前言:
很长一段时间内用OLED的机会都很少,即使用了也是参考的大牛的代码,最近迫不得已又仔细研究了一遍。记下来省的忘记。
手头上用到的是0.61寸的OLED分辨率是96*16,也就是横向有96个点,纵向有16个点,贴上这个的尺寸图
我并没有看太多的资料,网上的资料也非常多,大多数是将SSD1306的,这里就简单通俗的记录一下,拿这个96*16的为例子,SSD把纵向(y方向)做了分页处理,每8个像素点作为一组(8个像素点=8个bit=一个字节),那么对于y方向有16个点的那就是分成两页了,从0开始就是0和1。对于其他分辨率的也一样,向上加就对了。在驱动的时候最常规的方法是从左到右,从上到下。值得注意的是不同型号可能取模的方式不一样,有点高位在前也有的低位在前,我现在用的是低位在前,这个手册里面还是有说的。下面附上取模的软件和配置选项:
软件用的是:PCtoLCD2002
取模配置如下:
效果图:
最后附上详细的代码(理论上支持所有的SSD1306控制器)我在12832也试过没有问题,需要自行修改宏定义,代码都有详细的中文注释:
#include "fy_oled12832.h"
#include "fy_oledfont.h"
#define OLED_IIC_SCL_PIN GPIO_PIN_4
#define OLED_IIC_SCL_L() GPIO_WriteLow(OLED_IIC_SCL_PORT,OLED_IIC_SCL_PIN) //SCLIIC接口的时钟信号
#define OLED_IIC_SCL_H() GPIO_WriteHigh(OLED_IIC_SCL_PORT,OLED_IIC_SCL_PIN)//PB4
#define OLED_IIC_SDA_PORT GPIOB
#define OLED_IIC_SDA_PIN GPIO_PIN_5
#define OLED_IIC_SDA_L() GPIO_WriteLow(OLED_IIC_SDA_PORT,OLED_IIC_SDA_PIN) //SDA IIC接口的数据信号
#define OLED_IIC_SDA_H() GPIO_WriteHigh(OLED_IIC_SDA_PORT,OLED_IIC_SDA_PIN)//PB5
/*
96*16像素
x[0-95]
y[0-15]
注意:y方向分成了两页 每页8个像素点 刚好是一个字节
*/
#define Max_x 96
#define Max_y 2
#define OLED_IIC_SCL_PORT GPIOB
#define OLED_CMD 0X00 //写命令
#define OLED_DATA 0X40 //写数据
static void Oled_IIC_Configuration(void)
{
GPIO_Init(OLED_IIC_SCL_PORT,OLED_IIC_SCL_PIN,GPIO_MODE_OUT_PP_LOW_FAST);//设置PB4为推挽输出
GPIO_Init(OLED_IIC_SDA_PORT,OLED_IIC_SDA_PIN,GPIO_MODE_OUT_PP_LOW_FAST);//设置PB5为推挽输出
}
//IIC Start
static void Oled_IIC_Start(void)
{
OLED_IIC_SCL_H();
OLED_IIC_SDA_H();
OLED_IIC_SDA_L();
OLED_IIC_SCL_L();
}
//IIC Stop
static void Oled_IIC_Stop(void)
{
OLED_IIC_SCL_L();
OLED_IIC_SDA_L();
OLED_IIC_SDA_H();
OLED_IIC_SCL_H() ;
}
// IIC Send byte
static void Oled_IIC_SendByte(u8 dat)
{
u8 i;
for(i=0;i<8;i++)
{
OLED_IIC_SCL_L();
if(dat & 0x80)
OLED_IIC_SDA_H();
else
OLED_IIC_SDA_L();
dat<<=1;
OLED_IIC_SCL_H();
}
OLED_IIC_SCL_L();
OLED_IIC_SCL_H();
}
//OLED写一个字节
//dat:写入的字节
//cmd:命令或者数据
void Oled_WriteByte(u8 dat,u8 cmd)
{
Oled_IIC_Start();
Oled_IIC_SendByte(0x78);
Oled_IIC_SendByte(cmd);
Oled_IIC_SendByte(dat);
Oled_IIC_Stop();
}
//坐标设置
void Oled_SetPos(u8 x, u8 y)
{
Oled_WriteByte(0xb0+y,OLED_CMD);
Oled_WriteByte(((x&0xf0)>>4)|0x10,OLED_CMD);
Oled_WriteByte((x&0x0f),OLED_CMD);
}
//清屏
void Oled_Clear(void)
{
u8 i,n;
for(i=0;i
{
Oled_WriteByte (0xb0+i,OLED_CMD); //设置页地址(0~1)
Oled_WriteByte (0x00,OLED_CMD); //设置显示位置—列低地址
Oled_WriteByte (0x10,OLED_CMD); //设置显示位置—列高地址
for(n=0;n
} //更新显示
}
//在指定位置显示一个字符
void Oled_ShowChar(u8 x,u8 y,u8 chr)
{
u8 c=0,i=0;
c=chr-' ';//得到偏移后的值
if(x>Max_x-1)
{
x=0;
y++;
if(y>Max_y-1) return;
}//这里的y代表的页地址 6*8的字符所以页加一
Oled_SetPos(x,y);
for(i=0;i<6;i++)//6*8的字符 点阵占6列没列8个像素点(一个字节),也就是一页的6列
Oled_WriteByte(F6x8[c][i],OLED_DATA);
}
//显示一个字符号串
void Oled_ShowString(u8 x,u8 y,u8 *chr)
{
u8 j=0;
if(y>Max_y-1) return;
while (chr[j]!='\0')
{
Oled_ShowChar(x,y,chr[j]);
x+=6;//6*8的字符 点阵占6列所以加6
if(x>Max_x-6){x=0;y++;}
j++;
}
}
//显示汉字 16*16的汉字
void Oled_ShowCHinese(u8 x,u8 y,u8 no)
{
u8 t;
Oled_SetPos(x,y);
for(t=0;t<16;t++)//先写第一页
{
Oled_WriteByte(Hzk[2*no][t],OLED_DATA);
}
Oled_SetPos(x,y+1);
for(t=0;t<16;t++)//再写第二页
{
Oled_WriteByte(Hzk[2*no+1][t],OLED_DATA);
}
}
//初始化SSD1306
void Oled_Configuration(void)
{
Oled_IIC_Configuration();
Delay_ms(100);
Oled_WriteByte(0xAE,OLED_CMD);//--display off
Oled_WriteByte(0x00,OLED_CMD);//---set low column address
Oled_WriteByte(0x10,OLED_CMD);//---set high column address
Oled_WriteByte(0x40,OLED_CMD);//--set start line address
Oled_WriteByte(0xB0,OLED_CMD);//--set page address
Oled_WriteByte(0x81,OLED_CMD); // contract control
Oled_WriteByte(0xFF,OLED_CMD);//--128
Oled_WriteByte(0xA1,OLED_CMD);//set segment remap
Oled_WriteByte(0xA6,OLED_CMD);//--normal / reverse
Oled_WriteByte(0xA8,OLED_CMD);//--set multiplex ratio(1 to 64)
Oled_WriteByte(0x0F,OLED_CMD);//--1/16 duty
Oled_WriteByte(0xC8,OLED_CMD);//Com scan direction
Oled_WriteByte(0xD3,OLED_CMD);//-set display offset
Oled_WriteByte(0x00,OLED_CMD);//
Oled_WriteByte(0xD5,OLED_CMD);//set osc division
Oled_WriteByte(0x80,OLED_CMD);//
Oled_WriteByte(0xD9,OLED_CMD);//set pre-charge period
Oled_WriteByte(0x22,OLED_CMD);//
Oled_WriteByte(0xDA,OLED_CMD);//set COM pins
Oled_WriteByte(0x02,OLED_CMD);//
Oled_WriteByte(0xDB,OLED_CMD);//set vcomh
Oled_WriteByte(0x40,OLED_CMD);//
Oled_WriteByte(0x8D,OLED_CMD);//set charge pump enable
Oled_WriteByte(0x14,OLED_CMD);//
Oled_WriteByte(0xAF,OLED_CMD);//--turn on oled panel
}
void Oled_TEST(void)
{
Delay_ms(200); //延时200ms
Oled_Configuration(); //OLED初始化
Delay_ms(200); //延时200ms
Oled_Clear(); //清屏
Delay_ms(200); //延时200ms
while (1)
{
Oled_Clear();//清屏
Oled_ShowString(0,0,"012345678ABCDEFGQWERTYUIOO");//显示数字
Delay_ms(2000);
Oled_Clear(); //清屏
Oled_ShowCHinese(8,0,0); //显示汉字“火”
Oled_ShowCHinese(24,0,1); //显示汉字“星”
Oled_ShowCHinese(40,0,2); //显示汉字“科”
Oled_ShowCHinese(56,0,3); //显示汉字“技”
Delay_ms(2000);
}
}
字库:
#ifndef __FY_OLEDFONT_H
#define __FY_OLEDFONT_H
const unsigned char F6x8[][6] =
{
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, // sp
{ 0x00, 0x00, 0x00, 0x2f, 0x00, 0x00 }, // !
{ 0x00, 0x00, 0x07, 0x00, 0x07, 0x00 }, // "
{ 0x00, 0x14, 0x7f, 0x14, 0x7f, 0x14 }, // #
{ 0x00, 0x24, 0x2a, 0x7f, 0x2a, 0x12 }, // $
{ 0x00, 0x62, 0x64, 0x08, 0x13, 0x23 }, // %
{ 0x00, 0x36, 0x49, 0x55, 0x22, 0x50 }, // &
{ 0x00, 0x00, 0x05, 0x03, 0x00, 0x00 }, // '
{ 0x00, 0x00, 0x1c, 0x22, 0x41, 0x00 }, // (
{ 0x00, 0x00, 0x41, 0x22, 0x1c, 0x00 }, // )
{ 0x00, 0x14, 0x08, 0x3E, 0x08, 0x14 }, // *
{ 0x00, 0x08, 0x08, 0x3E, 0x08, 0x08 }, // +
{ 0x00, 0x00, 0x00, 0xA0, 0x60, 0x00 }, // ,
{ 0x08, 0x08, 0x08, 0x08, 0x08, 0x08 }, // -
{ 0x00, 0x00, 0x60, 0x60, 0x00, 0x00 }, // .
{ 0x00, 0x20, 0x10, 0x08, 0x04, 0x02 }, // /
{ 0x00, 0x3E, 0x51, 0x49, 0x45, 0x3E }, // 0
{ 0x00, 0x00, 0x42, 0x7F, 0x40, 0x00 }, // 1
{ 0x00, 0x42, 0x61, 0x51, 0x49, 0x46 }, // 2
{ 0x00, 0x21, 0x41, 0x45, 0x4B, 0x31 }, // 3
{ 0x00, 0x18, 0x14, 0x12, 0x7F, 0x10 }, // 4
{ 0x00, 0x27, 0x45, 0x45, 0x45, 0x39 }, // 5
{ 0x00, 0x3C, 0x4A, 0x49, 0x49, 0x30 }, // 6
{ 0x00, 0x01, 0x71, 0x09, 0x05, 0x03 }, // 7
{ 0x00, 0x36, 0x49, 0x49, 0x49, 0x36 }, // 8
{ 0x00, 0x06, 0x49, 0x49, 0x29, 0x1E }, // 9
{ 0x00, 0x00, 0x36, 0x36, 0x00, 0x00 }, // :
{ 0x00, 0x00, 0x56, 0x36, 0x00, 0x00 }, // ;
{ 0x08, 0x1C, 0x2A, 0x49, 0x08, 0x08 }, // <
{ 0x00, 0x14, 0x14, 0x14, 0x14, 0x14 }, // =
{ 0x08, 0x08, 0x49, 0x2A, 0x1C, 0x08 }, // >
{ 0x00, 0x02, 0x01, 0x51, 0x09, 0x06 }, // ?
{ 0x00, 0x32, 0x49, 0x59, 0x51, 0x3E }, // @
{ 0x00, 0x7C, 0x12, 0x11, 0x12, 0x7C }, // A
{ 0x00, 0x7F, 0x49, 0x49, 0x49, 0x36 }, // B
{ 0x00, 0x3E, 0x41, 0x41, 0x41, 0x22 }, // C
{ 0x00, 0x7F, 0x41, 0x41, 0x22, 0x1C }, // D
{ 0x00, 0x7F, 0x49, 0x49, 0x49, 0x41 }, // E
{ 0x00, 0x7F, 0x09, 0x09, 0x09, 0x01 }, // F
{ 0x00, 0x3E, 0x41, 0x49, 0x49, 0x7A }, // G
{ 0x00, 0x7F, 0x08, 0x08, 0x08, 0x7F }, // H
{ 0x00, 0x00, 0x41, 0x7F, 0x41, 0x00 }, // I
{ 0x00, 0x20, 0x40, 0x41, 0x3F, 0x01 }, // J
{ 0x00, 0x7F, 0x08, 0x14, 0x22, 0x41 }, // K
{ 0x00, 0x7F, 0x40, 0x40, 0x40, 0x40 }, // L
{ 0x00, 0x7F, 0x02, 0x0C, 0x02, 0x7F }, // M
{ 0x00, 0x7F, 0x04, 0x08, 0x10, 0x7F }, // N
{ 0x00, 0x3E, 0x41, 0x41, 0x41, 0x3E }, // O
{ 0x00, 0x7F, 0x09, 0x09, 0x09, 0x06 }, // P
{ 0x00, 0x3E, 0x41, 0x51, 0x21, 0x5E }, // Q
{ 0x00, 0x7F, 0x09, 0x19, 0x29, 0x46 }, // R
{ 0x00, 0x46, 0x49, 0x49, 0x49, 0x31 }, // S
{ 0x00, 0x01, 0x01, 0x7F, 0x01, 0x01 }, // T
{ 0x00, 0x3F, 0x40, 0x40, 0x40, 0x3F }, // U
{ 0x00, 0x1F, 0x20, 0x40, 0x20, 0x1F }, // V
{ 0x00, 0x3F, 0x40, 0x38, 0x40, 0x3F }, // W
{ 0x00, 0x63, 0x14, 0x08, 0x14, 0x63 }, // X
{ 0x00, 0x07, 0x08, 0x70, 0x08, 0x07 }, // Y
{ 0x00, 0x61, 0x51, 0x49, 0x45, 0x43 }, // Z
{ 0x00, 0x00, 0x7F, 0x41, 0x41, 0x00 }, // [
{ 0x00, 0x55, 0x2A, 0x55, 0x2A, 0x55 }, // 55
{ 0x00, 0x00, 0x41, 0x41, 0x7F, 0x00 }, // ]
{ 0x04, 0x02, 0xFF, 0x02, 0x04, 0x00 }, // ^
{ 0x00, 0x20, 0x40, 0xFF, 0x40, 0x20 }, // _
{ 0x00, 0x00, 0x01, 0x02, 0x04, 0x00 }, // '
{ 0x00, 0x20, 0x54, 0x54, 0x54, 0x78 }, // a
{ 0x00, 0x7F, 0x48, 0x44, 0x44, 0x38 }, // b
{ 0x00, 0x38, 0x44, 0x44, 0x44, 0x20 }, // c
{ 0x00, 0x38, 0x44, 0x44, 0x48, 0x7F }, // d
{ 0x00, 0x38, 0x54, 0x54, 0x54, 0x18 }, // e
{ 0x00, 0x08, 0x7E, 0x09, 0x01, 0x02 }, // f
{ 0x00, 0x18, 0xA4, 0xA4, 0xA4, 0x7C }, // g
{ 0x00, 0x7F, 0x08, 0x04, 0x04, 0x78 }, // h
{ 0x00, 0x00, 0x44, 0x7D, 0x40, 0x00 }, // i
{ 0x00, 0x40, 0x80, 0x84, 0x7D, 0x00 }, // j
{ 0x00, 0x7F, 0x10, 0x28, 0x44, 0x00 }, // k
{ 0x00, 0x00, 0x41, 0x7F, 0x40, 0x00 }, // l
{ 0x00, 0x7C, 0x04, 0x18, 0x04, 0x78 }, // m
{ 0x00, 0x7C, 0x08, 0x04, 0x04, 0x78 }, // n
{ 0x00, 0x38, 0x44, 0x44, 0x44, 0x38 }, // o
{ 0x00, 0xFC, 0x24, 0x24, 0x24, 0x18 }, // p
{ 0x00, 0x18, 0x24, 0x24, 0x18, 0xFC }, // q
{ 0x00, 0x7C, 0x08, 0x04, 0x04, 0x08 }, // r
{ 0x00, 0x48, 0x54, 0x54, 0x54, 0x20 }, // s
{ 0x00, 0x04, 0x3F, 0x44, 0x40, 0x20 }, // t
{ 0x00, 0x3C, 0x40, 0x40, 0x20, 0x7C }, // u
{ 0x00, 0x1C, 0x20, 0x40, 0x20, 0x1C }, // v
{ 0x00, 0x3C, 0x40, 0x30, 0x40, 0x3C }, // w
{ 0x00, 0x44, 0x28, 0x10, 0x28, 0x44 }, // x
{ 0x00, 0x1C, 0xA0, 0xA0, 0xA0, 0x7C }, // y
{ 0x00, 0x44, 0x64, 0x54, 0x4C, 0x44 }, // z
{ 0x14, 0x14, 0x14, 0x14, 0x14, 0x14 } // horiz lines
};
char Hzk[][32]={
{0x00,0x00,0xC0,0x38,0x00,0x00,0x00,0xFF,0x00,0x00,0x40,0x20,0x18,0x00,0x00,0x00},
{0x80,0x81,0x40,0x20,0x10,0x0C,0x03,0x00,0x03,0x0C,0x10,0x20,0x40,0x80,0x80,0x00},/*"火",0*/
{0x00,0x00,0x00,0xBE,0x2A,0x2A,0x2A,0xEA,0x2A,0x2A,0x2A,0x3E,0x00,0x00,0x00,0x00},
{0x00,0x44,0x42,0x49,0x49,0x49,0x49,0x7F,0x49,0x49,0x49,0x49,0x41,0x40,0x00,0x00},/*"星",1*/
{0x24,0x24,0xA4,0xFE,0xA3,0x22,0x00,0x22,0xCC,0x00,0x00,0xFF,0x00,0x00,0x00,0x00},
{0x08,0x06,0x01,0xFF,0x00,0x01,0x04,0x04,0x04,0x04,0x04,0xFF,0x02,0x02,0x02,0x00},/*"科",2*/
{0x10,0x10,0x10,0xFF,0x10,0x90,0x08,0x88,0x88,0x88,0xFF,0x88,0x88,0x88,0x08,0x00},
{0x04,0x44,0x82,0x7F,0x01,0x80,0x80,0x40,0x43,0x2C,0x10,0x28,0x46,0x81,0x80,0x00},/*"技",3*/
};
#endif
/*********************************************END OF FILE**********************************************/
测试例程:
void Oled_TEST(void)
{
Delay_ms(200); //延时200ms
Oled_Configuration(); //OLED初始化
Delay_ms(200); //延时200ms
Oled_Clear(); //清屏
Delay_ms(200); //延时200ms
while (1)
{
Oled_Clear();//清屏
Oled_ShowString(0,0,"012345678ABCDEFGQWERTYUIOO");//显示字符
Delay_ms(2000);
Oled_Clear(); //清屏
Oled_ShowCHinese(8,0,0); //显示汉字“火”
Oled_ShowCHinese(24,0,1); //显示汉字“星”
Oled_ShowCHinese(40,0,2); //显示汉字“科”
Oled_ShowCHinese(56,0,3); //显示汉字“技”
Delay_ms(2000);
}
}
至此完毕!
---------------------
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