STM32F1基于正点原子HAL库IIC驱动SH1106芯片的OLED屏

1、oled.c代码

#include "oled.h"
#include "stdlib.h"
#include "oledfont.h"
#include "delay.h"void IIC_Start(void)  //IIC Start
{OLED_SCL=1;OLED_SDA=1;OLED_SDA=0;OLED_SCL=0;
}void IIC_Stop(void)  //IIC Stop
{OLED_SCL=1;OLED_SDA=0;OLED_SDA=1;}void IIC_Wait_Ack(void)
{OLED_SCL=1;OLED_SCL=0;
}void Write_IIC_Byte(unsigned char IIC_Byte) // IIC Write byte
{unsigned char i;unsigned char m,da;da=IIC_Byte;OLED_SCL=0;for(i=0;i<8;i++)     {m=da;m=m&0x80;if(m==0x80) {OLED_SDA=1;}else OLED_SDA=0;da=da<<1;OLED_SCL=1;OLED_SCL=0;}}
/**********************************************
// IIC Write Command
**********************************************/
void Write_IIC_Command(unsigned char IIC_Command)
{IIC_Start();Write_IIC_Byte(0x78);            //Slave address,SA0=0IIC_Wait_Ack(); Write_IIC_Byte(0x00);           //write commandIIC_Wait_Ack();  Write_IIC_Byte(IIC_Command); IIC_Wait_Ack();    IIC_Stop();
}
/**********************************************
// IIC Write Data
**********************************************/
void Write_IIC_Data(unsigned char IIC_Data)
{IIC_Start();Write_IIC_Byte(0x78);          //D/C#=0; R/W#=0IIC_Wait_Ack();   Write_IIC_Byte(0x40);           //write dataIIC_Wait_Ack(); Write_IIC_Byte(IIC_Data);IIC_Wait_Ack();    IIC_Stop();
}
void OLED_WR_Byte(unsigned dat,unsigned cmd)
{if(cmd) Write_IIC_Data(dat); else  Write_IIC_Command(dat);
}/********************************************
// fill_Picture
********************************************/
void fill_picture(unsigned char fill_Data)
{unsigned char m,n;for(m=0;m<8;m++){OLED_WR_Byte(0xb0+m,0);      //page0-page1OLED_WR_Byte(0x02,0);      //low column start addressOLED_WR_Byte(0x10,0);     //high column start addressfor(n=0;n<128;n++){OLED_WR_Byte(fill_Data,1);}}
}/***********************Delay****************************************/
void Delay_50ms(unsigned int Del_50ms)
{unsigned int m;for(;Del_50ms>0;Del_50ms--)for(m=6245;m>0;m--);
}void Delay_1ms(unsigned int Del_1ms)
{unsigned char j;while(Del_1ms--){  for(j=0;j<123;j++);}
}//×ø±êÉèÖÃvoid OLED_Set_Pos(unsigned char x, unsigned char y)
{ OLED_WR_Byte(0xb0+y,OLED_CMD);OLED_WR_Byte((((x+2)&0xf0)>>4)|0x10,OLED_CMD);OLED_WR_Byte(((x+2)&0x0f),OLED_CMD);
}
//¿ªÆôOLEDÏÔÊ¾
void OLED_Display_On(void)
{OLED_WR_Byte(0X8D,OLED_CMD);  //SET DCDCÃüÁîOLED_WR_Byte(0X14,OLED_CMD);  //DCDC ONOLED_WR_Byte(0XAF,OLED_CMD);  //DISPLAY ON
}
//¹Ø±ÕOLEDÏÔÊ¾
void OLED_Display_Off(void)
{OLED_WR_Byte(0X8D,OLED_CMD);  //SET DCDCÃüÁîOLED_WR_Byte(0X10,OLED_CMD);  //DCDC OFFOLED_WR_Byte(0XAE,OLED_CMD);  //DISPLAY OFF
}
//ÇåÆÁº¯Êý,ÇåÍêÆÁ,Õû¸öÆÁÄ»ÊÇºÚÉ«µÄ!ºÍÃ»µãÁÁÒ»Ñù!!!
void OLED_Clear(void)
{  u8 i,n;          for(i=0;i<8;i++)  {  OLED_WR_Byte (0xb0+i,OLED_CMD);    //ÉèÖÃÒ³µØÖ·£¨0~7£©OLED_WR_Byte (0x02,OLED_CMD);      //ÉèÖÃÏÔÊ¾Î»ÖÃ¡ªÁÐµÍµØÖ·OLED_WR_Byte (0x10,OLED_CMD);      //ÉèÖÃÏÔÊ¾Î»ÖÃ¡ªÁÐ¸ßµØÖ·   for(n=0;n<128;n++)OLED_WR_Byte(0,OLED_DATA); } //¸üÐÂÏÔÊ¾
}
void OLED_On(void)
{  u8 i,n;          for(i=0;i<8;i++)  {  OLED_WR_Byte (0xb0+i,OLED_CMD);    //ÉèÖÃÒ³µØÖ·£¨0~7£©OLED_WR_Byte (0x02,OLED_CMD);      //ÉèÖÃÏÔÊ¾Î»ÖÃ¡ªÁÐµÍµØÖ·OLED_WR_Byte (0x10,OLED_CMD);      //ÉèÖÃÏÔÊ¾Î»ÖÃ¡ªÁÐ¸ßµØÖ·   for(n=0;n<128;n++)OLED_WR_Byte(1,OLED_DATA); } //¸üÐÂÏÔÊ¾
}
//ÔÚÖ¸¶¨Î»ÖÃÏÔÊ¾Ò»¸ö×Ö·û,°üÀ¨²¿·Ö×Ö·û
//x:0~127
//y:0~63
//mode:0,·´°×ÏÔÊ¾;1,Õý³£ÏÔÊ¾
//size:Ñ¡Ôñ×ÖÌå 16/12 //m^nº¯Êý
u32 oled_pow(u8 m,u8 n)
{u32 result=1;  while(n--)result*=m;    return result;
}
//ÏÔÊ¾2¸öÊý×Ö
//x,y :Æðµã×ø±ê
//len :Êý×ÖµÄÎ»Êý
//size:×ÖÌå´óÐ¡
//mode:Ä£Ê½ 0,Ìî³äÄ£Ê½;1,µþ¼ÓÄ£Ê½
//num:ÊýÖµ(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,' ',size2);continue;}else enshow=1; }OLED_ShowChar(x+(size2/2)*t,y,temp+'0',size2); }
}
//ÏÔÊ¾Ò»¸ö×Ö·ûºÅ´®
void OLED_ShowString(u8 x,u8 y,u8 *chr,u8 Char_Size)
{unsigned char j=0;while (chr[j]!='\0'){        OLED_ShowChar(x,y,chr[j],Char_Size);x+=8;if(x>120){x=0;y+=2;}j++;}
}/***********¹¦ÄÜÃèÊö£ºÏÔÊ¾ÏÔÊ¾BMPÍ¼Æ¬128¡Á64ÆðÊ¼µã×ø±ê(x,y),xµÄ·¶Î§0¡«127£¬yÎªÒ³µÄ·¶Î§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);          }}
} void OLED_GPIO_Init(void)
{GPIO_InitTypeDef GPIO_InitStructure;   //¶¨ÒåÒ»¸öGPIO_InitTypeDefÀàÐÍµÄ½á¹¹Ìå__HAL_RCC_GPIOD_CLK_ENABLE(); //¿ªÆôA×éIOµÄÊ±ÖÓGPIO_InitStructure.Pin=GPIO_PIN_6 | GPIO_PIN_7;   //Ñ¡Ôñ¿ØÖÆµÄÒý½ÅGPIO_InitStructure.Mode=GPIO_MODE_OUTPUT_PP;   //ÉèÖÃÎªÍ¨ÓÃ¿ªÂ©Êä³öGPIO_InitStructure.Speed=GPIO_SPEED_FREQ_HIGH; //ÉèÖÃÊä³öËÙÂÊÎª50MHzHAL_GPIO_Init(GPIOD,&GPIO_InitStructure);  //µ÷ÓÃ¿âº¯Êý³õÊ¼»¯GPIOAOLED_SCL=1; //ÉèPC2£¨SCL£©Îª¸ßµçÆ½OLED_SDA=1;  //ÉèPC3£¨SDA£©Îª¸ßµçÆ½
}//³õÊ¼»¯SSD1306
void OLED_Init(void)
{   OLED_GPIO_Init();delay_ms(200);OLED_WR_Byte(0xAE,OLED_CMD);//--display offOLED_WR_Byte(0x02,OLED_CMD);//---set low column addressOLED_WR_Byte(0x10,OLED_CMD);//---set high column addressOLED_WR_Byte(0x40,OLED_CMD);//--set start line address  OLED_WR_Byte(0xB0,OLED_CMD);//--set page addressOLED_WR_Byte(0x81,OLED_CMD); // contract controlOLED_WR_Byte(0xFF,OLED_CMD);//--128   OLED_WR_Byte(0xA1,OLED_CMD);//set segment remap OLED_WR_Byte(0xA6,OLED_CMD);//--normal / reverseOLED_WR_Byte(0xA8,OLED_CMD);//--set multiplex ratio(1 to 64)OLED_WR_Byte(0x3F,OLED_CMD);//--1/32 dutyOLED_WR_Byte(0xC8,OLED_CMD);//Com scan directionOLED_WR_Byte(0xD3,OLED_CMD);//-set display offsetOLED_WR_Byte(0x00,OLED_CMD);//OLED_WR_Byte(0xD5,OLED_CMD);//set osc divisionOLED_WR_Byte(0x80,OLED_CMD);//OLED_WR_Byte(0xD8,OLED_CMD);//set area color mode offOLED_WR_Byte(0x05,OLED_CMD);//OLED_WR_Byte(0xD9,OLED_CMD);//Set Pre-Charge PeriodOLED_WR_Byte(0xF1,OLED_CMD);//OLED_WR_Byte(0xDA,OLED_CMD);//set com pin configuartionOLED_WR_Byte(0x12,OLED_CMD);//OLED_WR_Byte(0xDB,OLED_CMD);//set VcomhOLED_WR_Byte(0x30,OLED_CMD);//OLED_WR_Byte(0x8D,OLED_CMD);//set charge pump enableOLED_WR_Byte(0x14,OLED_CMD);//OLED_WR_Byte(0xAF,OLED_CMD);//--turn on oled panel
}

2、oled.h


#ifndef __OLED_H
#define __OLED_H
#include "sys.h"
#include "stdlib.h"           #define SIZE 8
#define XLevelL     0x00
#define XLevelH     0x10
#define Max_Column  128
#define Max_Row     64
#define Brightness  0xFF
#define X_WIDTH     128
#define Y_WIDTH     64                                void OLED_WR_Byte(unsigned dat,unsigned 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,u8 Char_Size);
void OLED_ShowNum(u8 x,u8 y,u32 num,u8 len,u8 size);
void OLED_ShowString(u8 x,u8 y, u8 *p,u8 Char_Size);
void OLED_Set_Pos(unsigned char x, unsigned char y);
void OLED_ShowCHinese(u8 x,u8 y,u8 no);
void OLED_DrawBMP(unsigned char x0, unsigned char y0,unsigned char x1, unsigned char y1,unsigned char BMP[]);
void Delay_50ms(unsigned int Del_50ms);
void Delay_1ms(unsigned int Del_1ms);
void fill_picture(unsigned char fill_Data);
void IIC_Start(void);
void IIC_Stop(void);
void Write_IIC_Command(unsigned char IIC_Command);
void Write_IIC_Data(unsigned char IIC_Data);
void Write_IIC_Byte(unsigned char IIC_Byte);void IIC_Wait_Ack(void);
#endif

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