keyboard.h

该程序是医院用的CPCR记录仪的终端控制程序

unsigned char scankey(void);
unsigned char keyvalue1(void);
unsigned char keyvalue2(void);
unsigned char keyvalue3(void);
unsigned char keyvalue4(void);
unsigned char keyvalue(void);
unsigned char get_pw(void);
void delay1(unsigned char second);
unsigned char CMP_STRING(unsigned char *pt1,
                         unsigned char *pt2,unsigned char len);
unsigned char CMP_PW(unsigned char password);		
void delay_us(int time);
void delay_ms(unsigned int time);