AVR红外接收与电流/转速控制解码代码实现

/*搞不懂，怎么很多人学这个这么难，小弟我学AVR没买任何书，在网上下了几本书。ISP下载自己开始并口加几个电阻，搞定。后来感觉不专业就画了一个加244的小板。感觉专业多了（还准备拿去卖20元一个）。学的时候就是遇到几次选外频的事。遇到最多的还是电源的问题（电源不行很难烧进去经常出错）。有一点说明小弟的芯片是国外直接拿过来得。初次拿到AVR芯片两天就用a8写出红外接收解码。后来又做了个电流检测（ma级），转速检测，自动设置参数，自动校正，串口通讯，显示就不用谈，还加红外遥控功能。也都没遇到过什么问题
 */ 
#include <avr/io.h> 
#include <avr/interrupt.h> 
#include <avr/signal.h> 
#include <avr/pgmspace.h> 
#include <stdio.h> 
#include <avr/eeprom.h> 
#define uchar unsigned char 
#define uint unsigned int 
#define sbi(x,y) (x|=(1<<y)) 
#define cbi(x,y)  (x&=~(1<<y)) 
#define three PB0 
#define two PB1 
#define one PB2 
#define six PB3 
#define five PB4 
#define four PB5 
#define indata_key (PIND&0x80) 
#define indata (PIND&0x10) 
#define turn_speed_key (PIND&0x08) 
#define temp_key (PIND&0x04) 
unsigned long temp_i_int=0; 

uint  turn_speed_all_time=0; 
uint eprom__temp_data9=0,eprom__temp_data10=0,eprom__temp_data11=0,eprom__temp_data12=0; 
uint eprom__temp_data5=0,eprom__temp_data6=0,eprom__temp_data7=0,eprom__temp_data8=0; 
uint time=0,current_data=0,tachometer_data=0,eprom__temp_data1=0,eprom__temp_data2=0; 
uint shijian=0,processcode=0,save_eprom=0; 
uchar turn_speed_key_downtime=0,turn_speed_key_uptime=0,turn_speed_key_down=0,turn_speed_key_up=0; 

uchar current_ok=0,disp_mode=1,key_process=0,turn_speed_ok=0; 
uchar err=0,err00=0,err1=0,err01=0,err10=0; 
uchar process=0,use,usedata2=0xff,temp_i=0; 
uchar onedata=0,twodata=0,threedata=0,fourdata=0,fivedata=0,sixdata=0; 
uchar left_hight_data=0,left_middle_data=0,left_low_data=0,right_hight_data=0,right_middle_data=0,right_low_data=0; 
uchar mode2_seat=0,next=0; 
//const unsigned char led[] PROGMEM={0xfa,0x60,0xdc,0xf4,0x66,0xb6,0xbe,0xe0,0xfe,0xf6,0xee,0x3e,0x9a,0x7c,0x9e,0x8e}; 
unsigned char led[]={0xfc,0x60,0xda,0xf2,0x66,0xb6,0xbe,0xe0,0xfe,0xf6,0xee,0x3e,0x9c,0x7a,0x9e,0x8e}; 
//unsigned char led[]={0xfa,0x60,0xdc,0xf4,0x66,0xb6,0xbe,0xe0,0xfe,0xf6,0xee,0x3e,0x9a,0x7c,0x9e,0x8e}; 
unsigned int temp_data[256]; 

//void eeprom_write_byte(uint8_t *addr,uint8_t val); 
void delay(unsigned int v) 
          { 
           while(v)v--; 
           } 
void adc_init(void)                //ADC初始化 
{ 
 DDRA=0x00; 
 PORTA=0x00; 
 ADCSRA =0x00;                 //设置前，先关闭ADC 
 //ADMUX=ADMUX+0x10; 
 //ADMUX|=(1<<REFS0); //选择内部AVCC为基准 
 ACSR=(1<<ACD);     //关闭模拟比较器 
 ADCSRA=(1<<ADEN)|(1<<ADSC)|(1<<ADPS2)|(1<<ADPS1)|(0<<ADPS0);        //64分频 
} 


void clrdis() 
           {