//LCM resolution:240x320,
//driver IC:ST7789V,

#include <STC15F2K60S2.H>
#include <chinese_code.h>

//液晶屏IC所需要的信号线的接口定义
sbit cs1=P3^5;	
sbit reset=P3^3;
sbit rs=P3^0;
sbit sclk=P3^4;
sbit sid=P3^2;
sbit IM1=P3^6;
sbit IM2=P3^7;
sbit key=P2^0;		 //P2.0口与GND之间接一个按键

/*写指令到LCD模块*/
void transfer_command(int data1)   
{
	char i;
	cs1=0;
	rs=0;
	for(i=0;i<8;i++)
	{
		sclk=0;
		if(data1&0x80) sid=1;
		else sid=0;
		sclk=1;
		data1=data1<<=1;
	}
	cs1=1;
}

/*写数据到LCD模块*/
void transfer_data(int data1)
{
	char i;
	cs1=0;
	rs=1;
	for(i=0;i<8;i++)
	{
		sclk=0;
		if(data1&0x80) sid=1;
		else sid=0;
		sclk=1;
		data1=data1<<=1;
	}
	cs1=1;
}

//连写2个字节（即16位）数据到LCD模块
void transfer_data_16(uint data_16bit)
{
	transfer_data(data_16bit>>8);
	transfer_data(data_16bit);
}

void delay(long i)
{
	int j,k;
	for(j=0;j<i;j++)
	for(k=0;k<110;k++);
}  

void Switch()
{
 repeat:
	if (key==1) goto repeat;
	else delay(1000);
	if (key) goto repeat;
	else ;
}

void lcd_initial()
{
	reset=0;
	delay(200);
	reset=1;
	delay(200);
//************* Start Initial Sequence **********// 

//------------------------------display and color format setting--------------------------------//
	transfer_command(0x36);     //行扫描顺序及RGB，列扫描顺序，横放/竖放 
	transfer_data(0x00);
	transfer_data(0x48);
	
	transfer_command(0xB6);    	//显示功能设置：列/行 显示顺序
	transfer_data(0x0A);    
	transfer_data(0x82);    	//改变SOURCE线的方向：0xa2：左到右，0x82：右到左
	
	transfer_command(0x3a);     //256K 16bit/pixel
	transfer_data(0x05);
//--------------------------------ST7789V Frame rate setting----------------------------------//
	transfer_command(0xb2);
	transfer_data(0x0c);
	transfer_data(0x0c);
	transfer_data(0x00);
	transfer_data(0x33);
	transfer_data(0x33);
	transfer_command(0xb7);
	transfer_data(0x35);
//---------------------------------ST7789V Power setting--------------------------------------//
	transfer_command(0xbb);
	transfer_data(0x28);
	transfer_command(0xc0);
	transfer_data(0x2c);
	transfer_command(0xc2);
	transfer_data(0x01);
	transfer_command(0xc3);
	transfer_data(0x10);
	transfer_command(0xc4);
	transfer_data(0x20);
	transfer_command(0xc6);
	transfer_data(0x0f);
	transfer_command(0xd0);
	transfer_data(0xa4);
	transfer_data(0xa1);
//--------------------------------ST7789V gamma setting---------------------------------------//
	transfer_command(0xe0);
	transfer_data(0xd0);
	transfer_data(0x00);
	transfer_data(0x02);
	transfer_data(0x07);
	transfer_data(0x0a);
	transfer_data(0x28);
	transfer_data(0x32);
	transfer_data(0x44);
	transfer_data(0x42);
	transfer_data(0x06);
	transfer_data(0x0e);
	transfer_data(0x12);
	transfer_data(0x14);
	transfer_data(0x17);
	
	transfer_command(0xe1);
	transfer_data(0xd0);
	transfer_data(0x00);
	transfer_data(0x02);
	transfer_data(0x07);
	transfer_data(0x0a);
	transfer_data(0x28);
	transfer_data(0x31);
	transfer_data(0x54);
	transfer_data(0x47);
	transfer_data(0x0e);
	transfer_data(0x1c);
	transfer_data(0x17);
	transfer_data(0x1b);
	transfer_data(0x1e);
	
	transfer_command(0x11);    //退出睡眠
	delay(200);
	transfer_command(0x29);    //打开显示
}

//定义窗口坐标：开始坐标（XS,YS)以及窗口大小（x_total,y_total)
void lcd_address(int XS,int YS,int x_total,int y_total)
{
	int XE,YE; 
	XE=XS+x_total-1;
	YE=YS+y_total-1;	
	transfer_command(0x2a);		// 设置X开始及结束的地址
	transfer_data_16(XS);	// X开始地址(16位）
	transfer_data_16(XE);	// X结束地址(16位）
			
	transfer_command(0x2b);		// 设置Y开始及结束的地址
	transfer_data_16(YS);	// Y开始地址(16位）
	transfer_data_16(YE);	// Y结束地址(16位）

	transfer_command(0x2c);	    // 写数据开始
}

void mono_transfer_data_16(int mono_data,int font_color,int back_color)
{
	int i;
	for(i=0;i<8;i++)
	{
	 	if(mono_data&0x80)
		{
			transfer_data_16(font_color);	//当数据是1时，显示字体颜色
		}
		else
		{
			transfer_data_16(back_color);	//当数据是0时，显示底色
		}
		mono_data<<=1;
	}
}


//全屏显示一种颜色
void display_color(int color_data)
{  
	int i,j;
	lcd_address(0,0,240,320);
	for(i=0;i<240;i++)
	{
		for(j=0;j<320;j++)
		{
			transfer_data_16(color_data);		  
		}
	}
}

void display_black(void)
{  
	int i,j,k;
	transfer_command(0x2c); 	    // 写数据开始
	for(i=0;i<240;i++)
	{
		transfer_data_16(0xffff);
	}
	for(i=0;i<318;i++)
	{
		for(k=0;k<1;k++)
		{
			transfer_data_16(0xffff);
		}
		for(j=0;j<238;j++)
		{
			transfer_data_16(0x0000);
		}
		for(k=0;k<1;k++)
		{ 
			transfer_data_16(0xffff);
		}
	}
	for(i=0;i<320;i++)
	{
		transfer_data_16(0xffff);
	}
}

//显示8x16点阵的字符串
void disp_string_8x16(int x,int y,char *text,int font_color,int back_color)
{
	int i=0,j,k;
	while(text[i]>0x00)
	{	
		if((text[i]>=0x20)&&(text[i]<=0x7e))
		{
			j=text[i]-0x20;
			lcd_address(x,y,8,16);
			for(k=0;k<16;k++)
			{
				mono_transfer_data_16(ascii_table_8x16[j*16+k],font_color,back_color);	  //?a??"ascii_table_8x16[]"?a??êy×é?ú"ASCII_TABLE_5X8_8X16_horizontal.h"à?
			}
			x+=8;
			i++;
		}
		else
		i++;
	}
}

void display_string_16x16(int x,int y,uchar *text,int font_color,int back_color)
{
	uchar i,j,k;
	uint address; 
	j = 0;
	while(text[j] != '\0')                                //'\0' 字符串结束标志
	{
		i = 0;
		address = 1;
		while(Chinese_horizontal_text_16x16[i] > 0x7e)	  // >0x7f即说明不是ASCII码字符
		{
			if(Chinese_horizontal_text_16x16[i] == text[j])
			{
				if(Chinese_horizontal_text_16x16[i + 1] == text[j + 1])
				{
					address = i * 16;
					break;
				}
			}
			i += 2;            
		} 
		if(y > 320)
		{
			y=0;	
			x+=16;
		}	

		if(address != 1)// 显示汉字                   
		{
			lcd_address(x,y,16,16); 
			for(i=0;i<2;i++)
			{				
				for(k = 0; k <16; k++)               
				{								
				mono_transfer_data_16(Chinese_horizontal_code_16x16[address],font_color,back_color);
				address++;
				}
			}
			j+=2;        
		}
		else              //显示空白字符            
		{
			lcd_address(x,y,16,16);
			for(i = 0; i <2; i++)
			{			
			for(k = 0; k < 16; k++)               
			{
			mono_transfer_data_16(0x00,font_color,back_color);   
			}
			}
			j+=2;
		}       
		x=x+16;
	}
}


//显示32x32点阵的单色的图像
void disp_32x32(int x,int y,char *dp,int font_color,int back_color)
{
	int i,j;
	lcd_address(x,y,32,32); 
	for(i=0;i<32;i++)
	{
		for(j=0;j<4;j++)
		{
			mono_transfer_data_16(*dp,font_color,back_color);
			dp++;
		}
	}
}

//显示一幅彩图
void display_image(int x,int y,uchar *dp)
{
	uchar i,j,k=0;
	lcd_address(x,y,120,160);
	for(i=0;i<120;i++)
	{
		for(j=0;j<160;j++)
		{
			transfer_data(*dp);			//传一个像素的图片数据的高位 
			dp++;
			transfer_data(*dp);			//传一个像素的图片数据的低位
			dp++;
		}
	}
}

void main(void)
{ 
  P1M1=0x00;
	P1M0=0x00;   //P1配置为准双向
	P2M1=0x00;
	P2M0=0x00;   //P2配置为准双向
	P3M1=0x00;
	P3M0=0x00;   //P3配置为准双向	  	
	IM1=1; //IM1=0、IM2=0并行接口；IM1=1、IM2=1串行接口
	IM2=1;
	lcd_initial(); 
	while(1)
	{
		display_color(blue);
		disp_32x32(40+32*0,8,jing_32x32,white,blue);
		disp_32x32(40+32*1,8,lian_32x32,white,blue);
		disp_32x32(40+32*2,8,xun_32x32,white,blue);
		disp_32x32(40+32*3,8,dian_32x32,white,blue);
		disp_32x32(40+32*4,8,zi_32x32,white,blue);
		
		display_string_16x16(24,56,"深圳市晶联讯电子有限公司",white,blue);	
		display_string_16x16(48,88,"型号",white,blue);
		disp_string_8x16(80,88,":JLX240-00303-BN",white,blue);
		display_string_16x16(48,120,"视窗",white,blue);
		disp_string_8x16(80,120,":36.7x48.9mm",white,blue);
		display_string_16x16(48,152,"驱动",white,blue);
		disp_string_8x16(80,152,"IC:ST7789V",white,blue);
		
		display_string_16x16(0,184,"经营宗旨：制造高品质产品及服务",white,blue);
		display_string_16x16(0,216,"质量方针：客户至上，质量保证",white,blue);
		display_string_16x16(79,236,"持续改进，服务到位",white,blue);
		display_string_16x16(0,270,"经营目标：做最好的液晶模块厂家",white,blue);
		display_string_16x16(79,292,"做客户信得过的企业",white,blue);
		Switch();
		
		display_image(0,0,pic1);
		display_image(120,0,pic1);
		display_image(0,160,pic1);
		display_image(120,160,pic1);
		Switch();
		
		display_color(0xf800);
		Switch();
		display_color(0x07e0);
		Switch();
		display_color(0x001f);
		Switch();
		display_black();
		Switch();
		display_color(0xffff);
		Switch();
	}
}