initialization.h~

this code is such as a test code of interfacing microcontroller with MMC card

void AVR_Initialize()
{
          PORTA=0x00;         PORTB=0x00;         PORTC=0x00;         PORTD=0x00;
          DDRA=0x00;          DDRB=0xB0;          DDRC=0x00;          DDRD=0x00;

// USART initialization
// Communication Parameters: 8 Data, 1 Stop, No Parity
// USART Receiver: On
// USART Transmitter: On
// USART Mode: Asynchronous
// USART Baud Rate: 9600
UCSRA=0x00;
UCSRB=0xD8;
UCSRC=0x86;
UBRRH=0x00;
UBRRL=0x2F;

// Analog Comparator initialization
// Analog Comparator: Off
// Analog Comparator Input Capture by Timer/Counter 1: Off
ACSR=0x80;
SFIOR=0x00;

// SPI initialization
// SPI Type: Master
// SPI Clock Rate: 57.600 kHz
// SPI Clock Phase: Cycle Half
// SPI Clock Polarity: Low
// SPI Data Order: MSB First
SPCR=0x53;
SPSR=0x00;
}