dac7724_test.c

2812 DA

#include <stdlib.h>
#include "DSP28_Device.h"
#define _const_length 0x400
#define _econst_length 0x400

interrupt void  ISRTimer0(void);
interrupt void  ISRTimer1(void);
interrupt void  ISRTimer2(void);
interrupt void  AD(void);

float	a1[16]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
unsigned int a2=0;
float	adclo=0.0;

void main(void)
{
	/*初始化系统*/
	InitSysCtrl();

	/*关中断*/
	DINT;
	IER = 0x0000;
	IFR = 0x0000;

	/*初始化PIE*/
	InitPieCtrl();
	PieCtrl.PIEIER1.bit.INTx6=1;   ///AD中断使能
	PieCtrl.PIEIER1.bit.INTx7=1;   

	/*初始化PIE中断矢量表*/
	InitPieVectTable();
	
	//初始化外设,事件管理器，AD等
    InitPeripherals();
    
    
	EALLOW;	// This is needed to write to EALLOW protected registers
	PieVectTable.TINT0 = &ISRTimer0;
	PieVectTable.XINT13 = &ISRTimer1;
    PieVectTable.XINT14 = &ISRTimer2;
    PieVectTable.ADCINT = &AD;
	EDIS;   // This is needed to disable write to EALLOW protected registers
    // Reset CPLD
   *Clear_Encoder=0x4088;
    
    /*设置CPU时钟*/
    ConfigCpuTimer(&CpuTimer0, 150, 100);	// 150MHz CPU Freq, 25 uSeconds Period (in uSeconds)
 	StartCpuTimer1();
 	    
   	ConfigCpuTimer(&CpuTimer1, 150, 100);	// 150MHz CPU Freq, 25 uSeconds Period (in uSeconds)
 	StartCpuTimer1();

 	ConfigCpuTimer(&CpuTimer2, 150, 100);	// 150MHz CPU Freq, 100 uSeconds Period (in uSeconds)
 	StartCpuTimer2();

    *DA_DIRECTION1 = 0;
    *DA_DIRECTION2 = 0;
    *DA_DIRECTION3 = 0;
    *DA_DIRECTION4 = 0;
 	
   
    /* 设置DAC7724 DA通道*/
	da_setup(0,3,50,250);
	da_setup(1,3,50,500);
	da_setup(2,3,50,750);
	da_setup(3,3,50,1000);
	da_setup(4,3,50,1000);
	da_setup(5,3,50,1000);
	da_setup(6,3,50,1000);
	da_setup(7,3,50,1000);
	
	 /*设置IER*/
	IER |= ( M_INT1 | M_INT13 | M_INT14 );	
    /*开中断*/
	EINT;   // Enable Global interrupt INTM
	ERTM;	// Enable Global realtime interrupt DBGM

	for(;;)
	{
		KickDog();
	}
} 

interrupt void  AD(void)
{
	a1[0]=((float)AdcRegs.RESULT0)*3.0/65520.0+adclo;
	a1[1]=((float)AdcRegs.RESULT1)*3.0/65520.0+adclo;
	a1[2]=((float)AdcRegs.RESULT2)*3.0/65520.0+adclo;
	a1[3]=((float)AdcRegs.RESULT3)*3.0/65520.0+adclo;
	a1[4]=((float)AdcRegs.RESULT4)*3.0/65520.0+adclo;
	a1[5]=((float)AdcRegs.RESULT5)*3.0/65520.0+adclo;
	a1[6]=((float)AdcRegs.RESULT6)*3.0/65520.0+adclo;
	a1[7]=((float)AdcRegs.RESULT7)*3.0/65520.0+adclo;
	a1[8]=((float)AdcRegs.RESULT8)*3.0/65520.0+adclo;
	a1[9]=((float)AdcRegs.RESULT9)*3.0/65520.0+adclo;
	a1[10]=((float)AdcRegs.RESULT10)*3.0/65520.0+adclo;
	a1[11]=((float)AdcRegs.RESULT11)*3.0/65520.0+adclo;
	a1[12]=((float)AdcRegs.RESULT12)*3.0/65520.0+adclo;
	a1[13]=((float)AdcRegs.RESULT13)*3.0/65520.0+adclo;
	a1[14]=((float)AdcRegs.RESULT14)*3.0/65520.0+adclo;
	a1[15]=((float)AdcRegs.RESULT15)*3.0/65520.0+adclo;
	
	AdcRegs.ADC_ST_FLAG.bit.INT_SEQ1_CLR=1;
	AdcRegs.ADCTRL2.bit.SOC_SEQ1=1;
	
	EINT;
}

interrupt void ISRTimer0(void)
{
 
    #ifdef DAC7724_0_ENABLE	
	if(tongdao_flag[0] == 1)
	{
	    *DA_PORT0 = xishu1;
	}
   #endif
  
}

interrupt void ISRTimer1(void)
{

#ifdef DAC7724_0_ENABLE	
	if(tongdao_flag[0] == 1)
	{
	    *DA_PORT0 = xishu1;
	}
#endif
#ifdef DAC7724_1_ENABLE	
	if(tongdao_flag[1] == 1)
	{
	    *DA_PORT1 = xishu2;
	}
#endif
#ifdef DAC7724_2_ENABLE		
	if(tongdao_flag[2] == 1)
	{
	    *DA_PORT2 = xishu3;
	}
#endif

	da_run();
	PieCtrl.PIEACK.bit.ACK1 = 1;
	EINT;
}

interrupt void ISRTimer2(void)
{
 
    #ifdef DAC7724_0_ENABLE	
	if(tongdao_flag[0] == 1)
	{
	    *DA_PORT0 = xishu1;
	}
   #endif
  
}