本帖最后由 胡斯哲 于 2015-3-14 17:48 编辑
窜口可以节省i/o口 时钟不要太快
#include <msp430x14x.h>
#include <math.h>
//#include "pic.h"
#define LCD_CS_High P5OUT|=BIT2 // LCD_RS P62
#define LCD_CS_Low P5OUT&=~BIT2 // LCD_RS
#define LCD_SID_High P5OUT|=BIT1 // LCD_RW DB0_DB7 P64
#define LCD_SID_Low P5OUT&=~BIT1 // LCD_RW IR DR
#define LCD_CLK_High P5OUT|=BIT0 // LCD_EN P63
#define LCD_CLK_Low P5OUT&=~BIT0 // LCD_EN
#define LCD_PSB_High P5OUT|=BIT3; //
#define LCD_PSB_Low P5OUT&=~BIT3; // P30
//P67 鎮┖
#define uchar unsigned char
#define uint unsigned int
void delay_ms(unsigned int timer)
{
unsigned int i;
for(i=0;i<1000;i--)
for(;timer>0;timer--)
;
}
void Send_Byte(unsigned byte)
{
uchar i;
for(i=0;i<8;i++)
{
LCD_CLK_Low;
if(byte&0x80)
{LCD_SID_High; delay_ms(10);}
else
{ LCD_SID_Low ;delay_ms(10);}
byte<<=1;
LCD_CLK_High;
delay_ms(10);
LCD_CLK_Low;
delay_ms(10);
}
}
/*鍐欏懡浠ゅ埌娑叉櫠*/
void LCD_WCMD(unsigned char cmd)
{
delay_ms(1);
Send_Byte(0xf8); //11111,RW(0),RS(0),0;
delay_ms(2);
Send_Byte(0xf0&cmd);
delay_ms(2);
Send_Byte(0xf0&cmd<<4);
delay_ms(2);
}
/*鍐欐暟鎹埌娑叉櫠*/
void LCD_WDAT(unsigned char date)
{
delay_ms(1);
Send_Byte(0xfa); //11111,RW(0),RS(1),0
delay_ms(2);
Send_Byte(0xf0&date);
delay_ms(2);
Send_Byte(0xf0&date<<4);
delay_ms(2);
}
uchar re_byte(void)
{
uchar re=0,i;
P6DIR = 0x00;
for(i=0;i<8;i++)
{
LCD_CLK_Low;
delay_ms(10);
if(P6IN&0x10)
{
re = re| 0x01;
delay_ms(2);
re <<= 1;
}
else
{
re = re| 0x00;
delay_ms(2);
re <<= 1;
}
LCD_CLK_High; //上升沿触发发送
delay_ms(10);
LCD_CLK_Low;delay_ms(2);
}
return re;
}
unsigned char ReadByte(void)
{
unsigned char byReturnValue,a ;
delay_ms(1);
Send_Byte(0xfe); //11111,RW(1),RS(1),0
delay_ms(1);
byReturnValue=re_byte() ;
delay_ms(1);
a=re_byte()>>4;
byReturnValue = byReturnValue|a;
return byReturnValue ;
}
/*鏄剧ず鐨勫瓧绗︿覆*/
void Display(unsigned char X,unsigned char Y,unsigned char *string)
{
if (X==0)
{X=0x80;}
else if (X==1)
{X=0x90;}
else if (X==2)
{X=0x88;}
else if (X==3)
{X=0x98;}
LCD_WCMD(X+Y);
while(*string )
{ //鏄
LCD_WDAT(*string++);
}
}
void Display_number(unsigned char X,unsigned char Y,unsigned char number)
{
if (X==0)
{X=0x80;}
else if (X==1)
{X=0x90;}
else if (X==2)
{X=0x88;}
else if (X==3)
{X=0x98;}
LCD_WCMD(X+Y);
LCD_WDAT(48+number);
}
void Clock_init()
{
unsigned char t;
BCSCTL1 = RSEL0 + RSEL1 + RSEL2; // XT2on, max RSEL
BCSCTL1&=~XT2OFF; //鎵撳紑XT2鎸崱鍣?
do
{
IFG1 &= ~OFIFG; // 娓呴櫎鎸崱鍣ㄥけ鏁堟爣蹇?
for (t = 255; t > 0; t--); // 寤舵椂锛岀瓑寰匵T2璧锋尟
}
while ((IFG1 & OFIFG) != 0); // 鍒ゆ柇XT2鏄惁璧锋尟
BCSCTL2 |= SELS+SELM_2; // SMCLK = XT2
}
void LCD_init()
{
LCD_WCMD(0x34); //鎵嶄綔
delay_ms(2);
LCD_WCMD(0x30); //嶄綔
delay_ms(2);
LCD_WCMD(0x0C); //鏄叧鍏夋爣
delay_ms(2);
LCD_WCMD(0x01); //
delay_ms(2);
}
/*------------------------------------------------
娓呭睆
------------------------------------------------*/
void ClrScreen()
{
LCD_WCMD(0x01);
delay_ms(15);
}
/*------------------------------------------------
璁剧疆鍒扮粯鍥炬ā寮?
------------------------------------------------*/
void SetGraphicMode()
{
LCD_WCMD(0x36); //閫夋嫨紡
delay_ms(20);
}
/*------------------------------------------------
鏄剧ず鍥剧墖
------------------------------------------------*/
void LCD_PutGraphic(unsigned char *img)
{
int i,j;
for(i=0;i<32;i++)
{
LCD_WCMD(0x80 + i); //
LCD_WCMD(0x80); //
for(j=0;j<16;j++)
{
LCD_WDAT(*img);
img++;
}
}
for(i=0;i<32;i++)
{
LCD_WCMD(0x80 + i);
LCD_WCMD(0x88);
for(j=0;j<16;j++)
{
LCD_WDAT(*img);
img++;
}
}
}
/*-------------------------------------------------------------------
澧炲姞鐢荤偣瀛愮▼搴?
-------------------------------------------------------------------*/
void DrawPoint(unsigned char X,unsigned char Y,unsigned char Color)
{
unsigned char Row,Tier,Tier_bit ;
unsigned char ReadOldH,ReadOldL ;
LCD_WCMD(0x34);
LCD_WCMD(0x36);
Tier=X>>4 ;
Tier_bit=X&0x0f ;
if(Y<32)
{
Row=Y ;
}
else
{
Row=Y-32 ;
Tier+=8 ;
}
LCD_WCMD(Row+0x80);
LCD_WCMD(Tier+0x80);
ReadByte();
ReadOldH=ReadByte();
ReadOldL=ReadByte();
LCD_WCMD(Row+0x80);
LCD_WCMD(Tier+0x80);
if(Tier_bit<8)
{
switch(Color)
{
case 0 :
ReadOldH&=(~(0x01<<(7-Tier_bit)));
break ;
case 1 :
ReadOldH|=(0x01<<(7-Tier_bit));
break ;
case 2 :
ReadOldH^=(0x01<<(7-Tier_bit));
break ;
default :
break ;
}
LCD_WDAT(ReadOldH);
LCD_WDAT(ReadOldL);
}
else
{
switch(Color)
{
case 0 :
ReadOldL&=(~(0x01<<(15-Tier_bit)));
break ;
case 1 :
ReadOldL|=(0x01<<(15-Tier_bit));
break ;
case 2 :
ReadOldL^=(0x01<<(15-Tier_bit));
break ;
default :
break ;
}
LCD_WDAT(ReadOldH);
LCD_WDAT(ReadOldL);
}
LCD_WCMD(0x30);
}
//----------------------------------------------
// 娓呮暣涓狦DRAM绌洪棿
//-----------------------------------------------
void clrgdram()
{
unsigned char x,y ;
for(y=0;y<64;y++)
for(x=0;x<16;x++)
{
LCD_WCMD(0x34);
LCD_WCMD(y+0x80);
//琛屽湴鍧€
LCD_WCMD(x+0x80);
//鍒楀湴鍧€
LCD_WCMD(0x30);
LCD_WDAT(0x00);
LCD_WDAT(0x00);
}
}
void main( void )
{
//char i;
//unsigned char x1,y1,colour=1 ;
WDTCTL = WDTPW + WDTHOLD; // Stop watchdog timer to prevent time out reset
Clock_init(); //
P5DIR=BIT0+BIT1+BIT2+BIT3;
LCD_PSB_Low;
LCD_init();
/*-----------------------------------------------------------------------------
鏄剧ず瀛楃
-----------------------------------------------------------------------------*/
Display(0,0,"胡斯哲");
Display(1,0,"武汉交通职业学院");
Display(2,1,"你好");
Display(3,2,"2013-7月-11日");
delay_ms(5000);
_BIS_SR(LPM0_bits);
}
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