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#ifndef _MEGAxx4_H_

#define _MEGAxx4_H_

#ifndef UART_USE_SECOND

/* UART 0 */

#define UART_BAUD_HIGH  UBRR0H

#define UART_BAUD_LOW   UBRR0L

#define UART_STATUS         UCSR0A

#define UART_TXREADY    UDRE0

#define UART_RXREADY    RXC0

#define UART_DOUBLE         U2X0

#define UART_CTRL           UCSR0B

#define UART_CTRL_DATA  ((1<<TXEN0) | (1<<RXEN0))

#define UART_CTRL2          UCSR0C

#define UART_CTRL2_DATA ( (1<<UCSZ01) | (1<<UCSZ00))

#define UART_DATA           UDR0

#else

/* UART 1 */

#define UART_BAUD_HIGH  UBRR1H

#define UART_BAUD_LOW   UBRR1L

#define UART_STATUS         UCSR1A

#define UART_TXREADY    UDRE1

#define UART_RXREADY    RXC1

#define UART_DOUBLE         U2X1

#define UART_CTRL           UCSR1B

#define UART_CTRL_DATA  ((1<<TXEN1) | (1<<RXEN1))

#define UART_CTRL2          UCSR1C

#define UART_CTRL2_DATA ( (1<<UCSZ11) | (1<<UCSZ10))

#define UART_DATA           UDR1

#endif

#define WDT_OFF_SPECIAL

static inline void bootloader_wdt_off(void)

{

        cli();

        wdt_reset();

        /* Clear WDRF in MCUSR */

        MCUSR &= ~(1<<WDRF);

        /* Write logical one to WDCE and WDE */

        /* Keep old prescaler setting to prevent unintentional time-out */

        WDTCSR |= (1<<WDCE) | (1<<WDE);

        /* Turn off WDT */

        WDTCSR = 0x00;

}

#endif // #ifndef _MEGA644_H_