本帖最后由 芯圣电子官方QQ 于 2023-7-19 16:44 编辑
今天搞了一下OLED，I2C接口。
SCL接P01,SDA接P00。
主程序代码：
#define ALLOCATE_EXTERN
#include "HC89S105AC8.h"
#include "oled.h"
#define DEVICEADD 0x78 //24C02器件地址
#define SCL P0_1 //I2C时钟控制位
#define SDA P0_0 //I2C数据传送位
unsigned char temp1,temp2,temp3; //用于存放读写数据
void Delay_ms(unsigned int fui_i); //延时函数
void IIC_Send_Byte(unsigned char fuc_Add, unsigned char fuc_Dat); //IIC发送一个字节的数据
unsigned char IIC_Read_Byte(unsigned char fuc_Add); //IIC读取一个字节的数据
/***************************************************************************************
* @实现效果 对24C02进行读写操作
***************************************************************************************/
void main()
{
/************************************系统初始化****************************************/
CLKCON = 0x02; //选择内部高频RC为系统时钟，内部高频RC Fosc=32MHz
CLKDIV = 0x02; //Fosc 2分频得到Fcpu，Fcpu=16MHz
/**********************************IIC配置初始化***************************************/
P0M0 = P0M0 & 0xF0 | 0x0A; //P00带上拉开漏输出
P0M0 = P0M0 & 0x0F | 0x80; //P01推挽输出
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();
OLED_ShowString(10,0,"21ic",16);
OLED_ShowCHinese(10,2,5);
OLED_ShowCHinese(26,2,6);
OLED_ShowCHinese(42,2,7);
OLED_ShowCHinese(58,2,8);
OLED_ShowCHinese(74,2,9);
while (1)
{
}
}
/***************************************************************************************
* @说明 IIC发送一个字节的数据
* @参数 fuc_Add：存储的地址
* fuc_Dat：存储的数据
* @返回值 无
* @注 无
***************************************************************************************/
void IIC_Send_Byte(unsigned char fuc_Add, unsigned char fuc_Dat)
{
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 = DEVICEADD; //写入器件地址
while (IICSTA != 0x18);
IICCON &= ~0x08; //清除中断标志位
IICDAT = fuc_Add; //写入地址
while (IICSTA != 0x28);
IICCON &= ~0x08; //清除中断标志位
IICDAT = fuc_Dat; //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
}
/***************************************************************************************
* @说明 IIC读取一个字节的数据
* @参数 fuc_Add：存储的地址
* @返回值 存储地址里面的数据
* @注 无
***************************************************************************************/
unsigned char IIC_Read_Byte(unsigned char fuc_Add)
{
unsigned char fuc_Dat;
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 = DEVICEADD; //写入器件地址
while (IICSTA != 0x18);
IICCON &= ~0x08; //清除中断标志位
IICDAT = fuc_Add; //写入读地址
while (IICSTA != 0x28);
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 = DEVICEADD | 0x01; //写入读指令
while (IICSTA != 0x40);
IICCON &= ~0x08; //清除中断标志位
while (IICSTA != 0x58);
fuc_Dat = IICDAT; //读入数据
IICCON &= ~0x08; //清除中断标志位
IICCON |= 0x10; //停止位发送停止信号
return fuc_Dat;
}
/***************************************************************************************
* @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--);
}
#include "oled.h"
extern void IIC_Send_Byte(unsigned char fuc_Add, unsigned char fuc_Dat);
uint32_t I2C_TIMEOUT_UserCallback(uint8_t errorCode)
{
return 0;
}
//OLED鐨勬樉瀛?
//瀛樻斁鏍煎紡濡備笅.
//[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
void I2C_Write1(uint8_t addr,uint8_t pBuffer)
{
IIC_Send_Byte(addr, pBuffer);
}
/**
* [url=home.php?mod=space&uid=247401]@brief[/url] Write_I2C_Data 鍚慜LED鍐欏叆鏁版嵁
* @param I2C_Data锛氭暟鎹?
* @retval 鏃?
*/
static void Write_I2C_Data(uint8_t I2C_Data)//鍐欐暟鎹?
{
I2C_Write1(0x40,I2C_Data);
}
/**
* [url=home.php?mod=space&uid=247401]@brief[/url] Write_I2C_Command锛屽悜OLED鍐欏叆鍛戒护
* @param I2C_Command
* @retval 鏃?
*/
static void Write_I2C_Command(uint8_t I2C_Command)//鍐欏懡浠?
{
I2C_Write1(0x00,I2C_Command);
}
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);
}
}
}
//鍧愭爣璁剧疆
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);
}
//寮€鍚疧LED鏄剧ず
void OLED_Display_On(void)
{
OLED_WR_Byte(0X8D, OLED_CMD); //SET DCDC鍛戒护
OLED_WR_Byte(0X14, OLED_CMD); //DCDC ON
OLED_WR_Byte(0XAF, OLED_CMD); //DISPLAY ON
}
//鍏抽棴OLED鏄剧ず
void OLED_Display_Off(void)
{
OLED_WR_Byte(0X8D, OLED_CMD); //SET DCDC鍛戒护
OLED_WR_Byte(0X10, OLED_CMD); //DCDC OFF
OLED_WR_Byte(0XAE, OLED_CMD); //DISPLAY OFF
}
//娓呭睆鍑芥暟,娓呭畬灞?鏁翠釜灞忓箷鏄粦鑹茬殑!鍜屾病鐐逛寒涓€鏍?!!
void OLED_Clear(void)
{
uint8_t i,n;
for(i=0; i<8; i++)
{
OLED_WR_Byte (0xb0+i, OLED_CMD); //璁剧疆椤靛湴鍧€锛?~7锛?
OLED_WR_Byte (0x00, OLED_CMD); //璁剧疆鏄剧ず浣嶇疆鈥斿垪浣庡湴鍧€
OLED_WR_Byte (0x10, OLED_CMD); //璁剧疆鏄剧ず浣嶇疆鈥斿垪楂樺湴鍧€
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); //璁剧疆椤靛湴鍧€锛?~7锛?
OLED_WR_Byte (0x00,OLED_CMD); //璁剧疆鏄剧ず浣嶇疆鈥斿垪浣庡湴鍧€
OLED_WR_Byte (0x10,OLED_CMD); //璁剧疆鏄剧ず浣嶇疆鈥斿垪楂樺湴鍧€
for(n=0; n<128; n++)
OLED_WR_Byte(1, OLED_DATA);
}
}
//鍦ㄦ寚瀹氫綅缃樉绀轰竴涓瓧绗?鍖呮嫭閮ㄥ垎瀛楃
//x:0~127
//y:0~63
//mode:0,鍙嶇櫧鏄剧ず;1,姝ｅ父鏄剧ず
//size:閫夋嫨瀛椾綋 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-' ';//寰楀埌鍋忕Щ鍚庣殑鍊?
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鍑芥暟
uint32_t OLED_pow(uint8_t m, uint8_t n)
{
uint32_t result = 1;
while(n--)
result *= m;
return result;
}
//鏄剧ず2涓暟瀛?
//x,y :璧风偣鍧愭爣
//len :鏁板瓧鐨勪綅鏁?
//size:瀛椾綋澶у皬
//mode:妯″紡 0,濉厖妯″紡;1,鍙犲姞妯″紡
//num:鏁板€?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);
}
}
//鏄剧ず涓€涓瓧绗﹀彿涓?
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++;
}
}
//鏄剧ず姹夊瓧
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;
}
}
/***********鍔熻兘鎻忚堪锛?
鏄剧ず鏄剧ずBMP鍥剧墖128脳64璧峰鐐瑰潗鏍?x,y),x鐨勮寖鍥?锝?27锛寉涓洪〉鐨勮寖鍥?锝?
*****************/
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);
}
}
}
//鍒濆鍖朣SD1306
void OLED_Init(void)
{
long int i;
//Ddl_Delay1ms(100);
for(i=0;i<20000;i++);
OLED_WR_Byte(0xAE,OLED_CMD);//鍏抽棴鏄剧ず
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);//璁剧疆瀵规瘮搴?
OLED_WR_Byte(0xff,OLED_CMD);
OLED_WR_Byte(0xa1,OLED_CMD);//娈甸噸瀹氬悜璁剧疆
OLED_WR_Byte(0xa6,OLED_CMD);//
OLED_WR_Byte(0xa8,OLED_CMD);//璁剧疆椹卞姩璺暟
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();
}
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