9851.c

AD公司的DDS芯片AD9851的驱动

/*
unsigned int *DATA_PORT;
unsigned int FQ_UD;
unsigned int W_CLK;
unsigned int _9851_RESET;

void ini_9851(unsigned char port,unsigned int _9851_reset,unsigned int pq_ud_port,unsigned int w_clock_port)
{
	if (port=='b'|port=='B')
		DATA_PORT=0x7005;
	else
		DATA_PORT=0x7000;		
		W_CLK=w_clock_port;
		FQ_UD=pq_ud_port;
		_9851_RESET=_9851_reset;	
	*DATA_PORT|=_9851_RESET;
	*DATA_PORT&=(_9851_RESET^0xffff);
}
void senddata(unsigned int *data_array)
{
	unsigned int i,temp;
	*DATA_PORT&=(FQ_UD^0xffff);
	for (i=0;i<5;i++)
	{
		*DATA_PORT&=(W_CLK^0xffff);
		temp=*DATA_PORT;
		temp&=0xff00;
		temp|=data_array[i];
		*DATA_PORT=temp;
		*DATA_PORT|=W_CLK;	
	}
	*DATA_PORT|=FQ_UD;
}

void ini_IO()
{
	unsigned int *data,*attrib,*dir;
	data=0x7000;
	attrib=0x7003;
	dir=0x7002;
	*dir=0xffff;
	*attrib=0xffff;
	*data=0;
}*/
/*
void add_array(unsigned int *array)
{
	if (array[3]==255)
	{
		array[3]=0;
		if (array[2]==255)
		{
		 	array[2]=0;
		 	if (array[1]==255)
		 	{
		 		array[1]=0;
		 		if (array[0]==255)
		 		array[0]=0;
		 		else array[0]++;
		 	}
		 	else array[1]++;
		 }
		else array[2]++;
	}
	else array[3]++;
}

void add_array1(unsigned int *array,unsigned int number)
{
	unsigned int H,L;
	unsigned long int temp;
	L=array[2];
	L<<=8;
	L+=array[3];
	H=array[0];
	H<<=8;
	H+=array[1];
	temp=(unsigned long int)number+(unsigned long int)L;
	if (temp>65535)
	H++;
	L+=number;
	array[3]=L&0x00ff;
	array[2]=L>>8;
	array[1]=H&0x00ff;
	array[0]=H>>8;
}*/