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Код: Выделить всё

unsigned char hamminge[16]={0x15,0x02,0x49,0x5E,0x64,0x73,0x38,0x2F,0xD0,0xC7,0x8C,0x9B,0xA1,0xB6,0xFD,0xEA};
unsigned char hammingd[256]={
0x01,0x00,0x01,0x01,0x00,0x00,0x01,0x01,0x02,0x02,0x01,0x03,0x0A,0x02,0x03,0x07,
0x00,0x00,0x01,0x01,0x00,0x00,0x01,0x00,0x06,0x02,0x03,0x0B,0x02,0x00,0x03,0x03,
0x04,0x0C,0x01,0x05,0x04,0x04,0x05,0x07,0x06,0x06,0x07,0x07,0x06,0x07,0x07,0x07,
0x06,0x04,0x05,0x05,0x04,0x00,0x0D,0x05,0x06,0x06,0x06,0x07,0x06,0x06,0x07,0x07,
0x00,0x02,0x01,0x01,0x04,0x00,0x01,0x09,0x02,0x02,0x03,0x02,0x02,0x02,0x03,0x03,
0x08,0x00,0x01,0x05,0x00,0x00,0x03,0x01,0x02,0x02,0x03,0x03,0x03,0x02,0x03,0x03,
0x04,0x04,0x05,0x05,0x04,0x04,0x04,0x05,0x06,0x02,0x0F,0x07,0x04,0x06,0x07,0x07,
0x04,0x05,0x05,0x05,0x04,0x04,0x05,0x05,0x06,0x06,0x07,0x05,0x06,0x0E,0x03,0x07,
0x08,0x0C,0x01,0x09,0x0A,0x08,0x09,0x09,0x0A,0x0A,0x0B,0x0B,0x0A,0x0A,0x0A,0x0B,
0x08,0x08,0x09,0x0B,0x08,0x00,0x0D,0x09,0x0A,0x0B,0x0B,0x0B,0x0A,0x0A,0x0B,0x0B,
0x0C,0x0C,0x0D,0x0C,0x0C,0x0C,0x0D,0x0D,0x0E,0x0C,0x0F,0x0F,0x0A,0x0E,0x0F,0x07,
0x0C,0x0C,0x0D,0x0D,0x0D,0x0C,0x0D,0x0D,0x06,0x0E,0x0F,0x0B,0x0E,0x0E,0x0D,0x0F,
0x08,0x08,0x09,0x09,0x08,0x09,0x09,0x09,0x0A,0x02,0x0F,0x0B,0x0A,0x0A,0x0B,0x09,
0x08,0x08,0x08,0x09,0x08,0x08,0x09,0x09,0x08,0x0A,0x0B,0x0B,0x0A,0x0E,0x03,0x0B,
0x0C,0x0C,0x0F,0x0D,0x04,0x0C,0x0D,0x09,0x0F,0x0E,0x0F,0x0F,0x0E,0x0E,0x0F,0x0F,
0x08,0x0C,0x0D,0x05,0x0C,0x0E,0x0D,0x0D,0x0E,0x0E,0x0F,0x0F,0x0E,0x0E,0x0F,0x0E};

Код: Выделить всё

void rf12_txdata(unsigned char * data, unsigned char number)
{	unsigned char i, checksum;
	LED_TX=1;
	rf12_trans(0x8238);			// TX on
	rf12_ready();
	rf12_trans(0xB8AA);                 //5 байт синхронизации. АА - за счет чередования нулей и единиц помогает приемнику "тактироваться" в переданном пакете
	rf12_ready();
	rf12_trans(0xB8AA);
	rf12_ready();
	rf12_trans(0xB8AA);
	rf12_ready();
	rf12_trans(0xB82D);
	rf12_ready();
	rf12_trans(0xB8D4);
	rf12_ready();
	rf12_trans(0xB800|(pgm_read_byte(&hamminge[number/16])));	// передается размер буфера данных
	rf12_ready();
	rf12_trans(0xB800|(pgm_read_byte(&hamminge[number&15])));
	if (number<=_MAX_BUF)		// если это подтверждение получения, то данных отправлять не нужно
	{	checksum=id;
		rf12_ready();
		rf12_trans(0xB800|(pgm_read_byte(&hamminge[id/16])));	// Paket ID
		rf12_ready();
		rf12_trans(0xB800|(pgm_read_byte(&hamminge[id&15])));
		for (i=0; i<number; i++)
		{	rf12_ready();
			rf12_trans(0xB800|(pgm_read_byte(&hamminge[*data/16]))); //каждый байт кодируется и посылается 2 раза. один так
			rf12_ready();
			rf12_trans(0xB800|(pgm_read_byte(&hamminge[*data&15]))); //второй раз так
			checksum+=*data;
			data++;
		}
	}
	else
	{	checksum=number;
	}
	checksum=256-checksum;
	rf12_ready();
	rf12_trans(0xB800|(pgm_read_byte(&hamminge[checksum/16])));	// Контрольная сумма для проверки
	rf12_ready();
	rf12_trans(0xB800|(pgm_read_byte(&hamminge[checksum&15])));
	rf12_ready();
	rf12_trans(0xB800);			// dummy data
	rf12_ready();
	rf12_trans(0x8208);			// TX off
	LED_TX=0;
}

Код: Выделить всё

unsigned char rf12_rxdata(unsigned char *data, unsigned char *id)
{	unsigned char i, number,checksum;
	LED_RX=1;
	rf12_ready();
	number =(pgm_read_byte(&hammingd[rf12_trans(0xB000)&255])*16);	// Размер переданного буфера
	rf12_ready();
	number|=(pgm_read_byte(&hammingd[rf12_trans(0xB000)&255]));
	if (number>_MAX_BUF)				// Если это не подтверждение, то
	{	rf12_ready();
		*data[b] =[/b](pgm_read_byte(&hammingd[rf12_trans(0xB000)&255])*16); //прием первого байта
		rf12_ready();
		*data[b]|=[/b](pgm_read_byte(&hammingd[rf12_trans(0xB000)&255])); //прием второго байта
		rf12_trans(0xCA81);			// restart syncword detection:
		rf12_trans(0xCA83);			// enable FIFO
		LED_RX=0;
		return number;
	}
	rf12_ready();
	*id =(pgm_read_byte(&hammingd[rf12_trans(0xB000)&255])*16);		//  Paket ID
	rf12_ready();
	*id|=(pgm_read_byte(&hammingd[rf12_trans(0xB000)&255]));
	checksum=*id;
	for (i=0; i<number; i++)
	{	rf12_ready();
		*data =(pgm_read_byte(&hammingd[rf12_trans(0xB000)&255])*16);
		rf12_ready();
		*data|=(pgm_read_byte(&hammingd[rf12_trans(0xB000)&255]));
		checksum+=*data;
		data++;
	}
	rf12_ready();
	i=(pgm_read_byte(&hammingd[rf12_trans(0xB000)&255])*16);		// Контрольная сумма
	rf12_ready();
	i|=(pgm_read_byte(&hammingd[rf12_trans(0xB000)&255]));
	checksum+=i;
	rf12_trans(0xCA81);			// restart syncword detection:
	rf12_trans(0xCA83);			// enable FIFO
	LED_RX=0;
	if (checksum)
		return 255;				// checksum error
	else
		return number;			// data ok
}