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- #include "oled.h"
- #include "codetab.h"
- #include "delay.h"
- /**************************实现函数********************************************
- *函数原型: void IIC_Start(void)
- *功 能: 产生IIC起始信号
- *******************************************************************************/
- void OLED_IIC_Start(void)
- {
- OLED_IIC_SDA=1;
- OLED_IIC_SCL=1;
- delay_us(1);
- OLED_IIC_SDA=0;
- delay_us(1);
- OLED_IIC_SCL=0;//钳住I2C总线,准备发送或接收数据
- }
- /**************************实现函数********************************************
- *函数原型: void IIC_Stop(void)
- *功 能: //产生IIC停止信号
- *******************************************************************************/
- void OLED_IIC_Stop(void)
- {
- OLED_IIC_SCL=0;
- OLED_IIC_SDA=0;//STOP:when CLK is high DATA change form low to high
- delay_us(1);
- OLED_IIC_SCL=1;
- OLED_IIC_SDA=1;//发送I2C总线结束信号
- delay_us(1);
- }
- void Write_IIC_Byte(unsigned char IIC_Byte)
- {
- unsigned char i;
- for(i=0;i<8;i++)
- {
- if(IIC_Byte & 0x80)
- OLED_IIC_SDA=1;
- else
- OLED_IIC_SDA=0;
- OLED_IIC_SCL=1;
- delay_us(1); //必须有保持SCL脉冲的延时
- OLED_IIC_SCL=0;
- IIC_Byte<<=1;
- }
- OLED_IIC_SDA = 1;//原程序这里有一个拉高SDA,根据OLED的DATASHEET,此句必须去掉。
- OLED_IIC_SCL=1;
- delay_us(1);
- OLED_IIC_SCL=0;
- }
- /*********************OLED写数据************************************/
- void OLED_WrDat(unsigned char IIC_Data)
- {
- OLED_IIC_Start();
- Write_IIC_Byte(0x78);
- Write_IIC_Byte(0x40); //write data
- Write_IIC_Byte(IIC_Data);
- OLED_IIC_Stop();
- }
- /*********************OLED写命令************************************/
- void OLED_WrCmd(unsigned char IIC_Command)
- {
- OLED_IIC_Start();
- Write_IIC_Byte(0x78); //Slave address,SA0=0
- Write_IIC_Byte(0x00); //write command
- Write_IIC_Byte(IIC_Command);
- OLED_IIC_Stop();
- }
- /*********************OLED 设置坐标************************************/
- void OLED_Set_Pos(unsigned char x, unsigned char y)
- {
- OLED_WrCmd(0xb0+y);
- OLED_WrCmd(((x&0xf0)>>4)|0x10);
- OLED_WrCmd((x&0x0f)|0x01);
- }
- /*********************OLED全屏************************************/
- void OLED_Fill(unsigned char bmp_dat)
- {
- unsigned char y,x;
- for(y=0;y<8;y++)
- {
- OLED_WrCmd(0xb0+y);
- OLED_WrCmd(0x01);
- OLED_WrCmd(0x10);
- for(x=0;x<X_WIDTH;x++)
- OLED_WrDat(bmp_dat);
- }
- }
- /*********************OLED复位************************************/
- void OLED_CLS(void)
- {
- unsigned char y,x;
- for(y=0;y<8;y++)
- {
- OLED_WrCmd(0xb0+y);
- OLED_WrCmd(0x01);
- OLED_WrCmd(0x10);
- for(x=0;x<X_WIDTH;x++)
- OLED_WrDat(0);
- }
- }
- //--------------------------------------------------------------
- // Prototype : void OLED_OFF(void)
- // Calls :
- // Parameters : none
- // Description : 让OLED休眠 -- 休眠模式下,OLED功耗不到10uA
- //--------------------------------------------------------------
- void OLED_OFF(void)
- {
- OLED_WrCmd(0X8D); //设置电荷泵
- OLED_WrCmd(0X10); //关闭电荷泵
- OLED_WrCmd(0XAE); //OLED休眠
- }
- //--------------------------------------------------------------
- // Prototype : void OLED_ON(void)
- // Calls :
- // Parameters : none
- // Description : 将OLED从休眠中唤醒
- //--------------------------------------------------------------
- void OLED_ON(void)
- {
- OLED_WrCmd(0X8D); //设置电荷泵
- OLED_WrCmd(0X14); //开启电荷泵
- OLED_WrCmd(0XAF); //OLED唤醒
- }
- /*********************OLED初始化************************************/
- void OLED_IIC_Init(void)
- {
- GPIO_InitTypeDef GPIO_InitStructure;
-
- RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE); //使能PB端口时钟
- RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);
- GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable , ENABLE);
-
- GPIO_InitStructure.GPIO_Pin = GPIO_Pin_3|GPIO_Pin_4; //端口配置
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; //推挽输出
- GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; //50M
- GPIO_Init(GPIOB, &GPIO_InitStructure);
-
- delay_ms(500);//
- OLED_WrCmd(0xae);//--turn off oled panel
- OLED_WrCmd(0x00);//---set low column address
- OLED_WrCmd(0x10);//---set high column address
- OLED_WrCmd(0x40);//--set start line address Set Mapping RAM Display Start Line (0x00~0x3F)
- OLED_WrCmd(0x81);//--set contrast control register
- OLED_WrCmd(0xFF); // Set SEG Output Current Brightness 亮度调节 0x00~0xff
- OLED_WrCmd(0xa1);//--Set SEG/Column Mapping 0xa0左右反置 0xa1正常
- OLED_WrCmd(0xc8);//Set COM/Row Scan Direction 0xc0上下反置 0xc8正常
- OLED_WrCmd(0xa6);//--set normal display
- OLED_WrCmd(0xa8);//--set multiplex ratio(1 to 64)
- OLED_WrCmd(0x3f);//--1/64 duty
- OLED_WrCmd(0xd3);//-set display offset Shift Mapping RAM Counter (0x00~0x3F)
- OLED_WrCmd(0x00);//-not offset
- OLED_WrCmd(0xd5);//--set display clock divide ratio/oscillator frequency
- OLED_WrCmd(0x80);//--set divide ratio, Set Clock as 100 Frames/Sec
- OLED_WrCmd(0xd9);//--set pre-charge period
- OLED_WrCmd(0xf1);//Set Pre-Charge as 15 Clocks & Discharge as 1 Clock
- OLED_WrCmd(0xda);//--set com pins hardware configuration
- OLED_WrCmd(0x12);
-
- OLED_WrCmd(0xdb);//--set vcomh
- OLED_WrCmd(0x40);//Set VCOM Deselect Level
- OLED_WrCmd(0x20);//-Set Page Addressing Mode (0x00/0x01/0x02)
- OLED_WrCmd(0x02);//
- OLED_WrCmd(0x8d);//--set Charge Pump enable/disable
- OLED_WrCmd(0x14);//--set(0x10) disable
-
- OLED_WrCmd(0xa4);// Disable Entire Display On (0xa4/0xa5)
- OLED_WrCmd(0xa6);// Disable Inverse Display On (0xa6/a7)
- OLED_WrCmd(0xaf);//--turn on oled panel
-
- OLED_Fill(0x00); //初始清屏
- OLED_Set_Pos(0,0);
- }
- //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)
- {
- 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;
- }
- OLED_Set_Pos(x,y+1);
- for(i=0;i<6;i++)
- OLED_WrDat(F6x8[c][i]);
- }
- /***************功能描述:显示6*8一组标准ASCII字符串 显示的坐标(x,y),y为页范围0~7****************/
- void OLED_P6x8Str(unsigned char x,unsigned char y,unsigned char ch[])
- {
- unsigned char c=0,i=0,j=0;
- while (ch[j]!='\0')
- {
- c =ch[j]-32;
- if(x>126){x=0;y++;}
- OLED_Set_Pos(x,y);
- for(i=0;i<6;i++)
- OLED_WrDat(F6x8[c][i]);
- x+=6;
- j++;
- }
- }
- /*******************功能描述:显示8*16一组标准ASCII字符串 显示的坐标(x,y),y为页范围0~7****************/
- void OLED_P8x16Str(unsigned char x,unsigned char y,unsigned char ch[])
- {
- unsigned char c=0,i=0,j=0;
- while (ch[j]!='\0')
- {
- c =ch[j]-32;
- if(x>120){x=0;y++;}
- OLED_Set_Pos(x,y);
- for(i=0;i<8;i++)
- OLED_WrDat(F8X16[c*16+i]);
- OLED_Set_Pos(x,y+1);
- for(i=0;i<8;i++)
- OLED_WrDat(F8X16[c*16+i+8]);
- x+=8;
- j++;
- }
- }
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IIC_OLED.7z
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