tick.h

51上的RTOS

#define      M_FOSC          11059200
#define      M_SECOND        10
#define      M_CLOCK         12
#define      TIMES           M_SECOND*MFOSC/M_CLOCK/1000
#define      COUNTER         65536-TIMES
#define      T0H_INIT_VAL    COUNTER/256
#define      T0L_INIT_VAL    COUNTER%256