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#include "oled.h"
#include "stdlib.h"
#include "delay.h"
#include "1.h"
u8 OLED_GRAM[128][8];
/*引腳初始化*/
void OLED_I2C_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_Out_OD;
GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStruct.GPIO_Pin = GPIO_Pin_6;
GPIO_Init(GPIOB, &GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin = GPIO_Pin_7;
GPIO_Init(GPIOB, &GPIO_InitStruct);
OLED_W_SCL(1);
OLED_W_SDA(1);
}
/**
* @brief I2C開始
* @param 無
* @retval 無
*/
void OLED_I2C_Start(void)
{
OLED_W_SDA(1);
OLED_W_SCL(1);
OLED_W_SDA(0);
OLED_W_SCL(0);
}
/**
* @brief I2C停止
* @param 無
* @retval 無
*/
void OLED_I2C_Stop(void)
{
OLED_W_SDA(0);
OLED_W_SCL(1);
OLED_W_SDA(1);
}
/**
* @brief I2C發(fā)送一個字節(jié)
* @param Byte 要發(fā)送的一個字節(jié)
* @retval 無
*/
void OLED_I2C_SendByte(uint8_t Byte)
{
uint8_t i;
for (i = 0; i < 8; i++)
{
OLED_W_SDA(Byte & (0x80 >> i));
OLED_W_SCL(1);
OLED_W_SCL(0);
}
OLED_W_SCL(1); //額外的一個時鐘，不處理應答信號
OLED_W_SCL(0);
}
/**
* @brief OLED寫命令
* @param Command 要寫入的命令
* @retval 無
*/
void OLED_WriteCommand(uint8_t Command)
{
OLED_I2C_Start();
OLED_I2C_SendByte(0x78); //從機地址
OLED_I2C_SendByte(0x00); //寫命令
OLED_I2C_SendByte(Command);
OLED_I2C_Stop();
}
/**
* @brief OLED寫數(shù)據
* @param Data 要寫入的數(shù)據
* @retval 無
*/
void OLED_WriteData(uint8_t Data)
{
OLED_I2C_Start();
OLED_I2C_SendByte(0x78); //從機地址
OLED_I2C_SendByte(0x40); //寫數(shù)據
OLED_I2C_SendByte(Data);
OLED_I2C_Stop();
}
//更新顯存到OLED
void OLED_Refresh_Gram(void)
{
u8 i,n;
for(i=0;i<8;i++)
{
OLED_WriteCommand(0xB0+i); //設置Y位置
OLED_WriteCommand(0x10); //設置X位置高4位
OLED_WriteCommand(0x00); //設置X位置低4位
for(n=0;n<128;n++)
{
OLED_WriteData(OLED_GRAM[n][i]);
}
}
}
//畫點
//x:0~127
//y:0~63
//t:1 填充 0,清空
void OLED_DrawPoint(u8 x,u8 y,u8 t)
{
u8 pos,bx,temp=0;
if(x>127||y>63)
{
return;//超出范圍了.
}
pos=7-y/8;
bx=y%8;
temp=1<<(7-bx);
if(t)
{
OLED_GRAM[x][pos]|=temp;
}
else OLED_GRAM[x][pos]&=~temp;
}
//m^n函數(shù)
u32 mypow(u8 m,u8 n)
{
u32 result=1;
while(n--)result*=m;
return result;
}
//清屏函數(shù),清完屏,整個屏幕是黑色的!和沒點亮一樣!!!
void OLED_Clear(void)
{
u8 i,n;
for(i=0;i<8;i++)
{
for(n=0;n<128;n++)
{
OLED_GRAM[n][i]=0X00;
}
}
OLED_Refresh_Gram();//更新顯示
}
/**
* @brief OLED設置光標位置
* @param Y 以左上角為原點，向下方向的坐標，范圍：0~7
* @param X 以左上角為原點，向右方向的坐標，范圍：0~127
* @retval 無
*/
void OLED_SetCursor(uint8_t Y, uint8_t X)
{
OLED_WriteCommand(0xB0 | Y); //設置Y位置
OLED_WriteCommand(0x10 | ((X & 0xF0) >> 4)); //設置X位置低4位
OLED_WriteCommand(0x00 | (X & 0x0F)); //設置X位置高4位
}
/***********功能描述：顯示顯示BMP圖片128×64起始點坐標(x,y),x的范圍0～127，y為頁的范圍0～7*****************/
void OLED_DrawBMP(unsigned char x0, unsigned char y0,unsigned char x1, unsigned char y1,unsigned char PI[])
{
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_SetCursor(y,x0); //第一個設置y,第二個設置x//設置光標位置左上角(0,0) 往下0-7 ，往右0-127
for(x=x0;x<x1;x++)
{
OLED_WriteData(PI[j++]); //寫數(shù)據
}
}
}
void OLED_BMP(void)
{
OLED_Clear();
OLED_DrawBMP(0,0,127,0,(unsigned char *)gImage_1);
OLED_DrawBMP(0,0,127,1,(unsigned char *)gImage_1);
OLED_DrawBMP(0,0,127,2,(unsigned char *)gImage_1);
OLED_DrawBMP(0,0,127,3,(unsigned char *)gImage_1);
OLED_DrawBMP(0,0,127,4,(unsigned char *)gImage_1);
OLED_DrawBMP(0,0,127,5,(unsigned char *)gImage_1);
OLED_DrawBMP(0,0,127,6,(unsigned char *)gImage_1);
OLED_DrawBMP(0,0,127,7,(unsigned char *)gImage_1);
}
/**
* @brief OLED初始化
* @param 無
* @retval 無
*/
void OLED_Init(void)
{
uint32_t i, j;
for (i = 0; i < 1000; i++) //上電延時
{
for (j = 0; j < 1000; j++);
}
OLED_I2C_Init(); //端口初始化
OLED_WriteCommand(0xAE); //關閉顯示
OLED_WriteCommand(0xD5); //設置顯示時鐘分頻比/振蕩器頻率
OLED_WriteCommand(0x80);
OLED_WriteCommand(0xA8); //設置多路復用率
OLED_WriteCommand(0x3F);
OLED_WriteCommand(0xD3); //設置顯示偏移
OLED_WriteCommand(0x00);
OLED_WriteCommand(0x40); //設置顯示開始行
OLED_WriteCommand(0xA1); //設置左右方向，0xA1正常 0xA0左右反置
OLED_WriteCommand(0xC0); //設置上下方向，0xC8正常 0xC0上下反置
OLED_WriteCommand(0xDA); //設置COM引腳硬件配置
OLED_WriteCommand(0x12);
OLED_WriteCommand(0x81); //設置對比度控制
OLED_WriteCommand(0xCF);
OLED_WriteCommand(0xD9); //設置預充電周期
OLED_WriteCommand(0xF1);
OLED_WriteCommand(0xDB); //設置VCOMH取消選擇級別
OLED_WriteCommand(0x30);
OLED_WriteCommand(0xA4); //設置整個顯示打開/關閉
OLED_WriteCommand(0xA6); //設置正常/倒轉顯示
OLED_WriteCommand(0x8D); //設置充電泵
OLED_WriteCommand(0x14);
OLED_WriteCommand(0xAF); //開啟顯示
OLED_Clear(); //OLED清屏
}

復制代碼

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