- #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
- /**********************************************
- //IIC Start
- **********************************************/
- /**********************************************
- //IIC Start
- **********************************************/
- void IIC_Start()
- {
- OLED_SCLK_Set() ;
- OLED_SDIN_Set();
- OLED_SDIN_Clr();
- OLED_SCLK_Clr();
- }
-
- /**********************************************
- //IIC Stop
- **********************************************/
- void IIC_Stop()
- {
- OLED_SCLK_Set() ;
- // OLED_SCLK_Clr();
- OLED_SDIN_Clr();
- OLED_SDIN_Set();
-
- }
-
- void IIC_Wait_Ack()
- {
- //GPIOB->CRH &= 0XFFF0FFFF; //设置PB12为上拉输入模式
- //GPIOB->CRH |= 0x00080000;
- // OLED_SDA = 1;
- // delay_us(1);
- //OLED_SCL = 1;
- //delay_us(50000);
- /* while(1)
- {
- if(!OLED_SDA) //判断是否接收到OLED 应答信号
- {
- //GPIOB->CRH &= 0XFFF0FFFF; //设置PB12为通用推免输出模式
- //GPIOB->CRH |= 0x00030000;
- return;
- }
- }
- */
- OLED_SCLK_Set() ;
- OLED_SCLK_Clr();
- }
- /**********************************************
- // IIC Write byte
- **********************************************/
-
- void Write_IIC_Byte(unsigned char IIC_Byte)
- {
- unsigned char i;
- unsigned char m,da;
- da=IIC_Byte;
- // OLED_SCLK_Clr();
- for(i=0;i<8;i++)
- {
- m=da;
- OLED_SCLK_Clr();
- m=m&0x80;
- if(m==0x80)
- {OLED_SDIN_Set();}
- else OLED_SDIN_Clr();
- OLED_SCLK_Set();
- OLED_SCLK_Clr();
- da=da<<1;
- }
- }
- /**********************************************
- // IIC Write Command
- **********************************************/
- void Write_IIC_Command(unsigned char IIC_Command)
- {
- IIC_Start();
- Write_IIC_Byte(0x78); //Slave address,SA0=0
- IIC_Wait_Ack();
- Write_IIC_Byte(0x00); //write command
- IIC_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#=0
- IIC_Wait_Ack();
- Write_IIC_Byte(0x40); //write data
- IIC_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-page1
- OLED_WR_Byte(0x00,0); //low column start address
- OLED_WR_Byte(0x10,0); //high column start address
- for(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++);
- }
- }
-
- //坐标设置
- void 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),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_Refresh(void)
- //{
- // u8 i,n;
- // for(i=0;i<8;i++)
- // {
- // OLED_WR_Byte(0xb0+i,OLED_CMD); //设置行起始地址
- // OLED_WR_Byte(0x00,OLED_CMD); //设置低列起始地址
- // OLED_WR_Byte(0x10,OLED_CMD); //设置高列起始地址
- // for(n=0;n<128;n++)
- // OLED_WR_Byte(OLED_GRAM[n][i],OLED_DATA);
- // }
- //}
-
- 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
- }
- void OLED_On(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(1,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,u8 Char_Size)
- {
- 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(Char_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);
- 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)
- {
- u32 result=1;
- while(n--)result*=m;
- return result;
- }
- //显示2个数字
- //x,y :起点坐标
- //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,' ',size2);
- continue;
- }
- else enshow=1;
-
- }
- OLED_ShowChar(x+(size2/2)*t,y,temp+'0',size2);
- }
- }
- //显示一个字符号串
- 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++;
- }
- }
- //显示汉字
- 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*****************/
- 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)
- {
- GPIO_InitTypeDef GPIO_InitStructure;
-
- RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE); //使能A端口时钟
- GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7|GPIO_Pin_6;
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; //推挽输出
- GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;//速度50MHz
- GPIO_Init(GPIOC, &GPIO_InitStructure); //初始化GPIOD3,6
- GPIO_SetBits(GPIOC,GPIO_Pin_7|GPIO_Pin_6);
-
-
-
-
- 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);
- OLED_Clear();
-
-
- }
-
-
-
-