ads1210c.c

用C8051F020驱动的ADS1210程序,可以控制误差在低8位以内(具体没算),程序已经完全经过调试通过

//****************************************************
//*    The ADS1210 program(c and asm)version 1.0     *
//*By Li Huailiang 2007.11.12 , All is debuged right *
//****************************************************
//sampling 1000 group data,error is less than 255(low 8 bits)
//sample frequency is 19.5k,dectaition rate is 1952,all is smallest
//--------------------------------------------------------------
#pragma  REGPARMS

#include<c8051f020.h>
#include<intrins.h>
#include<absacc.h>
#include<math.h>
#include<stdio.h>
#include<stdlib.h>

#include"ads1210h.h"

#define uchar unsigned char
#define uint unsigned int
//--------------------------------------------------------------

uchar xdata RESULT[3000];
//--------------------------------------------------------------

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 PORT_Init(void)
{
   	XBR0 = 0x04;  //Enable UART0      P0.0=TXD0      P0.1=RXD0				
   	XBR1 = 0x88;                                        
	XBR2 = 0x42;
  	//P0MDOUT |= 0xFD;			
    //P1MDOUT |= 0x40;
    //P2MDOUT = 0x08; 
    //P1MDIN |= 0xFF;
    EMI0CF |= 0x32;    //use the internal XRAM only        

}
//--------------------------------------------------------------
void WDT()
{
  	   EA=0;
	   WDTCN = 0xde;    	// disable watchdog timer
   	   WDTCN = 0xad;
	   EA=1;
}
//-----------------------------------------------------------------------------
// Configure the UART0 using Timer1, for <baudrate> and 8-N-1.

void UART0_Init(void)
{
    SCON0=0x50; //选择串口方式1,波特率9600bps
    TMOD = 0x20; 
    TH1 = 0xfd; 
    TL1 = 0xfd;
    EA=1;
    ES0=1;     //UART0中断开启
    TR1=1; 
}

void delay()
{
  uint j,k;
  for(j=0;j<10;j++)
   for(k=0;k<100;k++);
}

//-------------------------------------------------------------------------

void main()
	 {
	   unsigned long data i;
	   WDT();
	   Oscillator_Init();
       PORT_Init();
       ADS1210();
	   delay();
       UART0_Init();
       for(i=0;i<3000;i++)
	   {
	    ES0=0;
		SBUF0=RESULT[i];   
        while(!TI0);        
        TI0=0;
	   }
     while(1);
}