//-------------------------------------------------
// Shenzhen TOPWAY Technology Co.,Ltd.
// LCD Module:		  LM12832B
// Display Size:      128x32
// Driver/Controller: ST7565R
// Interface:         serial
// by:                GuoQ
// Date:			  2011-7-5
// note:			  3x booster(hardware config)
//-------------------------------------------------

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

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


uchar bdata transdata;     //该变量可为位操作之变量
sbit transbit  = transdata^7;
sbit    _CS1        = P3^4;
sbit    _RST       = P3^5;
sbit    RS         = P3^6;
sbit    SCLK       = P1^6;
sbit    SID        = P1^7;

uchar   ContrastLevel;     // for contrast setting level 



//-----------------------------------
// dispaly data (128x32)
//-----------------------------------
uchar code Logo[]={
/*--  调入了一幅图像：D:\120\pic\lm12832new-LOGO.bmp  --*/
/*--  宽度x高度=128x32  --*/
0xFF,0x01,0x01,0x81,0x01,0x81,0x01,0x81,0x01,0x81,0x41,0x81,0x41,0x81,0x41,0x81,
0x41,0x81,0x41,0xA1,0x41,0xA1,0x41,0xA1,0x51,0xA1,0x51,0xA1,0x51,0xA9,0x51,0xA9,
0x51,0xA9,0x55,0xA9,0x55,0x29,0x15,0xAB,0x95,0xCB,0xC5,0xEB,0xE5,0xE3,0xF5,0xF3,
0xF9,0xFB,0xF9,0xF9,0xFD,0xFD,0xFD,0xFD,0xFD,0xFD,0x01,0x01,0x01,0x01,0x01,0x41,
0x89,0xD1,0x01,0xB1,0x51,0x31,0x91,0x31,0x51,0xB1,0x01,0x41,0x41,0xF9,0x41,0x41,
0xF9,0x01,0xF1,0x01,0x01,0xF9,0x01,0x21,0x21,0xF9,0x21,0x11,0x91,0x71,0x11,0x11,
0x11,0x11,0x01,0x81,0xB1,0xD1,0x99,0xF1,0x91,0xF1,0x99,0xD1,0xB1,0x81,0x01,0x21,
0x99,0x71,0x41,0x79,0x41,0x71,0x81,0x79,0xC1,0x41,0x01,0x01,0x01,0x01,0x01,0xFF,
0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x80,0x41,0xA8,0x55,0xAA,0x55,0xAA,0x55,0x2A,0x95,0xCA,0xE5,0xF2,
0xF9,0xF8,0xFD,0xFC,0xFE,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x00,0x00,0x00,0x00,0x00,0x08,
0x3F,0x00,0x12,0x0A,0x06,0x02,0x3F,0x06,0x0A,0x12,0x00,0x08,0x08,0x27,0x24,0x10,
0x0F,0x00,0x1F,0x00,0x00,0x3F,0x00,0x22,0x22,0x3F,0x05,0x02,0x3F,0x11,0x11,0x11,
0x3F,0x00,0x00,0x00,0x00,0x3E,0x2A,0x2A,0x2A,0x2A,0x2A,0x3E,0x00,0x00,0x00,0x01,
0x3F,0x21,0x1D,0x05,0x1D,0x29,0x13,0x0C,0x13,0x20,0x00,0x00,0x00,0x00,0x00,0xFF,
0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,
0x40,0xA8,0x54,0x2A,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,0x00,0x00,0x00,0x00,0x00,0xF8,
0xF8,0x00,0x00,0x00,0x00,0x00,0xF8,0xF8,0x78,0xE0,0x00,0xE0,0x78,0xF8,0xF8,0x00,
0x00,0x60,0x30,0xF8,0xF8,0x00,0x00,0x10,0x18,0x08,0x88,0xF8,0x70,0x00,0x70,0xF8,
0x88,0x88,0xF8,0x70,0x00,0x10,0x18,0x48,0x48,0xF8,0xB0,0x00,0x10,0x18,0x08,0x88,
0xF8,0x70,0x00,0x00,0xE0,0xF8,0x18,0xF8,0xE0,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,
0xFF,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0xC0,0xA0,0x94,0xCA,
0xE1,0xF8,0xFC,0xFF,0xFF,0xFB,0xFB,0xC3,0xFB,0xFB,0xFF,0xE7,0xDB,0xDB,0xDB,0xE7,
0xFF,0xC3,0xEB,0xEB,0xEB,0xF7,0xFF,0xE3,0xDF,0xEF,0xDF,0xE3,0xFF,0xCF,0xE7,0xEB,
0xE7,0xCF,0xFF,0xFB,0xF7,0xCF,0xF7,0xFB,0xFF,0xFF,0x80,0x80,0x80,0x80,0x80,0x8F,
0x8F,0x88,0x88,0x88,0x88,0x80,0x8F,0x8F,0x80,0x87,0x8E,0x87,0x80,0x8F,0x8F,0x80,
0x80,0x80,0x80,0x8F,0x8F,0x80,0x80,0x8C,0x8E,0x8B,0x89,0x88,0x88,0x80,0x87,0x8F,
0x88,0x88,0x8F,0x87,0x80,0x84,0x8C,0x88,0x88,0x8F,0x87,0x80,0x8C,0x8E,0x8B,0x89,
0x88,0x88,0x80,0x8E,0x8F,0x83,0x82,0x83,0x8F,0x8E,0x80,0x80,0x80,0x80,0x80,0xFF
};



//-----------------------------------
// 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_();
}



//-------指令代码传送子程序------------------------
void SdCmd(uchar Command)
{
   uchar j;
   transdata=Command;          // 指令送位寄存器
   SCLK = 1;                   // 初始化SCLK
    RS = 0;                    // 选择指令通道
    _CS1 = 0;                   // 选通模块
   for(j=0;j<8;j++)
     {
      SID=transbit;            // 位寄存器D7位送数据口
      SCLK=0;                  // 产生移位脉冲
      SCLK=1;                  // 上升沿有效
      transdata=transdata<<1;  // 位寄存器数据左移一位
      }
   _CS1=1;                      // 封锁模块
}
//-----数据传送子程序--------------------------
void SdData(uchar DData)
{
   uchar j;
   transdata=DData;            // 指令送位寄存器
   SCLK = 1;                   // 初始化SCLK
   RS  = 1;                    // 选择数据通道
   _CS1 = 0;                    // 选通模块
   for(j=0;j<8;j++)
     {                         
      SID=transbit;            // 位寄存器D7位送数据口
      SCLK=0;                  // 产生移位脉冲
      SCLK=1;                  // 上升沿有效
      transdata=transdata<<1;  // 位寄存器数据左移一位
      }
   _CS1=1;                      // 封锁模块
}




//-----------------------------------
// Write a Screen
//-----------------------------------
void WriteScreen(uchar *DisplayData)	// DisplayData should be 132x32/8 byte
{
	uchar TempData;
	uchar i, j;
	for(i=0;i<4;i++)
	    {
    	SdCmd(0xb0 | i);	// select page
    	SdCmd(0x10);	    // start form column 0
    	SdCmd(0x00);	    // (2byte command)
     	for(j=0;j<128;j++)
     		{
     		TempData=(*(DisplayData+(i*128)+j));
     		SdData(TempData);
 		    }
        }
}


//-----------------------------------
// Contrast control
//-----------------------------------
void LCD_Darker(void)
{
	if (ContrastLevel<0x3F)
    	{
        ContrastLevel++;
		}
    SdCmd(0x81);     		// E-Vol setting
	SdCmd(ContrastLevel);   // (2byte command)
}



void LCD_Lighter(void)
{
	if (ContrastLevel>0x00)
    	{
	     ContrastLevel--;
		}
    SdCmd(0x81);            // E-Vol setting
	SdCmd(ContrastLevel);   // (2byte command)
}



//-----------------------------------
// Init LCD module
//-----------------------------------
void initLCDM(void)
{
	_RST=1;                 // hardware reset LCD module
	_RST=0;
	delayms(1);
	_RST=1;
	delayms(100);
	
    ContrastLevel=0x15;     // default Contrast Level

	SdCmd(0xaf);            // display on
	SdCmd(0x40);            // display start line=0
    SdCmd(0xa0);            // ADC=0
    SdCmd(0xa6);            // normal display
    SdCmd(0xa4);            // Display all point = off
    SdCmd(0xa2);            // LCD bias = 1/6 (duty=1/33)
    SdCmd(0xc8);            // Common output mode select=reverse


    SdCmd(0x2f);            // Power control = all on

   	SdCmd(0x23);			// RA/RB setting

   	SdCmd(0xf8);SdCmd(0x00);// Booster Ratio Set= 2x,3x,4x (2byte command)

	SdCmd(0x81);            // E-Vol setting
    SdCmd(ContrastLevel);   // (2byte command)
}


//-----------------------------------
// Main Program
//-----------------------------------
void main()
{
	SP=0x60;
	EA = 0;         // disable interrupts

    _CS1    = 1;
    _RST    = 1;
    RS      = 1;

    SCLK    = 1;//串口初始化
    SID     = 1;//串口初始化

   	initLCDM();

	while(1)
	{
	WriteScreen(Logo);            delayms(3000);  
 	}
}
//end of program