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

源代码在线查看: main.c

软件大小: 35052 K
上传用户: jjdgtsd80ux
关键词: 8051 时间触发 嵌入式系统 微控制器
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相关代码

				/*------------------------------------------------------------------*-
				
				   Main.C (v1.00)
				
				  ------------------------------------------------------------------
				
				   Simple test program for I2C (24C64) library.
				
				   Connect a 24C64 to the SDA and SCL pins described 
				   in the library file (I2C_Core.C).
				
				   Terminating resistors not generally required on the bus.
				
				   Pull all three address lines (on the EEPROM) to ground.
				
				
				   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_ROM.h"
				#include "Delay_T0.h"
				
				// In this test program, we define the error code variable here
				// (Usually in the scheduler library)
				tByte Error_code_G = 0;
				
				void main( void )
				   {
				   tByte data1 = 0;
				   tByte data2 = 0;
				
				   tWord Data_address = 0;
				
				   while (1) 
				      {
				      Data_address = data1;
				
				      // Write to eeprom
				      I2C_Write_Byte_AT24C64(Data_address, data1);
				
				      // Read back from eeprom
				      data2 = I2C_Read_Byte_AT24C64(Data_address);
				
				      // Display value from eeprom
				      P1 = 255 - data2;
				
				      // Display error code
				      P2 = 255 - Error_code_G;
				
				      if (++data1 == 255)
				         {
				         data1 = 0;
				         }
				
				      Hardware_Delay_T0(1000);
				      }   
				   }
				
				/*------------------------------------------------------------------*-
				  ---- END OF FILE -------------------------------------------------
				-*------------------------------------------------------------------*/
				
				
							

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