/*******************************************************
*????????文件名：DDS?AD9851和數(shù)字電位器AD8400驅(qū)動程序??*
*????????功能：用單片機msp430f2274寫的DDS?AD9851和數(shù)字?*
*??????????????電位器AD8400驅(qū)動程序????????????????????*
*????????指導老師：黃玉金??????????????????????????????*
*????????設計人：中國地質(zhì)大學（武漢）?劉蒼???????????????*
*******************************************************/

#include?“msp430x22x4.h“

#define?SERIAL_SDI???P4OUT|=BIT0???//數(shù)據(jù)位D7
#define?C_SERIAL_SDI?P4OUT&=~BIT0

#define?CS???????????P4OUT|=BIT1???//AD8400控制信號
#define?C_CS?????????P4OUT&=~BIT1

#define?CLK??????????P4OUT|=BIT2???//寫控制字時鐘CLK?
#define?C_CLK????????P4OUT&=~BIT2

//#include?“msp430x22x4.h“
#define?FQ_UP????????P1OUT|=BIT1???//AD9851信號更新位FQ_UP
#define?C_FQ_UP??????P1OUT&=~BIT1

#define?W_CLK????????P1OUT|=BIT2???//寫控制字時鐘WCL