这条lcd1602的C程序怎么总是有错误的？

显示全部楼层 · 2009-8-1 10:39:41

/*ShowChar(l++;*(ptr+i))*/;你把这“；”要么拿上去，要么就把/**/给去掉了，“；”那样就不要去了！提示不是说语法错误嘛！

千问 · 2009-8-1 10:39:41

#include#define uchar unsigned char#define uint unsigned intuchar code table[]="I LIKE MCU!";uchar code table1[]="www.TXMCU.COM";sbit lcden=P3^4;sbit lcdrs=P3^5;sbit dula=P2^6;sbit wela=P2^7;uchar num;void delay(uint z){ uint x,y; for(x=z;x>0;x--)for(y=110;y>0;y--);}void write_com(uchar com){ lcdrs=0; P0=com; delay(5); lcden=1; delay(5); lcden=0;}void write_data(uchar date){ lcdrs=1; P0=date; delay(5); lcden=1; delay(5); lcden=0;}void init(){ dula=0; wela=0; lcden=0; write_com(0x38); write_com(0x0e); write_com(0x06); write_com(0x01); write_com(0x80+0x10);}void main(){ init(); for(num=0;num<11;num++) {write_data(table[num]);delay(20); }// write_com(1); write_com(0x80+0x53); for(num=0;num<13;num++) {write_data(table1[num]);delay(20); } for(num=0;num<16;num++) {write_com(0x18);delay(20); } while(1);}这是郭天翔教程上的例程自己看下，用的也是1602，不知有用没。

千问 · 2009-8-1 10:39:41

void ShowString(unsigned char line,unsigned char *ptr){unsigned char l,i;l=line*0x10;for(i=0;i<16;i++)showchar(l++,*(ptr+i));}/*******ptr类型声明有问题吧，还有showchar两个参数之间要用逗号，要全小写,跟上面的保持一致，指针变量ptr要明确声明unsigned char *ptr，还有，如果你的字符串不够16个这样就不太好吧，改一下吧：*****/void ShowString(unsigned char line,unsigned char *ptr){unsigned char l,i;l=line*0x10;while(*ptr) {showchar(l,*ptr); l++;ptr++;} }