麻烦大家看一下，就是不显示东西，我调了两天了，好伤心。谢谢多多交流~
#include <msp430g2553.h>

#define uint unsigned int
#define uchar unsigned char

#define CS_H P2OUT|=BIT2
#define CS_L P2OUT&=~BIT2

#define SID_H P2OUT|=BIT1
#define SID_L P2OUT&=~BIT1

#define SCLK_H P2OUT|=BIT0
#define SCLK_L P2OUT&=~BIT0

void delay(uchar z)
{
  uint x,y;
  for(x = 110;x>0;x--)
    for(y = z;y>0;y--);
}

void PORT_init()
{
  WDTCTL = WDTPW + WDTHOLD;
  P1DIR = 0XFF;
  P1OUT = 0XFF;
}

void Sys_init()
{
  WDTCTL = WDTPW + WDTHOLD;
  BCSCTL1 = CALBC1_8MHZ;
  DCOCTL = CALDCO_8MHZ;//设置内部时钟8M
}

void send_byte(uchar bbyte)
{
  uchar i;
  for(i=0;i<8;i++)
  {
    P2DIR = 0xff;
    if((bbyte<<i) & 0x80)
    {
      SID_H;
    }
    else
    {
      SID_L;
    }
    SCLK_L;
    SCLK_H;
  }
}

void LCD12864_write_cmd(uchar ddata)
{
  uchar hdata,ldata;
  hdata = ddata & 0xf0;
  ldata = (ddata<<4) & 0xf0;
//  CS_H;
  send_byte(0xf8);
  delay(5);
  send_byte(hdata);
  delay(1);
  send_byte(ldata);
  delay(1);
//  CS_L;
}

void LCD12864_write_data(uchar ddata)
{
  uchar hdata,ldata;
  hdata = ddata & 0xf0;
  ldata = (ddata<<4) & 0xf0;
//  CS_H;
  send_byte(0xfa);
  delay(5);
  send_byte(hdata);
  delay(1);
  send_byte(ldata);
  delay(1);
//  CS_L;
}

void LCD12864_init()
{
  delay(10);
  CS_H;
  LCD12864_write_cmd(0x30);
  LCD12864_write_cmd(0x0c);//
  LCD12864_write_cmd(0x01);
//  LCD12864_write_cmd(0x06);
}

void LCD12864_write(uchar add,uchar *str)
{
  uchar k;
  LCD12864_write_cmd(add);
  for(k = 0;k<*str;k++)
  {
    LCD12864_write_data(*str);
    str++;
  }
}

void main(void)
{
  WDTCTL = WDTPW + WDTHOLD;
  PORT_init();
  Sys_init();

  LCD12864_init();

  while(1)
  {
    delay(5);
    LCD12864_write_cmd(0x80);
    LCD12864_write(0x80,"???V");
    LCD12864_write(0x90,"哇");
  }
}