#include <hidef.h> /* common defines and macros */
#include <MC9S12XS128.h> /* derivative information */
#pragma LINK_INFO DERIVATIVE "mc9s12xs128"
#define RS PORTA_PA7
#define RW PORTA_PA6
#define E PORTA_PA5
#define PSB PORTA_PA4
#define RST PORTA_PA0
unsigned char dis1[]={"床前明月光，"}; //一个汉字相当于两个字符
unsigned char dis2[]={"疑是地上霜。"};
unsigned char dis3[]={"举头望明月，"};
unsigned char dis4[]={"低头思故乡。"};
/*******************延时1ms*cnt程序**********************/
void delay(int cnt)
{
int t1,t2;
for(t1=0;t1<cnt;t1++)
{
t2 = 5000;
while(t2--);
}
}
/*******************写命令函数**********************/
void write_cmd(unsigned char cmd)
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