目的:仅做个人学习总结备忘
所用单片机型号为:STM32F103C8
引脚定义及端口配置见 OLED.H、OLED.C
显示的图片代码见BMP.H
显示的文字代码见OLEDFONT.H
- OLED.h
#ifndef __OLED_H
#define __OLED_H
#include "sys.h"
#include "stdlib.h"
/**************OLED_VDD引脚定义****************/
#define PORT_OLED_VDD GPIOA
#define PIN_OLED_VDD GPIO_PIN_15
/**************OLED其他引脚定义****************/
#define PORT_OLED_CS GPIOB
#define PORT_OLED_SCK GPIOB
#define PORT_OLED_MOSI GPIOB
#define PORT_OLED_RES GPIOB
#define PORT_OLED_DC GPIOB
#define PORT_OLED_ALL PORT_OLED_CS|PORT_OLED_SCK|PORT_OLED_MOSI|PORT_OLED_RES|PORT_OLED_RES|PORT_OLED_DC
#define PIN_OLED_SCK GPIO_PIN_1
#define PIN_OLED_MOSI GPIO_PIN_2
#define PIN_OLED_CS GPIO_PIN_3
#define PIN_OLED_DC GPIO_PIN_4
#define PIN_OLED_RES GPIO_PIN_5
#define PIN_OLED_ALL PIN_OLED_SCK|PIN_OLED_MOSI|PIN_OLED_CS|PIN_OLED_DC|PIN_OLED_RES
/**************OLED_VDD开、关****************/
#define OLED_POWER_ON() HAL_GPIO_WritePin(PORT_OLED_VDD, PIN_OLED_VDD, GPIO_PIN_SET)
#define OLED_POWER_OFF() HAL_GPIO_WritePin(PORT_OLED_VDD, PIN_OLED_VDD, GPIO_PIN_RESET)
//OLED模式设置
//0:4线串行模式
//1:并行8080模式
#define OLED_MODE 0
#define SIZE 16
#define XLevelL 0x00 //0x02
#define XLevelH 0x10
#define Max_Column 128
#define Max_Row 64
#define Brightness 0xFF
#define X_WIDTH 128
#define Y_WIDTH 64
////-----------------测试LED端口定义----------------
//#define PORT_LED GPIOA
//#define PIN_LED GPIO_PIN_7
////#define LED_ON GPIO_ResetBits(PORT_LED,PIN_LED)//DC
////#define LED_OFF GPIO_SetBits(PORT_LED,PIN_LED)
///* 定义控制IO的宏 */
//#define LED_TOGGLE digitalToggle(PORT_LED,PIN_LED)
//#define LED_OFF digitalHi(PORT_LED,PIN_LED)
//#define LED_ON digitalLo(PORT_LED,PIN_LED)
///* 直接操作寄存器的方法控制IO */
//#define digitalHi(p,i) {p->BSRR=i;} //输出为高电平
//#define digitalLo(p,i) {p->BRR=i;} //输出低电平
//#define digitalToggle(p,i) {p->ODR ^=i;} //输出反转状态
//-----------------OLED端口复位置位----------------
#define OLED_SCLK_Clr() HAL_GPIO_WritePin(PORT_OLED_SCK,PIN_OLED_SCK,GPIO_PIN_RESET)//CLK
#define OLED_SCLK_Set() HAL_GPIO_WritePin(PORT_OLED_SCK,PIN_OLED_SCK,GPIO_PIN_SET)
#define OLED_SDIN_Clr() HAL_GPIO_WritePin(PORT_OLED_MOSI,PIN_OLED_MOSI,GPIO_PIN_RESET)//DIN
#define OLED_SDIN_Set() HAL_GPIO_WritePin(PORT_OLED_MOSI,PIN_OLED_MOSI,GPIO_PIN_SET)
#define OLED_RST_Clr() HAL_GPIO_WritePin(PORT_OLED_RES,PIN_OLED_RES,GPIO_PIN_RESET)//RES
#define OLED_RST_Set() HAL_GPIO_WritePin(PORT_OLED_RES,PIN_OLED_RES,GPIO_PIN_SET)
#define OLED_DC_Clr() HAL_GPIO_WritePin(PORT_OLED_DC,PIN_OLED_DC,GPIO_PIN_RESET)//DC
#define OLED_DC_Set() HAL_GPIO_WritePin(PORT_OLED_DC,PIN_OLED_DC,GPIO_PIN_SET)
#define OLED_CS_Clr() HAL_GPIO_WritePin(PORT_OLED_CS,PIN_OLED_CS,GPIO_PIN_RESET)//CS
#define OLED_CS_Set() HAL_GPIO_WritePin(PORT_OLED_CS,PIN_OLED_CS,GPIO_PIN_SET)
#define OLED_CMD 0 //写命令
#define OLED_DATA 1 //写数据
//OLED控制用函数
void OLED_WR_Byte(uint8_t dat,uint8_t cmd);
void OLED_Display_On(void);
void OLED_Display_Off(void);
void OLED_Init(void);
void OLED_Clear(void);
void OLED_DrawPoint(uint8_t x,uint8_t y,uint8_t t);
void OLED_Fill(uint8_t x1,uint8_t y1,uint8_t x2,uint8_t y2,uint8_t dot);
void OLED_ShowChar(uint8_t x,uint8_t y,uint8_t chr);
void OLED_ShowNum(uint8_t x,uint8_t y,uint32_t num,uint8_t len,uint8_t size);
void OLED_ShowString(uint8_t x,uint8_t y, uint8_t *p);
void OLED_Set_Pos(unsigned char x, unsigned char y);
void OLED_ShowCHinese(uint8_t x,uint8_t y,uint8_t no);
void OLED_DrawBMP(unsigned char x0, unsigned char y0,unsigned char x1, unsigned char y1,unsigned char BMP[]);
#endif
- OLED.c
#include "oled.h"
#include "oledfont.h"
//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;
}
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+2)&0xf0)>>4)|0x10,OLED_CMD);
OLED_WR_Byte(((x+2)&0x0f),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 (0x02,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');
}
}
//显示一个字符号串
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++)
{