268 lines
6.4 KiB
C
268 lines
6.4 KiB
C
#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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//向SSD1106写入一个字节。
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//dat:要写入的数据/命令
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//cmd:数据/命令标志 0,表示命令;1,表示数据;
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//向SSD1106写入一个字节。
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//dat:要写入的数据/命令
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//cmd:数据/命令标志 0,表示命令;1,表示数据;
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void OLED_WR_Byte(u8 dat,u8 cmd)
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{
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u8 i;
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if(cmd)
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OLED_DC_Set();
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else
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OLED_DC_Clr();
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OLED_CS_Clr();
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for(i=0;i<8;i++)
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{
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OLED_SCLK_Clr();
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if(dat&0x80)
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OLED_SDIN_Set();
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else
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OLED_SDIN_Clr();
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OLED_SCLK_Set();
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dat<<=1;
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}
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OLED_CS_Set();
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OLED_DC_Set();
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}
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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+2)&0xf0)>>4)|0x10,OLED_CMD);
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OLED_WR_Byte(((x+2)&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 (0x02,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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//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)
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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(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+1);
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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 size)
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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+(size/2)*t,y,' ');
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continue;
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}else enshow=1;
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}
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OLED_ShowChar(x+(size/2)*t,y,temp+'0');
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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)
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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]);
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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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GPIO_InitTypeDef GPIO_InitStructure;
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RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA|RCC_AHB1Periph_GPIOB|RCC_AHB1Periph_GPIOC|RCC_AHB1Periph_GPIOD|RCC_AHB1Periph_GPIOE|RCC_AHB1Periph_GPIOG, ENABLE);//使能PORTA~E,PORTG时钟
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//GPIO初始化设置
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5|GPIO_Pin_1|GPIO_Pin_15 ;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;//普通输出模式
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GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;//推挽输出
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GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;//100MHz
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GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;//上拉
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GPIO_Init(GPIOD, &GPIO_InitStructure);//初始化
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//GPIO初始化设置
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;//普通输出模式
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GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;//推挽输出
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GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;//100MHz
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GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;//上拉
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GPIO_Init(GPIOG, &GPIO_InitStructure);//初始化
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OLED_RST_Set();
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delay_ms(100);
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OLED_RST_Clr();
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delay_ms(200);
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OLED_RST_Set();
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OLED_WR_Byte(0xAE,OLED_CMD);//--turn off oled panel
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OLED_WR_Byte(0x02,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 Set Mapping RAM Display Start Line (0x00~0x3F)
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OLED_WR_Byte(0x81,OLED_CMD);//--set contrast control register
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OLED_WR_Byte(0xff,OLED_CMD); // Set SEG Output Current Brightness
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OLED_WR_Byte(0xA1,OLED_CMD);//--Set SEG/Column Mapping 0xa0左右反置 0xa1正常
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OLED_WR_Byte(0xC8,OLED_CMD);//Set COM/Row Scan Direction 0xc0上下反置 0xc8正常
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OLED_WR_Byte(0xA6,OLED_CMD);//--set normal display
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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);//--1/64 duty
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OLED_WR_Byte(0xD3,OLED_CMD);//-set display offset Shift Mapping RAM Counter (0x00~0x3F)
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OLED_WR_Byte(0x00,OLED_CMD);//-not offset
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OLED_WR_Byte(0xd5,OLED_CMD);//--set display clock divide ratio/oscillator frequency
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OLED_WR_Byte(0x80,OLED_CMD);//--set divide ratio, Set Clock as 100 Frames/Sec
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OLED_WR_Byte(0xD9,OLED_CMD);//--set pre-charge period
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OLED_WR_Byte(0xF1,OLED_CMD);//Set Pre-Charge as 15 Clocks & Discharge as 1 Clock
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OLED_WR_Byte(0xDA,OLED_CMD);//--set com pins hardware configuration
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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(0x40,OLED_CMD);//Set VCOM Deselect Level
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OLED_WR_Byte(0x20,OLED_CMD);//-Set Page Addressing Mode (0x00/0x01/0x02)
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OLED_WR_Byte(0x02,OLED_CMD);//
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OLED_WR_Byte(0x8D,OLED_CMD);//--set Charge Pump enable/disable
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OLED_WR_Byte(0x14,OLED_CMD);//--set(0x10) disable
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OLED_WR_Byte(0xA4,OLED_CMD);// Disable Entire Display On (0xa4/0xa5)
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OLED_WR_Byte(0xA6,OLED_CMD);// Disable Inverse Display On (0xa6/a7)
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OLED_WR_Byte(0xAF,OLED_CMD);//--turn on oled panel
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OLED_WR_Byte(0xAF,OLED_CMD); /*display ON*/
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OLED_Clear();
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OLED_Set_Pos(0,0);
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}
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