//-------------------------------------------------
// Shenzhen TOPWAY Technology Co.,Ltd.
// LCD Module:		  LM12832KCW 
// Display Size:      128 x 32
// Driver/Controller: ST75263S
// by:                likeke
// Date:			        2020-07-21
// System;            AT89S52 (12MHz)
// REV：new
// note：V0.0
// by:                wangxikuan
// Date:			  2020-08-17
// note:			  V0.2  更新温补参数
//-------------------------------------------------



#include <stdio.h>
#include <reg52.h>
#include <intrins.h>

#define uchar unsigned char // 0~255
#define uint unsigned int   // 0~65535

//-----------------------------------
// ????? 4-SPI mode
sbit    _CS     = P3^4;
sbit    RS      = P3^6;
sbit    SID     = P1^7;
sbit    SCLK    = P1^6;
sbit    _RST    = P3^5;

uchar bdata transdata;      // this variable could be bits' variable
sbit transbit = transdata^7;
sbit	_KeySel		= 	P3^0;	// key scanning active
sbit	_KeyAuto	=	P1^0;	// key pressed 
sbit	_KeyDarker	=	P1^1;	// key pressed 
sbit	_KeyLighter	=	P1^2;	// key pressed 
sbit	_KeyStep	=	P1^3;	// key pressed

bit     HideFlag = 1;
bit     AutoRun;           // 1 for auto run, 0 for manual run

uint   ContrastLevel;     // for contrast setting level
uchar   bdata GrayLevel4;     //该变量可为位操作之变量

uchar code logo[]={
/*--  调入了一幅图像：C:\Documents and Settings\admin\桌面\lm12896A-logo.bmp  --*/
/*--  ??x??=128x64  --*/
0x1F,0x01,0x41,0x01,0x41,0x01,0x40,0x00,0x40,0x20,0x40,0x20,0x40,0x20,0x40,0x20,
0x40,0x20,0x50,0xA0,0x50,0xA0,0x50,0xA8,0x50,0xA8,0x50,0xA8,0x54,0xA8,0x54,0xA8,
0x54,0xAA,0x54,0x2A,0x94,0x8A,0xD5,0xCA,0xE5,0xE2,0xF5,0xF2,0xF1,0xFA,0xF9,0xFC,
0xFD,0xFC,0xFC,0xFE,0xFE,0xFE,0xFE,0xFE,0xFE,0x00,0x00,0x08,0x08,0xF8,0x08,0x08,
0x00,0xE0,0x10,0x08,0x08,0x08,0x10,0xE0,0x00,0xF8,0x88,0x88,0x88,0x70,0x18,0xE0,
0x00,0x80,0x70,0x08,0x70,0x80,0x00,0xE0,0x18,0x00,0x80,0x70,0x08,0x70,0x80,0x00,
0x00,0x08,0x30,0x40,0x80,0x40,0x30,0x08,0x00,0x00,0x00,0x00,0xF8,0x00,0x00,0x00,
0x00,0x20,0xF8,0x20,0x00,0xC0,0x20,0x20,0x40,0xF8,0x00,0x01,0x01,0x01,0x01,0x1F,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x40,0xA0,0x54,0xAA,0x55,0xAA,0x55,0x2A,0x95,0xCA,0xE5,0xF2,0xF9,0xFC,
0xFC,0xFE,0xFE,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x00,0x00,0x00,0x00,0x07,0x00,0x00,
0x00,0x01,0x02,0x04,0x04,0x04,0x02,0x01,0x00,0x07,0x00,0x00,0x00,0x00,0x00,0x01,
0x06,0x01,0x00,0x00,0x00,0x01,0x06,0x01,0x00,0x06,0x01,0x01,0x01,0x01,0x01,0x06,
0x00,0x00,0x00,0x00,0x07,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x07,0x04,0x04,0x04,
0x04,0x00,0x07,0x04,0x00,0x03,0x04,0x04,0x02,0x07,0x00,0x00,0x04,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x40,0xA0,
0x54,0x2A,0x95,0xCA,0xE5,0xF2,0xF9,0xFC,0xFE,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x00,0x00,0xFE,0xFE,0x00,0x00,0x00,
0x00,0x00,0x00,0xFE,0xFE,0x1E,0xF8,0x00,0xF8,0x1E,0xFE,0xFE,0x00,0x00,0x18,0x0C,
0xFE,0xFE,0x00,0x00,0x04,0x06,0xC2,0xE2,0x7E,0x1C,0x00,0xDC,0xFE,0x22,0x22,0xFE,
0xDC,0x00,0x04,0x06,0x22,0x22,0xFE,0xDC,0x00,0x04,0x06,0xC2,0xE2,0x7E,0x1C,0x00,
0x00,0xFE,0xFE,0x60,0x38,0xFC,0xC6,0x02,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0xF8,0x80,0x80,0x80,0x80,0x80,0x00,0x00,0x00,0x00,0x00,0x20,0x10,0x0A,0x65,0x70,
0x7C,0x7E,0x7F,0x7F,0x7D,0x7D,0x61,0x7D,0x7D,0x7F,0x73,0x6D,0x6D,0x6D,0x73,0x7F,
0x61,0x75,0x75,0x75,0x7B,0x7F,0x71,0x6F,0x77,0x6F,0x71,0x7F,0x67,0x73,0x75,0x73,
0x67,0x7F,0x7D,0x7B,0x67,0x7B,0x7D,0x7F,0x7F,0x00,0x00,0x07,0x07,0x04,0x04,0x04,
0x04,0x00,0x00,0x07,0x07,0x00,0x03,0x07,0x03,0x00,0x07,0x07,0x00,0x00,0x00,0x00,
0x07,0x07,0x00,0x00,0x06,0x07,0x05,0x04,0x04,0x04,0x00,0x03,0x07,0x04,0x04,0x07,
0x03,0x00,0x02,0x06,0x04,0x04,0x07,0x03,0x00,0x06,0x07,0x05,0x04,0x04,0x04,0x00,
0x00,0x07,0x07,0x00,0x00,0x01,0x07,0x06,0x00,0x00,0x00,0x80,0x80,0x80,0x80,0xF8,
};



//-----------------------------------
// Delay Routine
//-----------------------------------
void delayms(uint m)        // 12MHz Xtal, close to ms value
{
    uint j;
    uint i;
    
    for(i=0; i<m; i++)
        for(j=0; j<109; j++)
           _nop_();
}


void SdCmd(uchar Command)
{   
	uchar j;
	transdata = Command;	    	// The command put in BIT-byte variable 
	SCLK = 1;					// Initial SCK
	RS   = 0;
	_CS   = 0;					// Enable the access 
	SCLK = 0;
	for(j=0;j<8;j++)
	{
	SID  = transbit;			// To Start transfer From Highest bit 
	SCLK = 1;					// Enable at rising SCK edge
	SCLK = 0;					// Prepare write signal for next bit
	transdata = transdata<<1;	// One bit left shift 
	}
	_CS   = 1;
}

void SdData(uchar DData)
{
	uchar j;
	transdata = DData;	    	// The command put in BIT-byte variable 
	SCLK = 1;					// Initial SCK
	RS   = 1;
	_CS   = 0;					// Enable the access 
	SCLK = 0;
	for(j=0;j<8;j++)
	{
	SID  = transbit;			// To Start transfer From Highest bit 
	SCLK = 1;					// Enable at rising SCK edge
	SCLK = 0;					// Prepare write signal for next bit
	transdata = transdata<<1;	// One bit left shift 
	}
	_CS   = 1;
}



//----------------------------------------
//    功能子程序
//----------------------------------------
//-----------------------------------
// 对比度调节程序 Contrast control
//-----------------------------------
//-----对比度增强子程序-------------
void LCD_Darker(void)
// 对比度参数ConTrastLevel初始值在初始化程序中设置
{
	
   if (ContrastLevel<0x210)     // 限制上限值
      {
        ContrastLevel++;        // 对比度参数加1
		SdCmd(0xd6); 
       }
}
//-----对比度减弱子程序---------------
void LCD_Lighter(void)
// 对比度参数ConTrastLevel初始值在初始化程序中设置
{

   if (ContrastLevel>0x00)     // 限制下限值
      {
         ContrastLevel--;       // 对比度参数减1
		 SdCmd(0xd7);
       }
}

//----清屏子程序-----------------
void ClearRAM()
{
	uchar i,j;
	SdCmd(0x30);  			       //Extension Command 1
	SdCmd(0xf0);           		   // Display Mode
	SdData(0x10);                  // 10H=Monochrome Mode，11H=4Gray
	
	SdCmd(0x15);SdData(0x00);SdData(0x9f);         // 设置列地址
	SdCmd(0x75);SdData(0x00);SdData(0x13);         // 设置页地址
	SdCmd(0x5c);
	for(i=0;i<20;i++)
	    {
	    for(j=0;j<160;j++)        
	       {
	        SdData(0x00);
	       }
	    }
}


//-----------------------------------
// 初始化子程序Init LCD module
//-----------------------------------
void initLCDM(void)
{
    RST=1;
		delayms(2);
    RST=0;
    delayms(2);
    RST=1;
    delayms(800);
	
	  ContrastLevel=0x30;
	
		SdCmd(0x30);  // Extension Command 1
	  SdCmd(0x6e);  //Enable Master
	
		SdCmd(0x31);  // Extension Command 2
		SdCmd(0xd7);  // Disable Auto Read
		SdData(0x9f); 
		SdCmd(0xe0);  // Enable OTP Read
		SdData(0x00);
	  delayms(20);
    SdCmd(0xe3);  // OTP Up-Load 					  
	  delayms(40);
    SdCmd(0xe1);  // OTP Control Out 
		delayms(40);                  

//------功能设置----------------------------------------------
		SdCmd(0x30);  //Extension Command 1
    SdCmd(0x94);  // Sleep out，
    SdCmd(0xae);  // Display off
		delayms(50);

    SdCmd(0x20);  // Power control
	  SdData(0x0b); // D0=regulator ; D1=follower ; D3=booster,  on:1 off:0      			   

		SdCmd(0x81);  // EV control
	  SdData(0x07); // VPR[5-0] 				   // VOP=12.5V  SdData(0x1e); // VOP=13.0V SdData(0x2b);
	  SdData(0x02); // VPR[8-6]  vop=(10-3.6)/0.04=160=1010 0000     

		SdCmd(0x31);  // Extension Command 2
	  SdCmd(0x32);  // EXT=10
		SdData(0x00);
		SdData(0x01); // Frequency on booster capacitors 6khz
		SdData(0x05); //1/9 Bias	0X05


	  SdCmd(0x51);  // Booster Level x8
		SdData(0XFA);  
    
    SdCmd(0x30);  // Extension Command 1
		SdCmd(0x0c);  //Data Format Select 08:LSB on bottom(Default) 0C:LSB on top
		SdCmd(0xca);  // Display Control
	  SdData(0x00); // 1/2 division  0X04 
		SdData(0x1f); // 1/32duty
		SdData(0x00); // SET N-line inversion. Number of line cycles-1=LF4+LF3+LF2+LF1+LF0. 18-line
	
		SdCmd(0xbc);  // PARAMETER scan direction ----------- 
		SdData(0x00); // Data scan direction
	  SdCmd(0XA6);  // Normal display                 

	  SdCmd(0x31);  // Extension Command 2
		SdCmd(0x40);  // Internal Power Supply

		SdCmd(0xf2);  // set frequency of frame rate
		SdData(10);         // -20
		SdData(40);        // 10
		SdData(80);        // 60
	
		SdCmd(0xf0);   // set frequency of frame rate
		SdData(0X03);  //the Frame Rate in temp. -30~TA        
		SdData(0X0b);  //the Frame Rate in temp. TA~TB      
		SdData(0X15);  //the Frame Rate in temp. TB~TC       
		SdData(0X1a);  //the Frame Rate in temp. TC~90      
	
	SdCmd(0x31);   	// Extension Command 2
	SdCmd(0xf4);//set temperature gradient compensation coefficient
	SdData(0X0F);//MT1,MT0
	SdData(0X00);//MT3,MT2
	SdData(0X00);//MT5,MT4
	SdData(0X00);//MT7,MT6
	SdData(0X00);//MT9,MT8
	SdData(0X10);//MT11,MT10
	SdData(0Xf0);//MT13,MT12
	SdData(0X00);//MT15,MT14
	
		SdCmd(0x30); // EXT=0
//		SdCmd(0x76);//Set Icon  0x76:Disable 0x77:Enable 
		SdCmd(0xaf);//Display on    
}

//-----图画写入子程序---------------------------------
void ShowBMP(uchar *pstr)
{
	 uchar i,j;
	 SdCmd(0x30); 	    						   	//Extension Command 1
	 SdCmd(0x15);SdData(0x00);SdData(0x7f);         // 设置列地址
     SdCmd(0x75);SdData(0x00);SdData(0x03);         // 设置页地址  
     SdCmd(0x5c);           						// 写数据
  	 for(i=0;i<4;i++)
     {
        for(j=0;j<128;j++)
        {
        SdData(*pstr++);     // 写图形数据
        }
     }
}


//-----------------------------------
// Main Program
//-----------------------------------
void main()
{
    SP=0x60;
    EA = 0;         // disable interrupts
    _CS     =1;
    RS     =1;
		SCLK    =1;
    SID     =1;
    _RST    =1;    // hardware reset LCD module
	 _KeySel = 1;            // init all signal  
		AutoRun = 0;
    _RST     =1;    // hardware reset LCD module

    initLCDM();
		ShowBMP(logo);
    while(1);
    
}
//end of program