pentabug/firmware/bootloader/mega88.h

#ifndef _MEGA88_H_
#define _MEGA88_H_

/* Part-Code ISP */
#define DEVTYPE_ISP     0x76
/* Part-Code BOOT */
#define DEVTYPE_BOOT    0x77

#define SIG_BYTE1	0x1E
#define SIG_BYTE2	0x93
#define SIG_BYTE3	0x0F

#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<<UCSZ00)|(1<<UCSZ01)//((1<<URSEL0) | (1<<UCSZ10) | (1<<UCSZ00))
#define UART_DATA	UDR0

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 _MEGA88_H_