main.c

主要在C8051F020的平台上实现对运放UA741的失调电压、失调电流

#include<c8051f020.h>
#include"initial.h"
#include"LCD_1602.h"
#include"keyscan.h"
#include"display.h"

char flag=0;
void main()
{
	SYSCLK_Init( );
	PORT_Init( );	   
	Lcd1602_Initial( );	
	while(1)
	{
	    key_scan( ); 		
		if(num=='C')
		{	 
		     flag=0;
			 Lcd1602_Write_String(1,0,"Vio:");
			 P3=0x28;//测失调电压
			 display( );
		}		
	    if(num=='D')
		{
			flag=1;
			Lcd1602_Write_String(1,0,"Iio:");
	//			P3=0x2e;//测失调电流
		    display( );
		} 		
		if(num=='E')
		{
		    flag=2;
		    Lcd1602_Write_String(1,0,"Avd:");
			P3=0x18;//测Avd
			display( );
		} 		
		if(num=='F')
		{
		    flag=3;
		    Lcd1602_Write_String(1,0,"KcmR:");
			P3=0x30;//测KcmR
			display( );
		}
	
	}
}