STC15F2K60S2内置SPI驱动AD5314失败求助

reporter

程序如下：

#include"STC15F2K60S2.H"
//--------两路片选----------------------
sbit ss_1=P0^6;          
sbit ss_2=P0^7;
//-------------主函数-----------------------//
void main()
{  
SPDAT=0;
SPSTAT=0Xc0;
SPCTL=0xde;
ss_1=0;
ss_2=0;          
SPDAT=0X2f;
while(!(SPSTAT&0X80));
SPSTAT=0Xc0;
SPCTL=0xde;
SPDAT=0Xf2;
while(!(SPSTAT&0X80));
ss_1=1;
ss_2=1;  
}