writesda.c

来自「AT90S8515读写AT17C010源程序」· C语言 代码 · 共 13 行

// WriteSDA.c

#include "at17c.h"
 
void WriteSDA(unsigned char state) {

    if (state)        
        DDRB &= 0xfe; // input ... pullup will pull high or slave will drive low
    else
        DDRB |= 0x01; // output ... port latch will drive low

}