forked from logzhan/RobotHardware-UESTC
303 lines
7.0 KiB
C
303 lines
7.0 KiB
C
/*
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********************************************************************************************************
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文件名：oled.c
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功 能：oled的iic方式驱动
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备 注：
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淘 宝：https://shop60670850.taobao.com
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作 者：lilianhe
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日 期: 2017-2-8
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*********************************************************************************************************
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*/
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/*
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********************************************************************************************************
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更新日志：
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1.2017-2-8，修改oled底层，调通ok
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2.2017-2-8，硬件修改，SCL PA10，SDA PA11
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*********************************************************************************************************
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*/
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#include "oled.h"
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#include "stdlib.h"
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#include "oledfont.h"
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#include "delay.h"
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#include "bsp_iic.h"
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//OLED的显存
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//存放格式如下.
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//[0]0 1 2 3 ... 127
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//[1]0 1 2 3 ... 127
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//[2]0 1 2 3 ... 127
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//[3]0 1 2 3 ... 127
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//[4]0 1 2 3 ... 127
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//[5]0 1 2 3 ... 127
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//[6]0 1 2 3 ... 127
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//[7]0 1 2 3 ... 127
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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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IIC_Send_Byte(0x78); //Slave address,SA0=0
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IIC_Wait_Ack();
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IIC_Send_Byte(0x00); //write command
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IIC_Wait_Ack();
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IIC_Send_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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IIC_Send_Byte(0x78); //D/C#=0; R/W#=0
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IIC_Wait_Ack();
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IIC_Send_Byte(0x40); //write data
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IIC_Wait_Ack();
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IIC_Send_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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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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/***********************Delay****************************************/
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void Delay_50ms(unsigned int Del_50ms)
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{
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unsigned int m;
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for(;Del_50ms>0;Del_50ms--)
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for(m=6245;m>0;m--);
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}
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void Delay_1ms(unsigned int Del_1ms)
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{
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unsigned char j;
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while(Del_1ms--)
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{
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for(j=0;j<123;j++);
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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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//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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u8 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(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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u8 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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//mode:0,反白显示;1,正常显示
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//size:选择字体 16/12
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void OLED_ShowChar(u8 x,u8 y,u8 chr,u8 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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OLED_WR_Byte(F8X16[c*16+i],OLED_DATA);
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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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else {
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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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u32 oled_pow(u8 m,u8 n)
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{
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u32 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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//mode:模式 0,填充模式;1,叠加模式
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//num:数值(0~4294967295);
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void OLED_ShowNum(u8 x,u8 y,u32 num,u8 len,u8 size2)
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{
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u8 t,temp;
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u8 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 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(u8 x,u8 y,u8 *chr,u8 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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{ OLED_ShowChar(x,y,chr[j],Char_Size);
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x+=8;
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if(x>120){x=0;y+=2;}
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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(u8 x,u8 y,u8 no)
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{
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u8 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SSD1306
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void OLED_Init(void)
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{
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IIC_Init();
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Delay_ms(800);
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OLED_WR_Byte(0xAE,OLED_CMD); // Display off
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OLED_WR_Byte(0x00,OLED_CMD); // set low column address
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OLED_WR_Byte(0x10,OLED_CMD); // set high column address
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OLED_WR_Byte(0x40,OLED_CMD); // set start line address
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OLED_WR_Byte(0xB0,OLED_CMD); // set page address
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OLED_WR_Byte(0x81,OLED_CMD); // contract control
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OLED_WR_Byte(0xFF,OLED_CMD); // 128
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OLED_WR_Byte(0xA1,OLED_CMD); // set segment remap
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OLED_WR_Byte(0xA6,OLED_CMD); // normal / reverse
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OLED_WR_Byte(0xA8,OLED_CMD); // set multiplex ratio(1 to 64)
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OLED_WR_Byte(0x3F,OLED_CMD); // 1/32 duty
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OLED_WR_Byte(0xC8,OLED_CMD); // Com scan direction
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OLED_WR_Byte(0xD3,OLED_CMD); // Set display offset
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OLED_WR_Byte(0x00,OLED_CMD);
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OLED_WR_Byte(0xD5,OLED_CMD); // set osc division
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OLED_WR_Byte(0x80,OLED_CMD); //
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OLED_WR_Byte(0xD8,OLED_CMD); // set area color mode off
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OLED_WR_Byte(0x05,OLED_CMD); //
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OLED_WR_Byte(0xD9,OLED_CMD); // Set Pre-Charge Period
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OLED_WR_Byte(0xF1,OLED_CMD); //
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OLED_WR_Byte(0xDA,OLED_CMD); // set com pin configuartion
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OLED_WR_Byte(0x12,OLED_CMD); //
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OLED_WR_Byte(0xDB,OLED_CMD); // set Vcomh
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OLED_WR_Byte(0x30,OLED_CMD); //
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OLED_WR_Byte(0x8D,OLED_CMD); // set charge pump enable
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OLED_WR_Byte(0x14,OLED_CMD);
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OLED_WR_Byte(0xAF,OLED_CMD); // turn on oled panel
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}
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