关于OLED-IIC两线制的模块代码

plue · 发表于 2019-7-19 19:06:46

想求一个OLED-IIC通信的代码，自己移植到F407上屏不亮，
OLED是SSD1306的就淘宝上买的，
有IIC调试OLED成功了的可以指导下或是分享下，感激不尽

zjh205980 · 发表于 2019-7-19 19:06:47

#include "led.h"
#include "stdlib.h"
#include "oledfont.h"
#include "delay.h"
#include  "oled.h"

u8 OLED_GRAM[144][8];//ÏÔê¾êy¾Y»o′æbuf ¿éòÔ¿ØÖÆ Îa0 ′ïμ½ÇåáãD§1û
//·′ÏÔoˉêy
void OLED_ColorTurn(u8 i)
{
if(i==0)
{
OLED_WR_Byte(0xA6,OLED_CMD);//Õy3￡ÏÔê¾
}
if(i==1)
{
OLED_WR_Byte(0xA7,OLED_CMD);//·′é«ÏÔê¾
}
}

//ÆáÄ»Dy×a180¶è
void OLED_DisplayTurn(u8 i)
{
if(i==0)
{
OLED_WR_Byte(0xC8,OLED_CMD);//Õy3￡ÏÔê¾
OLED_WR_Byte(0xA1,OLED_CMD);
}
if(i==1)
{
OLED_WR_Byte(0xC0,OLED_CMD);//·′×aÏÔê¾
OLED_WR_Byte(0xA0,OLED_CMD);
}
}

//Æeê¼DÅoÅ
void I2C_Start(void)
{
OLED_SDIN_Set();
OLED_SCLK_Set();
OLED_SDIN_Clr();
OLED_SCLK_Clr();
}

void I2C_Stop(void)
{
OLED_SCLK_Set();
OLED_SDIN_Clr();
OLED_SDIN_Set();
}

//μè′yDÅoÅÏìó|
void I2C_WaitAck(void) //2aêy¾YDÅoÅμÄμçÆ½
{
OLED_SCLK_Set();
OLED_SCLK_Clr();
}
//D′èëò»¸ö×Ö½ú
void Send_Byte(u8 dat)
{
u8 i;
for(i=0;i<8;i++)
{
OLED_SCLK_Clr();//½«ê±ÖóDÅoÅéèÖÃÎaμíμçÆ½
if(dat&0x80)//½«datμÄ8Î»′ó×î¸ßÎ»òà′ÎD′èë
{
OLED_SDIN_Set();
}
else
{
OLED_SDIN_Clr();
}
OLED_SCLK_Set();//½«ê±ÖóDÅoÅéèÖÃÎa¸ßμçÆ½
OLED_SCLK_Clr();//½«ê±ÖóDÅoÅéèÖÃÎaμíμçÆ½
dat<<=1;
  }
}
//·￠Ëíò»¸ö×Ö½ú
//ÏòSSD1306D′èëò»¸ö×Ö½ú¡￡
//mode:êy¾Y/Ãüáî±êÖ¾ 0,±íê¾Ãüáî;1,±íê¾êy¾Y;
void OLED_WR_Byte(u8 dat,u8 mode)
{
I2C_Start();
Send_Byte(0x78);
I2C_WaitAck();
if(mode){Send_Byte(0x40);}
  else{Send_Byte(0x00);}
I2C_WaitAck();
Send_Byte(dat);
I2C_WaitAck();
I2C_Stop();
}
//¿aÆôOLEDÏÔê¾
void OLED_DisPlay_On(void)
{
OLED_WR_Byte(0x8D,OLED_CMD);//μçoé±Ãê1Äü
OLED_WR_Byte(0x14,OLED_CMD);//¿aÆôμçoé±Ã
OLED_WR_Byte(0xAF,OLED_CMD);//μãááÆáÄ»
}
//1Ø±ÕOLEDÏÔê¾
void OLED_DisPlay_Off(void)
{
OLED_WR_Byte(0x8D,OLED_CMD);//μçoé±Ãê1Äü
OLED_WR_Byte(0x10,OLED_CMD);//1Ø±Õμçoé±Ã
OLED_WR_Byte(0xAF,OLED_CMD);//1Ø±ÕÆáÄ»
}
//¸üDÂÏÔ′æμ½OLED    é3μñ ì«′àáË
void OLED_Refresh(void)
{
u8 i,n;
for(i=0;i<8;i++)// ·Ö8DD ′ó×óμ½óò  ′óéÏμ½ÏÂ
{
   OLED_WR_Byte(0xb0+i,OLED_CMD); //éèÖÃDDÆeê¼μØÖ·
   OLED_WR_Byte(0x00,OLED_CMD); //éèÖÃμíáDÆeê¼μØÖ·
   OLED_WR_Byte(0x10,OLED_CMD); //éèÖÃ¸ßáDÆeê¼μØÖ·
   for(n=0;n<128;n++)
   OLED_WR_Byte(OLED_GRAM[n][i],OLED_DATA);
  }
}
//»-μã
//x:0~127
//y:0~63
void OLED_DrawPoint2_0(u8 x,u8 y)
{
u8 i,m,n;
u8 k;

i=y/8;
m=y%8;
n=1<<m;
OLED_GRAM[x][i]|=n;
OLED_WR_Byte(0xb0+i,OLED_CMD); //éèÖÃDDÆeê¼μØÖ·
   OLED_WR_Byte(0x00,OLED_CMD); //éèÖÃμíáDÆeê¼μØÖ·
   OLED_WR_Byte(0x10,OLED_CMD); //éèÖÃ¸ßáDÆeê¼μØÖ·
OLED_WR_Byte(OLED_GRAM[x][i],OLED_DATA);

}

//ÇåÆáoˉêy
void OLED_Clear(void)
{
u8 i,n;
for(i=0;i<8;i++)
{
   for(n=0;n<128;n++)
{
   OLED_GRAM[n][i]=0;//Çå3yËùóDêy¾Y
}
  }
OLED_Refresh();//¸üDÂÏÔê¾
}

//»-μã
//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;
OLED_WR_Byte(0xb0+i,OLED_CMD); //éèÖÃDDÆeê¼μØÖ·
OLED_WR_Byte(((x&0xf0)>>4)|0x10,OLED_CMD);
OLED_WR_Byte((x&0x0f)|0x00,OLED_CMD);
//    OLED_WR_Byte(0x02,OLED_CMD); //éèÖÃμíáDÆeê¼μØÖ·
//    OLED_WR_Byte(0x10,OLED_CMD); //éèÖÃ¸ßáDÆeê¼μØÖ·
OLED_WR_Byte(OLED_GRAM[x][i],OLED_DATA);
}

//Çå3yò»¸öμã
//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];

OLED_WR_Byte(0xb0+i,OLED_CMD); //éèÖÃDDÆeê¼μØÖ·
OLED_WR_Byte(((x&0xf0)>>4)|0x10,OLED_CMD);
OLED_WR_Byte((x&0x0f)|0x00,OLED_CMD);
//    OLED_WR_Byte(0x02,OLED_CMD); //éèÖÃμíáDÆeê¼μØÖ·
//    OLED_WR_Byte(0x10,OLED_CMD); //éèÖÃ¸ßáDÆeê¼μØÖ·
OLED_WR_Byte(OLED_GRAM[x][i],OLED_DATA);
}

//»-Ïß
//x:0~128
//y:0~64
void OLED_DrawLine(u8 x1,u8 y1,u8 x2,u8 y2)
{
u8 i,k,k1,k2;//y0;
if((x2>128)||(y2>64)||(x1>x2)||(y1>y2))return;
if(x1==x2) //»-êúÏß
{
for(i=0;i<(y2-y1);i++)
{
OLED_DrawPoint(x1,y1+i);
}
  }
else if(y1==y2) //»-oáÏß
{
for(i=0;i<(x2-x1);i++)
{
OLED_DrawPoint(x1+i,y1);
}
  }
else    //»-D±Ïß
{
k1=y2-y1;
k2=x2-x1;
k=k1*10/k2;  // ¼ÆËãD±Âê ·Å′ó10±¶′|àí
for(i=0;i<(x2-x1);i++)
{
   OLED_DrawPoint(x1+i,y1+i*k/10); //D±ÂêÔù3yμô
}
}
}
//x,y:Ô2DÄ×ø±ê
//r:Ô2μÄ°ë¾¶                   2·Ö·¨»-Ô2
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;//¼ÆËã»-μÄμãàëÔ2DÄμÄ¾ààë
      if(num > 0)
      {
         b--;
         a--;
      }
}
}
//ÔúÖ¸¶¨Î»ÖÃÏÔê¾ò»¸ö×Ö·û,°üà¨2¿·Ö×Ö·û
//x:0~127
//y:0~63
//size:Ñ¡Ôñ×Öìå 12/16/24
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);  //μÃμ½×Öìåò»¸ö×Ö·û¶Ôó|μãÕó¼ˉËùÕ¼μÄ×Ö½úêy
chr1=chr-' ';  //¼ÆËãÆ«òÆoóμÄÖμ
for(i=0;i<size2;i++)
{
if(size1==12)
      {temp=asc2_1206[chr1][i];} //μ÷óÃ1206×Öìå
else if(size1==16)
      {temp=asc2_1608[chr1][i];} //μ÷óÃ1608×Öìå
else if(size1==24)
      {temp=asc2_2412[chr1][i];} //μ÷óÃ2412×Öìå
else return;
for(m=0;m<8;m++)          //D′èëêy¾Y
{
if(temp&0x80)OLED_DrawPoint(x,y);
else OLED_ClearPoint(x,y);
temp<<=1;
y++;
if((y-y0)==size1)
{
y=y0;
x++;
break;
      }
}
  }
}

//ÏÔê¾×Ö·û′®
//x,y:Æeμã×ø±ê
//size1:×Öìå′óD¡
//*chr:×Ö·û′®Æeê¼μØÖ·
void OLED_ShowString(u8 x,u8 y,u8 *chr,u8 size1)
{
while((*chr>=' ')&&(*chr<='~'))//ÅD¶ÏêÇ2»êÇ·Ç·¨×Ö·û!
{
OLED_ShowChar(x,y,*chr,size1);
x+=size1/2;
if(x>128-size1)  //»»DD
{
x=0;
y+=2;
}
chr++;
  }
}

//m^n
u32 OLED_Pow(u8 m,u8 n)
{
u32 result=1;
while(n--)
{
   result*=m;
}
return result;
}
////ÏÔê¾2¸öêy×Ö
////x,y :Æeμã×ø±ê
////len :êy×ÖμÄÎ»êy
////size:×Öìå′óD¡
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);

}
  }
}

//ÏÔê¾oo×Ö
//x,y:Æeμã×ø±ê
//num

o×Ö¶Ôó|μÄDòoÅ
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];}//μ÷óÃ16*16×Öìå
else if(size1==24)
{temp=Hzk2[chr1][i];}//μ÷óÃ24*24×Öìå
else if(size1==32)
{temp=Hzk3[chr1][i];}//μ÷óÃ32*32×Öìå
else if(size1==64)
{temp=Hzk4[chr1][i];}//μ÷óÃ64*64×Öìå
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 ÏÔê¾oo×ÖμÄ¸öêy
//space Ã¿ò»±éÏÔê¾μÄ¼ä¸ô
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); //D′èëò»¸öoo×Ö±￡′æÔúOLED_GRAM[][]êy×éÖD
t++;
}
if(t==num)
{
for(r=0;r<16*space;r++)    //ÏÔê¾¼ä¸ô
   {
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++) //êμÏÖ×óòÆ
{
for(n=0;n<8;n++)
{
OLED_GRAM[i-1][n]=OLED_GRAM[i][n];
}
}
OLED_Refresh();
}
}
//ÅäÖÃD′èëêy¾YμÄÆeê¼Î»ÖÃ
void OLED_WR_BP(u8 x,u8 y)
{
OLED_WR_Byte(0xb0+y,OLED_CMD);//éèÖÃDDÆeê¼μØÖ·
OLED_WR_Byte(((x&0xf0)>>4)|0x10,OLED_CMD);
OLED_WR_Byte((x&0x0f)|0x01,OLED_CMD);
}

//x0,y0￡oÆeμã×ø±ê
//x1,y1￡oÖÕμã×ø±ê
//BMP[]￡oòaD′èëμÄí¼Æ¬êy×é
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++;
   }
   }
}

//OLEDμÄ3õê¼»ˉ
void OLED_Init(void)
{
GPIO_InitTypeDef  GPIO_InitStructure;

RCC_APB2PeriphClockCmd(OLED_RCC_APB2PeriphClockCmd, ENABLE);    //ê1ÄüA¶Ë¿úê±Öó
GPIO_InitStructure.GPIO_Pin =OLED_SDA|OLED_SCL;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;    //íÆíìêä3ö
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;//Ëù¶è50MHz
GPIO_Init(OLED_GPIO, &GPIO_InitStructure);
GPIO_SetBits(OLED_GPIO,OLED_SCL|OLED_SDA);

// OLED_RST_Set();
delay_ms(100);
// OLED_RST_Clr();//¸′Î»
// delay_ms(200);
// OLED_RST_Set();
// OLED_DC_Clr();

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×óóò·′ÖÃ 0xa1Õy3￡
OLED_WR_Byte(0xC8,OLED_CMD);//Set COM/Row Scan Direction 0xc0éÏÏÂ·′ÖÃ 0xc8Õy3￡
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();
}

//»-¾ØDÎ
//(x1,y1),(x2,y2):¾ØDÎμÄ¶Ô½Ç×ø±ê
void OLED_DrawRectangle(u16 x1, u16 y1, u16 x2, u16 y2)
{
OLED_DrawLine(x1,y1,x2,y1);
OLED_DrawLine(x1,y1,x1,y2);
OLED_DrawLine(x1,y2,x2,y2);
OLED_DrawLine(x2,y1,x2,y2);
}

//void LCD_ShowChina(u16 x,u16 y,,size,0);
//ÔúÖ¸¶¨Î»ÖÃÏÔê¾ò»¸ö×Ö·û
//x,y:Æeê¼×ø±ê
//num:òaÏÔê¾μÄ×Ö·û:" "--->"~"
//size:×Öìå′óD¡ 12/16/24
//mode:μt¼ó·½ê½(1)»1êÇ·Çμt¼ó·½ê½(0)
void OLED_ShowChina(u16 x,u16 y,u8 *p ,u8 size,u8 mode)
{
u8 temp ,t1,t;
u8  k;
u16 y0=y;
u8 csize=(size/8+((size%8)?1:0))*size;
for(k=0;k<2;k++)
{
if((chinese_32[k].symbol[0]==*p)&&
(chinese_32[k].symbol[1]==*(p+1)))
{
break;
}
}
for(t=0;t<csize;t++)
{
temp=chinese_32[k].bit[t];
for(t1=0;t1<8;t1++)
{
if(temp&0x80)
{
OLED_DrawPoint(x,y);
}
else if(mode==0)
{
OLED_ClearPoint(x,y);
}
temp<<=1;//×óòÆò»Î»  Ôù  óëÇ°ÃæμÄ0x80 Ïàóë    8′Î íê3éò»¸ö×Ö·û×YáD μÄ»-μã
y++;//×YÏòè¡Ä￡
if(y>64)return;
if((y-y0)==size)
{
y=y0;//¿aê¼D′DÂμÄò»áD
x++;//DD×ø±ê¼óò»  êéD′ÏÂò»áD
if(x>128)return;
break;
}
}
}
}

//ÏÔê¾oo×Ö
//x,y:Æeμã×ø±ê
//width,height:Çøóò′óD¡
//size:×Öìå′óD¡
//*p:×Ö·û′®Æeê¼μØÖ·
void LCD_Show_Chinese(u16 x,u16 y,u16 width,u16 height,u8 size,u8 *p)
{
u8 x0=x;

width+=x;
height+=y;
while(*p!='\0')
{
if(x>=width){x=x0;y+=size;}
if(y>=height)break;//íË3ö
OLED_ShowChina(x,y,p,size,0);
x+=size;
p+=2;
}
}

这是模拟I2C

plue · 发表于 2019-7-20 09:01:50

zjh205980 发表于 2019-7-19 19:06
#include "led.h"
#include "stdlib.h"
#include "oledfont.h"

这个代码我试过了，屏还是没亮，能加个QQ聊聊吗1045817422

MengXin1741 · 发表于 2021-4-23 20:44:44

111111111

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