[loveboom3012]

mình đã làm được rồi, mô phỏng chạy nhưng protues báo lỗi thế này bạn xem giùm mình nha, code

#include <16f877a.h>
#include <def_877a.h>
#device ADC=10
#fuses nowdt,noprotect,nolvp,hs
#use delay(clock=20000000)
const unsigned char ma7[10]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90};
int16 kqadc;
int dem,dv,ch,tr,ng,i;
unsigned char mdv,mch,mtr,mng;
void giaima7doan(int16 tam)
{
	ng=tam/1000;
	tam=tam%1000;
	tr=tam/100;
	tam=tam%100;
	ch=tam/10;
	dv=tam%10;
	mng=ma7[ng];
	mtr=ma7[tr];
	mch=ma7[ch];
	mdv=ma7[dv];
	mch=mch&0x7f;
}
//hien thi quet led
void hienthi()
{
	for(i=0;i<=30;i++)
	{
	output_d(mdv);	output_low(pin_b2);	delay_us(100);	output_high(pin_b2);
	output_d(mch);	output_low(pin_b3);	delay_us(100);	output_high(pin_b3);
	output_d(mtr);	output_low(pin_b4);	delay_us(100);	output_high(pin_b4);
	output_d(0x9c); output_low(pin_b1);	delay_us(100);	output_high(pin_b1);
	output_d(0xc6);	output_low(pin_b0);	delay_us(100);	output_high(pin_b0);	
}
}
void main()
{
	set_tris_A(0b00000001);
	set_tris_D(0x00);
	set_tris_b(0x00);
//	set_tris_C(0x00);
	portb=0xff;
	setup_ADC(ADC_clock_div_32);
	setup_adc_ports(AN0);
	set_adc_channel(0);
	while(1)
		{
			kqadc=0;
			for(i=0;i<10;i++)
			{kqadc=kqadc+read_adc();}
				kqadc=kqadc/10;
				kqadc=kqadc*4.887;
				giaima7doan(kqadc);
				hienthi();
			kqadc=0.4887*read_adc();
			if(kqadc>40)
				{
					output_high(pin_c0);
				}
			else
				{
					output_low(pin_c0);
				}	
		
		}
}

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