- #define ALLOCATE_EXTERN
- #include "HC89F0541.h"
- #include "oledfont.h"
- #include "oled.h"
- #define SCL P0_1 //I2C时钟控制位
- #define SDA P0_0 //I2C数据传送位
- //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
- /**
- * @说明 延时函数
- * @参数 fui_i : 延时时间
- * @返回值 无
- * @注 Fcpu = 16MHz,fui_i = 1时,延时时间约为1Ms
- */
- void Delay_ms(unsigned int fui_i)
- {
- unsigned int fui_j;
- for(;fui_i > 0;fui_i --)
- for(fui_j = 1596;fui_j > 0;fui_j --);
- }
- /**
- * [url=home.php?mod=space&uid=247401]@brief[/url] Write_I2C_Data 向OLED写入数据
- * @param I2C_Data:数据
- * @retval 无
- */
- static void Write_I2C_Data(uint8_t I2C_Data)//写数据
- {
-
- IICCON &=~ 0x08; //清除中断标志位
- IICCON |= 0x20; //起始位发送起始信号
- while((!(IICCON&0x08))&&(IICSTA!=0x08));
- IICCON &=~ 0x20; //起始位停止起始信号
-
- IICCON &=~ 0x08; //清除中断标志位
- IICDAT = OLED_ADDS; //写入器件地址
- while(IICSTA!=0x18);
-
- IICCON &=~ 0x08; //清除中断标志位
- IICDAT = 0x40; //写入地址
- while(IICSTA!=0x28);
- IICCON &=~ 0x08; //清除中断标志位
- IICDAT = I2C_Data; //写入数据
- while(IICSTA!=0x28);
- IICCON &=~ 0x08; //清除中断标志位
- IICCON |= 0x10; //停止位发送停止信号
-
- }
- /**
- * [url=home.php?mod=space&uid=247401]@brief[/url] Write_I2C_Command,向OLED写入命令
- * @param I2C_Command
- * @retval 无
- */
- static void Write_I2C_Command(uint8_t I2C_Command)//写命令
- {
- IICCON &=~ 0x08; //清除中断标志位
- IICCON |= 0x20; //起始位发送起始信号
- while((!(IICCON&0x08))&&(IICSTA!=0x08));
- IICCON &=~ 0x20; //起始位停止起始信号
-
- IICCON &=~ 0x08; //清除中断标志位
- IICDAT = OLED_ADDS; //写入器件地址
- while(IICSTA!=0x18);
-
- IICCON &=~ 0x08; //清除中断标志位
- IICDAT = 0x00; //写入地址
- while(IICSTA!=0x28);
- IICCON &=~ 0x08; //清除中断标志位
- IICDAT = I2C_Command; //写入数据
- while(IICSTA!=0x28);
- IICCON &=~ 0x08; //清除中断标志位
- IICCON |= 0x10; //停止位发送停止信号
- }
- void OLED_WR_Byte(unsigned dat,unsigned cmd)
- {
- if(cmd)
- Write_I2C_Data(dat);
- else
- Write_I2C_Command(dat);
- }
- /********************************************
- // fill_Picture
- ********************************************/
- void fill_picture(uint8_t fill_Data)
- {
- uint8_t m,n;
- for(m=0; m<8; m++)
- {
- OLED_WR_Byte(0xb0+m,0); //page0-page1
- OLED_WR_Byte(0x00,0); //low column start address
- OLED_WR_Byte(0x10,0); //high column start address
- for(n=0; n<128; n++)
- {
- OLED_WR_Byte(fill_Data,1);
- }
- }
- }
- //坐标设置
- void OLED_Set_Pos(uint8_t x, uint8_t y)
- {
- OLED_WR_Byte(0xb0+y, OLED_CMD);
- OLED_WR_Byte(((x&0xf0)>>4)|0x10, OLED_CMD);
- OLED_WR_Byte((x&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 (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);
- }
- }
- void OLED_ON(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(1, OLED_DATA);
- }
- }
- //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,uint8_t Char_Size)
- {
- uint8_t c=0,i=0;
- c=chr-' ';//得到偏移后的值
- if(x>Max_Column-1)
- {
- x = 0;
- y = y+2;
- }
- if(Char_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);
- 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 size2)
- {
- 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+(size2/2)*t, y, ' ', size2);
- continue;
- }
- else
- enshow = 1;
- }
- OLED_ShowChar(x+(size2/2)*t, y, temp+'0', size2);
- }
- }
- //显示一个字符号串
- void OLED_ShowString(uint8_t x, uint8_t y, char *chr, uint8_t Char_Size)
- {
- uint8_t j=0;
- while (chr[j] != '\0')
- {
- OLED_ShowChar(x, y, chr[j], Char_Size);
- 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(uint8_t x0, uint8_t y0,uint8_t x1, uint8_t y1, uint8_t BMP[])
- {
- unsigned int j=0;
- uint8_t 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
- void OLED_Init(void)
- {
- Delay_ms(100);
- OLED_WR_Byte(0xAE,OLED_CMD);//关闭显示
-
- OLED_WR_Byte(0x40,OLED_CMD);//---set low column address
- OLED_WR_Byte(0xB0,OLED_CMD);//---set high column address
- OLED_WR_Byte(0xC8,OLED_CMD);//-not offset
- OLED_WR_Byte(0x81,OLED_CMD);//设置对比度
- OLED_WR_Byte(0xff,OLED_CMD);
- OLED_WR_Byte(0xa1,OLED_CMD);//段重定向设置
- OLED_WR_Byte(0xa6,OLED_CMD);//
-
- OLED_WR_Byte(0xa8,OLED_CMD);//设置驱动路数
- OLED_WR_Byte(0x1f,OLED_CMD);
-
- OLED_WR_Byte(0xd3,OLED_CMD);
- OLED_WR_Byte(0x00,OLED_CMD);
-
- OLED_WR_Byte(0xd5,OLED_CMD);
- OLED_WR_Byte(0xf0,OLED_CMD);
-
- OLED_WR_Byte(0xd9,OLED_CMD);
- OLED_WR_Byte(0x22,OLED_CMD);
-
- OLED_WR_Byte(0xda,OLED_CMD);
- OLED_WR_Byte(0x02,OLED_CMD);
-
- OLED_WR_Byte(0xdb,OLED_CMD);
- OLED_WR_Byte(0x49,OLED_CMD);
-
- OLED_WR_Byte(0x8d,OLED_CMD);
- OLED_WR_Byte(0x14,OLED_CMD);
-
- OLED_WR_Byte(0xaf,OLED_CMD);
- OLED_Clear();
- }
- /***************************************************************************************
- * @实现效果 对24C02进行读写操作
- ***************************************************************************************/
- void main()
- {
- /************************************系统初始化****************************************/
- CLKSWR = 0x51; //选择内部高频RC为系统时钟,内部高频RC 2分频,Fosc =16MHz
- CLKDIV = 0x01; //Fosc 1分频得到Fcpu,Fcpu=16MHz
- /**********************************IIC配置初始化***************************************/
- P0M1 = 0xC2; //P01设置为推挽输出
- P0M0 = 0xE6; //P03设置为带上拉开漏输出
- SCL_MAP = 0x01; //SCL映射P01口
- SDA_MAP = 0x00; //SDA映射P00口
- IICCON = 0x40; //启动IIC模块
- OLED_Init();
- fill_picture(0xff);
- Delay_ms(300ul);
- OLED_Clear();
-
- OLED_ShowCHinese(24,0,5);//
- OLED_ShowCHinese(40,0,6);//
- OLED_ShowCHinese(56,0,7);//
- OLED_ShowCHinese(72,0,8);//
-
- OLED_ShowString(0,2,"Cjy_JDxy--21ic",16);
- while(1)
- {
-
- }
- }
效果图:
工程:
IIC-OLED.rar
(70.16 KB, 下载次数: 26)