123.txt

本系统分电压测量和信号产生输出两大部分

#include "SPLC501USer.h"
#include "SPCE061V004.h"
#include "Zichina.h"
#define CONTROL_WORD  0x02
extern unsigned int uiKey;
unsigned int led;
/////////////////////////////////////////////////////////////////////////////////////
void delay(unsigned  int N)  
  {
  int i; 
  for(i=0;i<N;i++);
  }
//////////////////////////////////////////////////////////////////////////////////
unsigned int read2543(unsigned char CON_WORD)
{
	unsigned int ad=0,i;
	CON_WORD<<=4;     //0000 0000  1001 0000
	*P_IOA_Data&=0xffef;    //I/O CLOCK=0
	*P_IOA_Data=*P_IOA_Data&0xffdf;//*P_IOA_Data&=0xfffe;    //CS=0
	for(i=0;i<12;i++)
	{
   		if(*P_IOA_Data&0x0080) ad|=0x01;   
   		if((CON_WORD&0x80)!=0)   
   				*P_IOA_Data|=0x08;
   		else 
   				*P_IOA_Data&=0xf7;
   		*P_IOA_Data|=0x0010;  //I/O CLOCK=1
   		delay(7);
   		*P_IOA_Data&=0xffef; //I/O CLOCK=0
    	delay(7);
    	CON_WORD<<=1;
    	ad<<=1;
	}
	*P_IOA_Data=*P_IOA_Data|0x0020;//*P_IOA_Data|=0x0001;   //CS=1
	ad>>=1;
	return(ad);
}

////////////////////////////////////////////////////////////////////////////////////////////////////
void Display(unsigned int z)
{  
    unsigned int s,sf,bf,n,m;
    unsigned int Data[10] = {0x0030,0x0031,0x0032,0x0033,0x0034,0x0035,0x0036,0x0037,0x0038,0x0039};    
    s=z/10000;
    sf=(z%10000)/1000;
    bf=(z%1000)/100;
    n=(z%100)/10;
    m=z%10;
    LCD501_ClrScreen(0);
    LCD501_PutString(0,0,(unsigned int *)"Voltage is:");
    if(s!=0)	
    {
    	LCD501_PutChar(24,23,Data[s]);
    	LCD501_PutChar(32,23,Data[sf]);
    }
    if(s==0&&sf!=0)
    	LCD501_PutChar(32,23,Data[sf]);
    LCD501_PutChar(40,23,Data[bf]);
    LCD501_PutChar(48,23,'.');
    LCD501_PutChar(56,23,Data[n]);
    LCD501_PutChar(64,23,Data[m]);
    LCD501_PutChar(82,23,'V');
    if(led==1)
    {
    	LCD501_Bitmap(80,45,(unsigned int *)encoding_04);
		LCD501_Bitmap(96,45,(unsigned int *)encoding_05);
		LCD501_Bitmap(112,45,(unsigned int *)encoding_06);
    }	
    *P_Watchdog_Clear=C_WDTCLR;
}
include <AT89X52.H>
#include <intrins.h>
#define  uchar unsigned char
#define  uint  unsigned int

//   定义端口
//   P0 为DDS数据口
//	 P2.0--P2.5 为DDS地址口
sbit reset =P2^7;
sbit wr    =P2^6;
sbit osk   =P3^4;
sbit fdata =P3^5;
sbit rd    =P3^6;
sbit updclk=P3^7;

//   定义端口
//   液晶数据?
#define CS    P3_0	//片选 高电平有效 单片LCD使用时可固定高电平
#define SID   P3_1	//数据
#define SCLK  P3_2	//时钟
#define RESET P3_3	//LCD复位，LCD模块自带复位电路。可不接
unsigned int N1,N2,N3,N4,N5,N6;
unsigned char data_temp=0;
unsigned char code ma1[]={0xd5,0xfd,0xcf,0xd2,0xd0,0xc5,0xba,0xc5,0xc8,0xce,0xd2,0xe2,0xb2,0xa8,0xd0,0xce};//{"正弦信号任意波形输出范围"};
                          
unsigned char code ma2[]={"0123456789"};
unsigned char code ma3[]={0xea,0xe4,0xb3,0xf6,0xb7,0xb6,0xce,0xa7};
long int data1=0;
unsigned char data_show;
部分函数（略）
main()
{
	init();			            //DDS初始化
	update_clk();	           //写入DDS更新时钟40kHz
	contr_word();	           //写入DDS控制字  正弦信号模式
	lcdinit();                  //液晶初始化
	menu_show();             //显示开机菜
	while(1)
	{
	    data_temp=Key_Get();
		switch(data_temp)
		{
			case 1  : input_10kHz();      //产生10kHz信号
			          break;
			case 2  : input_renyi();	  //产生任意信号
			          break;
			case 3  : input_bujin();	  //步进输出
			          break;
			default : break;
		}
	}
}