#include "oled.h" #include "oledfont.h" #include "main.h" uint8_t OLED_GRAM[144][8]; extern bool interface_work ; //画点 //x:0~127 //y:0~63 //t:1 填充 0,清空 void OLED_DrawPoint(uint8_t x,uint8_t y,uint8_t t) { uint8_t i,m,n; i=y/8; m=y%8; n=1<0)incx=1; //设置单步方向 else if (delta_x==0)incx=0;//垂直线 else {incx=-1;delta_x=-delta_x;} if(delta_y>0)incy=1; else if (delta_y==0)incy=0;//水平线 else {incy=-1;delta_y=-delta_x;} if(delta_x>delta_y)distance=delta_x; //选取基本增量坐标轴 else distance=delta_y; for(t=0;tdistance) { xerr-=distance; uRow+=incx; } if(yerr>distance) { yerr-=distance; uCol+=incy; } } } //x,y:圆心坐标 //r:圆的半径 void OLED_DrawCircle(uint8_t x,uint8_t y,uint8_t r) { int a, b,num; a = 0; b = r; while(2 * b * b >= r * r) { OLED_DrawPoint(x + a, y - b,1); OLED_DrawPoint(x - a, y - b,1); OLED_DrawPoint(x - a, y + b,1); OLED_DrawPoint(x + a, y + b,1); OLED_DrawPoint(x + b, y + a,1); OLED_DrawPoint(x + b, y - a,1); OLED_DrawPoint(x - b, y - a,1); OLED_DrawPoint(x - b, y + a,1); a++; num = (a * a + b * b) - r*r;//计算画的点离圆心的距离 if(num > 0) { b--; a--; } } } void OLED_WR_Byte(uint8_t dat,uint8_t cmd) { uint8_t i; if(cmd) { OLED_DC_Set(); } else OLED_DC_Clr(); OLED_CS_Clr(); for(i=0;i<8;i++) { OLED_SCL_Clr(); if(dat&0x80) { OLED_SDA_Set(); } else OLED_SDA_Clr(); OLED_SCL_Set(); dat<<=1; } OLED_CS_Set(); OLED_DC_Set(); } //反显函数 void OLED_ColorTurn(uint8_t i) { if(i==0) { OLED_WR_Byte(0xA6,OLED_CMD);//正常显示 } if(i==1) { OLED_WR_Byte(0xA7,OLED_CMD);//反色显示 } } //屏幕旋转180度 void OLED_DisplayTurn(uint8_t i) { if(i==0) { OLED_WR_Byte(0xC8,OLED_CMD);//正常显示 OLED_WR_Byte(0xA1,OLED_CMD); } if(i==1) { OLED_WR_Byte(0xC0,OLED_CMD);//反转显示 OLED_WR_Byte(0xA0,OLED_CMD); } } //开启OLED显示 void OLED_DisPlay_On(void) { OLED_WR_Byte(0x8D,OLED_CMD);//电荷泵使能 OLED_WR_Byte(0x14,OLED_CMD);//开启电荷泵 OLED_WR_Byte(0xAF,OLED_CMD);//点亮屏幕 } //关闭OLED显示 void OLED_DisPlay_Off(void) { OLED_WR_Byte(0x8D,OLED_CMD);//电荷泵使能 OLED_WR_Byte(0x10,OLED_CMD);//关闭电荷泵 OLED_WR_Byte(0xAE,OLED_CMD);//关闭屏幕 } //更新显存到OLED void OLED_Refresh(void) { uint8_t 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(0x02,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); } } //清屏函数 void OLED_Clear(void) { uint8_t i,n; for(i=0;i<8;i++) { for(n=0;n<128;n++) { OLED_GRAM[n][i]=0;//清除所有数据 } } OLED_Refresh();//更新显示 #ifdef ClearOled #if ClearOled == 1 printf("Clear_OLED\r\n"); #endif #endif } //在指定位置显示一个字符,包括部分字符 //x:0~127 //y:0~63 //size1:选择字体 6x8/6x12/8x16/12x24 //mode:0,反色显示;1,正常显示 void OLED_ShowChar(uint8_t x,uint8_t y,uint8_t chr,uint8_t size1,uint8_t mode) { uint8_t i,m,temp,size2,chr1; uint8_t x0=x,y0=y; if(size1==8)size2=6; else size2=(size1/8+((size1%8)?1:0))*(size1/2); //得到字体一个字符对应点阵集所占的字节数 chr1=chr-' '; //计算偏移后的值 for(i=0;i>=1; y++; } x++; if((size1!=8)&&((x-x0)==size1/2)) {x=x0;y0=y0+8;} y=y0; } } //显示字符串 //x,y:起点坐标 //size1:字体大小 //*chr:字符串起始地址 //mode:0,反色显示;1,正常显示 void OLED_ShowString(uint8_t x,uint8_t y,uint8_t *chr,uint8_t size1,uint8_t mode) { while((*chr>=' ')&&(*chr<='~'))//判断是不是非法字符! { OLED_ShowChar(x,y,*chr,size1,mode); if(size1==8)x+=6; else x+=size1/2; chr++; } } //m^n uint32_t OLED_Pow(uint8_t m,uint8_t n) { uint32_t result=1; while(n--) { result*=m; } return result; } //显示数字 //x,y :起点坐标 //num :要显示的数字 //len :数字的位数 //size:字体大小 //mode:0,反色显示;1,正常显示 void OLED_ShowNum(uint8_t x,uint8_t y,uint32_t num,uint8_t len,uint8_t size1,uint8_t mode) { uint8_t t,temp,m=0; if(size1==8)m=2; for(t=0;t>=1; y++; } x++; if((x-x0)==size1) {x=x0;y0=y0+8;} y=y0; } } //num 显示汉字的个数 //space 每一遍显示的间隔 //mode:0,反色显示;1,正常显示 void OLED_ScrollDisplay(uint8_t num,uint8_t space,uint8_t mode) { uint8_t i,n,t=0,m=0,r; while(1) { if(m==0) { OLED_ShowChinese(128,24,t,16,mode); //写入一个汉字保存在OLED_GRAM[][]数组中 t++; } if(t==num) { for(r=0;r<16*space;r++) //显示间隔 { for(i=1;i<144;i++) { for(n=0;n<8;n++) { OLED_GRAM[i-1][n]=OLED_GRAM[i][n]; } } OLED_Refresh(); } t=0; } m++; if(m==16){m=0;} for(i=1;i<144;i++) //实现左移 { for(n=0;n<8;n++) { OLED_GRAM[i-1][n]=OLED_GRAM[i][n]; } } OLED_Refresh(); } } //x,y：起点坐标 //sizex,sizey,图片长宽 //BMP[]：要写入的图片数组 //mode:0,反色显示;1,正常显示 void OLED_ShowPicture(uint8_t x,uint8_t y,uint8_t sizex,uint8_t sizey,uint8_t BMP[],uint8_t mode) { uint16_t j=0; uint8_t i,n,temp,m; uint8_t x0=x,y0=y; sizey=sizey/8+((sizey%8)?1:0); for(n=0;n>=1; y++; } x++; if((x-x0)==sizex) { x=x0; y0=y0+8; } y=y0; } } } //OLED的初始化 void OLED_Init(void) { GPIO_InitTypeDef GPIO_InitStructure; GPIO_InitStructure.Pin = GPIO_PIN_5|GPIO_PIN_7; GPIO_InitStructure.Mode = GPIO_MODE_OUTPUT_PP; GPIO_InitStructure.Speed = GPIO_SPEED_FREQ_MEDIUM;//速度50MHz HAL_GPIO_Init(GPIOA, &GPIO_InitStructure); HAL_GPIO_WritePin(GPIOA,GPIO_PIN_5|GPIO_PIN_7,GPIO_PIN_SET); OLED_RES_Clr(); HAL_Delay(200); OLED_RES_Set(); OLED_WR_Byte(0xAE,OLED_CMD); /*display off*/ OLED_WR_Byte(0x02,OLED_CMD); /*set lower column address*/ OLED_WR_Byte(0x10,OLED_CMD); /*set higher column address*/ OLED_WR_Byte(0x40,OLED_CMD); /*set display start line*/ OLED_WR_Byte(0xB0,OLED_CMD); /*set page address*/ OLED_WR_Byte(0x81,OLED_CMD); /*contract control*/ OLED_WR_Byte(0xcf,OLED_CMD); /*128*/ OLED_WR_Byte(0xA1,OLED_CMD); /*set segment remap*/ OLED_WR_Byte(0xA6,OLED_CMD); /*normal / reverse*/ OLED_WR_Byte(0xA8,OLED_CMD); /*multiplex ratio*/ OLED_WR_Byte(0x3F,OLED_CMD); /*duty = 1/64*/ OLED_WR_Byte(0xad,OLED_CMD); /*set charge pump enable*/ OLED_WR_Byte(0x8b,OLED_CMD); /* 0x8B 内供 VCC */ OLED_WR_Byte(0x33,OLED_CMD); /*0X30---0X33 set VPP 9V */ OLED_WR_Byte(0xC8,OLED_CMD); /*Com scan direction*/ OLED_WR_Byte(0xD3,OLED_CMD); /*set display offset*/ OLED_WR_Byte(0x00,OLED_CMD); /* 0x20 */ OLED_WR_Byte(0xD5,OLED_CMD); /*set osc division*/ OLED_WR_Byte(0x80,OLED_CMD); OLED_WR_Byte(0xD9,OLED_CMD); /*set pre-charge period*/ OLED_WR_Byte(0x1f,OLED_CMD); /*0x22*/ OLED_WR_Byte(0xDA,OLED_CMD); /*set COM pins*/ OLED_WR_Byte(0x12,OLED_CMD); OLED_WR_Byte(0xdb,OLED_CMD); /*set vcomh*/ OLED_WR_Byte(0x40,OLED_CMD); OLED_Clear(); OLED_WR_Byte(0xAF,OLED_CMD); /*display ON*/ //printf("ok"); }