main.c

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语言 代码 · 共 57 行

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

   Main.C (v1.00)

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

   Simple test program for I2C (DS1621) library.

   Connect a DS1621 to the SDA and SCL pins described 
   in the library file (I2C_Core.C).

   Terminating resistors not generally required on the bus.


   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.

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

#include "Main.h"
#include "I2C_1621.h"
#include "Delay_T0.h"

tByte Temperature_G;

// In this test program, we define the error code variable here
// (Usually in the scheduler library)
tByte Error_code_G = 0;

void main( void )
   {
   I2C_Init_Temperature_DS1621();

   while(1) 
      {
      I2C_Read_Temperature_DS1621();
      P1 = 255 - Temperature_G;
      P2 = 255 - Error_code_G;
      Hardware_Delay_T0(1000);
      }   
   }

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