da.c

基于dsp的da输出程序

/************************************************************************************
	filename:	da.c
	版权(c) 	2003-		北京合众达电子技术有限责任公司			                *
*  	设计者：	戴展波	
*************************************************************************************/

#include <string.h>
#include <stdlib.h>
#include <system_init.h>

#ifndef _register
#define _register

ioport unsigned port0014;
#define da811cs	port0014
	
ioport unsigned port0010;
#define ldac	port0010

volatile unsigned int* SWWSR = (volatile unsigned int *) 0x0028;

ioport unsigned port001c;
#define data_close	port001c

#endif

//#define RAND_MAX 1

extern void da_setup(int tongdao,int kind,int freq,int value,unsigned short noise);
extern void da_end(int tongdao);
extern void init_timer1(void);
extern void da_run(void);
void main();

int i1 = 0;
void main()
{
	/* 设置软件延时 */
	*SWWSR = 0x4019;		
	/* BOOT切换 */
	data_close = 0;
	/* 初始化系统 */
	init_system();
	/* 初始化定时器1 */
	init_timer1();
	/* 设置DAC811DA通道*/
	da_setup(0,0,50,5000,1);
	/* 设置DAC7724的0通道 */
	da_setup(1,0,100,5000,0);
	da_setup(2,0,50,5000,0);
	da_setup(3,0,100,5000,0);
	da_setup(4,0,100,5000,0);
	da_setup(5,0,100,5000,0);
	da_setup(6,0,100,5000,0);
	da_setup(7,0,100,5000,0);
	da_setup(8,0,100,5000,0);
	da_setup(9,0,100,5000,0);
	da_setup(10,0,100,5000,0);
	da_setup(11,0,100,5000,0);
	da_setup(12,0,100,5000,0);
	da_setup(13,0,100,5000,0);
	da_setup(14,0,100,5000,0);
	da_setup(15,0,100,5000,0);
	da_setup(16,0,100,5000,0);
	/* 运行 */
	da_run();
	/* 开总中断 */
	asm(" rsbx intm ");
//	for(i1 = 0; i1 <= 200; i1++);
		
//	da_end(0);

	for(;;)
	{

	}
}