321 lines
6.6 KiB
C
321 lines
6.6 KiB
C
#include "oled.h"
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#include "stdlib.h"
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#include "oledfont.h"
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//OLED的显存
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//存放格式如下.
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//-----------------------------------
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//|x→[0,127] |
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//| OLED显示坐标 |
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//|y 范围 |
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//|↓ |
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//|[0,31] |
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//-----------------------------------
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/**********************************************
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//IIC Start
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**********************************************/
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void IIC_Start(void)
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{
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OLED_SCLK_Set();
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OLED_SDIN_Set();
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OLED_SDIN_Clr();
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OLED_SCLK_Clr();
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}
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/**********************************************
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//IIC Stop
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**********************************************/
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void IIC_Stop(void)
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{
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OLED_SCLK_Set();
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OLED_SDIN_Clr();
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OLED_SDIN_Set();
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}
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void IIC_Wait_Ack(void)
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{
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OLED_SCLK_Set();
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OLED_SCLK_Clr();
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}
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/**********************************************
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// IIC Write byte
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**********************************************/
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void Write_IIC_Byte(unsigned char IIC_Byte)
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{
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unsigned char i;
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unsigned char m,da;
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da=IIC_Byte;
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OLED_SCLK_Clr();
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for(i=0;i<8;i++)
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{
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m=da;
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m=m&0x80;
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if(m==0x80)
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{
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OLED_SDIN_Set();
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}
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else
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OLED_SDIN_Clr();
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da=da<<1;
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OLED_SCLK_Set();
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OLED_SCLK_Clr();
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}
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}
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/**********************************************
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// IIC Write Command
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**********************************************/
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void Write_IIC_Command(unsigned char IIC_Command)
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{
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IIC_Start();
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Write_IIC_Byte(0x78); //Slave address,SA0=0
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IIC_Wait_Ack();
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Write_IIC_Byte(0x00); //write command
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IIC_Wait_Ack();
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Write_IIC_Byte(IIC_Command);
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IIC_Wait_Ack();
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IIC_Stop();
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}
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/**********************************************
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// IIC Write Data
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**********************************************/
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void Write_IIC_Data(unsigned char IIC_Data)
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{
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IIC_Start();
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Write_IIC_Byte(0x78); //D/C#=0; R/W#=0
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IIC_Wait_Ack();
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Write_IIC_Byte(0x40); //write data
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IIC_Wait_Ack();
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Write_IIC_Byte(IIC_Data);
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IIC_Wait_Ack();
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IIC_Stop();
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}
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void OLED_WR_Byte(unsigned dat,unsigned cmd)
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{
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if(cmd)
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{
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Write_IIC_Data(dat);
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}
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else
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{
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Write_IIC_Command(dat);
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}
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}
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/********************************************
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// fill_Picture
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********************************************/
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void fill_picture(unsigned char fill_Data)
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{
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unsigned char m,n;
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for(m=0;m<8;m++)
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{
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OLED_WR_Byte(0xb0+m,0); //page0-page1
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OLED_WR_Byte(0x00,0); //low column start address
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OLED_WR_Byte(0x10,0); //high column start address
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for(n=0;n<128;n++)
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{
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OLED_WR_Byte(fill_Data,1);
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}
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}
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}
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//坐标设置
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void OLED_Set_Pos(unsigned char x, unsigned char y)
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{
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OLED_WR_Byte(0xb0+y,OLED_CMD);
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OLED_WR_Byte(((x&0xf0)>>4)|0x10,OLED_CMD);
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OLED_WR_Byte((x&0x0f),OLED_CMD);
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}
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//开启OLED显示
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void OLED_Display_On(void)
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{
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OLED_WR_Byte(0X8D,OLED_CMD); //SET DCDC命令
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OLED_WR_Byte(0X14,OLED_CMD); //DCDC ON
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OLED_WR_Byte(0XAF,OLED_CMD); //DISPLAY ON
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}
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//关闭OLED显示
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void OLED_Display_Off(void)
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{
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OLED_WR_Byte(0X8D,OLED_CMD); //SET DCDC命令
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OLED_WR_Byte(0X10,OLED_CMD); //DCDC OFF
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OLED_WR_Byte(0XAE,OLED_CMD); //DISPLAY OFF
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}
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//注意：清屏函数,清完屏,整个屏幕是黑色的!和没点亮一样!!!
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void OLED_Clear(void)
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{
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uint8_t i,n;
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for(i=0;i<8;i++)
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{
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OLED_WR_Byte (0xb0+i,OLED_CMD); //设置页地址（0~7）
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OLED_WR_Byte (0x00,OLED_CMD); //设置显示位置—列低地址
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OLED_WR_Byte (0x10,OLED_CMD); //设置显示位置—列高地址
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for(n=0;n<128;n++)
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OLED_WR_Byte(0,OLED_DATA);
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} //更新显示
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}
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void OLED_On(void)
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{
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uint8_t i,n;
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for(i=0;i<8;i++)
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{
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OLED_WR_Byte (0xb0+i,OLED_CMD); //设置页地址（0~7）
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OLED_WR_Byte (0x00,OLED_CMD); //设置显示位置—列低地址
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OLED_WR_Byte (0x10,OLED_CMD); //设置显示位置—列高地址
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for(n=0;n<128;n++)OLED_WR_Byte(1,OLED_DATA);
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} //更新显示
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}
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//在指定位置显示一个字符,包括部分字符
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//x:0~127
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//y:0~63
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//
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//size:选择字体 16/12
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void OLED_ShowChar(uint8_t x,uint8_t y,uint8_t chr,uint8_t Char_Size)
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{
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unsigned char c=0,i=0;
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c=chr-' ';//得到偏移后的值
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if(x>Max_Column-1){x=0;y=y+2;}
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if(Char_Size ==16)
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{
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OLED_Set_Pos(x,y);
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for(i=0;i<8;i++)
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{
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OLED_WR_Byte(F8X16[c*16+i],OLED_DATA);
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}
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OLED_Set_Pos(x,y+1);
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for(i=0;i<8;i++){
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OLED_WR_Byte(F8X16[c*16+i+8],OLED_DATA);
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}
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}
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else
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{
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OLED_Set_Pos(x,y);
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for(i=0;i<6;i++)
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OLED_WR_Byte(F6x8[c][i],OLED_DATA);
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}
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}
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//m^n函数
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uint32_t oled_pow(uint8_t m,uint8_t n)
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{
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uint32_t result=1;
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while(n--)result*=m;
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return result;
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}
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//显示2个数字
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//x,y :起点坐标
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//len :数字的位数
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//size:字体大小
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//
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//num:数值(0~4294967295);
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void OLED_ShowNum(uint8_t x,uint8_t y,uint32_t num,uint8_t len,uint8_t size2)
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{
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uint8_t t,temp;
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uint8_t enshow=0;
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for(t=0;t<len;t++)
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{
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temp=(num/oled_pow(10,len-t-1))%10;
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if(enshow==0&&t<(len-1))
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{
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if(temp==0)
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{
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OLED_ShowChar(x+(size2/2)*t,y,' ',size2);
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continue;
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}else
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enshow=1;
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}
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OLED_ShowChar(x+(size2/2)*t,y,temp+'0',size2);
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}
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}
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//显示一个字符号串
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void OLED_ShowString(uint8_t x,uint8_t y,uint8_t *chr,uint8_t Char_Size)
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{
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unsigned char j=0;
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while (chr[j]!='\0')
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{
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OLED_ShowChar(x,y,chr[j],Char_Size);
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x+=8;
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if(x>120)
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{
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x=0;y+=2;
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}
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j++;
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}
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}
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//显示汉字
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void OLED_ShowChinese(uint8_t x,uint8_t y,uint8_t no)
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{
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uint8_t t,adder=0;
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OLED_Set_Pos(x,y);
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for(t=0;t<16;t++)
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{
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OLED_WR_Byte(Hzk[2*no][t],OLED_DATA);
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adder+=1;
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}
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OLED_Set_Pos(x,y+1);
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for(t=0;t<16;t++)
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{
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OLED_WR_Byte(Hzk[2*no+1][t],OLED_DATA);
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adder+=1;
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}
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}
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/***********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*****************/
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void OLED_DrawBMP(unsigned char x0, unsigned char y0,unsigned char x1, unsigned char y1,unsigned char BMP[])
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{
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unsigned int j=0;
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unsigned char x,y;
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if(y1%8==0) y=y1/8;
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else y=y1/8+1;
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for(y=y0;y<y1;y++)
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{
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OLED_Set_Pos(x0,y);
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for(x=x0;x<x1;x++)
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{
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OLED_WR_Byte(BMP[j++],OLED_DATA);
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}
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}
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}
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//初始化OLED
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void OLED_Init(void)
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{
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HAL_Delay(200);
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OLED_WR_Byte(0xAE,OLED_CMD);//关闭显示
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OLED_WR_Byte(0x40,OLED_CMD);//---set low column address
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OLED_WR_Byte(0xB0,OLED_CMD);//---set high column address
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OLED_WR_Byte(0xC8,OLED_CMD);//-not offset
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OLED_WR_Byte(0x81,OLED_CMD);//设置对比度
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OLED_WR_Byte(0xff,OLED_CMD);
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OLED_WR_Byte(0xa1,OLED_CMD);//段重定向设置
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OLED_WR_Byte(0xa6,OLED_CMD);//
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OLED_WR_Byte(0xa8,OLED_CMD);//设置驱动路数
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OLED_WR_Byte(0x1f,OLED_CMD);
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OLED_WR_Byte(0xd3,OLED_CMD);
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OLED_WR_Byte(0x00,OLED_CMD);
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OLED_WR_Byte(0xd5,OLED_CMD);
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OLED_WR_Byte(0xf0,OLED_CMD);
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OLED_WR_Byte(0xd9,OLED_CMD);
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OLED_WR_Byte(0x22,OLED_CMD);
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OLED_WR_Byte(0xda,OLED_CMD);
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OLED_WR_Byte(0x02,OLED_CMD);
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OLED_WR_Byte(0xdb,OLED_CMD);
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OLED_WR_Byte(0x49,OLED_CMD);
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OLED_WR_Byte(0x8d,OLED_CMD);
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OLED_WR_Byte(0x14,OLED_CMD);
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OLED_WR_Byte(0xaf,OLED_CMD);
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OLED_Clear();
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}
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