switch.h

Interface 4x4 matrix keypad with 8051 IO

void init_switch(void);


extern Queue xdata switch_buff;
extern Queue xdata key_buff;

extern u8 tempkey;
extern bit tempk;
extern bit surek;
extern u8 surekey;
extern u8 fastkey;

extern bit menu;
extern bit numkey;
extern bit big;
extern bit backsp;
extern bit enter;
extern bit next;
extern bit previous;

extern bit scrollmode;

extern bit scrollup;
extern bit scrolldown;
extern bit scrollhome;
extern bit scrollend;
extern bit scrollpup;
extern bit scrollpdown;
extern bit scrollleft;
extern bit scrollright;


extern bit standby;
extern u16 oneminute;