main.c

嵌入式单片机控制温度传感的无线收发方案！

//ICC-AVR application builder : 2006-4-4 11:28:26
// Target : M16 PTR8000模块简单测试
// Crystal: 4MHz(11.059Mhz)

//最关键的是SPI的初始化，MSB首位和极性方式00，极性方式错误，数据则不正确

#include "confg.h"


#define MASTER  //编译控制是主机还是从机


void SystemIni(void);

void port_init1(void)
{
 PORTB = 0xFe;
 DDRB  = 0x00;
 PORTC = 0x00; //m103 output only
 DDRC  = 0x00;
 PORTD = 0xFF;
 DDRD  = 0x00;
}

void port_init2(void)
{

 PORTB = 0xD7;
 DDRB  = 0x2C;
 PORTC = 0x00; //m103 output only
 DDRC  = 0x00;
 PORTD = 0x1f;
 DDRD  = 0xe0;
}

//SPI initialize
void spi_init(void)
{uchar temp;

 //SPCR = 0xD1; //SPI中断允许,SPI允许，主机模式，MSB，极性方式00，1/16系统时钟速率
 SPCR = 0x51; //不使用SPI中断,其它同上
 SPSR = 0x00; //setup SPI
 
 temp = SPSR; //!!!
 temp = SPDR; //清空SPI，和中断标志，使SPI空闲    
}




//call this routine to initialize all peripherals
void init_devices(void)
{
 //stop errant interrupts until set up
 CLI(); //disable all interrupts 
 port_init1();
 spi_init();
 uart_init();

 MCUCR = 0x0c;
 GICR|= 0x80;//enable INT1 interrupt

 GIFR   = 0xc0;// 清除INT0、INT1 中断标志位
 SEI(); //re-enable interrupts
 //all peripherals are now initialized
}

void init_devices2(void)
{
 //stop errant interrupts until set up
 CLI(); //disable all interrupts
 port_init2();
 spi_init();
 //uart_init();

 //MCUCR = 0x00;
 //GICR  = 0x00;

 SEI(); //re-enable interrupts
 //all peripherals are now initialized
}

void port_init3(void)
{
 PORTB = 0x00;
DDRB  = 0x00;
 //PORTB = 0xD7;
// DDRB  = 0x2C;
 PORTC = 0x00; //m103 output only
 DDRC  = 0x00;
 PORTD = 0x00;
 DDRD  = 0x20;
}

void main(void)
{
   uchar *string;
   int i;
  init_devices();
   SystemIni();
   puts_hh("test start!");
   init_devices2();
/*  
  // spi_init();
   port_init3();  
   //nrf905_Init(); 
   nrf905_Off();//断开电源  
 
   ACSR=0x80; //别忘了关掉模拟比较器的电源哦
    MCUCR=(0<<SM2)|(1<<SM1)|(1<<SM0);//0 1 1 省电模式 	
   MCUCR|=(1<<SE);//仅在SLEEP 指令的前一条指令置位SE
   while(1){
    asm( "sleep" );}
	//*/
	
//*
     while(1)	  {	   
    
	  delay_10ms(150);
	  init_devices();
	  ad_convert();//开始AD转换  
	  init_devices2();
	  Read_nrf905Add();//读取nrf905的接受和发送地址
      nrf905_Init(); 
      RfSendProc();//发送数据
	  printf("slave add is %d\r\n",Tx_Buf[0]);
	  printf("command is %x\r\n",Tx_Buf[1]);
	  i=Tx_Buf[2]+(Tx_Buf[3]<<8);
	  printf("temperlature is %d\r\n",i);
	  i=Tx_Buf[4]+(Tx_Buf[5]<<8);
	  printf("vcc is %d\r\n",i);
	 
    }  
	//*/
	
}


void SystemIni()
{
 delay_10ms(20);
}

/*
#pragma interrupt_handler int1_isr:3
void int1_isr(void)
{     
      int m;
      uchar ss[2];
     // delay_10ms(20); 
     // puts_hh("int1");
       RfRecvProc();//接收处理
	     for(m=0;m<32;m++)
	    {
	     sprintf(ss,"%c",Rx_Buf[m]);
	     putss(ss);//向串口打印接收到的内容
	    }
	     putch(0x0a);
	     putch(0x0d);
		 CLR(PORTB,AM);
}

*/