port.h

来自「时间触发嵌入式系统设计模式:使用8051系列微控制器开发可靠应用」· C头文件 代码 · 共 60 行

/*------------------------------------------------------------------*-

   Port.H (v1.00)

  ------------------------------------------------------------------

  'Port Header' (see Chap 10) for project KEYP_232 (see Chap 20)


   COPYRIGHT
   ---------

   This code is from the book:

   PATTERNS FOR TIME-TRIGGERED EMBEDDED SYSTEMS by Michael J. Pont 
   [Pearson Education, 2001; ISBN: 0-201-33138-1].

   This code is copyright (c) 2001 by Michael J. Pont.
 
   See book for copyright details and other information.

-*------------------------------------------------------------------*/

// ------ Sch51.C ----------------------------------------

// Comment this line out if error reporting is NOT required
#define SCH_REPORT_ERRORS

#ifdef SCH_REPORT_ERRORS
// The port on which error codes will be displayed
// ONLY USED IF ERRORS ARE REPORTED
#define Error_port P1

#endif

// ------ Keypad.C ------------------------------------------------

#define KEYPAD_PORT P5

sbit C1 = KEYPAD_PORT^0;
sbit C2 = KEYPAD_PORT^1;
sbit C3 = KEYPAD_PORT^2;

sbit R1 = KEYPAD_PORT^6;
sbit R2 = KEYPAD_PORT^5;
sbit R3 = KEYPAD_PORT^4;
sbit R4 = KEYPAD_PORT^3;

// ------ Lnk_O.C -----------------------------------------------
    
// Pins 3.0 and 3.1 used for RS-232 interface


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