config.#1

语音信号加密

/////////////////////////////////////
//  Generated Initialization File  //
/////////////////////////////////////

#include "c8051F020.h"
#include <math.h>
#include <absacc.h>

// Peripheral specific initialization functions,
// Called from the Init_Device() function
void Reset_Sources_Init()
{
    WDTCN     = 0xFF;
}

void Timer_Init()
{
    TMOD      = 0x10;
    T2CON     = 0x04;
    RCAP2L    = 0xAF;
    RCAP2H    = 0x3C;
    TL2       = 0xAF;
    TH2       = 0x3C;
}

void ADC_Init()
{
    ADC0CN    = 0xCC;
    ADC0LTH   = 0x08;
    ADC0LTL   = 0x59;
    ADC0GTH   = 0x07;
    ADC0GTL   = 0x90;
}

void DAC_Init()
{
    DAC0CN    = 0x80;
}

void Comparator_Init()
{
    int i = 0;
    CPT0CN    = 0x85;
    for (i = 0; i < 60; i++);  // Wait 20us for initialization
    CPT0CN    &= ~0x30;
}

void Voltage_Reference_Init()
{
    REF0CN    = 0x03;
}

void Port_IO_Init()
{
    P0MDOUT   = 0xFF;
    P1MDOUT   = 0xFF;
    P2MDOUT   = 0xFF;
    P3MDOUT   = 0xFF;
    XBR2      = 0x40;
}

void Oscillator_Init()
{
    int i = 0;
    OSCXCN    = 0x67;
    for (i = 0; i < 3000; i++);  // Wait 1ms for initialization
    while ((OSCXCN & 0x80) == 0);
    OSCICN    = 0x0C;
}

void Interrupts_Init()
{
    IE        = 0xA0;
    IP        = 0x20;
    EIE1      = 0x04;
    EIE2      = 0x02;
}

// Initialization function for device,
// Call Init_Device() from your main program
void Init_Device(void)
{
    Oscillator_Init();
	Reset_Sources_Init();
    Timer_Init();
    ADC_Init();
    DAC_Init();
    Comparator_Init();
    Voltage_Reference_Init();
    Port_IO_Init();
    Interrupts_Init();
}

void timer2int(void);
void adc0int(void);
void adc0wint(void);
void bootdsp(void);
void wait(void);

sbit hint=P0^0;
sbit hwr=P0^1;
sbit hrdy=P0^2;
sbit hcnt0=P0^3;
sbit hcnt1=P0^4;
sbit hcs=P0^5;
sbit hds2=P0^6;
sbit hds1=P0^7;
sbit has=P3^0;
sbit txen=P3^3;
sbit rxen=P3^4;
sbit bf1=P3^5;
sbit bf2=P3^6;
sbit bf3=P3^7;


unsigned int flag1=0;
unsigned int flag2=0;
unsigned int flag3=0;
unsigned int i,j,a;

void main (void) {
   
   WDTCN = 0xde;                  //禁止看门狗             
   WDTCN = 0xad;
   Init_Device();                 //初始化片内设备
   has=1;
   hcs=1;
   hds2=1;
   hint=1;
   a=0;  
   wait(); 
   while(bf2==1); 
   while(hrdy==0);            
   bootdsp();                     //DSP加载
   
   WDTCN = 0x7f;
   bf1=0;
   txen=1;
   rxen=0;
   while (1)
   {WDTCN = 0xa5;
   }
}

void timer2int(void) interrupt 5        //定时器2溢出中断
{ 
TF2=0; 
WDTCN = 0xa5;
} 

void adc0int(void) interrupt 15        //ADC采集完毕中断 
{
a=ADC0H;
a=(a<<8)+ADC0L;

if(flag2==0)
{flag1=0;
 flag1=0;}
else if(flag2>=16)
  {  if((flag2-flag1)<1)
          txen=0;
	 else txen=1;
   	    
		flag1=0;
        flag2=0;
        flag3=0;
  }

if((a<0x790)||(a>0x859))
flag3++;
if(flag3>=2)
{
txen=1;}

flag2++;
AD0INT=0;  
WDTCN = 0xa5;
} 

void adc0wint(void) interrupt 8        //ADC窗口比较器中断
{ 

  flag1++;
  AD0WINT=0;
  WDTCN = 0xa5;
} 

void wait()                            //延时
{for(j=0;j<10;j++)
{WDTCN = 0xa5;}}

void bootdsp(void)    //DSP加载程序
{
hwr=1;
has=1;
hds1=1;
while(hrdy==0)
{WDTCN = 0xa5;}

hcs=0;              //设置加载程序区首地址
hwr=0;
hcnt0=0;
hcnt1=1;
P1=0x01;
P2=0x00;
has=0;
hds1=0;
has=1;
hwr=0;
hds1=1;
while(hrdy==0)
{WDTCN = 0xa5;}
wait();

for(i=8192;i<24320;i++)  //自动地址增加方式加载程序，DSP程序在片内0X4000开始的空间
{
hwr=0;
hcnt0=1;
hcnt1=0;
P1=CBYTE[i*2];
P2=CBYTE[i*2+1];
has=1;
hds1=0;
has=1;
hwr=0;
has=1;
hds1=1;
while(hrdy==0)
{WDTCN = 0xa5;}
wait();
}

hcs=0;                 //设置启动入口暂存区字地址1
hcs=0;
hwr=0;
hcnt0=0;
hcnt1=1;
P1=0x00;
P2=0x61;
has=0;
hds1=0;
has=1;
hwr=0;
hds1=1;
while(hrdy==0)
{WDTCN = 0xa5;}
wait();

hwr=0;                   //写入程序入口字节地址低16位
hcnt0=1;
hcnt1=1;
P1=0x2b;
P2=0xde;
has=1;
hds1=0;
has=1;
hwr=0;
hds1=1;
while(hrdy==0)
{WDTCN = 0xa5;}
wait();

hwr=0;                   //设置启动入口暂存区字地址2 
hcnt0=0;
hcnt1=1;
P1=0x00;
P2=0x60;
has=0;
hds1=0;
has=1;
hwr=0;
hds1=1;
while(hrdy==0)
{WDTCN = 0xa5;}
wait();

hwr=0;                  //写入程序入口字节地址高8位并指示可以运行
hcnt0=1;
hcnt1=1;
P1=0xff;
P2=0x00;
has=1;
hds1=0;
has=1;
hwr=0;
hds1=1;
while(hrdy==0)
{WDTCN = 0xa5;}
wait();

hwr=0;                //清除复位标志
hcnt0=0;
hcnt1=0;
P1=0x00;
P2=0x01;
has=0;
hds1=0;
has=1;
hwr=0;
hds1=1;
while(hrdy==0)
{WDTCN = 0xa5;}
hwr=1;
hcs=1;

}