问急求结合单片机STC89C52，HC-SR04超声波传感器，LCD1602的超声波测距代码

恩，建议你先从一些简单的程序入手，，流水灯数码管什么的，。再去做超声波的设计吧

这个是主函数的1602.h的内容如下： #include"intrins.h"#define uchar unsigned char#define uint  unsigned intsbit E=P2^7;  sbit RW=P2^6;sbit RS=P2^5;  void delay(){ uchar i=12; while(i--) {  _nop_();  _nop_();  _nop_();  _nop_();  _nop_(); } }bit Busy(void){ bit busy_flag = 0; RS = 0; RW = 1; E = 1; delay(); busy_flag = (bit)(P0 & 0x80); E = 0; return busy_flag;}void wcmd(uchar del){ while(Busy()); RS = 0; RW = 0; E = 0; delay(); P0 = del; delay(); E = 1; delay(); E = 0;}void wdata(uchar del){ while(Busy()); RS = 1; RW = 0; E = 0; delay(); P0 = del;    delay(); E = 1; delay(); E = 0;}void L1602_init(void){ wcmd(0x38); wcmd(0x0c); wcmd(0x06); wcmd(0x01);}void L1602_char(uchar hang,uchar lie,char sign){ uchar a; if(hang == 1) a = 0x80; if(hang == 2) a = 0xc0; a = a + lie - 1; wcmd(a); wdata(sign);}void L1602_string(uchar hang,uchar lie,uchar *p){ uchar a,b=0; if(hang == 1) a = 0x80; if(hang == 2) a = 0xc0; a = a + lie - 1; while(1) {  wcmd(a++);  b++;  if((*p == '\0')||(b==17)) break;  wdata(*p);  p++; }}