main.c

电梯楼层采集器代码

//ICC-AVR application builder : 2008-5-9 21:38:30
// Target : M16
// Crystal: 16.000Mhz

#include"include.h"
#include "main.h"

//端口初始化
//数据寄存器 PORTx    读写寄存器
//引脚配置为输入PORTx=1 上拉电阻使能 \\PORTx=0 关闭上拉电阻 \\复位时引脚为高阻态
//引脚配置为输出PORTx=1 引脚输出高电平"1" \\PORTx=0 引脚输出低电平"0"
//数据方向寄存器 DDRx  读写寄存器   =1引脚配置为输出  =0引脚配置为输入
//端口输入引脚 PINx   只读寄存器
void port_init(void)
{
/*PA上拉电阻使能 引脚配置为输入*/
 PORTA = 0xFF;
 DDRA  = 0x00;	
/**/ 
 PORTB = 0x20;
 DDRB |= (1<<5)|(1<<7);
/*PC上拉电阻使能 引脚配置为输入*/
 PORTC = 0xFF; //m103 output only
 DDRC  = 0x00;
/**/ 
 PORTD = 0x00; 
 DDRD  = 0x20;
}

//call this routine to initialize all peripherals
void init_devices(void)
{
 //stop errant interrupts until set up
 CLI(); //disable all interrupts
 port_init();
 Uart0_Init();
 Timer0_init();
 MCUCR = 0x00;
 GICR  = 0x00;
 TIMSK = 0x01; //timer interrupt sources
 Power_LED_Drown();
 SEI(); //re-enable interrupts
 //all peripherals are now initialized
}


void DelaymS(unsigned int  cnt)
{
  unsigned int   i;
  do{
    i = 5000;
    do{
      asm("nop");
	  asm("nop");
      } while(--i);
  }while (--cnt);
}



void main(void)
{
 unsigned int i;
 struct StructOfProtocol *p_buf;
 struct Device51_StructOfProtocol *C51_buf;
 struct data *communication;
 p_buf = (struct StructOfProtocol *)Buffer485;
 
 C51_buf = (struct Device51_StructOfProtocol *)C51Buffer485;
 init_devices();
 Device_Address = 0x01;
 
 C51_buf->Address = 0x01;
 C51_buf->Command = 0x02;
 C51_buf->Data[0] = 0x03;
 C51_buf->Data[1] = 0x04;
 C51_buf->Data[2] = 0x05;
 C51_buf->Data[3] = 0x06;
 C51_buf->Length = 0x05;

 Power_LED_Light();
// BUS_SendPacket_51Device();
 while(1)
 {
  if(communication->pc_rxd)
	{
	 communication->pc_rxd = 0;
	 max485_on();
 	 UDR = 0x31; 
	}
 }
}

/*
 {
  Cyc_manage = 0x02;
  for(i=1;i<9;i*=2)	
  { 
  	switch(Cyc_manage&i)
 	{
	  case 1://处理跟PC通讯部分
	  	   communication_with_pc();
	  	   break;
	  case 2://处理跟51控制板通讯部分
	  	   communication_with_51director();
		   break;
	  case 4://取数据发送给51板
	  	   update_data_51director();
		   break;
	  case 8://检查按键发送给51控制板
	  	   communication_ReadSwitch();
		   break;
	  default:
			break;
	}
  }
 } */