125Khz Long Distance Rfid Card Reader Module Ultra RFID RF Card Serial Wg26 Output Module

 Void Init_ Uart (void)//Initialize baud rate, 7.3728M crystal oscillator, 9600 8 N 1

{

UCSR0B=0x00;

UCSR0A=0x00;

UCSR0C=0x06;

UBRR0L=0x26;

UBRR0H=0x00;

UCSR0B=0x90;

}

#Pragma vector=USART_ RX_ Vect//Serial port interrupt receiving card number.

__ Interrupt void Usart_ Rxc (void)

{

Char Rx_ Char;

Rx_ Char=UDR0;

If (Rx_Char==0X02) Rx_ Length=0// Received data header, receive count starting from 0

Rx [Rx_Length]=Rx_ Char;

Rx_ Length++;

If (Rx_Char==0X03)//Received data tail

{

Comm_ Start=1// Data reception completion flag bit

Cbi (UCSR0B, RXEN0)// Temporarily close the serial port

}

}

Void main (void)

{

While (1)

{

If (Comm_Start==1)//The main program determines if a complete card number is received

{

Comm_ Start=0;

Sbi (UCSR0B, RXEN0)// Open serial port reception

LED_ ON;

}

}

}