lcd.c

MSP430F135与OCM12232c-2的串行显示测试程序。文字与图形分层显示。

#include "includehfile.h"




/*------------------初始化-----------------*/
void init_lcd (void)
{
  LCDDIR |= (cs+std+sclk);//cs、sclk、std脚为输出
  LCDOUT &=~cs;//cs初始为低电平
  wr_lcd (comm,0x30);  /*30---基本指令动作*/   
  wr_lcd (comm,0x01);  /*清屏，地址指针指向00H*/
  LCDdelay(80);
  wr_lcd (comm,0x06);  /*光标的移动方向*/
  wr_lcd (comm,0x0c);  /*开显示，关游标*/
}
/*---------------显示汉字或字符----------------*/
void chn_disp (uchar const *chn)
{
  uchar i,j;
  wr_lcd (comm,0x30);
  wr_lcd (comm,0x80);
  j=0;
  for (i=0;i<16;i++)
  wr_lcd (dat,chn[j*16+i]);
  wr_lcd (comm,0x90);
  j=1;
  for (i=0;i<16;i++)
  wr_lcd (dat,chn[j*16+i]);
}
/*----------------显示图形-----------------*/
void img_disp (uchar const *img)
{
  uchar i,j;
  for(j=0;j<32;j++)
  {
    for(i=0;i<8;i++)
    {
      wr_lcd (comm,0x34);
      wr_lcd (comm,y+j);
      wr_lcd (comm,x+i);
      wr_lcd (comm,0x30);
      wr_lcd (dat,img[j*16+i*2]);
      wr_lcd (dat,img[j*16+i*2+1]);
    }
  }
  wr_lcd (comm,0x36);
}
/*--------------显示点阵----------------*/
void lat_disp (uchar data1,uchar data2)
{
  uchar i,j;
  for(j=0;j<16;j++)
  {
    for(i=0;i<8;i++)
    {
      wr_lcd (comm,0x34);
      wr_lcd (comm,y+j*2);
      wr_lcd (comm,x+i);
      wr_lcd (comm,0x30);
      wr_lcd (dat,data1);
      wr_lcd (dat,data1);
    }
    for(i=0;i<8;i++)
    {
      wr_lcd (comm,0x34);
      wr_lcd (comm,y+j*2+1);
      wr_lcd (comm,x+i);
      wr_lcd (comm,0x30);
      wr_lcd (dat,data2);
      wr_lcd (dat,data2);
    }
  }
  wr_lcd (comm,0x36);
}
/*-----------------------------------------------*/
//当data1=0xff,data2=0xff时,在x0,y0处反白显示16xl*yl.
void con_disp (uchar data1,uchar data2,uchar x0,uchar y0,uchar xl,uchar yl)
{
  uchar i,j;
  for(j=0;j<yl;j++)
  {
    for(i=0;i<xl;i++)
    {
      wr_lcd (comm,0x34);
      wr_lcd (comm,y0+j);
      wr_lcd (comm,x0+i);
      wr_lcd (comm,0x30);
      wr_lcd (dat,data1);
      wr_lcd (dat,data2);
    }
  }
  wr_lcd (comm,0x36);
}
/*--------------清DDRAM------------------*/
void clrram (void)
{
  wr_lcd (comm,0x30);
  wr_lcd (comm,0x01);
  LCDdelay (120);
}
/*---------------------------------------*/
void wr_lcd (uchar dat_comm,uchar content)
{
	uchar a,i,j,temp;
	LCDdelay (40);
	a=content;
	LCDOUT |= cs;//cs=1;
	LCDOUT &= ~sclk;//sclk=0;
	LCDOUT |= std;//std=1;
	for(i=0;i<5;i++)
	{
		LCDOUT |= sclk;;//sclk=1;
		LCDOUT &= ~sclk;//sclk=0;
	}
	LCDOUT &=~ std;//std=0;
	LCDOUT |= sclk;//sclk=1;
	LCDOUT &=~ sclk;//sclk=0;
	if(dat_comm)
		LCDOUT |= std;//std=1;   //data
	else
		LCDOUT &=~ std;//std=0;   //command
	LCDOUT |= sclk;//sclk=1;
	LCDOUT &=~ sclk;//sclk=0;
	LCDOUT &=~ std;//std=0;
	LCDOUT |= sclk;//sclk=1;
	LCDOUT &=~ sclk;//sclk=0;
	for(j=0;j<2;j++)
	{
		for(i=0;i<4;i++)
		{
		        temp=a;
		        temp=temp&0x80;
		        if(temp==0)//std＝最高位
		          LCDOUT &=~ std;
		        else
		          LCDOUT |= std;
		        
			a=a<<1;
			//std=CY;
			LCDOUT |= sclk;//sclk=1;
			LCDOUT &=~ sclk;//sclk=0;
		}
		LCDOUT &=~ std;//std=0;
		for(i=0;i<4;i++)
		{
			LCDOUT |= sclk;//sclk=1;
			LCDOUT &=~ sclk;//sclk=0;
		}
	}
}
/*---------------------------------------*/
void LCDdelay (uint us)   //delay time
{
  while(us--);
}
void LCDdelay1 (uint ms)
{
  uint i,j;
  for(i=0;i<ms;i++)
  for(j=0;j<15;j++)
  LCDdelay(1);
}