define.h

来自「atmega128单片机串口调试程序」· C头文件 代码 · 共 15 行

#define CRYSTAL 11059200                       //晶振11.0592MHZ
#define BAUD 19200                             //通讯波特率38.4kbps
#define BAUD_SETTING (unsigned char)((unsigned long)CRYSTAL/(16*(unsigned long)BAUD)-1) 
#define BAUD_H (unsigned char)(BAUD_SETTING>>8) 
#define BAUD_L (unsigned char)BAUD_SETTING 

#define	U8	unsigned char
#define	U16	unsigned int
#define	S8	signed char
#define	S16	signed int
#define U32	unsigned long
#define S32	signed long
#define F32 float