USART 통신, FND , ATmega128 , AVR - 0316

 

 USART 통신, FND , ATmega128 , AVR 

[ 간략 설명 ]

◈ USART 통신, FND , ATmega128 , AVR

◈

USART 통신, FND , ATmega128 , AVR

내용 넣기~~~~

 

 

◆◆ ATmega128 : USART, FND 출력 제어  P.444 ◆◆

 

0316A_USART_FND_p444.asm

0316a_usart_fnd_p444.c

0316A_USART_FND_p444.hex

0316A_USART_FND_p444.prj

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/*
                  USART                      P.444
                  keyboard > FND 출력
                  0316A_USART_FND_p444.c
*/                                                            

#include <mega128.h>
char Seg_Cathode[16] = { 0x3f, 0x06, 0x5b, 0x4f, 0x66, 0x6d, 0x7d, 0x27, 0x7f, 0x6f, 0x77, 0x7c,0x39, 0x5e, 0x79, 0x71 };
//char Seg_Anode[16] = { 0xc0, 0xf9, 0xa4, 0xb0, 0x99, 0x92, 0x82, 0xf8, 0x80, 0x90,0x88, 0x83, 0xc6, 0xa1, 0x86, 0x8e };
 // P.105 FND 값 Table

void main(void)
{
                  char AA, CD;
                 UCSR0A = 0x00;
                 UCSR0B = 0b00011000;                // 송수신 인에이블  TXEN = 1, RXEN = 1
                 UCSR0C = 0b00000110;                 // 비동기 데이터 8비트 모드
                 UBRR0H = 0;                               // X-TAL = 16MHz , BAUD = 9600
                 UBRR0L = 103;
                
                 DDRB = 0xff;
                 DDRF = 0xff;
                 PORTF = 0b00000000;                 // FND 4개 사용,  0b11100000 : 오른쪽 하나 사용
                 CD = 0;
                
                 while(1){
                                  PORTB = Seg_Cathode[CD];
                               
                                  if( ( UCSR0A & 0x80 ) != 0 ){
                                             AA = UDR0;                                                                                  // 날아온 문자 AA
                                             if( AA >= '0' && AA <= '9' ) CD = AA - '0';                                  // 0 < 9 AA ('0' = 0x30)
                                             else if( AA >= 'a' && AA <= 'f' ) CD = AA - 'a' + 10;
                                             else if( AA >= 'A' && AA <= 'F') CD = AA - 'A' + 10;
                                  }//endif
                 }//endwhlie
                 
}//end main

 

 

 

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터미널 입력창

 

 

 

◆◆ ATmega128 : USART, FND 출력 제어  P.444 ◆◆

 

 

 

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