ad.c

adc例程 合众达的

#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;     
}