// MCU BASIC: https://www.basic4mcu.com
// DateTime : 2019-05-02 오후 6:57:26
// by Ok-Hyun Park
//
#include <avr/io.h>
#include <util/delay.h>
//
unsigned char segTable[17]={0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7D,0x07,0x7F,0x6F,0x77,0x7C,0x58,0x5E,0x79,0x71,0x00};
unsigned char cnumber[5]={0x10,0x10,0x10,0x10,0x10};
//
void Seg7Init(){
  PORTD=0xF0; DDRD=0xF0;
  DDRA=0xFF;
}
//
void Seg7DispNum(unsigned int num,unsigned int radix){
  int j;
  for(j=0; j<5; j++)cnumber[j]=0x10;
  j=0; do{ cnumber[j++]=num%radix; num/=radix; }while(num);
  //
  for(j=0; j<4; j++){
    PORTD=(PORTD|0xF0) & (~(0x10<<j));
    PORTA=~segTable[cnumber[j]];
    _delay_ms(5);
  }
}
//
Seg7Dispstr(char *s){
  int j; char c;
  for(j=0; j<4; j++){
    c=*s++;
    if     ((c>='0')&&(c<='9'))c=c-'0';      // ‘0’ ~ ‘9’
    else if((c>='A')&&(c<='F'))c=c-'A'+0x0A; // ‘A’ ~ ‘F’
    else if((c>='a')&&(c<='f'))c=c-'a'+0x0A; // ‘a’ ~ ‘f’
    else                       c=c-0x16;     // 나머지 문자는 블랭크
    cnumber[j]=c;
  }
  //
  for(j=0; j<4; j++){
    PORTD=(PORTD|0xF0) & (~(0x10<<j));
    PORTA=~segTable[cnumber[j]];
    _delay_ms(5);
  }
}