mega169.h

来自「avrprog_boot 程序」· C头文件 代码 · 共 30 行

#ifndef _MEGA169_H_
#define _MEGA169_H_

#define DEVTYPE		0x79

#define SIG_BYTE3	0x1E
#define SIG_BYTE2	0x94
#define SIG_BYTE1	0x05


#ifdef UART_DOUBLESPEED
#define UART_CALC_BAUDRATE(baudRate) ((uint32_t)(F_CPU) / ((uint32_t)(baudRate) *8) -1)
#else
#define UART_CALC_BAUDRATE(baudRate) ((uint32_t)(F_CPU) / ((uint32_t)(baudRate)*16) -1)
#endif

#define UART_BAUD_HIGH	UBRRH
#define UART_BAUD_LOW	UBRRL
#define UART_STATUS	UCSRA
#define UART_TXREADY	UDRE
#define UART_RXREADY	RXC
#define UART_DOUBLE	U2X
#define UART_CTRL	UCSRB
#define UART_CTRL_DATA	((1<<TXEN) | (1<<RXEN))
#define UART_CTRL2	UCSRC
#define UART_CTRL2_DATA	((1<<UCSZ1) | (1<<UCSZ0))
#define UART_DATA	UDR

#endif // #ifndef _MEGA169_H_