tlc549get.c

keil c51编写的TLC549驱动函数

#include "tlc549.h"
unsigned char tlc549get(void)
{
	char i;
	unsigned char rt=0;
	DATA=1;
	CLK=0;
	CS=0;
	if (DATA&1)
		rt|=0x80;
	CLK=1;
	CLK=0;
	for (i=6;i>0;i--)
	{
		CLK=1;
		if (DATA&1)
			rt|=1<<i;
		CLK=0;
	}
	CLK=0;
	CS=1;
	return rt;
}