/*************** writer:shopping.w ******************/
#include <reg52.h>
#include <intrins.h>
#define uchar unsigned char
#define uint unsigned int
sbit DIN = P2^0;
sbit CSB = P2^1;
sbit CLK = P2^2;
uchar Disp_Buffer[8]=
{
2,0,0,9,10,8,10,9
};
void DelayMS(uint x)
{
uchar t;
while(x--)
{
for(t=120;t>0;t--);
}
}
void Write(uchar Addr,uchar Dat)
{
uchar i;
CSB = 0;
for(i=0;i<8;i++)
{
CLK = 0;
Addr <<= 1;
DIN = CY;
CLK = 1;
_nop_();
_nop_();
CLK = 0;
}
for(i=0;i<8;i++)
{
CLK = 0;
Dat <<= 1;
DIN = CY;
CLK = 1;
_nop_();
_nop_();
CLK = 0;
}
CSB = 1;
}
void Initialise()
{
Write(0x09,0xff);
Write(0x0a,0x07);
Write(0x0b,0x07);
Write(0x0c,0x01);
}
void main()
{
uchar i;
Initialise();
DelayMS(1);
for(i=0;i<8;i++)
{
Write(i+1,Disp_Buffer[i]);
}
while(1);
}