OLED显示屏STM32HAL库版

#include "oled.h" #include "stdlib.h" #include "oledfont.h" #include "codetab.h" void OLED_DrawBMP2(unsigned char x0,unsigned char y0,unsigned char x1,unsigned char y1,unsigned char BMP[]) { unsigned int j=0; unsigned char x,y; if(y1%8==0) y = y1/8; else y = y1/8 + 1; for(y=y0;y<y1;y++) { OLED_Set_Pos(x0,y); for(x=x0;x<x1;x++) { OLED_WR_Byte(BMP[j++],OLED_DATA); } } } /****************************************************************/ //OLED的显存 //存放格式如下. //[0]0 1 2 3 ... 127 //[1]0 1 2 3 ... 127 //[2]0 1 2 3 ... 127 //[3]0 1 2 3 ... 127 //[4]0 1 2 3 ... 127 //[5]0 1 2 3 ... 127 //[6]0 1 2 3 ... 127 //[7]0 1 2 3 ... 127 //#if OLED_MODE==1 ////向SSD1106写入一个字节。 ////dat:要写入的数据/命令 ////cmd:数据/命令标志 0,表示命令;1,表示数据; //void OLED_WR_Byte(uint8_t dat,uint8_t cmd) //{ // DATAOUT(dat); // if(cmd) // OLED_DC_Set(); // else // OLED_DC_Clr(); // OLED_CS_Clr(); // OLED_WR_Clr(); // OLED_WR_Set(); // OLED_CS_Set(); // OLED_DC_Set(); //} //#else //向SSD1106写入一个字节。 //dat:要写入的数据/命令 //cmd:数据/命令标志 0,表示命令;1,表示数据; 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_SCLK_Clr(); if(dat&0x80) OLED_SDIN_Set(); else OLED_SDIN_Clr(); OLED_SCLK_Set(); dat<<=1; } //SPI1_ReadWriteByte(dat);//SPI写入数据 OLED_CS_Set(); OLED_CS_Set(); OLED_DC_Set(); } //#endif void OLED_Set_Pos(unsigned char x, unsigned char y) { OLED_WR_Byte(0xb0+y,OLED_CMD); OLED_WR_Byte(((x&0xf0)>>4)|0x10,OLED_CMD); OLED_WR_Byte((x&0x0f)|0x01,OLED_CMD); } //开启OLED显示 void OLED_Display_On(void) { OLED_WR_Byte(0X8D,OLED_CMD); //SET DCDC命令 OLED_WR_Byte(0X14,OLED_CMD); //DCDC ON OLED_WR_Byte(0XAF,OLED_CMD); //DISPLAY ON } //关闭OLED显示 void OLED_Display_Off(void) { OLED_WR_Byte(0X8D,OLED_CMD); //SET DCDC命令 OLED_WR_Byte(0X10,OLED_CMD); //DCDC OFF OLED_WR_Byte(0XAE,OLED_CMD); //DISPLAY OFF } //清屏函数,清完屏,整个屏幕是黑色的!和没点亮一样!!! void OLED_Clear(void) { uint8_t i,n; for(i=0;i<8;i++) { OLED_WR_Byte (0xb0+i,OLED_CMD); //设置页地址（0~7） OLED_WR_Byte (0x00,OLED_CMD); //设置显示位置—列低地址 OLED_WR_Byte (0x10,OLED_CMD); //设置显示位置—列高地址 for(n=0;n<128;n++) OLED_WR_Byte(0,OLED_DATA); } //更新显示 } //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(uint8_t x,uint8_t y,uint8_t 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;} if(SIZE ==16) { OLED_Set_Pos(x,y); for(i=0;i<8;i++) OLED_WR_Byte(F8X16[c*16+i],OLED_DATA); OLED_Set_Pos(x,y+1); for(i=0;i<8;i++) OLED_WR_Byte(F8X16[c*16+i+8],OLED_DATA); } else { OLED_Set_Pos(x,y+1); for(i=0;i<6;i++) OLED_WR_Byte(F6x8[c][i],OLED_DATA); } } //m^n函数 uint32_t oled_pow(uint8_t m,uint8_t n) { uint32_t result=1; while(n--) result*=m; return result; } //显示2个数字 //x,y :起点坐标 //len :数字的位数 //size:字体大小 //mode:模式 0,填充模式;1,叠加模式 //num:数值(0~4294967295); void OLED_ShowNum(uint8_t x,uint8_t y,uint32_t num,uint8_t len,uint8_t size) { uint8_t t,temp; uint8_t enshow=0; for(t=0;t<len;t++) { temp=(num/oled_pow(10,len-t-1))%10; if(enshow==0&&t<(len-1)) { if(temp==0) { OLED_ShowChar(x+(size/2)*t,y,' '); continue; }else enshow=1; } OLED_ShowChar(x+(size/2)*t,y,temp+'0'); } } void OLED_ShowArrStr(unsigned char x, unsigned char y, unsigned char ch[],uint8_t nlens) { unsigned char c = 0,i = 0,j = 0,l = 0; for(l=0;l<21;l++) { if(l<nlens) c = ch[j] - 32; else c = 0; if(x > 126) { x = 0; y++; } OLED_Set_Pos(x,y); for(i=0;i<6;i++) OLED_WR_Byte(F6x8[c][i],OLED_DATA); x += 6; j++; } } //-------------------------------------------------------------- // Prototype : void OLED_ShowChar(unsigned char x, unsigned char y, unsigned char ch[], unsigned char TextSize) // Calls : // Parameters : x,y -- 起始点坐标(x:0~127, y:0~7); ch[] -- 要显示的字符串; TextSize -- 字符大小(1:6*8 ; 2:8*16) // Description : 显示codetab.h中的ASCII字符，有6*8和8*16可选择 //-------------------------------------------------------------- void OLED_ShowStr(unsigned char x, unsigned char y, unsigned char ch[], unsigned char TextSize) { unsigned char c = 0,i = 0,j = 0; switch(TextSize) { case 1: { 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_WR_Byte(F6x8[c][i],OLED_DATA); x += 6; j++; } } break; case 2: { 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_WR_Byte(F8X16[c*16+i],OLED_DATA); OLED_Set_Pos(x,y+1); for(i=0;i<8;i++) OLED_WR_Byte(F8X16[c*16+i+8],OLED_DATA); x += 8; j++; } } break; } } //显示一个字符号串 //X从0开始计数 //Y第一行值为0，第二行为2，依次为 0 2 4 6 ,第一行显示系统状态，比如初始化成功，当前时间等，第二行显示服务器信息，第三行显示车辆信息，第四行显示温湿度值 void OLED_ShowString(uint8_t x,uint8_t y,uint8_t *chr) { unsigned char j=0; while (chr[j]!='\0') { OLED_ShowChar(x,y,chr[j]); x+=8; if(x>120) {x=0;y+=2;} j++; } } //显示汉字 void OLED_ShowCHinese(uint8_t x,uint8_t y,uint8_t no) { uint8_t t,adder=0; OLED_Set_Pos(x,y); for(t=0;t<16;t++) { OLED_WR_Byte(Hzk[2*no][t],OLED_DATA); adder+=1; } OLED_Set_Pos(x,y+1); for(t=0;t<16;t++) { OLED_WR_Byte(Hzk[2*no+1][t],OLED_DATA); adder+=1; } } /***********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*****************/ void OLED_DrawBMP(unsigned char x0, unsigned char y0,unsigned char x1, unsigned char y1,unsigned char BMP[]) { unsigned int j=0; unsigned char x,y; if(y1%8==0) y=y1/8; else y=y1/8+1; for(y=y0;y<y1;y++) { OLED_Set_Pos(x0,y); for(x=x0;x<x1;x++) { OLED_WR_Byte(BMP[j++],OLED_DATA); } } } //初始化SSD1306 /* OLED接线： GND ----- GND VCC ----- 3.3V CLK ----- PB13 MOSI ---- PB14 RES ----- PB15 DC ------ PC6 CS ------ PB12 */ void OLED_Init(void) { GPIO_InitTypeDef GPIO_InitStruct; OLED_PIN_CLK(); GPIO_InitStruct.Pin = OLED_PIN; GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH; HAL_GPIO_Init(OLED_PORT, &GPIO_InitStruct); HAL_GPIO_WritePin(OLED_PORT,OLED_PIN,GPIO_PIN_RESET); OLED_RST_Set(); HAL_Delay(100); OLED_RST_Clr(); HAL_Delay(200); OLED_RST_Set(); OLED_WR_Byte(0xAE,OLED_CMD); //--turn off oled panel OLED_WR_Byte(0x00,OLED_CMD); //---set low column address OLED_WR_Byte(0x10,OLED_CMD); //---set high column address OLED_WR_Byte(0x40,OLED_CMD); //--set start line address Set Mapping RAM Display Start Line (0x00~0x3F) OLED_WR_Byte(0x81,OLED_CMD); //--set contrast control register OLED_WR_Byte(0xCF,OLED_CMD); // Set SEG Output Current Brightness OLED_WR_Byte(0xA1,OLED_CMD); //--Set SEG/Column Mapping 0xa0左右反置 0xa1正常 OLED_WR_Byte(0xC8,OLED_CMD); //Set COM/Row Scan Direction 0xc0上下反置 0xc8正常 OLED_WR_Byte(0xA6,OLED_CMD); //--set normal dis