OLED写入指令和数据

1.OLED写命令

写命令/数据的代码

/
*
1. start()
2. 写入 b0111 1000 0x78
3. ACK
4. cotrol byte: (0)(0)000000 写入命令 (0)(1)000000写入数据
5. ACK
6. 写入指令/数据
7. ACK
8. STOP
*/
void Oled_Write_Cmd(char dataCmd)5.1.4 OLED的寻址模式
如何显示一个点？
有三种，分别位页地址模式，水平地址模式和垂直地址模式，可以通过一下表格进行配置
内存管理
{// 1. start()IIC_Start();//// 2. 写入从机地址 b0111 1000 0x78IIC_Send_Byte(0x78);// 3. ACKIIC_ACK();// 4. cotrol byte: (0)(0)000000 写入命令 (0)(1)000000写入数据IIC_Send_Byte(0x00);// 5. ACKIIC_ACK();//6. 写入指令/数据IIC_Send_Byte(dataCmd);//7. ACKIIC_ACK();//8. STOPIIC_Stop();
} void Oled_Write_Data(char dataData)
{// 1. start()IIC_Start();//// 2. 写入从机地址 b0111 1000 0x78IIC_Send_Byte(0x78);// 3. ACKIIC_ACK();// 4. cotrol byte: (0)(0)000000 写入命令 (0)(1)000000写入数据IIC_Send_Byte(0x00);// 5. ACKIIC_ACK();///6. 写入指令/数据IIC_Send_Byte(dataData);//7. ACKIIC_ACK();//8. STOPIIC_Stop();
}

2.OLED的寻址模式

如何显示一个点？

有三种，分别位页地址模式，水平地址模式和垂直地址模式，可以通过一下表格进行配置内存管理

页寻址模式

#include "reg52.h"
#include "intrins.h"sbit scl = P0^1;
sbit sda = P0^3;void IIC_Start()
{scl = 0; //防止雪花sda = 1;scl = 1;_nop_(); //耗时5个微妙sda = 0;_nop_();
}void IIC_Stop()
{scl = 0; //防止雪花sda = 0;scl = 1;_nop_(); //耗时5个微妙sda = 1;_nop_();
}char IIC_ACK()
{char flag;sda = 1;   //就在时钟脉冲9期间释放数据线_nop_();scl = 1;_nop_();flag = sda;_nop_();scl = 0;_nop_();return flag;}void IIC_Send_Byte(char dataSend) //发送一个字节
{int i;for(i = 0 ;i<8;i++){scl = 0;//scl 拉低，让sda做好数据准备sda = dataSend & 0x80;       // 1000 0000 获得datasend的最高位_nop_(); //发送数据建立的时间scl = 1;//scl拉高开始发送_nop_(); //数据发送时间scl = 0; // 发送完毕拉低_nop_();//dataSend = dataSend <<1;}
}void Oled_Write_Cmd(char dataCmd)
{//1.start()IIC_Start();//2.写入从机地址 b0111 1000 0x78IIC_Send_Byte(0x78);//3.ACKIIC_ACK();//4.cotrol byte : (0)(0) 000000 写入命令 (0)(1) 000000写入数据IIC_Send_Byte(0x00);//5.ACKIIC_ACK();//6.写入指令/数据IIC_Send_Byte(dataCmd);//7.ACKIIC_ACK();//8.STOPIIC_Stop();
}void Oled_Write_Data(char dataData)
{//1.start()IIC_Start();//2.写入从机地址 b0111 1000 0x78IIC_Send_Byte(0x78);//3.ACKIIC_ACK();//4.cotrol byte : (0)(0) 000000 写入命令 (0)(1) 000000写入数据IIC_Send_Byte(0x40);//5.ACKIIC_Stop();//6.写入指令/数据IIC_Send_Byte(dataData);//7.ACKIIC_ACK();//8.STOPIIC_Stop();
}//oled初始函数void Oled_Init(void){Oled_Write_Cmd(0xAE);//--display offOled_Write_Cmd(0x00);//---set low column addressOled_Write_Cmd(0x10);//---set high column addressOled_Write_Cmd(0x40);//--set start line addressOled_Write_Cmd(0xB0);//--set page addressOled_Write_Cmd(0x81); // contract controlOled_Write_Cmd(0xFF);//--128Oled_Write_Cmd(0xA1);//set segment remapOled_Write_Cmd(0xA6);//--normal / reverseOled_Write_Cmd(0xA8);//--set multiplex ratio(1 to 64)Oled_Write_Cmd(0x3F);//--1/32 dutyOled_Write_Cmd(0xC8);//Com scan directionOled_Write_Cmd(0xD3);//-set display offsetOled_Write_Cmd(0x00);//Oled_Write_Cmd(0xD5);//set osc divisionOled_Write_Cmd(0x80);//Oled_Write_Cmd(0xD8);//set area color mode offOled_Write_Cmd(0x05);//Oled_Write_Cmd(0xD9);//Set Pre-Charge PeriodOled_Write_Cmd(0xF1);//Oled_Write_Cmd(0xDA);//set com pin configuartionOled_Write_Cmd(0x12);//Oled_Write_Cmd(0xDB);//set VcomhOled_Write_Cmd(0x30);//Oled_Write_Cmd(0x8D);//set charge pump enableOled_Write_Cmd(0x14);//Oled_Write_Cmd(0xAF);//--turn on oled panel
}//清屏函数
void Oled_Clear()
{unsigned char i,j;for(i = 0;i<8;i++){Oled_Write_Cmd(0xB0 + i);	//page0 -- page7//每个page从第0列开始Oled_Write_Cmd(0x00);Oled_Write_Cmd(0x10);//每个page从0列到127列，依次写入0，每写入数据，列地址自动偏移for(j = 0;j<128;j++){Oled_Write_Data(0);}}}void main()
{int a = 10;//1.Oled初始化Oled_Init();//2.选择一个位置//2.1选择页寻址模式Oled_Write_Cmd(0x20);Oled_Write_Cmd(0x02);Oled_Clear();//2.2选择PAGE0   1011 0000   0xB0Oled_Write_Cmd(0xB0);Oled_Write_Cmd(0x00);Oled_Write_Cmd(0x10);//3.显示一个点Oled_Write_Data(0x08);Oled_Write_Data(0x08);Oled_Write_Data(0x08);Oled_Write_Data(0x08);Oled_Write_Data(0x08);Oled_Write_Data(0x08);Oled_Write_Data(0x08);Oled_Write_Data(0x08);Oled_Write_Data(0x08);Oled_Write_Data(0x08);Oled_Write_Data(0x08);Oled_Write_Data(0x08);Oled_Write_Cmd(0xB5);Oled_Write_Cmd(0x00);Oled_Write_Cmd(0x10);Oled_Write_Data(0x08);Oled_Write_Data(0x08);Oled_Write_Data(0x08);Oled_Write_Data(0x08);Oled_Write_Data(0x08);Oled_Write_Data(0x08);Oled_Write_Data(0x08);Oled_Write_Data(0x08);Oled_Write_Data(0x08);Oled_Write_Data(0x08);Oled_Write_Data(0x08);Oled_Write_Data(0x08);Oled_Write_Cmd(0xB0);Oled_Write_Cmd(0x0f);Oled_Write_Cmd(0x17);Oled_Write_Data(0x08);while(1); //程序不能退出
}

OLED显示一行字

思路：1.防止雪花bug

2. Oled_Write_Cmd(0xB0); //page0开始
Oled_Write_Cmd(0x00); //从第0列开始
Oled_Write_Cmd(0x10);

后面等同

#include "reg52.h"
#include "intrins.h"sbit scl = P0^1;
sbit sda = P0^3;void IIC_Start()
{scl = 0; //防止雪花sda = 1;scl = 1;_nop_(); //耗时5个微妙sda = 0;_nop_();
}void IIC_Stop()
{scl = 0; //防止雪花sda = 0;scl = 1;_nop_(); //耗时5个微妙sda = 1;_nop_();
}char IIC_ACK()
{char flag;sda = 1;   //就在时钟脉冲9期间释放数据线_nop_();scl = 1;_nop_();flag = sda;_nop_();scl = 0;_nop_();return flag;}void IIC_Send_Byte(char dataSend) //发送一个字节
{int i;for(i = 0 ;i<8;i++){scl = 0;//scl 拉低，让sda做好数据准备sda = dataSend & 0x80;       // 1000 0000 获得datasend的最高位_nop_(); //发送数据建立的时间scl = 1;//scl拉高开始发送_nop_(); //数据发送时间scl = 0; // 发送完毕拉低_nop_();//dataSend = dataSend <<1;}
}void Oled_Write_Cmd(char dataCmd)
{//1.start()IIC_Start();//2.写入从机地址 b0111 1000 0x78IIC_Send_Byte(0x78);//3.ACKIIC_ACK();//4.cotrol byte : (0)(0) 000000 写入命令 (0)(1) 000000写入数据IIC_Send_Byte(0x00);//5.ACKIIC_ACK();//6.写入指令/数据IIC_Send_Byte(dataCmd);//7.ACKIIC_ACK();//8.STOPIIC_Stop();
}void Oled_Write_Data(char dataData)
{//1.start()IIC_Start();//2.写入从机地址 b0111 1000 0x78IIC_Send_Byte(0x78);//3.ACKIIC_ACK();//4.cotrol byte : (0)(0) 000000 写入命令 (0)(1) 000000写入数据IIC_Send_Byte(0x40);//5.ACKIIC_Stop();//6.写入指令/数据IIC_Send_Byte(dataData);//7.ACKIIC_ACK();//8.STOPIIC_Stop();
}void Oled_Init(void){Oled_Write_Cmd(0xAE);//--display offOled_Write_Cmd(0x00);//---set low column addressOled_Write_Cmd(0x10);//---set high column addressOled_Write_Cmd(0x40);//--set start line addressOled_Write_Cmd(0xB0);//--set page addressOled_Write_Cmd(0x81); // contract controlOled_Write_Cmd(0xFF);//--128Oled_Write_Cmd(0xA1);//set segment remapOled_Write_Cmd(0xA6);//--normal / reverseOled_Write_Cmd(0xA8);//--set multiplex ratio(1 to 64)Oled_Write_Cmd(0x3F);//--1/32 dutyOled_Write_Cmd(0xC8);//Com scan directionOled_Write_Cmd(0xD3);//-set display offsetOled_Write_Cmd(0x00);//Oled_Write_Cmd(0xD5);//set osc divisionOled_Write_Cmd(0x80);//Oled_Write_Cmd(0xD8);//set area color mode offOled_Write_Cmd(0x05);//Oled_Write_Cmd(0xD9);//Set Pre-Charge PeriodOled_Write_Cmd(0xF1);//Oled_Write_Cmd(0xDA);//set com pin configuartionOled_Write_Cmd(0x12);//Oled_Write_Cmd(0xDB);//set VcomhOled_Write_Cmd(0x30);//Oled_Write_Cmd(0x8D);//set charge pump enableOled_Write_Cmd(0x14);//Oled_Write_Cmd(0xAF);//--turn on oled panel
}void Oled_Clear()
{unsigned char i,j;for(i = 0;i<8;i++){Oled_Write_Cmd(0xB0 + i);	//page0 -- page7//每个page从第0列开始Oled_Write_Cmd(0x00);Oled_Write_Cmd(0x10);//每个page从0列到127列，依次写入0，每写入数据，列地址自动偏移for(j = 0;j<128;j++){Oled_Write_Data(0);}}}/*--  文字:  爱  --*/
/*--  宋体12;  此字体下对应的点阵为：宽x高=16x16   --*/
code char a1[16] = {0x80,0x64,0x2C,0x34,0x24,0x24,0xEC,0x32,0x22,0x22,0x32,0x2E,0x23,0xA2,0x60,0x00};
code char a2[16] = {0x00,0x41,0x21,0x91,0x89,0x87,0x4D,0x55,0x25,0x25,0x55,0x4D,0x81,0x80,0x80,0x00};/*--  文字:  我  --*/
/*--  宋体12;  此字体下对应的点阵为：宽x高=16x16   --*/
code char w1[16] = {0x20,0x24,0x24,0x24,0xFE,0x23,0x22,0x20,0x20,0xFF,0x20,0x22,0x2C,0xA0,0x20,0x00};
code char w2[16] = {0x00,0x08,0x48,0x84,0x7F,0x02,0x41,0x40,0x20,0x13,0x0C,0x14,0x22,0x41,0xF8,0x00};/*--  文字:  的  --*/
/*--  宋体12;  此字体下对应的点阵为：宽x高=16x16   --*/
code char d1[16] = {0x00,0xF8,0x0C,0x0B,0x08,0x08,0xF8,0x40,0x30,0x8F,0x08,0x08,0x08,0xF8,0x00,0x00};
code char d2[16] = {0x00,0x7F,0x21,0x21,0x21,0x21,0x7F,0x00,0x00,0x00,0x43,0x80,0x40,0x3F,0x00,0x00};/*--  文字:  宝  --*/
/*--  宋体12;  此字体下对应的点阵为：宽x高=16x16   --*/
code char b1[16] = {0x10,0x4C,0x44,0x44,0x44,0x44,0x45,0xC6,0x44,0x44,0x44,0x44,0x44,0x54,0x0C,0x00};
code char b2[16] = {0x40,0x40,0x44,0x44,0x44,0x44,0x44,0x7F,0x44,0x44,0x54,0x64,0x44,0x40,0x40,0x00};/*--  文字:  贝  --*/
/*--  宋体12;  此字体下对应的点阵为：宽x高=16x16   --*/
code char bb1[16] = {0x00,0x00,0x00,0xFE,0x02,0x02,0x02,0xE2,0x02,0x02,0x02,0xFE,0x00,0x00,0x00,0x00};
code char bb2[16] = {0x00,0x00,0x80,0x47,0x20,0x10,0x0C,0x03,0x08,0x10,0x20,0x47,0x80,0x00,0x00,0x00};/*--  文字:  猪  --*/
/*--  宋体12;  此字体下对应的点阵为：宽x高=16x16   --*/
code char z1[16] = {0x22,0x14,0x08,0xF4,0x02,0x20,0x24,0x24,0xA4,0x7F,0x24,0x34,0x28,0x26,0x20,0x00};
code char z2[16] = {0x44,0x82,0x41,0x3F,0x00,0x04,0x02,0xFF,0x49,0x49,0x49,0x49,0xFF,0x00,0x00,0x00};void main()
{unsigned char i;//1.Oled初始化Oled_Init();//2.选择一个位置//2.1选择页寻址模式Oled_Write_Cmd(0x20);Oled_Write_Cmd(0x02);Oled_Clear();//2.2选择PAGE0   1011 0000   0xB0Oled_Write_Cmd(0xB0);  //page0Oled_Write_Cmd(0x00);  //从第0列开始Oled_Write_Cmd(0x10);for(i = 0; i<16;i++){Oled_Write_Data(a1[i]);}for(i = 0; i<16;i++){Oled_Write_Data(w1[i]);}for(i = 0; i<16;i++){Oled_Write_Data(d1[i]);}for(i = 0; i<16;i++){Oled_Write_Data(b1[i]);}for(i = 0; i<16;i++){Oled_Write_Data(bb1[i]);}for(i = 0; i<16;i++){Oled_Write_Data(z1[i]);}Oled_Write_Cmd(0xB1);  //page1Oled_Write_Cmd(0x00);  //从第0列开始Oled_Write_Cmd(0x10);for(i = 0; i<16;i++){Oled_Write_Data(a2[i]);}for(i = 0; i<16;i++){Oled_Write_Data(w2[i]);}for(i = 0; i<16;i++){Oled_Write_Data(d2[i]);}for(i = 0; i<16;i++){Oled_Write_Data(b2[i]);}for(i = 0; i<16;i++){Oled_Write_Data(bb2[i]);}for(i = 0; i<16;i++){Oled_Write_Data(z2[i]);}while(1); //程序不能退出
}