03,0xC0,0x0F,0x00,0x03,0xC0,0x0F,0x00,0x03,0x1F,0xE3,0x00,0x00,0x7F,0xF8,0x00,0x00,0x7F,0xFC,0x00,0x00,0x1F,0xE0,0x00,0x03,0x00,0x03,0x00,0x03,0xC0,0x0F,0x00,0x03,0xC0,0x0F,0x00,0x03,0xC0,0x0F,0x00,0x03,0xC0,0x0F,0x00,0x03,0xC0,0x0F,0x00,0x03,0xC0,0x0F,0x00,0x03,0xC0,0x0F,0x00,0x03,0xC0,0x0F,0x00,0x01,0x80,0x06,0x00,0x00,0x1F,0xE0,0x00,0x00,0x3F,0xF0,0x00,0x00,0x3F,0xF0,0x00,0x00,0x1F,0xE0,0x00,
//"9",
0x00,0x00,0x00,0x00,0x00,0x1F,0xE0,0x00,0x00,0x3F,0xF0,0x00,0x00,0x3F,0xF0,0x00,0x00,0x1F,0xE0,0x00,0x01,0x80,0x06,0x00,0x03,0xC0,0x0F,0x00,0x03,0xC0,0x0F,0x00,0x03,0xC0,0x0F,0x00,0x03,0xC0,0x0F,0x00,0x03,0xC0,0x0F,0x00,0x03,0xC0,0x0F,0x00,0x03,0xC0,0x0F,0x00,0x03,0xC0,0x0F,0x00,0x03,0x1F,0xE3,0x00,0x00,0x7F,0xF8,0x00,0x00,0x7F,0xFC,0x00,0x00,0x1F,0xE0,0x00,0x00,0x00,0x03,0x00,0x00,0x00,0x0F,0x00,0x00,0x00,0x0F,0x00,0x00,0x00,0x0F,0x00,0x00,0x00,0x0F,0x00,0x00,0x00,0x0F,0x00,0x00,0x00,0x0F,0x00,0x00,0x00,0x0F,0x00,0x00,0x00,0x0F,0x00,0x00,0x00,0x06,0x00,0x00,0x1F,0xE0,0x00,0x00,0x3F,0xF0,0x00,0x00,0x7F,0xF0,0x00,0x00,0xFF,0xE0,0x00,
//".",
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x78,0x00,0x00,0x00,0x78,0x00,0x00,0x00,0x78,0x00,0x00,0x00,0x78,0x00,0x00,0x00,0x78,0x00,0x00,0x00,0x78,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
//":",
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x07,0x00,0x00,0x00,0x0F,0x80,0x00,0x00,0x0F,0x80,0x00,0x00,0x0F,0x80,0x00,0x00,0x07,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x07,0x00,0x00,0x00,0x0F,0x80,0x00,0x00,0x0F,0x80,0x00,0x00,0x0F,0x80,0x00,0x00,0x07,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
//"%",
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x07,0xC0,0x06,0x00,0x0F,0xE0,0x06,0x00,0x00,0x00,0x0C,0x00,0x30,0x18,0x18,0x00,0x30,0x18,0x18,0x00,0x30,0x18,0x30,0x00,0x30,0x18,0x30,0x00,0x30,0x18,0x60,0x00,0x30,0x08,0xC0,0x00,0x07,0xC0,0xC0,0x00,0x0F,0xE0,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x0F,0xE0,0x00,0x06,0x07,0xC0,0x00,0x06,0x30,0x18,0x00,0x0C,0x30,0x18,0x00,0x0C,0x30,0x18,0x00,0x18,0x30,0x18,0x00,0x30,0x30,0x18,0x00,0x30,0x30,0x18,0x00,0x60,0x00,0x00,0x00,0xC0,0x0F,0xE0,0x00,0xC0,0x07,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
//"℃",
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x07,0x00,0xE0,0x00,0x08,0x87,0xFC,0x00,0x08,0x8E,0x03,0x00,0x08,0x98,0x01,0x80,0x07,0x18,0x00,0x80,0x00,0x30,0x00,0x00,0x00,0x30,0x00,0x00,0x00,0x70,0x00,0x00,0x00,0x60,0x00,0x00,0x00,0x60,0x00,0x00,0x00,0x60,0x00,0x00,0x00,0x60,0x00,0x00,0x00,0x60,0x00,0x00,0x00,0x70,0x00,0x00,0x00,0x30,0x00,0x00,0x00,0x30,0x00,0x00,0x00,0x38,0x00,0x00,0x00,0x18,0x01,0x00,0x00,0x0C,0x03,0x00,0x00,0x07,0xFC,0x00,0x00,0x01,0xF0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
//"-",
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x3F,0xF0,0x00,0x00,0x7F,0xF0,0x00,0x00,0x7F,0xE0,0x00,0x00,0xFF,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
#endif
0x00,
};
unsigned char Num[ 16]={0,1,2,3,4,5,6,7,8,9,10,11,12,13,14};
// 0-9显示0-9 10-14显示. : % ℃ -
//画一个点
void Gui_DrawPoint(u16 x,u16 y,u16 Data)
{
Lcd_SetRegion(x,y,x+1,y+1);
LCD_WriteData_16Bit(Data);
}
剩下的就是串口WIFI的代码
把串口就收到的数据解析出时间并设置。
unsigned char Rx_str1[1]; //接收缓存
unsigned char Rx_Buf[10]; //接收缓存10
unsigned char Rx_i=0;
//时间
unsigned char shi_z; //时间小时
unsigned char shi_y;
unsigned char fen_z; //分钟
unsigned char fen_y;
#define huart1 huart2
//把串口1改为串口2 串口1是用来调试注意回调函数里的USART2的更改
char flag=0;
void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart){
if(huart->Instance==USART2){
//把收到的数据放的一个内存里
if(Rx_str1[0]=='F'){
Rx_i=0; flag=1;
}
if(flag==1){
Rx_Buf[Rx_i++]=Rx_str1[0];
if(Rx_i==6){
Rx_i=0;
HAL_UART_Transmit(&huart1,Rx_Buf,sizeof(Rx_Buf),1000);
char T_i=0;
shi_z=Rx_Buf[++T_i]; shi_y=Rx_Buf[++T_i];
T_i++;//跳过":"
fen_z=Rx_Buf[++T_i]; fen_y=Rx_Buf[++T_i];
//把字符转为数字
shi_z=shi_z-'0';shi_y=shi_y-'0';fen_z=fen_z-'0';fen_y=fen_y-'0';
HAL_UART_Transmit(&huart1,&shi_z,sizeof(shi_z),1000);
HAL_UART_Transmit(&huart1,&shi_y,sizeof(shi_y),1000);
HAL_UART_Transmit(&huart1,&fen_z,sizeof(fen_z),1000);
HAL_UART_Transmit(&huart1,&fen_y,sizeof(fen_y),1000);
j=shi_z*10+shi_y;
i=fen_z*10+fen_y;
showimage(gImage_1);//图片显示示例
Gui_DrawFont_Num32(0,95,shenfense,GRAY0,Num[j/10]);
Gui_DrawFont_Num32(25,95,shenfense,GRAY0,Num[j%10]);
Gui_DrawFont_Num32(50,95,RED,GRAY0,Num[11]);
Gui_DrawFont_Num32(75,95,shenfense,GRAY0,Num[i/10]);
Gui_DrawFont_Num32(100,95,shenfense,GRAY0,Num[i%10]);
flag=0;
}
}
HAL_UART_Receive_IT(&huart1,Rx_str1, 1); //打开串口1的接收中断如果接受到进入接收中断处理函数
}
}
定时器中的代码
unsigned int i=0, j=0,t=0;
void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim){
if(htim->Instance==TIM6){
//1s 进入一次中断
t++;LED_R_T;
if(t==60){t=0;i++;
if(i==60){
showimage1(gImage_1);
Gui_DrawFont_Num32(0,95,shenfense,GRAY0,Num[j/10]);
Gui_DrawFont_Num32(25,95,shenfense,GRAY0,Num[j%10]);
Gui_DrawFont_Num32(50,95,RED,GRAY0,Num[11]);
Gui_DrawFont_Num32(75,95,shenfense,GRAY0,Num[i/10]);
Gui_DrawFont_Num32(100,95,shenfense,GRAY0,Num[i%10]);
i=0;j++;
if(j==24)j=0;
}
}
}
if(htim->Instance==TIM7){
//100ms 优先级比TIM6低
LED_B_T;
}
}