adc.txt

dsp2407 adc代码

#include "SEED-DEC2407.h"    
#include "AD.h"     
unsigned int j,Ad_data[16];   
   
void main()   
{   
unsigned int i;   
i = 0;   
j = 0;   
DINT;   
SystemInit();   
*IFR = 0x3f;   
*IMR = 0x01;    
AdInit();   
EINT;    
for(;   
{   
   
}   
}   
   
void SystemInit(void)   
{   
WSGR = 0;    
*WDCR = 0x68;   
*SCSR1 = 0x280;    
*XINT1CR = 0x8006;   
}   
   
void AdInit(void)   
{   
/* reset adc */   
*ADCTRL1 = 0x4000;    
*ADCTRL2 = 0x4000;   
*MAXCONV = 0;   
   
NOP;   
/* run,seq casc operation */   
*ADCTRL1 = 0x3F10;   
   
*MAXCONV = 0x0f;   
   
*CHSELSEQ1 = 0x3210;   
*CHSELSEQ2 = 0x7654;   
*CHSELSEQ3 = 0xBA98;   
*CHSELSEQ4 = 0xFEDC;   
   
*ADCTRL2 = 0x2600;   
}   
   
void PHANTOM(void)   
{   
   
}    
   
interrupt void c_int1(void)   
{   
unsigned int k;   
if((*PIVR & 0x04) == 0x04)   
{   
*PIACKR0 = *PIACKR0 | 0x04;   
Ad_data[0] = *RESULT0;   
Ad_data[1] = *RESULT1;   
Ad_data[2] = *RESULT2;   
Ad_data[3] = *RESULT3;   
Ad_data[4] = *RESULT4;   
Ad_data[5] = *RESULT5;   
Ad_data[6] = *RESULT6;   
Ad_data[7] = *RESULT7;   
Ad_data[8] = *RESULT8;   
Ad_data[9] = *RESULT9;   
Ad_data[10] = *RESULT10;   
Ad_data[11] = *RESULT11;   
Ad_data[12] = *RESULT12;   
Ad_data[13] = *RESULT13;   
Ad_data[14] = *RESULT14;   
Ad_data[15] = *RESULT15;   
*ADCTRL2 = *ADCTRL2 | 0x2000;    
}    
   
*IFR = 0x01;   
EINT;    
}