#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: