- #ifndef __OLED_H
- #define __OLED_H
- #include "sys.h"
- #include "stdlib.h"
- //-----------------測試LED端口定義----------------
- #define LED_ON GPIO_ResetBits(GPIOB,GPIO_Pin_8)
- #define LED_OFF GPIO_SetBits(GPIOB,GPIO_Pin_8)
- //-----------------OLED端口定義----------------
- #define OLED_SCLK_Clr() GPIO_ResetBits(GPIOB,GPIO_Pin_6)
- #define OLED_SCLK_Set() GPIO_SetBits(GPIOB,GPIO_Pin_6)
- #define OLED_SDIN_Clr() GPIO_ResetBits(GPIOB,GPIO_Pin_7)//DIN
- #define OLED_SDIN_Set() GPIO_SetBits(GPIOB,GPIO_Pin_7)
- #define OLED_RST_Clr() GPIO_ResetBits(GPIOB,GPIO_Pin_0)//RES
- #define OLED_RST_Set() GPIO_SetBits(GPIOB,GPIO_Pin_0)
- #define OLED_DC_Clr() GPIO_ResetBits(GPIOB,GPIO_Pin_1)//DC
- #define OLED_DC_Set() GPIO_SetBits(GPIOB,GPIO_Pin_1)
-
- #define OLED_CS_Clr() GPIO_ResetBits(GPIOA,GPIO_Pin_4)//CS
- #define OLED_CS_Set() GPIO_SetBits(GPIOA,GPIO_Pin_4)
- #define OLED_CMD 0 //寫命令
- #define OLED_DATA 1 //寫數據
- #define u8 unsigned char
- #define u32 unsigned int
- void OLED_ClearPoint(u8 x,u8 y);
- void OLED_ColorTurn(u8 i);
- void OLED_DisplayTurn(u8 i);
- void OLED_WR_Byte(u8 dat,u8 cmd);
- void OLED_DisPlay_On(void);
- void OLED_DisPlay_Off(void);
- void OLED_Refresh(void);
- void OLED_Clear(void);
- void OLED_DrawPoint(u8 x,u8 y);
- void OLED_DrawLine(u8 x1,u8 y1,u8 x2,u8 y2);
- void OLED_DrawCircle(u8 x,u8 y,u8 r);
- void OLED_ShowChar(u8 x,u8 y,u8 chr,u8 size1);
- void OLED_ShowString(u8 x,u8 y,u8 *chr,u8 size1);
- void OLED_ShowNum(u8 x,u8 y,u32 num,u8 len,u8 size1);
- void OLED_ShowChinese(u8 x,u8 y,u8 num,u8 size1);
- void OLED_ScrollDisplay(u8 num,u8 space);
- void OLED_WR_BP(u8 x,u8 y);
- void OLED_ShowPicture(u8 x0,u8 y0,u8 x1,u8 y1,u8 BMP[]);
- void OLED_Init(void);
- #endif
復制代碼- #include "oled.h"
- #include "stdlib.h"
- #include "oledfont.h"
- #include "delay.h"
- u8 OLED_GRAM[144][8];
- //反顯函數
- void OLED_ColorTurn(u8 i)
- {
- if(i==0)
- {
- OLED_WR_Byte(0xA6,OLED_CMD);//正常顯示
- }
- if(i==1)
- {
- OLED_WR_Byte(0xA7,OLED_CMD);//反色顯示
- }
- }
- //屏幕旋轉180度
- void OLED_DisplayTurn(u8 i)
- {
- if(i==0)
- {
- OLED_WR_Byte(0xC8,OLED_CMD);//正常顯示
- OLED_WR_Byte(0xA1,OLED_CMD);
- }
- if(i==1)
- {
- OLED_WR_Byte(0xC0,OLED_CMD);//反轉顯示
- OLED_WR_Byte(0xA0,OLED_CMD);
- }
- }
- void OLED_WR_Byte(u8 dat,u8 cmd)
- {
- u8 i;
- if(cmd)
- OLED_DC_Set();
- else
- OLED_DC_Clr();
- OLED_CS_Clr();
- for(i=0;i<8;i++)
- {
- OLED_SCLK_Clr();
- if(dat&0x80)
- OLED_SDIN_Set();
- else
- OLED_SDIN_Clr();
- OLED_SCLK_Set();
- dat<<=1;
- }
- OLED_CS_Set();
- OLED_DC_Set();
- }
- //開啟OLED顯示
- void OLED_DisPlay_On(void)
- {
- OLED_WR_Byte(0x8D,OLED_CMD);//電荷泵使能
- OLED_WR_Byte(0x14,OLED_CMD);//開啟電荷泵
- OLED_WR_Byte(0xAF,OLED_CMD);//點亮屏幕
- }
- //關閉OLED顯示
- void OLED_DisPlay_Off(void)
- {
- OLED_WR_Byte(0x8D,OLED_CMD);//電荷泵使能
- OLED_WR_Byte(0x10,OLED_CMD);//關閉電荷泵
- OLED_WR_Byte(0xAF,OLED_CMD);//關閉屏幕
- }
- //更新顯存到OLED
- void OLED_Refresh(void)
- {
- u8 i,n;
- for(i=0;i<8;i++)
- {
- OLED_WR_Byte(0xb0+i,OLED_CMD); //設置行起始地址
- OLED_WR_Byte(0x00,OLED_CMD); //設置低列起始地址
- OLED_WR_Byte(0x10,OLED_CMD); //設置高列起始地址
- for(n=0;n<128;n++)
- OLED_WR_Byte(OLED_GRAM[n][i],OLED_DATA);
- }
- }
- //清屏函數
- void OLED_Clear(void)
- {
- u8 i,n;
- for(i=0;i<8;i++)
- {
- for(n=0;n<128;n++)
- {
- OLED_GRAM[n][i]=0;//清除所有數據
- }
- }
- OLED_Refresh();//更新顯示
- }
- //畫點
- //x:0~127
- //y:0~63
- void OLED_DrawPoint(u8 x,u8 y)
- {
- u8 i,m,n;
- i=y/8;
- m=y%8;
- n=1<<m;
- OLED_GRAM[x][i]|=n;
- }
- //清除一個點
- //x:0~127
- //y:0~63
- void OLED_ClearPoint(u8 x,u8 y)
- {
- u8 i,m,n;
- i=y/8;
- m=y%8;
- n=1<<m;
- OLED_GRAM[x][i]=~OLED_GRAM[x][i];
- OLED_GRAM[x][i]|=n;
- OLED_GRAM[x][i]=~OLED_GRAM[x][i];
- }
- //畫線
- //x:0~128
- //y:0~64
- void OLED_DrawLine(u8 x1,u8 y1,u8 x2,u8 y2)
- {
- u8 i,k,k1,k2,y0;
- if((x1<0)||(x2>128)||(y1<0)||(y2>64)||(x1>x2)||(y1>y2))return;
- if(x1==x2) //畫豎線
- {
- for(i=0;i<(y2-y1);i++)
- {
- OLED_DrawPoint(x1,y1+i);
- }
- }
- else if(y1==y2) //畫橫線
- {
- for(i=0;i<(x2-x1);i++)
- {
- OLED_DrawPoint(x1+i,y1);
- }
- }
- else //畫斜線
- {
- k1=y2-y1;
- k2=x2-x1;
- k=k1*10/k2;
- for(i=0;i<(x2-x1);i++)
- {
- OLED_DrawPoint(x1+i,y1+i*k/10);
- }
- }
- }
- //x,y:圓心坐標
- //r:圓的半徑
- void OLED_DrawCircle(u8 x,u8 y,u8 r)
- {
- int a, b,num;
- a = 0;
- b = r;
- while(2 * b * b >= r * r)
- {
- OLED_DrawPoint(x + a, y - b);
- OLED_DrawPoint(x - a, y - b);
- OLED_DrawPoint(x - a, y + b);
- OLED_DrawPoint(x + a, y + b);
-
- OLED_DrawPoint(x + b, y + a);
- OLED_DrawPoint(x + b, y - a);
- OLED_DrawPoint(x - b, y - a);
- OLED_DrawPoint(x - b, y + a);
-
- a++;
- num = (a * a + b * b) - r*r;//計算畫的點離圓心的距離
- if(num > 0)
- {
- b--;
- a--;
- }
- }
- }
- //在指定位置顯示一個字符,包括部分字符
- //x:0~127
- //y:0~63
- //size:選擇字體 12/16/24
- //取模方式 逐列式
- void OLED_ShowChar(u8 x,u8 y,u8 chr,u8 size1)
- {
- u8 i,m,temp,size2,chr1;
- u8 y0=y;
- size2=(size1/8+((size1%8)?1:0))*(size1/2); //得到字體一個字符對應點陣集所占的字節數
- chr1=chr-' '; //計算偏移后的值
- for(i=0;i<size2;i++)
- {
- if(size1==12)
- {temp=asc2_1206[chr1][i];} //調用1206字體
- else if(size1==16)
- {temp=asc2_1608[chr1][i];} //調用1608字體
- else if(size1==24)
- {temp=asc2_2412[chr1][i];} //調用2412字體
- else return;
- for(m=0;m<8;m++) //寫入數據
- {
- if(temp&0x80)OLED_DrawPoint(x,y);
- else OLED_ClearPoint(x,y);
- temp<<=1;
- y++;
- if((y-y0)==size1)
- {
- y=y0;
- x++;
- break;
- }
- }
- }
- }
- //顯示字符串
- //x,y:起點坐標
- //size1:字體大小
- //*chr:字符串起始地址
- void OLED_ShowString(u8 x,u8 y,u8 *chr,u8 size1)
- {
- while((*chr>=' ')&&(*chr<='~'))//判斷是不是非法字符!
- {
- OLED_ShowChar(x,y,*chr,size1);
- x+=size1/2;
- if(x>128-size1) //換行
- {
- x=0;
- y+=2;
- }
- chr++;
- }
- }
- //m^n
- u32 OLED_Pow(u8 m,u8 n)
- {
- u32 result=1;
- while(n--)
- {
- result*=m;
- }
- return result;
- }
- ////顯示2個數字
- ////x,y :起點坐標
- ////len :數字的位數
- ////size:字體大小
- void OLED_ShowNum(u8 x,u8 y,u32 num,u8 len,u8 size1)
- {
- u8 t,temp;
- for(t=0;t<len;t++)
- {
- temp=(num/OLED_Pow(10,len-t-1))%10;
- if(temp==0)
- {
- OLED_ShowChar(x+(size1/2)*t,y,'0',size1);
- }
- else
- {
- OLED_ShowChar(x+(size1/2)*t,y,temp+'0',size1);
- }
- }
- }
- //顯示漢字
- //x,y:起點坐標
- //num:漢字對應的序號
- //取模方式 列行式
- void OLED_ShowChinese(u8 x,u8 y,u8 num,u8 size1)
- {
- u8 i,m,n=0,temp,chr1;
- u8 x0=x,y0=y;
- u8 size3=size1/8;
- while(size3--)
- {
- chr1=num*size1/8+n;
- n++;
- for(i=0;i<size1;i++)
- {
- if(size1==16)
- {temp=Hzk1[chr1][i];}//調用16*16字體
- else if(size1==24)
- {temp=Hzk2[chr1][i];}//調用24*24字體
- else if(size1==32)
- {temp=Hzk3[chr1][i];}//調用32*32字體
- else if(size1==64)
- {temp=Hzk4[chr1][i];}//調用64*64字體
- else return;
-
- for(m=0;m<8;m++)
- {
- if(temp&0x01)OLED_DrawPoint(x,y);
- else OLED_ClearPoint(x,y);
- temp>>=1;
- y++;
- }
- x++;
- if((x-x0)==size1)
- {x=x0;y0=y0+8;}
- y=y0;
- }
- }
- }
- //num 顯示漢字的個數
- //space 每一遍顯示的間隔
- void OLED_ScrollDisplay(u8 num,u8 space)
- {
- u8 i,n,t=0,m=0,r;
- while(1)
- {
- if(m==0)
- {
- OLED_ShowChinese(128,24,t,16); //寫入一個漢字保存在OLED_GRAM[][]數組中
- t++;
- }
- if(t==num)
- {
- for(r=0;r<16*space;r++) //顯示間隔
- {
- for(i=0;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=0;i<144;i++) //實現左移
- {
- for(n=0;n<8;n++)
- {
- OLED_GRAM[i-1][n]=OLED_GRAM[i][n];
- }
- }
- OLED_Refresh();
- }
- }
- //配置寫入數據的起始位置
- void OLED_WR_BP(u8 x,u8 y)
- {
- OLED_WR_Byte(0xb0+y,OLED_CMD);//設置行起始地址
- OLED_WR_Byte(((x&0xf0)>>4)|0x10,OLED_CMD);
- OLED_WR_Byte((x&0x0f),OLED_CMD);
- }
- //x0,y0:起點坐標
- //x1,y1:終點坐標
- //BMP[]:要寫入的圖片數組
- void OLED_ShowPicture(u8 x0,u8 y0,u8 x1,u8 y1,u8 BMP[])
- {
- u32 j=0;
- u8 x=0,y=0;
- if(y%8==0)y=0;
- else y+=1;
- for(y=y0;y<y1;y++)
- {
- OLED_WR_BP(x0,y);
- for(x=x0;x<x1;x++)
- {
- OLED_WR_Byte(BMP[j],OLED_DATA);
- j++;
- }
- }
- }
- //OLED的初始化
- void OLED_Init(void)
- {
- GPIO_InitTypeDef GPIO_InitStructure;
- RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE); //使能A端口時鐘
- GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4|GPIO_Pin_5|GPIO_Pin_7;
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; //推挽輸出
- GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;//速度50MHz
- GPIO_Init(GPIOA, &GPIO_InitStructure); //初始化GPIOD3,6
- GPIO_SetBits(GPIOA,GPIO_Pin_5|GPIO_Pin_7|GPIO_Pin_4);
-
- RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE); //使能A端口時鐘
- GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_8|GPIO_Pin_6|GPIO_Pin_7;
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; //推挽輸出
- GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;//速度50MHz
- GPIO_Init(GPIOB, &GPIO_InitStructure); //初始化GPIOD3,6
- GPIO_SetBits(GPIOB,GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_8|GPIO_Pin_6|GPIO_Pin_7);
-
-
- OLED_RST_Set();
- delay_ms(100);
- OLED_RST_Clr();//復位
- delay_ms(200);
- OLED_RST_Set();
-
- OLED_WR_Byte(0xAE,OLED_CMD);//--turn off oled panel
- OLED_WR_Byte(0x00,OLED_CMD);//---set low column address
- OLED_WR_Byte(0x10,OLED_CMD);//---set high column address
- OLED_WR_Byte(0x40,OLED_CMD);//--set start line address Set Mapping RAM Display Start Line (0x00~0x3F)
- OLED_WR_Byte(0x81,OLED_CMD);//--set contrast control register
- OLED_WR_Byte(0xCF,OLED_CMD);// Set SEG Output Current Brightness
- OLED_WR_Byte(0xA1,OLED_CMD);//--Set SEG/Column Mapping 0xa0左右反置 0xa1正常
- OLED_WR_Byte(0xC8,OLED_CMD);//Set COM/Row Scan Direction 0xc0上下反置 0xc8正常
- OLED_WR_Byte(0xA6,OLED_CMD);//--set normal display
- OLED_WR_Byte(0xA8,OLED_CMD);//--set multiplex ratio(1 to 64)
- OLED_WR_Byte(0x3f,OLED_CMD);//--1/64 duty
- OLED_WR_Byte(0xD3,OLED_CMD);//-set display offset Shift Mapping RAM Counter (0x00~0x3F)
- OLED_WR_Byte(0x00,OLED_CMD);//-not offset
- OLED_WR_Byte(0xd5,OLED_CMD);//--set display clock divide ratio/oscillator frequency
- OLED_WR_Byte(0x80,OLED_CMD);//--set divide ratio, Set Clock as 100 Frames/Sec
- OLED_WR_Byte(0xD9,OLED_CMD);//--set pre-charge period
- OLED_WR_Byte(0xF1,OLED_CMD);//Set Pre-Charge as 15 Clocks & Discharge as 1 Clock
- OLED_WR_Byte(0xDA,OLED_CMD);//--set com pins hardware configuration
- OLED_WR_Byte(0x12,OLED_CMD);
- OLED_WR_Byte(0xDB,OLED_CMD);//--set vcomh
- OLED_WR_Byte(0x40,OLED_CMD);//Set VCOM Deselect Level
- OLED_WR_Byte(0x20,OLED_CMD);//-Set Page Addressing Mode (0x00/0x01/0x02)
- OLED_WR_Byte(0x02,OLED_CMD);//
- OLED_WR_Byte(0x8D,OLED_CMD);//--set Charge Pump enable/disable
- OLED_WR_Byte(0x14,OLED_CMD);//--set(0x10) disable
- OLED_WR_Byte(0xA4,OLED_CMD);// Disable Entire Display On (0xa4/0xa5)
- OLED_WR_Byte(0xA6,OLED_CMD);// Disable Inverse Display On (0xa6/a7)
- OLED_WR_Byte(0xAF,OLED_CMD);
- OLED_Clear();
- }
復制代碼 代碼下載:
02-0.96OLED顯示屏STM32F103RCT6_IIC例程.zip
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2021-6-24 19:09 上傳
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