单片机方波发生器无法产生信号？

正文摘要:

单片机源码： #include<reg52.h> sbit LCD_RS=P1^0; sbit LCD_RW=P1^1; sbit LCD_E=P1^2; #define LCD_DATA P2 #define LCD_BUSY 0x80 #define uchar unsigned char #define uint unsigned int uint spe ...