#include?
#include?
#include?

sbit?CS=P2^0;
sbit?Dout=P2^1;
sbit?Din=P2^2;
sbit?RDY=P2^3;
sbit?SCK=P2^4;
sbit?RESET=P2^6;

void?spi_sendbyte（unsigned?char?ch）;
unsigned?char?spi_readbyte（void）;
unsigned?int?spi_readchar（void）;
void?AD7708_int（unsigned?char?chal）;
void?delay（unsigned?int?x）;


void?main（）
{
???unsigned?int?ad7708value;
//???unsigned?char?i;
???unsigned?char?statvalue;
???float?advolt;
???SCON=0x57;
???TMOD=0x21;
???TH1=0xFD;
???TL1=0xFD;
???EA=1;
???TR1=1;
???CS=0;
???RESET=1;
???delay（500）;
???RESET=0;
???delay（500）;
???RESET=1;
??spi_sendbyte（0x01）;?//配置MOD寄存器
??spi_sendbyte（0x53）;
??delay（100）;
??AD7708_int（8）;
??CS=1;

??while（1）
???{?
?//	for（i=0;i<2;i++）?
?//????{
????CS=0;
	?AD7708_int（8）;??