帮忙看一下设计哪里有问题。（无线收发系统，通过lcd显示键盘的输入）

1楼-- · 2019-03-24 22:02

发射---
#include <AT89X51.h>
static bit OP;
static unsigned int count;
static unsigned int endcount;
static unsigned char Flag;
char iraddr1;
char iraddr2;
void SendIRdata(char p_irdata);
void delay();
char getkey()
{
P1=0xfe;P3_6=P3_7=1;P3_3=1;
if(!P1_4)return 1;
if(!P1_5)return 2;
if(!P1_6)return 3;
if(!P1_7)return 4;
if(!P3_6)return 5;
if(!P3_7)return 6;
P1=0xfd;
if(!P1_4)return 11;
if(!P1_5)return 12;
if(!P1_6)return 13;
if(!P1_7)return 14;
if(!P3_6)return 15;
if(!P3_7)return 16;
P1=0xfb;
if(!P1_4)return 21;
if(!P1_5)return 22;
if(!P1_6)return 23;
if(!P1_7)return 24;
if(!P3_6)return 25;
if(!P3_7)return 26;
P1=0xf7;
if(!P1_4)return 31;
if(!P1_5)return 32;
if(!P1_6)return 33;
if(!P1_7)return 34;
if(!P3_6)return 35;
if(!P3_7)return 36;
P1=0xfF;P3_3=0;
if(!P1_4)return 41;
if(!P1_5)return 42;
if(!P1_6)return 43;
if(!P1_7)return 44;
if(!P3_6)return 45;
if(!P3_7)return 46;

return 0;
}
void main(void)
{
char key;
  count = 0;
  Flag = 0;
OP = 0;
P3_4 = 1;
EA = 1;
  TMOD = 0x11;
ET0 = 1;
  P1=0xff;
TH0 = 0xFF;
TL0 = 0xE6;
TR0 = 1;
iraddr1=0xff;
  iraddr2=0xff;
do{
key=getkey();
if(key==1)SendIRdata(0x12);
   if(key==11)SendIRdata(0x0b);
   if(key==25||key==35)SendIRdata(0x1a);
   if(key==15)SendIRdata(0x1e);
   if(key==6)SendIRdata(0x0e);
   if(key==16)SendIRdata(0x1d);
if(key==26)SendIRdata(0x1f);
  if(key==36)SendIRdata(0x1b);
if(key==32)SendIRdata(0x00);
   if(key==22)SendIRdata(0x01);
   if(key==23)SendIRdata(0x02);
if(key==24)SendIRdata(0x03);
   if(key==12)SendIRdata(0x04);
   if(key==13)SendIRdata(0x05);
   if(key==14)SendIRdata(0x06);
   if(key==2)SendIRdata(0x07);
   if(key==3)SendIRdata(0x08);
if(key==4)SendIRdata(0x09);
if(key==21)SendIRdata(0x2A);
   if(key==5)SendIRdata(0x2B);
   if(key==33)SendIRdata(0x2C);
   if(key==34)SendIRdata(0x2D);
   if(key==31)SendIRdata(0x2E);
if(key==41)SendIRdata(0x2F);
if(key==42)SendIRdata(0x30);
   if(key==43)SendIRdata(0x31);
   if(key==44)SendIRdata(0x32);
   if(key==45)SendIRdata(0x33);
   if(key==46)SendIRdata(0x34);
}while(1);
}
void timeint(void) interrupt 1
{
TH0=0xFF;
TL0=0xE6;
  count++;
}
void SendIRdata(char P_irdata)
{
   int i;
   char irdata=P_irdata;
   endcount=223;
   Flag=1;
   count=0;
   P3_4=0;
   do{}while(count<endcount);
endcount=117;
   Flag=0;
   count=0;
   P3_4=1;
   do{}while(count<endcount);
   irdata=iraddr1;
   for(i=0;i<8;i++)
   {
   endcount=10;
   Flag=1;
   count=0;
   P3_4=0;
   do{}while(count<endcount);
   if(irdata-(irdata/2)*2)
   {
   endcount=15;
   }
   else
   {
   endcount=41;
   }
   Flag=0;
   count=0;
   P3_4=1;
   do{}while(count<endcount);
   irdata=irdata>>1;
   }
   irdata=iraddr2;
   for(i=0;i<8;i++)
   {
   endcount=10;
   Flag=1;
   count=0;
   P3_4=0;
   do{}while(count<endcount);
   if(irdata-(irdata/2)*2)
   {
   endcount=15;
   }
   else
   {
   endcount=41;
   }
   Flag=0;
   count=0;
   P3_4=1;
   do{}while(count<endcount);
   irdata=irdata>>1;
   }
   irdata=~P_irdata;
   for(i=0;i<8;i++)
   {
   endcount=10;
   Flag=1;
   count=0;
   P3_4=0;
   do{}while(count<endcount);
   if(irdata-(irdata/2)*2)
   {
   endcount=15;
   }
   else
   {
   endcount=41;
   }
   Flag=0;
   count=0;
   P3_4=1;
   do{}while(count<endcount);
   irdata=irdata>>1;
   }
   irdata=P_irdata;
   for(i=0;i<8;i++)
   {
   endcount=10;
   Flag=1;
   count=0;
   P3_4=0;
   do{}while(count<endcount);
   if(irdata-(irdata/2)*2)
   {
   endcount=15;
   }
   else
   {
   endcount=41;
   }
   Flag=0;
   count=0;
   P3_4=1;
   do{}while(count<endcount);
   irdata=irdata>>1;
   }
   endcount=10;
   Flag=1;
   count=0;
   P3_4=0;
   do{}while(count<endcount);
   P3_4=1;
   Flag=0;
   }
   void delay()
   {
   int i,j;
   for(i=0;i<400;i++)
   {
   for(j=0;j<100;j++)
   {
   }
   }
   }