Няшная / Говнокод #3049 Ссылка на оригинал

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if( pc_rbyte == 0xFA && pc_buff_ready == 0 && pc_rec_pos == 0)
	{
		pc_rec_en = 1;
		return;
	}	
	return;
}

ISR(USART0_RX_vect)
{
	cli();
	rbyte = rs485_reciv();
	
	if( COMM == 1 && rbyte != 0x42 )
		xp_rec_en = 1;
	
	if(COMM == 1 && rbyte == 0x42)
	{
		//xp_rec_pos++;
		xp_response[xp_rec_pos] = xp_xor;
		COMM = 0;
		xp_rec_en = 0;
		xp_buff_ready = xp_rec_pos;
		xp_rec_pos = 0;
		xp_rec_en = 0;
		xp_xor = 0;
	}
	
	
	if( xp_rec_en == 1 ) 
	{
		if( rbyte != xp_xor && xp_rec_pos<16 )
		{
			xp_response[xp_rec_pos] = rbyte;
			xp_xor = xp_xor^rbyte;
			xp_rec_pos++;
		}else{
			xp_buff_ready = xp_rec_pos;
			xp_rec_pos = 0;
			xp_rec_en = 0;
			xp_xor = 0;
		}
	}		
	
	if( rbyte == 0x60 )
	{
		xp_rec_en = 1;
		xp_response[0] = rbyte;
		xp_rec_pos++;
	}
	
	if( rbyte == 0x41 && my_window!=1)
		COMM = 1;		
	
	if( (bit9&0b00000010) == 0b00000010 && (rbyte&0b00011111) == myXPaddress ) 
	
		switch( (rbyte&0b01100000) )
		{
			case 0b01000000: ack = 0; if( pc_buff_ready == 1 ) my_window = 1; xp_rec_en = 0;break; // NormalInquary
			case 0b01100000: ack = 0; my_window = 0; xp_rec_en = 1;break; // CallByte
			case 0b00000000: ack = 1; my_window = 0; xp_rec_en = 0;break; // ACK!
		}
	
	rbyte = 0;
	sei();
	
	return;
}

int main(void)
{
	avr_init();
	sei();

	//PORTD &=~(1<<transmit_en);
	//pc_buff_ready = 1;
	while (1)
	{
		//if( pc_buff_ready == 1 ) //pc_buff_ready == 1 && 
		//{
			if( my_window == 1 )
			{
				cli();
				_delay_us(30);
				//PORTD |= (1<<transmit_en);
				PORTG |=_BV(PG4);	 //disable DE RS485
				PORTD |=_BV(PD5);  //enable RE RS485
				//_delay_us(5);
				for( i=0; pc_rec_pos != i; i++ )
					rs485_ransmit(pc_command[i]);
					
				while ( !( UCSR0A & (1<<UDRE0)) );
				_delay_us(160);
				PORTG &=~_BV(PG4);	 //disable DE RS485
				PORTD &=~_BV(PD5);  //enable RE RS485
				
				my_window = 0;
				clear_buff(0);
				pc_buff_ready = 0;
				pc_rec_pos = 0;

Запостил: JovialLiX JovialLiX, (Updated )

Комментарии (2) RSS

  • ava JovialLiX # Ссылка на оригинал 0

    sei();
    }
    //}

    if( xp_buff_ready > 0 && pc_rec_en == 0 )
    {
    for( i=0; xp_buff_ready!=i; i++ )
    rs232_transmit(xp_response[i]);

    clear_buff(1);
    xp_buff_ready = 0;
    xp_rec_en = 0;
    my_window = 0;
    }
    if( ack == 1 )
    {
    rs232_transmit('A');
    rs232_transmit('C');
    rs232_transmit('K');
    rs232_transmit(' ');
    rs232_transmit('E');
    rs232_transmit('r');
    rs232_transmit('r');
    rs232_transmit('o');
    rs232_transmit('r');
    ack = 0;
    my_window = 0;
    xp_rec_en = 0;
    }
    };
    return 0;
    }

    void clear_buff(unsigned char buff)
    {
    if( buff == 0 )
    for( i=0; i<18; i++ )
    pc_command[i] = 0;
    if( buff == 1 )
    for( i=0; i<16; i++ )
    xp_response[i] = 0;
    return;
    }

    void avr_init(void)
    {
    // 62500 9bit 1 stop no parity
    UCSR0A=0x00;
    UCSR0B=0x9C;
    UCSR0C=0x86;
    UBRR0H=0x00;
    UBRR0L=0x0F;

    // 56000 8bit 1 stop no parity
    UCSR1A=0x00;
    UCSR1B=0x98;
    UCSR1C=0x06;
    UBRR1H=0x00;
    UBRR1L=0x11;

    DDRC = 0b00000011;
    PORTC= 0b00000000;

    DDRD = 0b00000001;
    PORTD= 0b00000000;

    DDRG = 0b00011011; //определить все ножки порта G (PG3 - DE status, PG4 - DE counter)
    PORTG = 0b11100100; //включить подтяжку резисторов

    DDRD = 0b11111000; //PD0, PD1 - SCL-SDA, PD2 -RxD1, PD3 - TxD1 PD4 - STAT/COUN, PD5 - RE STAT, PD6 - RE Coun, PD7 - testLD
    PORTD = 0b01101111; //подключить внутренние резисторы на входах, a выходы установить в "0"

    PORTG &=~_BV(PG4); //disable DE RS485
    PORTD &=~_BV(PD5); //enable RE RS485

    return;
    }
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Помни, guest, за тобой могут следить!

    А не использовать ли нам bbcode?

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