基于IIC的OLED液晶屏12864-研电赛[5]

#ifndef DEV_I2C_C
#define DEV_I2C_C

#include "dev_i2c.h"






/*******************************组件接口*********************************/
void    Dev_I2c_Init(void);
void    Dev_I2c_Start(void);
void    Dev_I2c_Message(MSG_E msg,unsigned long para1,unsigned long para2);
void    Dev_I2c_Process(void);

void OLED_Init();
/*******************************全局定义*********************************/
const SYS_ENTRY_S   g_stDevEntry_I2c = {"DEV","GPIO",Dev_I2c_Init,Dev_I2c_Start,Dev_I2c_Message,Dev_I2c_Process};

/*********************************END************************************/

extern char g_uart_flag;


void Dev_I2c_Init(void)
{
    MX_I2C2_Init();
    return;
}
void Dev_I2c_Start(void)
{

    return;
}
static UCHAR delay_cnt = 0;
static UCHAR delay_flag = 0;
void Dev_I2c_Message(MSG_E msg,unsigned long para1,unsigned long para2)
{
    if(!MSG_IsValid(msg)) {
        return;
    }

    switch(msg) {
    case MSG_Tim_1s:
        if (delay_flag == 0) {
            delay_cnt++;
            if(delay_cnt >= 2) {
                delay_flag = 1;
            }
        }
        if (g_uart_flag == 1) {
            OLED_DrawBMP(0,0,128,8,BMP1);
        }
        break;
    case MSG_Tim_100ms:
        break;
    case MSG_Tim_1ms:
        break;
    default:
        break;
    }
    return;
}
void Dev_I2c_Process(void)
{
    if (delay_flag==1) {
        OLED_Init();
        OLED_CLS();
        delay_flag = 2;

        /*for(int i=0; i<7; i++) {
            OLED_ShowCN(10+i*16,1,i); //测试
        }*/
        OLED_DrawBMP(0,0,128,8,BMP_Charging);
    }
    return;
}

void I2C_WriteByte(uint8_t register_address, uint8_t data)
{

    uint8_t buffer[2] = {register_address,data};
    HAL_I2C_Master_Transmit(&HAL_I2C,OLED_ADDRESS,buffer,2,1000);

}

void WriteCmd(unsigned char I2C_Command)//写命令
{
    I2C_WriteByte(0x00, I2C_Command);
}

void WriteDat(unsigned char I2C_Data)//写数据
{
    I2C_WriteByte(0x40, I2C_Data);
}
void OLED_Fill(unsigned char fill_Data)//全屏填充
{
    unsigned char m,n;
    for(m=0; m<8; m++) {
        WriteCmd(0xb0+m);       //page0-page1
        WriteCmd(0x00);     //low column start address
        WriteCmd(0x10);     //high column start address
        for(n=0; n<128; n++) {
            WriteDat(fill_Data);
        }
    }
}
void OLED_CLS()//清屏
{
    OLED_Fill(0x00);
}
void OLED_Init()
{
    WriteCmd(0x8d); //--set DC-DC enable
    WriteCmd(0x14); //
    WriteCmd(0xaf); //--turn on oled panel
}

void OLED_SetPos(unsigned char x, unsigned char y) //设置起始点坐标
{
    WriteCmd(0xb0+y);
    WriteCmd(((x&0xf0)>>4)|0x10);
    WriteCmd((x&0x0f)|0x01);
}


/*
 * x,y : 起始点坐标(x:0~127, y:0~7);
 * ch[] :- 要显示的字符串; 
 * TextSize : 字符模式选择1或者2。字符大小(1:6*8 ; 2:8*16)
*/
void OLED_ShowStr(unsigned char x, unsigned char y, unsigned char ch[], unsigned char TextSize)
{
    unsigned char c = 0,i = 0,j = 0;
    switch(TextSize) {
    case 1: {
        while(ch[j] != '\0') {
            c = ch[j] - 32;
            if(x > 126) {
                x = 0;
                y++;
            }
            OLED_SetPos(x,y);
            for(i=0; i<6; i++)
                WriteDat(F6x8[c][i]);
            x += 6;
            j++;
        }
    }
    break;
    case 2: {
        while(ch[j] != '\0') {
            c = ch[j] - 32;
            if(x > 120) {
                x = 0;
                y++;
            }
            OLED_SetPos(x,y);
            for(i=0; i<8; i++)
                WriteDat(F8X16[c*16+i]);
            OLED_SetPos(x,y+1);
            for(i=0; i<8; i++)
                WriteDat(F8X16[c*16+i+8]);
            x += 8;
            j++;
        }
    }
    break;
    }
}

void OLED_ShowCN(unsigned char x, unsigned char y, unsigned char N)
{
    unsigned char wm=0;
    unsigned int  adder=32*N;
    OLED_SetPos(x , y);
    for(wm = 0; wm < 16; wm++) {
        WriteDat(F16x16[adder]);
        adder += 1;
    }
    OLED_SetPos(x,y + 1);
    for(wm = 0; wm < 16; wm++) {
        WriteDat(F16x16[adder]);
        adder += 1;
    }
}


/*x0,y0 :起始点坐标(x0:0~127, y0:0~7);
* x1,y1 : 起点对角线(结束点)的坐标(x1:1~128,y1:1~8)
*/
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_SetPos(x0,y);
        for(x=x0; x<x1; x++) {
            WriteDat(BMP[j++]);
        }
    }
}


#endif