请教1602的问题！！

zcy609841519

请教1602的问题！！ [复制链接]

请问有哪位大神能帮我看看这个程序么。1602显示0123，接口没问题的，就是显示不出来。

#include  "msp430.h" //引用头文件
#include  "msp430f5438.h"
/***************宏定义***************/
#define  uchar unsigned char
#define  uint  unsigned int
#define  RS_H P2OUT|= BIT1; //RS=P2.1
#define  RS_L P2OUT&=~BIT1;
#define  RW_H P2OUT|= BIT2; //RW=P2.2
#define  RW_L P2OUT&=~BIT2;
#define  EN_H P2OUT|= BIT3; //EN=P2.3
#define  EN_L P2OUT&=~BIT3;

void delay(long unsigned int time)
{
  while(time--);             //延时子函数
}

void writeCmd(unsigned char wdata)    //写命令
{
  delay(100);
  RS_L;
  RW_L;
  P1OUT = wdata;
  EN_H;
  delay(100);
  EN_L;
}

void writeData(unsigned char wdata)    //写数据
{
  delay(100);
  RS_H;
  RW_L;
  P1OUT = wdata;
  EN_H;
  delay(100);
  EN_L;
}

void LCD_init(void)
{
  delay(1000);
  writeCmd(0x38);    //设置16X2显示，5X7点阵，8位数据接口
  delay(500);
  writeCmd(0x01);    //显示清屏
//writeCmd(0x0c);    //开显示，关闭光标，当然光标也就不能显示了
//writeCmd(0x0e);    //开显示，显示光标，但是光标不闪烁
  writeCmd(0x0f);    //开显示，显示光标，光标闪烁
  writeCmd(0x06);    //写字符时整体不移动
}

int main(void)
{
  WDTCTL=WDTPW+WDTHOLD;
  while(1)
  {
P1DIR =0xff;
P2DIR =0x0e;       //BIT1+BIT2+BIT3
LCD_init();
writeCmd(0x80);
writeData(0x30+0);
writeData(0x30+1);
writeData(0x30+2);
writeData(0x30+3);
while(1);
  }
}