안녕하세요.
atmega8에서 HC06을 사용해서 통신을 연습하고 있습니다.
(전체코드) while문 제외하고는 위자드로 인해 생성된 제어문들입니다.
#include <io.h>
 
// Declare your global variables here
 
#define DATA_REGISTER_EMPTY (1<<UDRE)
#define RX_COMPLETE (1<<RXC)
#define FRAMING_ERROR (1<<FE)
#define PARITY_ERROR (1<<UPE)
#define DATA_OVERRUN (1<<DOR)
 
// USART Receiver buffer
#define RX_BUFFER_SIZE 8
char rx_buffer[RX_BUFFER_SIZE];
 
#if RX_BUFFER_SIZE <= 256
unsigned char rx_wr_index=0,rx_rd_index=0;
#else
unsigned int rx_wr_index=0,rx_rd_index=0;
#endif
 
#if RX_BUFFER_SIZE < 256
unsigned char rx_counter=0;
#else
unsigned int rx_counter=0;
#endif
 
// This flag is set on USART Receiver buffer overflow
bit rx_buffer_overflow;
 
// USART Receiver interrupt service routine
interrupt [USART_RXC] void usart_rx_isr(void)
{
char status,data;
status=UCSRA;
data=UDR;
if ((status & (FRAMING_ERROR | PARITY_ERROR | DATA_OVERRUN))==0)
   {
   rx_buffer[rx_wr_index++]=data;
#if RX_BUFFER_SIZE == 256
   // special case for receiver buffer size=256
   if (++rx_counter == 0) rx_buffer_overflow=1;
#else
   if (rx_wr_index == RX_BUFFER_SIZE) rx_wr_index=0;
   if (++rx_counter == RX_BUFFER_SIZE)
      {
      rx_counter=0;
      rx_buffer_overflow=1;
      }
#endif
   }
}
 
#ifndef _DEBUG_TERMINAL_IO_
// Get a character from the USART Receiver buffer
#define _ALTERNATE_GETCHAR_
#pragma used+
char getchar(void)
{
char data;
while (rx_counter==0);
data=rx_buffer[rx_rd_index++];
#if RX_BUFFER_SIZE != 256
if (rx_rd_index == RX_BUFFER_SIZE) rx_rd_index=0;
#endif
#asm("cli")
--rx_counter;
#asm("sei")
return data;
}
#pragma used-
#endif
 
// USART Transmitter buffer
#define TX_BUFFER_SIZE 8
char tx_buffer[TX_BUFFER_SIZE];
 
#if TX_BUFFER_SIZE <= 256
unsigned char tx_wr_index=0,tx_rd_index=0;
#else
unsigned int tx_wr_index=0,tx_rd_index=0;
#endif
 
#if TX_BUFFER_SIZE < 256
unsigned char tx_counter=0;
#else
unsigned int tx_counter=0;
#endif
 
// USART Transmitter interrupt service routine
interrupt [USART_TXC] void usart_tx_isr(void)
{
if (tx_counter)
   {
   --tx_counter;
   UDR=tx_buffer[tx_rd_index++];
#if TX_BUFFER_SIZE != 256
   if (tx_rd_index == TX_BUFFER_SIZE) tx_rd_index=0;
#endif
   }
}
 
#ifndef _DEBUG_TERMINAL_IO_
// Write a character to the USART Transmitter buffer
#define _ALTERNATE_PUTCHAR_
#pragma used+
void putchar(char c)
{
while (tx_counter == TX_BUFFER_SIZE);
#asm("cli")
if (tx_counter || ((UCSRA & DATA_REGISTER_EMPTY)==0))
   {
   tx_buffer[tx_wr_index++]=c;
#if TX_BUFFER_SIZE != 256
   if (tx_wr_index == TX_BUFFER_SIZE) tx_wr_index=0;
#endif
   ++tx_counter;
   }
else
   UDR=c;
#asm("sei")
}
#pragma used-
#endif
 
// Standard Input/Output functions
#include <stdio.h>
 
void main(void)
{
DDRB=(0<<DDB7) | (0<<DDB6) | (0<<DDB5) | (0<<DDB4) | (0<<DDB3) | (0<<DDB2) | (1<<DDB1) | (0<<DDB0);
 
DDRD=(0<<DDD7) | (0<<DDD6) | (0<<DDD5) | (0<<DDD4) | (0<<DDD3) | (0<<DDD2) | (1<<DDD1) | (0<<DDD0);
 
// USART initialization
// Communication Parameters: 8 Data, 1 Stop, No Parity
// USART Receiver: On
// USART Transmitter: On
// USART Mode: Asynchronous
// USART Baud Rate: 9600
UCSRA=(0<<RXC) | (0<<TXC) | (0<<UDRE) | (0<<FE) | (0<<DOR) | (0<<UPE) | (0<<U2X) | (0<<MPCM);
UCSRB=(1<<RXCIE) | (1<<TXCIE) | (0<<UDRIE) | (1<<RXEN) | (1<<TXEN) | (0<<UCSZ2) | (0<<RXB8) | (0<<TXB8);
UCSRC=(1<<URSEL) | (0<<UMSEL) | (0<<UPM1) | (0<<UPM0) | (0<<USBS) | (1<<UCSZ1) | (1<<UCSZ0) | (0<<UCPOL);
UBRRH=0x00;
UBRRL=0x67;
 
ACSR=(1<<ACD) | (0<<ACBG) | (0<<ACO) | (0<<ACI) | (0<<ACIE) | (0<<ACIC) | (0<<ACIS1) | (0<<ACIS0);
 
#asm("sei")
 
while (1)
      {
      unsigned int k;
        k=getchar();
 
        if(k=='1'){PORTB.1=1; //led on
            printf("Hello"); 
        }
 
        if(k=='0'){PORTB.1=0; //led off
            putchar('x'); 
        }
      // Place your code here
 
      }
}
 
(제어)
while (1)
      {
      unsigned int k;
        k=getchar();
 
        if(k=='1'){PORTB.1=1; //led on
            printf("Hello"); 
        }
 
        if(k=='0'){PORTB.1=0; //led off
            putchar('x'); 
        }
      // Place your code here
 
      }
}
 
우선 긴 문자를 보내주는건 printf를 사용하면 된다는것을 깨달았습니다.
근데 만약 핸드폰에서 ledon을 써서 보내면 
        if(k=="ledon"){PORTB.1=1; //led on
            printf("Hello"); 
        }
이런식으로 제어를 하고 싶습니다.
도움좀 부탁드리겠습니다.