#include<msp430g2553.H>
#include<intrinsics.h>

#define uchar unsigned char
#define uint  unsigned int

#define RS_1 P2OUT |= 0X01
#define RS_0 P2OUT &= ~0X01
#define RW_1 P2OUT |= 0X02
#define RW_0 P2OUT &= ~0X02
#define E_1  P2OUT |= 0X04
#define E_0  P2OUT &= ~0X04
#define data_port P1OUT
#define com_port  P1OUT

//延时程序 ms//

void delay_ms(uchar n)
{
  uint i,j;
  for(i=n;i>0;i++)
    for(j=1140;j>0;j--);
}

//写地址//

void write_com(uchar com)
{
  RS_0;
  RW_0;

  P1OUT |= com;
  E_1;
   delay_ms(10);
  E_0;

}


//读数据//

void write_data(uchar data)
{
  RS_1;
  RW_0;
  
  P1OUT |= data;
  E_1;
  delay_ms(10);
  E_0;
  
}

//初始化//

void init()
{
  RW_1;
  delay_ms(5);
  write_com(0x28);
  delay_ms(1);
  write_com(0x0c);
  delay_ms(1);
  write_com(0x06);
  delay_ms(1);
  write_com(0x01);
}

//主程序//

void main(void)
{
  uint m=1;
  WDTCTL=WDTPW+WDTHOLD;
  BCSCTL1=CALBC1_1MHZ;
  DCOCTL=CALDCO_1MHZ;
  BCSCTL2=SELM_1+DIVM_0;
  
  P1SEL &= 0X00;
  P2SEL &= 0X00;
  P1DIR = 0XFF;
  P2DIR = 0XFF;
  P1OUT &= 0X00;
  P2OUT &= 0X00;
   init();
   while(1)
   {
      write_com(0x80+0x01);
      delay_ms(1);
      write_data(m);
      delay_ms(200);
   }
}
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