为什么我的dspic30f4011上LCD就是不能显示，以下是程序。
#include<p30f4011.h>
_FOSC(CSW_FSCM_OFF&XT_PLL4); //4倍频晶振，Failsafe时钟关闭
_FWDT(WDT_OFF); //关闭看门狗定时器
_FBORPOR(PBOR_OFF&MCLR_EN); //掉电复位禁止，MCLR复位时能
_FGS(CODE_PROT_OFF); //代码保护禁止
#define RS LATFbits.LATF4
#define RW LATFbits.LATF5
#define E LATBbits.LATB6
#define out LATD //4位输入--RD0-4
#define uchar unsigned char
void LCD_initialize();//初始化函数
void check_busy();//查忙函数，但是这次没有用到
void write_command(uchar com);//写命令函数
void write_data(uchar dat);//写数据函数
void string(uchar ad,uchar*p,uchar n);//使Lcd显示字符的函数
void delay(uchar i);//延时函数
void delay(uchar i)//延时函数
{
uchar t;
while(i--)
{
for(t=0;t<120;t++);
}
}
void write_command(uchar com)//写命令函数
{
delay(1);
E=0;
RS=0;
RW=0;
out=com;
delay(1);
E=1;
delay(1);
E=0;
out=com <<4;
delay(1);
E=1;
delay(1);
E=0;
}
void write_data(uchar dat)//写数据函数
{
delay(1);
E=0;
RS=1;
RW=0;
out=dat;
delay(1);
E=1;
delay(1);
E=0;
out=dat <<4;
delay(1);
E=1;
delay(1);
E=0;
}
void LCD_initialize()//初始化函数
{
//RW=0;
write_command(0x32);
write_command(0x28);
write_command(0x0c);
write_command(0x06);
write_command(0x01);
write_command(0x80);
}
void string(uchar ad,uchar *p,uchar n)//显示字符函数
{
uchar i;
write_command(ad);
for(i=0;i<n;i++)
{
write_data(*p++);
delay(100);
}
}
void main()
{
delay(1);
LCD_initialize();//LCD初始化
while(1)
{
string(0x85,"welcome",7);//写入welcome
string(0xc2,"Harbin China",12);//写入Harbin China
delay(100);
write_command(0x01);//清屏
delay(100);
}
}
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