OLED的学习

//////////////////////////////////////////////////////////////////////////////////
// GND 电源地
// VCC 接5V或3.3v电源
// D0 P1^0（SCL）
// D1 P1^1（SDA）
// RES 接P12
// DC 接P13(数据/命令引脚)
// CS 接P14(片选)
//********************************************************************/

//OLED的显存
//存放格式如下.
//[0]0 1 2 3 … 127
//[1]0 1 2 3 … 127
//[2]0 1 2 3 … 127
//[3]0 1 2 3 … 127
//[4]0 1 2 3 … 127
//[5]0 1 2 3 … 127
//[6]0 1 2 3 … 127
//[7]0 1 2 3 … 127

OLED.c文件如下

//////////////////////////////////////////////////////////////////////////////////   //              GND    电源地//              VCC  接5V或3.3v电源//              D0   P1^0（SCL）//              D1   P1^1（SDA）//              RES  接P12//              DC   接P13(数据/命令引脚)//              CS   接P14(片选)               //******************************************************************************/#include "oled.h"//#include "stdlib.h"#include "oledfont.h"    //#include "delay.h"//OLED的显存//存放格式如下.//[0]0 1 2 3 ... 127    //[1]0 1 2 3 ... 127    //[2]0 1 2 3 ... 127    //[3]0 1 2 3 ... 127    //[4]0 1 2 3 ... 127    //[5]0 1 2 3 ... 127    //[6]0 1 2 3 ... 127    //[7]0 1 2 3 ... 127               void delay_ms(unsigned int ms){                             unsigned int a;    while(ms)    {        a=1800;        while(a--);        ms--;    }    return;}#if OLED_MODE==1//向SSD1106写入一个字节。//dat:要写入的数据/命令//cmd:数据/命令标志   0表示命令;      1表示数据;void OLED_WR_Byte(u8 dat,u8 cmd){    DATAOUT(dat);           if(cmd)      OLED_DC_Set();    else       OLED_DC_Clr();               OLED_CS_Clr();    OLED_WR_Clr();       OLED_WR_Set();    OLED_CS_Set();        OLED_DC_Set();   }               #else//向SSD1306写入一个字节。//dat:要写入的数据/命令//cmd:数据/命令标志   0表示命令;      1表示数据;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();        } #endif//x:0~127//y:0~63void OLED_Set_Pos(unsigned char x, unsigned char y) {     OLED_WR_Byte(0xb0+y,OLED_CMD);    OLED_WR_Byte(((x&0xf0)>>4)|0x10,OLED_CMD);    OLED_WR_Byte((x&0x0f)|0x01,OLED_CMD); }         //开启OLED显示    void OLED_Display_On(void){    OLED_WR_Byte(0X8D,OLED_CMD);  //SET DCDC命令    OLED_WR_Byte(0X14,OLED_CMD);  //DCDC ON    OLED_WR_Byte(0XAF,OLED_CMD);  //DISPLAY ON}//关闭OLED显示     void OLED_Display_Off(void){    OLED_WR_Byte(0X8D,OLED_CMD);  //SET DCDC命令    OLED_WR_Byte(0X10,OLED_CMD);  //DCDC OFF    OLED_WR_Byte(0XAE,OLED_CMD);  //DISPLAY OFF}                    //清屏函数,清完屏,整个屏幕是黑色的!和没点亮一样!!!     void OLED_Clear(void)  {      u8 i,n;             for(i=0;i<8;i++)      {          OLED_WR_Byte (0xb0+i,OLED_CMD);    //设置页地址（0~7）        OLED_WR_Byte (0x00,OLED_CMD);      //设置显示位置—列低地址        OLED_WR_Byte (0x10,OLED_CMD);      //设置显示位置—列高地址           for(n=0;n<128;n++)OLED_WR_Byte(0,OLED_DATA);     } //更新显示}//在指定位置显示一个字符,包括部分字符//x:0~127//y:0~63//mode:0,反白显示;1,正常显示                 //size:选择字体 16/12 void OLED_ShowChar(u8 x,u8 y,u8 chr){           unsigned char c=0,i=0;      c=chr-' ';//得到偏移后的值             if(x>Max_Column-1)    {        x=0;        y=y+2;    }    if(SIZE ==16)    {        OLED_Set_Pos(x,y);          for(i=0;i<8;i++)        OLED_WR_Byte(F8X16[c*16+i],OLED_DATA);        OLED_Set_Pos(x,y+1);        for(i=0;i<8;i++)        OLED_WR_Byte(F8X16[c*16+i+8],OLED_DATA);    }    else     {           OLED_Set_Pos(x,y+1);        for(i=0;i<6;i++)        OLED_WR_Byte(F6x8[c][i],OLED_DATA);    }}//m^n函数u32 OLED_Pow(u8 m,u8 n)//为了ShowNum使用{    u32 result=1;        while(n--)result*=m;        return result;}                 //显示2个数字//x,y :起点坐标  x:0~127 y:0~7 //len :数字的位数//size:字体大小//mode:模式   0,填充模式;1,叠加模式//num:数值(0~4294967295);              void OLED_ShowNum(u8 x,u8 y,u32 num,u8 len,u8 size2){               u8 t,temp;    u8 enshow=0;                               for(t=0;t<len;t++)    {        temp=(num/OLED_Pow(10,len-t-1))%10;        if(enshow==0&&t<(len-1))        {            if(temp==0)            {                OLED_ShowChar(x+(size2/2)*t,y,' ');                continue;            }            else                 enshow=1;         }        OLED_ShowChar(x+(size2/2)*t,y,temp+'0');     }} //显示一个字符号串//x:0~127 y:0~7 void OLED_ShowString(u8 x,u8 y,u8 *chr){    unsigned char j=0;    while (chr[j]!='\0')    {               OLED_ShowChar(x,y,chr[j]);        x+=8;        if(x>120)        {            x=0;            y+=2;        }        j++;    }}//显示汉字//x:0~127 y:0~7 void OLED_ShowChinese(u8 x,u8 y,u8 no){                       u8 t,adder=0;    OLED_Set_Pos(x,y);      for(t=0;t<16;t++)    {        OLED_WR_Byte(Hzk[2*no][t],OLED_DATA);        adder+=1;    }       OLED_Set_Pos(x,y+1);        for(t=0;t<16;t++)    {           OLED_WR_Byte(Hzk[2*no+1][t],OLED_DATA);        adder+=1;    }                   }/***********功能描述：显示显示BMP图片128×64起始点坐标(x,y),x的范围0～127，y为页的范围0～7*****************///x:0~127 y:0~7 void OLED_DrawBMP(unsigned char x0, unsigned char y0,unsigned char x1, unsigned char y1,unsigned char BMP[]){       unsigned int j=0;    unsigned char x,y;    if(y1%8==0)         y=y1/8;          else         y=y1/8+1;    for(y=y0;y<y1;y++)    {        OLED_Set_Pos(x0,y);        for(x=x0;x<x1;x++)        {                  OLED_WR_Byte(BMP[j++],OLED_DATA);                   }    }} //初始化SSD1306                        void OLED_Init(void){    OLED_RST_Set();    delay_ms(100);    OLED_RST_Clr();    delay_ms(100);    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);//--turn on oled panel    */    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);//--turn on oled panel    OLED_WR_Byte(0xAF,OLED_CMD); /*display ON*/     OLED_Clear();    OLED_Set_Pos(0,0);  }  

oled.h的文件如下

//////////////////////////////////////////////////////////////////////////////////   //              GND    电源地//              VCC  接5V或3.3v电源//              D0   P1^0（SCL）//              D1   P1^1（SDA）//              RES  接P12//              DC   接P13//              CS   接P14               //注： 只有此函数的 OLED_ShowChar  以及   OLED_ShowString  的x:0~127 y:0~7;//******************************************************************************/#include "REG51.h"#ifndef __OLED_H#define __OLED_H                      #define  u8 unsigned char #define  u32 unsigned int #define OLED_CMD  0 //写命令#define OLED_DATA 1 //写数据#define OLED_MODE 0 //对应SSD1106sbit OLED_CS=P1^4; //片选sbit OLED_RST =P1^2;//复位sbit OLED_DC =P1^3;//数据/命令控制sbit OLED_SCL=P1^0;//时钟 D0（SCLK)sbit OLED_SDIN=P1^1;//D1（MOSI） 数据#define OLED_CS_Clr()  OLED_CS=0#define OLED_CS_Set()  OLED_CS=1#define OLED_RST_Clr() OLED_RST=0#define OLED_RST_Set() OLED_RST=1#define OLED_DC_Clr() OLED_DC=0#define OLED_DC_Set() OLED_DC=1#define OLED_SCLK_Clr() OLED_SCL=0#define OLED_SCLK_Set() OLED_SCL=1#define OLED_SDIN_Clr() OLED_SDIN=0#define OLED_SDIN_Set() OLED_SDIN=1;//OLED模式设置//0:4线串行模式//1:并行8080模式#define SIZE 12 //可以改12或16  12对应字符为F6X8 16对应字符为F8X16#define XLevelL     0x02#define XLevelH     0x10#define Max_Column  128#define Max_Row     64#define Brightness  0xFF #define X_WIDTH     128#define Y_WIDTH     64                                //-----------------OLED端口定义----------------                        void delay_ms(unsigned int ms);//OLED控制用函数void OLED_WR_Byte(u8 dat,u8 cmd);       void OLED_Display_On(void);void OLED_Display_Off(void);                                            void OLED_Init(void);void OLED_Clear(void);void OLED_DrawPoint(u8 x,u8 y,u8 t);void OLED_Fill(u8 x1,u8 y1,u8 x2,u8 y2,u8 dot);void OLED_ShowChar(u8 x,u8 y,u8 chr);//x:0~127 y:0~63void OLED_ShowNum(u8 x,u8 y,u32 num,u8 len,u8 size2);void OLED_ShowString(u8 x,u8 y, u8 *p);void OLED_Set_Pos(unsigned char x, unsigned char y);void OLED_ShowChinese(u8 x,u8 y,u8 no);//x:0~127 y:0~63    void OLED_DrawBMP(unsigned char x0, unsigned char y0,unsigned char x1, unsigned char y1,unsigned char BMP[]);//x的范围0～127，y为页的范围0～7#endif