timeoutl.h

来自「CODE for embedded C ,hand coding version」· C头文件 代码 · 共 31 行

/*------------------------------------------------------------------*-
 TimeoutL.H(v1.00)
  ---------------------------------------------------------------------
  Simple software (loop ) timeout delays for the 8051 family
  *THESE VALUES ARE NOT PRECISE - YOU MUST ADAPT TO YOUR SYSTEM *
  -*------------------------------------------------------------------*/

  #ifndef _TIMEOUTL_H
  #define _TIMEOUTL_H

  //------------Public constants --------------------------------------
  //Vary this value to change the loop duration
  //THESE ARE APPROX VALUES FOR VARIOUS TIMEOUT DELAYS
  //ON 8051,12 MHZ ,12 OSC/CYCLE
  // ***MUST BE FINE TUNED FOR YOUR APPLICATION ***
  // *** Timings vary with complier optimisation settings ***
  // tWord
  #define LOOP_TIMEOUT_INIT_001ms 65435U
  #define LOOP_TIMEOUT_INIT_010ms 64535U
  #define LOOP_TIMEOUT_INIT_500ms 14535U

  //tLong
  #define LOOP_TIMEOUT_INIT_10000ms 4294795000UL

  #endif

  /*-----------------------------------------------------------------*-
  --------END OF FILE -------------------------------------------------
  -*-----------------------------------------------------------------*/