dtu/Core/Src/oled.c

#include "oled.h"
#include "oledfont.h"  	
#include "main.h"

uint8_t OLED_GRAM[144][8];

extern bool interface_work ;

//画点 
//x:0~127
//y:0~63
//t:1 填充 0,清空	
void OLED_DrawPoint(uint8_t x,uint8_t y,uint8_t t)
{
	uint8_t i,m,n;
	i=y/8;
	m=y%8;
	n=1<<m;
	if(t){OLED_GRAM[x][i]|=n;}
	else
	{
		OLED_GRAM[x][i]=~OLED_GRAM[x][i];
		OLED_GRAM[x][i]|=n;
		OLED_GRAM[x][i]=~OLED_GRAM[x][i];
	}
}


//画线
//x1,y1:起点坐标
//x2,y2:结束坐标
void OLED_DrawLine(uint8_t x1,uint8_t y1,uint8_t x2,uint8_t y2,uint8_t mode)
{
	uint16_t t; 
	int xerr=0,yerr=0,delta_x,delta_y,distance;
	int incx,incy,uRow,uCol;
	delta_x=x2-x1; //计算坐标增量 
	delta_y=y2-y1;
	uRow=x1;//画线起点坐标
	uCol=y1;
	if(delta_x>0)incx=1; //设置单步方向 
	else if (delta_x==0)incx=0;//垂直线 
	else {incx=-1;delta_x=-delta_x;}
	if(delta_y>0)incy=1;
	else if (delta_y==0)incy=0;//水平线 
	else {incy=-1;delta_y=-delta_x;}
	if(delta_x>delta_y)distance=delta_x; //选取基本增量坐标轴 
	else distance=delta_y;
	for(t=0;t<distance+1;t++)
	{
		OLED_DrawPoint(uRow,uCol,mode);//画点
		xerr+=delta_x;
		yerr+=delta_y;
		if(xerr>distance)
		{
			xerr-=distance;
			uRow+=incx;
		}
		if(yerr>distance)
		{
			yerr-=distance;
			uCol+=incy;
		}
	}
}
//x,y:圆心坐标
//r:圆的半径
void OLED_DrawCircle(uint8_t x,uint8_t y,uint8_t r)
{
	int a, b,num;
    a = 0;
    b = r;
    while(2 * b * b >= r * r)      
    {
        OLED_DrawPoint(x + a, y - b,1);
        OLED_DrawPoint(x - a, y - b,1);
        OLED_DrawPoint(x - a, y + b,1);
        OLED_DrawPoint(x + a, y + b,1);
 
        OLED_DrawPoint(x + b, y + a,1);
        OLED_DrawPoint(x + b, y - a,1);
        OLED_DrawPoint(x - b, y - a,1);
        OLED_DrawPoint(x - b, y + a,1);
        
        a++;
        num = (a * a + b * b) - r*r;//计算画的点离圆心的距离
        if(num > 0)
        {
            b--;
            a--;
        }
    }
}



void OLED_WR_Byte(uint8_t dat,uint8_t cmd)
{	
	uint8_t i;			  
	if(cmd)
	{
	  OLED_DC_Set();
	}
	else
	  OLED_DC_Clr();
	OLED_CS_Clr();
	for(i=0;i<8;i++)
	{
		OLED_SCL_Clr();
		if(dat&0x80)
		{
		   OLED_SDA_Set();
		}
		else 
		   OLED_SDA_Clr();
		OLED_SCL_Set();
		dat<<=1;   
	}				 		  
	OLED_CS_Set();
	OLED_DC_Set();   	  
}

//反显函数
void OLED_ColorTurn(uint8_t i)
{
	if(i==0)
	{
		OLED_WR_Byte(0xA6,OLED_CMD);//正常显示
	}
	if(i==1)
	{
		OLED_WR_Byte(0xA7,OLED_CMD);//反色显示
	}
}

//屏幕旋转180度
void OLED_DisplayTurn(uint8_t i)
{
	if(i==0)
	{
		OLED_WR_Byte(0xC8,OLED_CMD);//正常显示
		OLED_WR_Byte(0xA1,OLED_CMD);
	}
	if(i==1)
	{
		OLED_WR_Byte(0xC0,OLED_CMD);//反转显示
		OLED_WR_Byte(0xA0,OLED_CMD);
	}
}


//开启OLED显示 
void OLED_DisPlay_On(void)
{
	OLED_WR_Byte(0x8D,OLED_CMD);//电荷泵使能
	OLED_WR_Byte(0x14,OLED_CMD);//开启电荷泵
	OLED_WR_Byte(0xAF,OLED_CMD);//点亮屏幕
}

//关闭OLED显示 
void OLED_DisPlay_Off(void)
{
	OLED_WR_Byte(0x8D,OLED_CMD);//电荷泵使能
	OLED_WR_Byte(0x10,OLED_CMD);//关闭电荷泵
	OLED_WR_Byte(0xAE,OLED_CMD);//关闭屏幕
}



//更新显存到OLED	
void OLED_Refresh(void)
{
	uint8_t i,n;
	for(i=0;i<8;i++)
	{
	   OLED_WR_Byte(0xb0+i,OLED_CMD); //设置行起始地址
	   OLED_WR_Byte(0x02,OLED_CMD);   //设置低列起始地址
	   OLED_WR_Byte(0x10,OLED_CMD);   //设置高列起始地址
	   for(n=0;n<128;n++)
		 OLED_WR_Byte(OLED_GRAM[n][i],OLED_DATA);
  }
}
//清屏函数
void OLED_Clear(void)
{
	uint8_t i,n;
	for(i=0;i<8;i++)
	{
	   for(n=0;n<128;n++)
			{
			 OLED_GRAM[n][i]=0;//清除所有数据
			}
  }
	OLED_Refresh();//更新显示
#ifdef ClearOled
	#if ClearOled == 1
	printf("Clear_OLED\r\n");
	#endif
#endif
}



//在指定位置显示一个字符,包括部分字符
//x:0~127
//y:0~63
//size1:选择字体 6x8/6x12/8x16/12x24
//mode:0,反色显示;1,正常显示
void OLED_ShowChar(uint8_t x,uint8_t y,uint8_t chr,uint8_t size1,uint8_t mode)
{
	uint8_t i,m,temp,size2,chr1;
	uint8_t x0=x,y0=y;
	if(size1==8)size2=6;
	else size2=(size1/8+((size1%8)?1:0))*(size1/2);  //得到字体一个字符对应点阵集所占的字节数
	chr1=chr-' ';  //计算偏移后的值
	for(i=0;i<size2;i++)
	{
		if(size1==8)
			  {temp=asc2_0806[chr1][i];} //调用0806字体
		else if(size1==12)
			  {temp=asc2_1206[chr1][i];} //调用1206字体
		else if(size1==16)
			  {temp=asc2_1608[chr1][i];} //调用1608字体
		else if(size1==24)
			  {temp=asc2_2412[chr1][i];} //调用2412字体
		else return;
		for(m=0;m<8;m++)
		{
			if(temp&0x01)
			{
				OLED_DrawPoint(x,y,mode);
			}
			else 
			{	
				OLED_DrawPoint(x,y,!mode);
			}
			temp>>=1;
			y++;
		}
		x++;
		if((size1!=8)&&((x-x0)==size1/2))
		{x=x0;y0=y0+8;}
		y=y0;
  }
}


//显示字符串
//x,y:起点坐标  
//size1:字体大小 
//*chr:字符串起始地址 
//mode:0,反色显示;1,正常显示
void OLED_ShowString(uint8_t x,uint8_t y,uint8_t *chr,uint8_t size1,uint8_t mode)
{
	while((*chr>=' ')&&(*chr<='~'))//判断是不是非法字符!
	{
		OLED_ShowChar(x,y,*chr,size1,mode);
		if(size1==8)x+=6;
		else x+=size1/2;
		chr++;
  }
}


//m^n
uint32_t OLED_Pow(uint8_t m,uint8_t n)
{
	uint32_t result=1;
	while(n--)
	{
	  result*=m;
	}
	return result;
}



//显示数字
//x,y :起点坐标
//num :要显示的数字
//len :数字的位数
//size:字体大小
//mode:0,反色显示;1,正常显示
void OLED_ShowNum(uint8_t x,uint8_t y,uint32_t num,uint8_t len,uint8_t size1,uint8_t mode)
{
	uint8_t t,temp,m=0;
	if(size1==8)m=2;
	for(t=0;t<len;t++)
	{
		temp=(num/OLED_Pow(10,len-t-1))%10;
			if(temp==0)
			{
				OLED_ShowChar(x+(size1/2+m)*t,y,'0',size1,mode);
      }
			else 
			{
			  OLED_ShowChar(x+(size1/2+m)*t,y,temp+'0',size1,mode);
			}
  }
}




//显示汉字
//x,y:起点坐标
//num:汉字对应的序号
//mode:0,反色显示;1,正常显示
void OLED_ShowChinese(uint8_t x,uint8_t y,uint8_t num,uint8_t size1,uint8_t mode)
{
	uint8_t m,temp;
	uint8_t x0=x,y0=y;
	uint16_t i,size3=(size1/8+((size1%8)?1:0))*size1;  //得到字体一个字符对应点阵集所占的字节数
	for(i=0;i<size3;i++)
	{
		if(size1==16)
				{temp=Hzk1[num][i];}//调用16*16字体
		else if(size1==24)
				{temp=Hzk2[num][i];}//调用24*24字体
		else if(size1==32)       
				{temp=Hzk3[num][i];}//调用32*32字体
		else if(size1==64)
				{temp=Hzk4[num][i];}//调用64*64字体
		else if(size1==12)
				{temp=Hzk5[num][i];}//调用12*12字体
		else if(size1==14)
				{temp=Hzk6[num][i];}//调用14*14字体
		else if(size1==18)
				{temp=Hzk7[num][i];}//调用18*18字体
		else if(size1==15)
				{temp=Hzk8[num][i];}//调用15*15字体
				
		else return;
		for(m=0;m<8;m++)
		{
			if(temp&0x01)OLED_DrawPoint(x,y,mode);
			else OLED_DrawPoint(x,y,!mode);
			temp>>=1;
			y++;
		}
		x++;
		if((x-x0)==size1)
		{x=x0;y0=y0+8;}
		y=y0;
	}
}


//num 显示汉字的个数
//space 每一遍显示的间隔
//mode:0,反色显示;1,正常显示
void OLED_ScrollDisplay(uint8_t num,uint8_t space,uint8_t mode)
{
	uint8_t i,n,t=0,m=0,r;
	while(1)
	{
		if(m==0)
		{
			OLED_ShowChinese(128,24,t,16,mode); //写入一个汉字保存在OLED_GRAM[][]数组中
			t++;
		}
		if(t==num)
			{
				for(r=0;r<16*space;r++)      //显示间隔
				 {
					for(i=1;i<144;i++)
						{
							for(n=0;n<8;n++)
							{
								OLED_GRAM[i-1][n]=OLED_GRAM[i][n];
							}
						}
           OLED_Refresh();
				 }
        t=0;
      }
		m++;
		if(m==16){m=0;}
		for(i=1;i<144;i++)   //实现左移
		{
			for(n=0;n<8;n++)
			{
				OLED_GRAM[i-1][n]=OLED_GRAM[i][n];
			}
		}
		OLED_Refresh();
	}
}


//x,y：起点坐标
//sizex,sizey,图片长宽
//BMP[]：要写入的图片数组
//mode:0,反色显示;1,正常显示
void OLED_ShowPicture(uint8_t x,uint8_t y,uint8_t sizex,uint8_t sizey,uint8_t BMP[],uint8_t mode)
{
	uint16_t j=0;
	uint8_t i,n,temp,m;
	uint8_t x0=x,y0=y;
	sizey=sizey/8+((sizey%8)?1:0);
	for(n=0;n<sizey;n++)
	{
		 for(i=0;i<sizex;i++)
		 {
				temp=BMP[j];
				j++;
				for(m=0;m<8;m++)
				{
					if(temp&0x01)
					{
						OLED_DrawPoint(x,y,mode);
					}
					else 
					{	
						OLED_DrawPoint(x,y,!mode);
					}
					temp>>=1;
					y++;
				}
				x++;
				if((x-x0)==sizex)
				{
					x=x0;
					y0=y0+8;
				}
				y=y0;
     }
	 }
}
//OLED的初始化
void OLED_Init(void)
{
	GPIO_InitTypeDef  GPIO_InitStructure;

	GPIO_InitStructure.Pin = GPIO_PIN_5|GPIO_PIN_7;	 
 	GPIO_InitStructure.Mode = GPIO_MODE_OUTPUT_PP; 		 
	GPIO_InitStructure.Speed = GPIO_SPEED_FREQ_MEDIUM;//速度50MHz
 	HAL_GPIO_Init(GPIOA, &GPIO_InitStructure);	  
 	HAL_GPIO_WritePin(GPIOA,GPIO_PIN_5|GPIO_PIN_7,GPIO_PIN_SET);

	OLED_RES_Clr();
	HAL_Delay(200);
	OLED_RES_Set();
	
	OLED_WR_Byte(0xAE,OLED_CMD); /*display off*/ 
	OLED_WR_Byte(0x02,OLED_CMD); /*set lower column address*/ 
	OLED_WR_Byte(0x10,OLED_CMD); /*set higher column address*/ 
	OLED_WR_Byte(0x40,OLED_CMD); /*set display start line*/ 
	OLED_WR_Byte(0xB0,OLED_CMD); /*set page address*/
	OLED_WR_Byte(0x81,OLED_CMD); /*contract control*/ 
	OLED_WR_Byte(0xcf,OLED_CMD); /*128*/ 
	OLED_WR_Byte(0xA1,OLED_CMD); /*set segment remap*/ 
	OLED_WR_Byte(0xA6,OLED_CMD); /*normal / reverse*/ 
	OLED_WR_Byte(0xA8,OLED_CMD); /*multiplex ratio*/ 
	OLED_WR_Byte(0x3F,OLED_CMD); /*duty = 1/64*/ 
	OLED_WR_Byte(0xad,OLED_CMD); /*set charge pump enable*/ 
	OLED_WR_Byte(0x8b,OLED_CMD); /* 0x8B 内供 VCC */ 
	OLED_WR_Byte(0x33,OLED_CMD); /*0X30---0X33 set VPP 9V */ 
	OLED_WR_Byte(0xC8,OLED_CMD); /*Com scan direction*/ 
	OLED_WR_Byte(0xD3,OLED_CMD); /*set display offset*/ 
	OLED_WR_Byte(0x00,OLED_CMD); /* 0x20 */ 
	OLED_WR_Byte(0xD5,OLED_CMD); /*set osc division*/ 
	OLED_WR_Byte(0x80,OLED_CMD); 
	OLED_WR_Byte(0xD9,OLED_CMD); /*set pre-charge period*/ 
	OLED_WR_Byte(0x1f,OLED_CMD); /*0x22*/ 
	OLED_WR_Byte(0xDA,OLED_CMD); /*set COM pins*/ 
	OLED_WR_Byte(0x12,OLED_CMD); 
	OLED_WR_Byte(0xdb,OLED_CMD); /*set vcomh*/ 
	OLED_WR_Byte(0x40,OLED_CMD);
	OLED_Clear();
	OLED_WR_Byte(0xAF,OLED_CMD); /*display ON*/
	
	//printf("ok");
}